Electronic Components

Abstract

To provide an electronic component which allows both compact dimensions and desired characteristics.SOLUTION: In an electronic component 1, a coil 25 includes a plurality of conductor layers 41 and 42, and a plurality of connection conductors 43. The plurality of conductor layers 41 and 42 extend in a direction intersecting a coil axis and along an insulator layer. Each of the plurality of connection conductors 43 is coupled to the corresponding conductor layers 41 or 42 of the plurality of conductor layers 41 and 42, and extends in a lamination direction. In the conductor layers 41 and 42, among the plurality of conductor layers 41 and 42, adjacent to each other in a direction along the coil axis, a width in a direction perpendicular to an extension direction of each of the conductor layers 41 and 42 is greater than the shortest distance between the adjacent conductor layers 41 and 42. The extension direction of each of the first conductor layers 41 and the extension direction of at least one second conductor layer 42 intersect each other when viewed from the lamination direction, and they are perpendicular to the coil axis and are also inclined to a direction along the insulator layer.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to electronic components. [Background technology]

[0002] Electronic components including an element body and a coil are known. The element body includes multiple stacked insulator layers. The coil is disposed inside the element body. For example, the coil includes multiple conductor layers and multiple connecting conductors. For example, in Patent Document 1, the multiple conductor layers extend in a direction that intersects the coil axis and follows the stacking direction of the insulator layers. Each of the multiple connecting conductors is connected to a corresponding one of the multiple conductor layers and extends in the stacking direction. The multiple conductor layers include multiple first conductor layers and second conductor layers. The multiple first conductor layers are arranged along the coil axis. The second conductor layer is disposed at a different position from the multiple first conductor layers in the stacking direction and is connected to a corresponding one of the multiple first conductor layers via a connecting conductor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-141945 Summary of the Invention [Problem to be solved by the invention]

[0004] Coils with desired characteristics are being studied. The characteristics of a coil are related to inductance. Therefore, in order to ensure the desired characteristics, it is necessary to design a coil that can obtain the desired inductance. The wider the conductor layer, the smaller the inductance. However, when conductor layers are arranged on an element body of the same size, the wider the conductor layer, the shorter the shortest distance between adjacent conductor layers. If the distance between conductor layers is too small, for example, stray capacitance may occur between the conductor layers. If stray capacitance occurs, it becomes difficult to obtain the desired characteristics.

[0005] An object of one aspect of the present invention is to provide an electronic component that can be made compact while also achieving desired characteristics. [Means for solving the problem]

[0006] An electronic component according to one aspect of the present invention comprises an element body and a coil. The element body includes a plurality of stacked insulator layers. The coil is disposed inside the element body. The coil forms a coil axis along a direction perpendicular to the stacking direction of the plurality of insulator layers. The coil includes a plurality of conductor layers and a plurality of connecting conductors. The plurality of conductor layers extend in a direction intersecting the coil axis and along the insulator layers. Each of the plurality of connecting conductors is connected to a corresponding one of the plurality of conductor layers and extends in the stacking direction. The plurality of conductor layers include a plurality of first conductor layers and at least one second conductor layer. The plurality of first conductor layers are arranged along the coil axis. The at least one second conductor layer is disposed at a different position from the plurality of first conductor layers in the stacking direction. The at least one second conductor layer is connected to a corresponding one of the plurality of first conductor layers via a connecting conductor. Among the plurality of conductor layers, the width in a direction perpendicular to the extending direction of the conductor layers is greater than the shortest distance between the adjacent conductor layers. The extending direction of each first conductor layer and the extending direction of at least one second conductor layer intersect each other when viewed from the stacking direction, and are orthogonal to the coil axis and inclined with respect to the direction along the insulating layer.

[0007] In this electronic component, among the multiple conductor layers, the width of adjacent conductor layers in a direction perpendicular to the extension direction of each conductor layer is greater than the shortest distance between the adjacent conductor layers. The extension direction of each conductor layer and the extension direction of at least one conductor layer intersect each other when viewed from the Z-axis direction and are inclined with respect to the direction perpendicular to the coil axis and along the insulator layer. With this configuration, the conductor layers are arranged so that the length of the current path in the coil is reduced while ensuring a relatively large width. The shorter the current path in the coil, the more the inductance can be reduced. Therefore, the conductor layers included in the coil of the electronic component are configured to reduce inductance. This allows the electronic component to be made compact while maintaining desired characteristics.

[0008] In one aspect, the plurality of first conductor layers may include a pair of first conductor layers, and the pair of first conductor layers may be connected to each other via the second conductor layer, which allows for a simpler configuration and reduces the length of the current path in the coil.

[0009] In the above-described one aspect, the pair of first conductor layers may be conductor layers among the plurality of conductor layers that are adjacent to each other in a direction along the coil axis, which allows for a simpler configuration and reduces the length of the current path in the coil.

[0010] In one of the above embodiments, the first conductor layer and the second conductor layer connected to each other via the connecting conductor may be arranged line-symmetrically when viewed from the stacking direction. In this case, the current is dispersed and easily flows, and current loss can be reduced. If the current flows dispersedly, the current density decreases and the Q value of the coil also improves.

[0011] In one of the above embodiments, each conductor layer may include a pair of end portions located opposite each other. The multiple connection conductors may include a first connection conductor and a second connection conductor. At least one of the pair of end portions may be coupled to the first connection conductor and the second connection conductor. In this case, the current flows dispersedly between the first connection conductor and the second connection conductor, which can further reduce current loss. In this case, the Q value of the coil can also be further improved.

[0012] In one of the above embodiments, among the multiple first conductor layers and at least one second conductor layer, corresponding first conductor layers and second conductor layers may be connected via a first connecting conductor and a second connecting conductor. A first connecting portion where the first connecting conductor and an end portion are connected to each other and a second connecting portion where the second connecting conductor and an end portion are connected to each other may be arranged in a direction oblique to the extending direction of the first and second conductor layers connected to the first and second connecting conductors. In this case, the current flows more evenly and distributedly between the first connecting conductor and the second connecting conductor, further reducing current loss. In this case, the Q value of the coil may also be further improved.

[0013] In one of the above embodiments, the angle between the arrangement direction of the first and second connecting portions in the first conductor layer and the extension direction of the first conductor layer may be equal to the angle between the arrangement direction of the first and second connecting portions in the second conductor layer and the extension direction of the second conductor layer. In this case, the current flows more evenly and distributedly between the first connecting conductor and the second connecting conductor, further reducing current loss. In this case, the Q value of the coil may also be further improved. [Effects of the Invention]

[0014] An object of one aspect of the present invention is to provide an electronic component that can be made compact while also achieving desired characteristics. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a perspective view of an electronic component according to an embodiment of the present invention. [Figure 2]FIG. [Figure 3] FIG. 2 is a partial cross-sectional view of the electronic component. [Figure 4] FIG. 2 is a partial cross-sectional view of the electronic component. [Figure 5] FIG. 1 is a circuit diagram of an electronic component. [Figure 6] FIG. 2 is a plan view showing a state in which electronic components are mounted. [Figure 7] FIG. 10 is a plan view showing a state in which an electronic component is mounted in a modified example of the present embodiment. [Figure 8] FIG. 10 is a plan view showing a state in which an electronic component is mounted in another modified example of the embodiment. [Figure 9] 1A is a schematic plan view of a coil in an electronic component according to the present embodiment, and FIG. 1B is a schematic plan view of a coil in an electronic component according to a modified example of the present embodiment. [Figure 10] 1A is a schematic plan view of a coil in an electronic component according to the present embodiment, and FIG. 1B is a schematic plan view of a coil in an electronic component according to a modified example of the present embodiment. [Figure 11] 10(a) and 10(b) are schematic plan views of a coil in an electronic component according to a modified example of the present embodiment. [Figure 12] 10(a) and 10(b) are schematic plan views of a coil in an electronic component according to a modified example of the present embodiment. [Figure 13] 10(a) and 10(b) show a comparative example of a schematic plan view of a coil. [Figure 14] FIG. 1A is a schematic perspective view of a coil in a comparative example, and FIG. 1B is a schematic perspective view of a coil in an electronic component. [Figure 15] 1A is a schematic development view of a coil in a comparative example, and FIG. 1B is a schematic development view of a coil in an electronic component. [Figure 16] FIG. 10 is a diagram showing the difference in length between the coil in the comparative example and the coil of the electronic component. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same or equivalent elements are designated by the same reference numerals, and redundant description will be omitted.

[0017] First, an electronic component according to this embodiment will be described with reference to Fig. 1 to Fig. 6. Fig. 1 and Fig. 2 are perspective views of the electronic component according to this embodiment. Fig. 3 and Fig. 4 are partial cross-sectional views of the electronic component. Fig. 5 is a circuit diagram of the electronic component. Fig. 6 is a plan view of the electronic component in a mounted state.

[0018] The electronic component 1 is, for example, a multilayer filter. The electronic component 1 includes multiple LC resonant circuits. Each LC resonant circuit is composed of multiple inductors and multiple capacitors. The electronic component 1 includes, for example, an element body 2 and electric circuits 3, 4, 5, 7, 9, 11, 15, and 17. In this embodiment, the Z-axis direction corresponds to the height direction of the electronic component 1, and the X-axis direction and the Y-axis direction correspond to the short-side direction and long-side direction of the electronic component 1. For example, the height direction of the electronic component 1 is shorter than the short-side direction of the electronic component 1.

[0019] The element body 2 has, as its outer surfaces, a pair of main surfaces 2a, a pair of end surfaces 2b, and a pair of side surfaces 2c. The pair of main surfaces 2a face each other in the Z-axis direction. The pair of end surfaces 2b face each other in the Y-axis direction. The pair of side surfaces 2c face each other in the X-axis direction. The pair of main surfaces 2a, the pair of end surfaces 2b, and the pair of side surfaces 2c are, for example, flat surfaces. The pair of main surfaces 2a extend, for example, along the X-axis direction and the Y-axis direction. The pair of end surfaces 2b extend, for example, along the X-axis direction and the Z-axis direction. The pair of side surfaces 2c extend, for example, along the Y-axis direction and the Z-axis direction. One of the pair of main surfaces 2a is defined as a mounting surface that faces another electronic device when mounted in, for example, another electronic device. The other electronic device includes, for example, a circuit board or an electronic component.

[0020] The element body 2 has, for example, a rectangular parallelepiped shape. The rectangular parallelepiped shape includes a rectangular parallelepiped shape with chamfered corners and ridges, and a rectangular parallelepiped shape with rounded corners and ridges.

[0021] As shown in FIGS. 3 and 4, the element body 2 includes multiple insulator layers 10. The multiple insulator layers 10 are stacked in the Z-axis direction. In the electronic component 1, the Z-axis direction corresponds to the stacking direction of the multiple insulator layers 10. Hereinafter, the stacking direction of the multiple insulator layers 10 will be simply referred to as the "stacking direction." The insulator layers 10 are integrated to such an extent that they are not visible. Each insulator layer 10 is made of, for example, a sintered ceramic green sheet containing a dielectric material. The dielectric material includes, for example, at least one selected from a BaTiO3-based material, a Ba(Ti,Zr)O3-based material, a (Ba,Ca)TiO3-based material, a glass material, or an alumina material.

[0022] As shown in FIG. 5, the electric circuits 3, 4, 5, 7, 9, 11, 15, and 17 are electrically connected to each other inside the element body 2 to form a single filter circuit. In this specification, "electrically connected" includes a state in which only AC components are transmitted without transmitting DC components. Each of the electric circuits 3, 4, 5, 7, 9, 11, 15, and 17 includes multiple terminal electrodes TE1, TE2, TE3, G1, G2, G3, and G4 exposed from the element body 2. The multiple terminal electrodes TE1, TE2, TE3, G1, G2, and G3 are arranged on the main surface 2a, which is the mounting surface. The multiple terminal electrodes TE1, TE2, TE3, G1, G2, G3, and G4 are each electrically connected to other electronic devices.

[0023] The electronic component 1 is mounted on a substrate S, for example, as shown in FIG. 6. The substrate S has wiring W1, W2, W3, and W5. Each of the wirings W1, W2, W3, and W5 is connected to a corresponding one of the multiple terminal electrodes of the electronic component 1. The wiring W1 is connected to the terminal electrode TE1. The wiring W2 is connected to the terminal electrode TE2. The wiring W3 is connected to the terminal electrode TE3. The wiring W5 is connected to the terminal electrodes G1, G2, G3, and G4. The wiring W5 corresponds to ground.

[0024] Each of the electric circuits 3, 4, 7, 11, 15, and 17 includes an inductor. The electric circuit 3 includes a terminal electrode G1 and forms a capacitor with each of the electric circuits 4 and 5. The electric circuit 4 includes a terminal electrode TE1 and forms a capacitor with each of the electric circuits 3 and 5. The electric circuit 5 forms a capacitor with each of the electric circuits 3, 4, 7, and 17. The electric circuit 7 includes a terminal electrode G2 and forms a capacitor with each of the electric circuits 5 and 9. The electric circuit 9 includes a terminal electrode G3 and forms a capacitor with the electric circuit 7. The electric circuit 11 includes a terminal electrode G4 and forms a capacitor with the electric circuit 15. The electric circuit 15 includes a terminal electrode TE2 and forms a capacitor with the electric circuit 11. The electric circuit 17 includes a terminal electrode TE3 and forms a capacitor with the electric circuit 5. The electric circuits 15 and 17 are electrically and physically connected.

[0025] Each of the electric circuits 3, 4, 5, 7, 9, 11, 15, and 17 is composed of a plurality of conductors. The conductors constituting each of the electric circuits 3, 4, 5, 7, 9, 11, 15, and 17 include, for example, at least one selected from Ag and Pd. Each of the electric circuits 3, 4, 5, 7, 9, 11, 15, and 17 includes a plurality of terminal electrodes exposed from the element body 2. A plating layer is formed on the surface of each terminal electrode. The plating layer is formed, for example, by electroplating. The plating layer has a layer structure consisting of a Cu plating layer, a Ni plating layer, and a Sn plating layer, or a layer structure consisting of a Ni plating layer and a Sn plating layer.

[0026] Each of the electric circuits 3, 4, 5, 7, 9, 11, 15, and 17 is disposed inside the element body 2, except for the multiple terminal electrodes TE1, TE2, TE3, G1, G2, G3, and G4. In the example shown in this embodiment, the length of the element body 2 in the X-axis direction is 2000 μm. The length of the element body 2 in the Y-axis direction is 2500 μm. The length of the element body 2 in the Z-axis direction is 750 μm. Each of the electric circuits 3, 4, 5, 7, 9, 11, 15, and 17 is at least 100 μm away from the outer surface of the element body 2 other than the mounting surface.

[0027] Next, a more detailed description will be given of the electric circuits 3, 4, 7, and 15. The electric circuits 3, 4, 7, and 15 include coils 21, 23, 25, 27, and 29, which correspond to the inductors described above.

[0028] The electric circuit 3 includes a coil 21. The coil 21 is disposed inside the element body 2. The coil 21 forms a coil axis AX1. The coil axis AX1 extends along a direction perpendicular to the stacking direction. In this specification, "perpendicular" includes a configuration that is misaligned within the range of manufacturing tolerances. In this embodiment, the coil axis AX1 extends along the X-axis direction that is perpendicular to the Z-axis direction. If the Z-axis direction corresponds to the first direction, the X-axis direction corresponds to the second direction.

[0029] When viewed from the X-axis direction, the coil 21 defines a region R1 in which the coil axis AX1 is located. The region R1 is surrounded by the coil 21. The region R1 corresponds to a cross section of the coil 21 on the YZ-axis plane.

[0030] In this embodiment, the coil 21 is a single-turn coil. The coil 21 includes, for example, at least one conductor layer 31, a plurality of connecting conductors 32, and an electrode 33. As shown in Figures 1 to 3 and 6, the coil 21 includes, for example, one conductor layer 31, two connecting conductors 32, and one electrode 33.

[0031] The conductor layer 31 extends along the insulator layers 10. The conductor layer 31 is sandwiched between a pair of insulator layers 10. The conductor layer 31 has, for example, a linear shape. The conductor layer 31 includes a pair of end portions 31a and 31b located opposite each other.

[0032] The conductor layer 31 includes, for example, an L-shaped portion 39. The L-shaped portion 39 has an L shape when viewed from the Z-axis direction. The conductor layer 31 includes a pair of extending portions 39a, 39b. The pair of extending portions 39a, 39b extend in directions that intersect with each other when viewed from the Z-axis direction. The pair of extending portions 39a, 39b are connected to each other. The pair of extending portions 39a, 39b constitute the L-shaped portion 39.

[0033] Each of the plurality of connection conductors 32 is coupled to the conductor layer 31. Each connection conductor 32 extends in the Z-axis direction. Each connection conductor 43 is formed by a via that penetrates the insulator layer 10. The plurality of connection conductors 32 includes a connection conductor 32 coupled to the end 31a and a connection conductor 32 coupled to the end 31b.

[0034] The electrode 33 is electrically connected to the conductor layer 31 and the plurality of connecting conductors 32. As shown in Fig. 3, the electrode 33 is disposed on the main surface 2a of the element body 2. The electrode 33 corresponds to a terminal electrode G1.

[0035] Next, the electric circuit 4 will be described in detail. The electric circuit 4 includes a coil 23. The coil 23 is disposed inside the element body 2. The coil 23 forms a coil axis AX3. The coil axis AX3 is aligned with the stacking direction. In this embodiment, the coil axis AX3 is aligned with the Z-axis direction. If the coil 21 corresponds to the first coil, the coil 23 corresponds to the second coil.

[0036] Coil 23 is separated from coil 21. In this specification, when "separate" is used in relation to an electric circuit, "separate" refers to a state in which there is no physical connection by a conductor and no DC component is transmitted. Coil 23 is electrically connected to coil 21. Coil 23 is connected to coil 21 by AC coupling.

[0037] In this embodiment, the coil 23 is a single-turn coil. The coil 23 includes, for example, at least one conductor layer 34, a plurality of connecting conductors 35, and an electrode 37. For example, as shown in Figures 1 to 4 and 6, the coil 23 includes one conductor layer 34, two connecting conductors 35, and one electrode 37.

[0038] The conductor layer 34 extends along the insulator layers 10. The conductor layer 34 is sandwiched between a pair of insulator layers 10. The conductor layer 34 has, for example, a linear shape. The conductor layer 34 extends along the insulator layers 10 in the circumferential direction of the coil axis AX3 of the coil 23. The conductor layer 34 includes a pair of end portions 34a, 34b located opposite each other.

[0039] The conductor layer 34 includes an extending portion 36a extending along the end face 2b of the element body 2, and an extending portion 36b extending along the side face 2c of the element body 2. The extending portion 36a is closer to the end face 2b than other portions of the conductor layer 34. The extending portion 36b is closer to the side face 2c than other portions of the conductor layer 34. The extending portion 36a extends in the X-axis direction, and the extending portion 36b extends in the Y-axis direction.

[0040] The conductor layer 34 includes at least one curved portion 38. The curved portion 38 is curved so as to be spaced away from the connecting conductor 32 of the coil 21. In other words, the conductor layer 34 is curved so as to be spaced away from the multiple connecting conductors 32. In the example shown in this embodiment, the shortest distance between the conductor layer 34 and the connecting conductor 32 is, for example, 100 μm. The conductor layer 34 includes, for example, two curved portions 38a and 38b. The curved portion 38a extends in the circumferential direction of the connecting conductor 32 connected to the end portion 31a when viewed from the Z-axis direction. The curved portion 38b extends in the circumferential direction of the connecting conductor 32 connected to the end portion 31b when viewed from the Z-axis direction. The curved portion 38b connects the extending portion 36a and the extending portion 36b.

[0041] Each of the plurality of connection conductors 35 is coupled to the conductor layer 34. Each connection conductor 35 extends in the Z-axis direction. Each connection conductor 35 is formed by a via that penetrates the insulator layer 10. The plurality of connection conductors 35 includes a connection conductor 35 coupled to the end portion 34a and a connection conductor 35 coupled to the end portion 34b.

[0042] The electrode 37 is electrically connected to the conductor layer 34 and the plurality of connecting conductors 35. As shown in Fig. 3, the electrode 37 is disposed on the main surface 2a of the element body 2. The electrode 37 corresponds to the terminal electrode TE1.

[0043] When viewed from the X-axis direction, the conductor layer 34 of the coil 23 is located in a region R1 surrounded by the coil 21. When the width T1 of the region R1 in the Z-axis direction is 100, the conductor layer 34 of the coil 23 is located in a range T2 of ±30 in the Z-axis direction from the coil axis AX3 of the coil 23.

[0044] As shown in FIG. 6, the conductor layer 34 of the coil 23 overlaps the conductor layer 31 of the coil 21 when viewed from the Z-axis direction. In this specification, "overlapping" refers to a state in which at least a portion is located in the same region. When viewed from the Z-axis direction, the conductor layer 34 of the coil 23 overlaps with at least the extension portion 39a of the conductor layer 31. For example, when viewed from the Z-axis direction, at least the entire extension portion 36b of the conductor layer 34 is located within the region where the extension portion 39a of the conductor layer 31 is located.

[0045] The edge of the extending portion 36b of the conductor layer 34 that is closest to the side surface 2c coincides with the edge of the extending portion 39a of the conductor layer 31 that is closest to the side surface 2c when viewed from the Z-axis direction. In this specification, "coinciding" includes a configuration that is misaligned within the range of manufacturing tolerances.

[0046] When viewed from the Z-axis direction, the conductor layer 34 of the coil 23 protrudes from the coil 21 to only one side in the extension direction of the coil axis AX1. For example, when viewed from the Z-axis direction, the conductor layer 34 of the coil 23 protrudes from the extending portion 39a of the coil 21 only in the +X-axis direction, and does not protrude from the extending portion 39a of the coil 21 in the -X-axis direction. In other words, when viewed from the Z-axis direction, the conductor layer 34 of the coil 23 is located in a region on the +X-axis direction side of the extending portion 39a of the coil 21, but is not located in a region on the -X-axis direction side of the extending portion 39a of the coil 21.

[0047] When viewed from the Z-axis direction, the conductor layer 34 of the coil 23 protrudes from the extending portion 39b of the coil 21 only in the -Y-axis direction, and does not protrude from the extending portion 39b of the coil 21 in the +Y-axis direction. In other words, when viewed from the Z-axis direction, the conductor layer 34 of the coil 23 is located in a region on the -Y-axis direction side of the extending portion 39b of the coil 21, but is not located in a region on the +Y-axis direction side of the extending portion 39b of the coil 21.

[0048] In the example shown in this embodiment, the shortest distance between the conductor layer 31 of the coil 21 and the end face 2b of the element body 2 and the shortest distance between the conductor layer 31 of the coil 21 and the side face 2c of the element body 2 are, for example, 100 μm. In the example shown in this embodiment, the shortest distance between the conductor layer 34 of the coil 23 and the end face 2b of the element body 2 and the shortest distance between the conductor layer 34 of the coil 23 and the side face 2c of the element body 2 are, for example, 100 μm. For example, in the X-axis direction, the shortest distance between the conductor layer 31 of the coil 21 and the side face 2c of the element body 2 and the shortest distance between the conductor layer 34 of the coil 23 and the side face 2c of the element body 2 are the same. In this case, the deviation within the range of manufacturing tolerance is, for example, ±25 μm.

[0049] As a modification of this embodiment, as shown in Fig. 7, the conductor layer 34 of the coil 23 may overlap both of the pair of extension portions 39a, 39b of the conductor layer 31 when viewed in the Z-axis direction. In the configuration shown in Fig. 7, the conductor layer 34 includes an extension portion 36c in addition to the extension portions 36a and 36b. The extension portion 36c extends from the extension portion 36b in the X-axis direction. The extension portion 36c is closer to the coil 29 than other portions of the conductor layer 34.

[0050] 7, when viewed from the Z-axis direction, the entire extension portion 36b of the conductor layer 34 is disposed within the region where the extension portion 39a of the conductor layer 31 is located. When viewed from the Z-axis direction, the entire extension portion 36b of the conductor layer 34 is disposed within the region where the extension portions 39a and 39b of the conductor layer 31 are located.

[0051] 7, the edge of extension 36c of conductor layer 34 that is closest to coil 29 coincides with the edge of extension 39a of conductor layer 31 that is closest to coil 29 when viewed in the Z-axis direction. For example, in the Y-axis direction, the shortest distance between conductor layer 31 of coil 21 and coil 29 coincides with the shortest distance between conductor layer 34 of coil 23 and coil 29. In this case, the deviation within the range of manufacturing tolerance is, for example, ±25 μm.

[0052] Next, the electric circuit 7 will be described in detail. The electric circuit 7 includes a coil 25. The coil 25 is disposed inside the element body 2. The coil 25 forms a coil axis AX5. The coil axis AX5 extends along a direction perpendicular to the Z-axis direction. In this embodiment, the coil axis AX5 extends along the X-axis direction. When viewed from the X-axis direction, the coil 25 defines a region R2 in which the coil axis AX5 is located. The region R2 is surrounded by the coil 25. The region R2 corresponds to the cross section of the coil 23 in the YZ-axis plane. For example, the coil 25 corresponds to the third coil.

[0053] Coil 25 is spaced apart from coils 21 and 23. Coil 25 is electrically connected to coils 21 and 23. Coil 25 is connected to coils 21 and 23 by AC coupling. Coil 21 and coil 25 are arranged so as to generate mutual induction between coils 21 and 25.

[0054] 4, the conductor layer 34 of the coil 23 is located in a region R2 surrounded by the coil 25 when viewed from the X-axis direction. When the width T3 of the region R2 in the Z-axis direction is 100, the conductor layer 34 of the coil 23 is located in a range T5 of ±30 in the Z-axis direction from the coil axis AX5 of the coil 25.

[0055] In this embodiment, the coil 25 is a two-turn coil. The coil 25 includes, for example, at least one conductor layer 41, at least one conductor layer 42, a plurality of connecting conductors 43, and an electrode 45. In the electronic component 1, the coil 25 includes a plurality of conductor layers 41. As shown in FIGS. 1 to 2, 4, and 6, the coil 25 includes, for example, two conductor layers 41, one conductor layer 42, eight connecting conductors 43, and one electrode 45. When the conductor layer 41 corresponds to the first conductor layer, the conductor layer 42 corresponds to the second conductor layer.

[0056] In this embodiment, the conductor layer 34 of the coil 23 is located between the coil 25 and the coil 21 when viewed from the Z-axis direction. In the configuration shown in Fig. 6, the conductor layer 34 of the coil 23 does not overlap with the coil 25 when viewed from the Z-axis direction. The conductor layer 34 of the coil 23 is separated from the region where the conductor layer 41 of the coil 25 is located when viewed from the Z-axis direction.

[0057] As a modification of this embodiment, as shown in FIG. 8 , the conductor layer 34 of the coil 23 may overlap the conductor layer 41 of the coil 25 when viewed from the Z-axis direction. In the configuration shown in FIG. 8 , the conductor layer 34 includes, in addition to the extension portions 36a and 36b, the extension portion 36d and the extension portion 36e. The extension portion 36d is located between the end portion 34a and the extension portion 36a in the conductor layer 34. The extension portion 36e is located between the end portion 34b and the extension portion 36b in the conductor layer 34. When viewed from the Z-axis direction, the extension portions 36d and 36e of the conductor layer 34 are located within the region where the conductor layer 41 is located. As a further modification of this modification, the conductor layer 34 may include only one of the extension portion 36d and the extension portion 36e. The conductor layer 34 may include at least one of the extension portion 36d and the extension portion 36e and the extension portion 36c described using FIG. 7 .

[0058] In this embodiment, the conductor layer 41 and the conductor layer 42 extend along the insulator layer 10. The conductor layer 41 and the conductor layer 42 are disposed at different positions in the Z-axis direction. The conductor layer 41 and the conductor layer 42 extend in a direction that intersects the coil axis AX5 and is along the insulator layer 10. For example, the direction along the insulator layer is a direction perpendicular to the Z-axis direction. The conductor layer 41 and the conductor layer 42 are each sandwiched between a pair of insulator layers 10. Each conductor layer 41 and each conductor layer 42 has, for example, a linear shape. Each conductor layer 41 includes a pair of end portions 41a, 41b located opposite each other. Each conductor layer 42 includes a pair of end portions 42a, 42b located opposite each other.

[0059] The multiple conductor layers 41 are arranged along the coil axis AX5 and the main surface 2a. The multiple conductor layers 41 are arranged in the X-axis direction. FIG. 9(a) is a schematic plan view of the coil 25. As shown in FIG. 9(a), the extension direction D1 of each conductor layer 41 is orthogonal to the coil axis AX5 and inclined with respect to the direction D4 along the insulator layer 10. In this specification, "inclined" does not include a state of being orthogonal. The extension direction D1 of each conductor layer 41 is also inclined with respect to the coil axis AX5. When viewed from the Z-axis direction, each conductor layer 41 extends in a direction inclined with respect to the X-axis direction and the Y-axis direction. For example, the multiple conductor layers 41 extend in the same direction as each other.

[0060] Each conductor layer 42 is connected to a corresponding one of the plurality of conductor layers 41 via a connecting conductor 43. As shown in FIG. 9( a), the extension direction D2 of the conductor layer 42 is orthogonal to the coil axis AX5 and inclined with respect to the direction D4 along the insulator layer 10. The extension direction D2 of each conductor layer 42 is also inclined with respect to the coil axis AX5. When viewed from the Z-axis direction, the conductor layer 42 extends in a direction inclined with respect to the X-axis direction and the Y-axis direction. When viewed from the Z-axis direction, the extension direction D1 of each conductor layer 41 and the extension direction D2 of the conductor layer 42 intersect with each other.

[0061] The multiple connection conductors 43 are spaced apart from one another. Each of the multiple connection conductors 43 is coupled to at least one of the conductor layer 41 and the conductor layer 42. At least one connection conductor 43 connects the corresponding conductor layer 41 and conductor layer 42. Each connection conductor 43 extends in the Z-axis direction. Each connection conductor 43 is formed by a via that penetrates the insulator layer 10.

[0062] Each of the plurality of connecting conductors 43 is coupled to an end portion 41a, 41b, 42a, 42b of a corresponding one of the plurality of conductor layers 41, 42. For example, each of the pair of end portions 41a, 41b is coupled to a plurality of connecting conductors 43. For example, each of the pair of end portions 42a, 42b is coupled to a plurality of connecting conductors 43.

[0063] The multiple connecting conductors 43 include connecting conductors 51, 52, 53, and 54. The connecting conductors 51 and 52 are connected to the same end 41a. Of the multiple conductor layers 41 and at least one conductor layer 42, corresponding conductor layers 41 and 42 are connected to each other via the connecting conductors 51 and 52. For example, each of the connecting conductors 51 and 52 connects the end 41a of the conductor layer 41 to the end 42a or 42b of the conductor layer 42. The connecting conductors 53 and 54 are connected to the same end 41b. The connecting conductors 53 and 54 correspond to, for example, the ends of the coil 25. For example, the connecting conductors 51, 52, 53, and 54 correspond to the first connecting conductor, the second connecting conductor, the third connecting conductor, and the fourth connecting conductor, respectively.

[0064] The connecting conductors 51 and 52 and the connecting conductors 53 and 54 are, for example, connected to the same conductor layer 41. The connecting conductors 53 and 54 are connected to the end portions 41b of the conductor layers 41 that are connected to the connecting conductors 51 and 52. For example, in the Z-axis direction, the length of each of the connecting conductors 53 and 54 is greater than the length of each of the connecting conductors 51 and 52.

[0065] The plurality of conductor layers 41 includes a conductor layer 42 and a pair of conductor layers 61, 62 electrically connected to each other via a plurality of connecting conductors 51, 52. The pair of conductor layers 61, 62 are conductor layers 41 that are adjacent to each other in direction D3 along the coil axis AX5, among the plurality of conductor layers 41. The pair of conductor layers 61, 62 extend in directions parallel to each other when viewed from the Z-axis direction.

[0066] In the X-axis direction, the shortest distance between the connection conductor 51 coupled to the conductor layer 62 and the connection conductor 43 coupled to the conductor layer 61 is shorter than the shortest distance between the connection conductor 52 coupled to the conductor layer 62 and the connection conductor 43 coupled to the conductor layer 61. The shortest distance between the connection conductor 51 and the connection conductor 53 in the X-axis direction is shorter than the shortest distance between the connection conductor 52 and the connection conductor 53 in the X-axis direction. The shortest distance between the connection conductor 53 coupled to the conductor layer 62 and the connection conductor 43 coupled to the conductor layer 61 is shorter than the shortest distance between the connection conductor 54 coupled to the conductor layer 62 and the connection conductor 43 coupled to the conductor layer 61. The shortest distance between the connection conductor 53 and the connection conductor 51 in the X-axis direction is shorter than the shortest distance between the connection conductor 54 and the connection conductor 51 in the X-axis direction.

[0067] Among the multiple conductor layers 41, the width L1 of each conductor layer 41 adjacent to each other in the direction D3 along the coil axis AX5 is greater than the shortest distance L2 between the adjacent conductor layers 41. The width L1 of the conductor layer 41 is orthogonal to the extension direction D1 and corresponds to the length of the conductor layer 41 in the direction along the insulator layer 10. For example, the width L1 of each of the adjacent conductor layers 61, 62 in the direction orthogonal to the extension direction D1 is greater than the shortest distance L2 between the conductor layer 61 and the conductor layer 62 in the direction D3 along the coil axis AX5. The shortest distance L2 is, for example, a distance at which the stray capacitance generated between the adjacent conductor layers 61 and 62 is an allowable value taking into account the overall configuration of the electronic component 1. The shortest distance L2 may be, for example, a distance at which connection between the conductor layer 61 and the conductor layer 62 can be suppressed during the manufacturing process, taking into account manufacturing errors. The shortest distance L2 is, for example, 20 μm or more. In the example shown in this embodiment, the shortest distance L2 is 60 μm.

[0068] The connecting conductor 51 and the end 41a of the conductor layer 41 are connected to each other at the connecting portion C11. The connecting conductor 52 and the end 41a of the conductor layer 41 are connected to each other at the connecting portion C12. For example, in the X-axis direction along the coil axis AX5, the connecting portion C11 is closer to the end 42b of the conductor layer 42 than the connecting portion C12 adjacent to the connecting portion C11. When viewed from the Z-axis direction, the shortest distance between the connecting portion C11 and the conductor layer 62 in the conductor layer 61 is shorter than the shortest distance between the connecting portion C12 and the conductor layer 62 in the conductor layer 61. The shortest distance between the connecting portion C11 and the connecting portion C13 in the X-axis direction is shorter than the shortest distance between the connecting portion C12 and the connecting portion C13 in the X-axis direction.

[0069] For example, in the conductor layer 41, the coupling portions C11 and C12 are arranged in a direction D3 that is inclined with respect to the extending direction D1 of the conductor layer 41. In other words, the arrangement direction of the coupling portions C11 and C12 and the extending direction D1 of the conductor layer 41 are inclined with respect to each other. Furthermore, the arrangement direction of the coupling portions C11 and C12 and the extending direction D1 of the conductor layer 42 are inclined with respect to each other. For example, the coupling portions C11 and C12 are arranged in the X-axis direction.

[0070] The connecting conductor 53 and the end 41b of the conductor layer 41 are connected to each other at the connecting portion C13. The connecting conductor 54 and the end 41b of the conductor layer 41 are connected to each other at the connecting portion C14. For example, in the X-axis direction along the coil axis AX5, the connecting portion C23 is closer to the end 42b of the conductor layer 42 than the connecting portion C24 adjacent to the connecting portion C23. When viewed from the Z-axis direction, the shortest distance between the connecting portion C13 and the conductor layer 61 in the conductor layer 62 is shorter than the shortest distance between the connecting portion C14 and the conductor layer 61 in the conductor layer 62. The shortest distance between the connecting portion C13 and the connecting portion C11 in the X-axis direction is shorter than the shortest distance between the connecting portion C14 and the connecting portion C11 in the X-axis direction.

[0071] For example, in the conductor layer 41, the coupling portions C13 and C14 are arranged in a direction D3 that is inclined with respect to the extension direction D1 of the conductor layer 41. In other words, the arrangement direction of the coupling portions C13 and C14 and the extension direction D1 of the conductor layer 41 are inclined with respect to each other. For example, the coupling portions C13 and C14 are arranged in the X-axis direction. The arrangement direction of the coupling portions C11 and C12 and the arrangement direction of the coupling portions C13 and C14 are, for example, parallel to each other. In this specification, "parallel" includes a configuration that is misaligned within the range of manufacturing tolerances.

[0072] In the conductor layer 41, the extending direction D1 of the conductor layer 41 and the arranging direction of the coupling portions C11 and C12 intersect at an angle θ1. The extending direction D2 of the conductor layer 42 coupled to the connecting conductors 51 and 52 intersects at an angle θ2 with the arranging direction of the coupling portions C11 and C12.

[0073] As shown in FIG. 9(a), the formed angles θ1 and θ2 are different from each other. In a modification of this embodiment, the formed angles θ1 and θ2 may be equal to each other, as shown in FIG. 9(b). In this specification, "equal" includes a configuration that is deviated within the range of manufacturing tolerances. FIG. 9(b) is a schematic plan view of coil 25 in a modification of this embodiment.

[0074] As a modification of this embodiment, the conductor layer 41 and the conductor layer 42, which are connected to each other via the connecting conductors 51 and 52, may be arranged symmetrically with respect to the Z axis as viewed in the Z-axis direction, as shown in Fig. 9(b). The coil 25 may be a coil with three or more turns. In this modification, the coil 25 is a three-turn coil.

[0075] The electrode 45 is electrically connected to the plurality of conductor layers 41, 42 and the plurality of connecting conductors 35. As shown in Fig. 4, the electrode 45 is disposed on the main surface 2a of the element body 2. The electrode 45 corresponds to the terminal electrode G2.

[0076] Next, the electric circuit 15 will be described in detail. The electric circuit 15 includes a coil 27 and a coil 29. The coils 27 and 29 are disposed inside the element body 2. When viewed from the Z-axis direction, the coil 27 is adjacent to the coils 25 and 29 among the coils 21, 25, and 29. When viewed from the Z-axis direction, the coil 29 is adjacent to the coils 21 and 27 among the coils 21, 25, and 27.

[0077] Coil 27 and coil 29 form coil axes AX7 and AX9 that are aligned in a direction perpendicular to the stacking direction. When viewed from the Z-axis direction, coil axis AX5 of coil 25 and coil axis AX7 of coil 27 intersect with each other. When viewed from the Z-axis direction, coil axis AX7 of coil 27 and coil axis AX9 of coil 29 intersect with each other. For example, coil axis AX7 of coil 27 is aligned with the Y-axis direction. Coil axis AX9 of coil 29 is aligned with the X-axis direction.

[0078] The coil 27 is spaced apart from the coils 21, 23, and 25. The coil 27 is electrically connected to the coils 21, 23, and 25. The coil 27 is connected to the coils 21, 23, and 25 by AC coupling. In this embodiment, the coil 27 is a three-turn coil. The coil 27 includes, for example, at least one conductor layer 71, at least one conductor layer 72, multiple connecting conductors 73, and an electrode. In the electronic component 1, the coil 27 includes multiple conductor layers 71 and multiple conductor layers 72. For example, as shown in FIGS. 1, 2, and 6, the coil 27 includes three conductor layers 71, two conductor layers 72, twelve connecting conductors 73, and one electrode. The electrode is electrically connected to the multiple conductor layers 71 and 72 and the multiple connecting conductors 73 and is disposed on the main surface 2a of the element body 2. This electrode corresponds to the terminal electrode G3.

[0079] Coil 29 is spaced apart from coils 21, 23, and 25. Coil 29 is electrically connected to coils 21, 23, and 25. Coil 29 is connected to coils 21, 23, and 25 by AC coupling. In this embodiment, coil 29 is a single-turn coil. Coil 29 includes, for example, at least one conductor layer 101, a plurality of connecting conductors 103, and an electrode. The electrode is electrically connected to conductor layer 101 and the plurality of connecting conductors 103, and is disposed on main surface 2a of element body 2. This electrode corresponds to terminal electrode TE3.

[0080] In the coil 27, the conductor layer 71 and the conductor layer 72 extend along the insulator layer 10. The conductor layer 71 and the conductor layer 72 are disposed at different positions in the Z-axis direction. The conductor layer 71 and the conductor layer 72 extend in a direction that intersects the coil axis AX7 and follows the insulator layer 10. The conductor layer 71 and the conductor layer 72 are each sandwiched between a pair of insulator layers 10. Each of the conductor layers 71 and 72 has, for example, a linear shape. Each of the conductor layers 71 includes a pair of end portions 71a, 71b located opposite each other. Each of the conductor layers 72 includes a pair of end portions 72a, 72b located opposite each other.

[0081] The multiple conductor layers 71 are arranged along the coil axis AX7 and the main surface 2a. The multiple conductor layers 71 are arranged in the Y-axis direction. Fig. 10(a) is a schematic plan view of the coil 27. As shown in Fig. 10(a), when viewed from the Z-axis direction, the extension direction D11 of each conductor layer 71 is along a direction perpendicular to the coil axis AX7. In other words, each conductor layer 71 is along the X-axis direction.

[0082] The multiple conductor layers 72 are arranged along the coil axis AX7 and the main surface 2a. The multiple conductor layers 72 are arranged in the Y-axis direction. As shown in FIG. 10(a), each conductor layer 72 extends in a direction inclined with respect to the extending direction D11 of the conductor layer 71 and along the insulator layer 10. When viewed from the Z-axis direction, the extending direction D11 of each conductor layer 71 and the extending direction D12 of each conductor layer 72 intersect with each other. When viewed from the Z-axis direction, each conductor layer 72 extends in a direction inclined with respect to the X-axis and Y-axis directions. The extending direction D12 of each conductor layer 72 is orthogonal to the coil axis AX7 and inclined with respect to the direction D11 along the insulator layer 10. For example, the multiple conductor layers 72 extend in the same direction as each other.

[0083] The multiple connection conductors 73 are spaced apart from one another. Each of the multiple connection conductors 73 is coupled to at least one of the conductor layer 71 and the conductor layer 72. At least one connection conductor 73 connects the corresponding conductor layer 71 and conductor layer 72. Each connection conductor 73 extends in the Z-axis direction. Each connection conductor 73 is formed by a via that penetrates the insulator layer 10.

[0084] Each of the plurality of connecting conductors 73 is coupled to an end portion 71a, 71b, 72a, 72b of a corresponding one of the plurality of conductor layers 71, 72. For example, each of the pair of end portions 71a, 71b is coupled to a plurality of connecting conductors 73. For example, each of the pair of end portions 72a, 72b is coupled to a plurality of connecting conductors 73.

[0085] The multiple connection conductors 73 include connection conductors 81, 82, 83, 84, 85, and 86. The connection conductors 81 and 82 are connected to the same end 71a. Of the multiple conductor layers 71 and the multiple conductor layers 72, corresponding conductor layers 71 and 72 are connected to each other via connection conductors 81 and 82. For example, each of connection conductors 81 and 82 connects end 71a of conductor layer 71 to end 72a of conductor layer 72. For example, in the Z-axis direction, the length of each of connection conductors 83 and 84 is greater than the length of each of connection conductors 81, 82, 85, and 86. For example, in the Z-axis direction, the length of each of connection conductors 81 and 82 is equal to the length of each of connection conductors 85 and 86.

[0086] The connecting conductors 83 and 84 are connected to the conductor layer 71 which is connected to the connecting conductors 81 and 82. The connecting conductors 83 and 84 are connected to the same end portion 71b. The connecting conductors 83 and 84 correspond to the ends of the coil 27, for example.

[0087] The connection conductors 85 and 86 are connected to the same ends 71a and 71b. Of the plurality of conductor layers 71 and the plurality of conductor layers 72, the corresponding conductor layers 71 and 72 are connected to each other via the connection conductors 85 and 86. For example, each of the connection conductors 85 and 85 connects the end 71a or the end 71b of the conductor layer 71 to the end 72b of the conductor layer 72.

[0088] The connecting conductors 81 and 82 and the connecting conductors 83 and 84 are, for example, connected to the same conductor layer 71. The connecting conductors 83 and 84 are connected to the end 71b of the conductor layer 71 that is connected to the connecting conductors 81 and 82. The connecting conductors 81 and 82 and the connecting conductors 85 and 86 are, for example, connected to the same conductor layer 72. The connecting conductors 85 and 86 are connected to the end 72b of the conductor layer 72 that is connected to the connecting conductors 81 and 82.

[0089] The multiple conductor layers 71 include at least one conductor layer 72, connecting conductors 81, 82, and a pair of conductor layers 91, 92 electrically connected to each other via connecting conductors 85, 86. The pair of conductor layers 91, 92 are the conductor layers 71 that are farthest from each other among the multiple conductor layers 71 in the direction D13 along the coil axis AX7. The pair of conductor layers 91, 92 are the conductor layers 71 located at both ends of the multiple conductor layers 71 in the Y-axis direction. The conductor layer 91 is the conductor layer 71 that is closest to the end face 2b among the multiple conductor layers 71. The conductor layer 91 is the conductor layer 71 that is farthest from the electric circuit 7 among the multiple conductor layers 71. The conductor layer 92 is the conductor layer 71 that is farthest from the end face 2b among the multiple conductor layers 71. The conductor layer 92 is the conductor layer 71 that is closest to the electric circuit 7 among the multiple conductor layers 71. Another conductor layer 71 is located between the conductor layer 91 and the conductor layer 92 in the Y-axis direction. The pair of conductor layers 91 and 92 extend in directions parallel to each other when viewed from the Z-axis direction.

[0090] In the Y-axis direction, the shortest distance between the connection conductor 81 coupled to the conductor layer 91 and the connection conductor 73 coupled to the conductor layer 92 is shorter than the shortest distance between the connection conductor 82 coupled to the conductor layer 91 and the connection conductor 73 coupled to the conductor layer 92. The shortest distance between the connection conductors 81 and 83 in the Y-axis direction is shorter than the shortest distance between the connection conductors 82 and 83 in the Y-axis direction. In the Y-axis direction, the shortest distance between the connection conductors 83 coupled to the conductor layer 91 and the connection conductor 73 coupled to the conductor layer 92 is shorter than the shortest distance between the connection conductors 84 coupled to the conductor layer 91 and the connection conductor 73 coupled to the conductor layer 92. The shortest distance between the connection conductors 83 and 81 in the Y-axis direction is shorter than the shortest distance between the connection conductors 84 and 81 in the Y-axis direction.

[0091] The connecting conductors 81 and 82 are connected to, for example, the end portions 71a of the pair of conductor layers 91 and 92, respectively. The connecting conductors 83 and 84 are connected to, for example, the end portions 71b of the pair of conductor layers 91 and 92, respectively. The coupling portions C21 and C22 in the conductor layer 91 are arranged in a direction D14 that is the same as the arrangement direction of the coupling portions C21 and C22 in the conductor layer 92. The arrangement direction of the coupling portions C21 and C22 in the conductor layer 91 and the arrangement direction of the coupling portions C21 and C22 in the conductor layer 92 are, for example, parallel to each other. The arrangement direction of the coupling portions C21 and C22 in the conductor layer 91 and the arrangement direction of the coupling portions C23 and C24 in the conductor layer 91 intersect with each other.

[0092] The coupling portions C23 and C24 in the conductor layer 91 are arranged in a direction D15 that is the same as the arrangement direction of the coupling portions C23 and C24 in the conductor layer 92. The arrangement direction of the coupling portions C23 and C24 in the conductor layer 91 and the arrangement direction of the coupling portions C23 and C24 in the conductor layer 92 are, for example, parallel to each other. In this case, when viewed from the Z-axis direction, a rugby ball-shaped region is defined by lines connecting the coupling portions C21, C22, C23, C24, C25, and C26 in the multiple conductor layers 71.

[0093] The connecting conductor 81 and the end 71a of the conductor layer 71 are connected to each other at the connecting portion C21. The connecting conductor 82 and the end 71a of the conductor layer 71 are connected to each other at the connecting portion C22. For example, in the Y-axis direction along the coil axis AX7, the connecting portion C21 is closer to the end 72b of the conductor layer 72 than the connecting portion C22 adjacent to the connecting portion C21. When viewed from the Z-axis direction, the shortest distance between the connecting portion C21 and the conductor layer 92 in the conductor layer 91 is shorter than the shortest distance between the connecting portion C22 and the conductor layer 92 in the conductor layer 91. The shortest distance between the connecting portion C21 and the connecting portion C25 in the Y-axis direction is shorter than the shortest distance between the connecting portion C22 and the connecting portion C25 in the Y-axis direction.

[0094] For example, in the conductor layer 71, the coupling portions C21 and C22 are arranged in a direction D14 that is inclined with respect to the extending direction D11 of the conductor layer 71. In other words, the arrangement direction of the coupling portions C21 and C22 and the extending direction D11 of the conductor layer 71 are inclined with respect to each other. The angle θ7 formed between the arrangement direction of the coupling portions C21 and C22 and the extending direction D11 of the conductor layer 71 coupled to the connecting conductors 81 and 82 is, for example, 80 degrees or less.

[0095] Furthermore, the arrangement direction of the coupling portions C21 and C22 intersects with the extension direction D12 of the conductor layer 72. For example, the arrangement direction of the coupling portions C21 and C22 intersects with the extension direction D12 of the conductor layer 72 at right angles to each other. In the conductor layer 71, the coupling portion C22 is closer to the end 71b of the conductor layer 71 than the coupling portion C21 adjacent to the coupling portion C22. In other words, in the extension direction D11 of the conductor layer 71, the coupling portion C21 is farther from the end 71b than the coupling portion C22.

[0096] The connecting conductor 83 and the end 71b of the conductor layer 71 are connected to each other at the connecting portion C23. The connecting conductor 84 and the end 71b of the conductor layer 71 are connected to each other at the connecting portion C24. For example, in the Y-axis direction along the coil axis AX7, the connecting portion C23 is closer to the end 72b of the conductor layer 72 than the connecting portion C24 adjacent to the connecting portion C23. When viewed from the Z-axis direction, the shortest distance between the connecting portion C23 and the conductor layer 92 in the conductor layer 91 is shorter than the shortest distance between the connecting portion C24 and the conductor layer 92 in the conductor layer 91. The shortest distance between the connecting portion C23 and the connecting portion C25 in the Y-axis direction is shorter than the shortest distance between the connecting portion C24 and the connecting portion C25 in the Y-axis direction.

[0097] For example, in the conductor layer 71, the coupling portions C23 and C24 are arranged in a direction D15 that is inclined with respect to the extending direction D11 of the conductor layer 71. In other words, the arrangement direction of the coupling portions C23 and C24 and the extending direction D11 of the conductor layer 71 are inclined with respect to each other. The angle θ8 formed between the arrangement direction of the coupling portions C23 and C24 and the extending direction D11 of the conductor layer 71 coupled to the connecting conductors 81 and 82 is, for example, 80 degrees or less.

[0098] The arrangement direction of the coupling portion C21 and the coupling portion C22 and the arrangement direction of the coupling portion C23 and the coupling portion C24 intersect with each other. The position where the arrangement direction of the coupling portion C21 and the coupling portion C22 and the arrangement direction of the coupling portion C23 and the coupling portion C24 intersect with each other is located between the coupling portion C21 and the coupling portion C23 in the conductor layer 71 when viewed from the direction along the coil axis AX7. The position where the arrangement direction of the coupling portion C21 and the coupling portion C22 and the arrangement direction of the coupling portion C23 and the coupling portion C24 intersect with each other in the conductor layer 92 is located on the opposite side from the conductor layer 91. In the conductor layer 71, the coupling portion C24 is closer to the end 71a of the conductor layer 71 than the coupling portion C23. In other words, in the extension direction D11 of the conductor layer 71, the coupling portion C24 is farther from the end 71a than the coupling portion C23 adjacent to the coupling portion C24.

[0099] The connecting conductor 85 and the end 71b of the conductor layer 71 are connected to each other at the connecting portion C25. The connecting conductor 86 and the end 71b of the conductor layer 71 are connected to each other at the connecting portion C26. When viewed from the Z-axis direction, the shortest distance between the connecting portion C25 in the conductor layer 91 and the conductor layer 92 is smaller than the shortest distance between the connecting portion C26 in the conductor layer 91 and the conductor layer 92. The shortest distance between the connecting portion C25 and the connecting portion C21 in the Y-axis direction is smaller than the shortest distance between the connecting portion C26 and the connecting portion C21 in the Y-axis direction. For example, in the conductor layer 72, the connecting portion C25 and the connecting portion C26 are arranged in a direction D13 that is inclined with respect to the extending direction D12 of the conductor layer 72. The connecting portion C25 and the connecting portion C26 are arranged, for example, in the Y-axis direction. In other words, the arrangement direction of the connecting portion C25 and the connecting portion C26 and the extending direction D12 of the conductor layer 72 are inclined with respect to each other. The arrangement direction of the coupling portion C25 and the coupling portion C26 is, for example, perpendicular to the extending direction D11 of the conductor layer 71. The arrangement direction of the coupling portion C25 and the coupling portion C26 intersects with the arrangement direction of the coupling portion C21 and the coupling portion C22. The arrangement direction of the coupling portion C25 and the coupling portion C26 intersects with the arrangement direction of the coupling portion C23 and the coupling portion C24.

[0100] As a modification of this embodiment, the arrangement direction of the coupling portions C21 and C22 in the conductor layer 91 and the arrangement direction of the coupling portions C21 and C22 in the conductor layer 92 may intersect with each other, as shown in Fig. 10(b). The arrangement direction of the coupling portions C23 and C24 in the conductor layer 91 and the arrangement direction of the coupling portions C21 and C22 in the conductor layer 92 may intersect with each other. For example, in the configuration shown in Fig. 10(b), the arrangement direction of the coupling portions C21 and C22 in the conductor layer 92 and the arrangement direction of the coupling portions C23 and C24 in the conductor layer 92 may be along the Y-axis direction.

[0101] As yet another modification of this embodiment, as shown in FIG. 11( a), the coil 27 may be a two-turn coil. In this case, the coil 27 does not include any conductor layer 71 other than the conductor layers 91 and 92. The coil 27 does not include any connecting conductors 85 and 86. The conductor layer 91 and the conductor layer 92 are adjacent to each other in the Y-axis direction. As yet another modification of this embodiment, as shown in FIG. 11( b), the coil 27 may be a three-turn or more coil. In this case, the coil 27 includes a plurality of conductor layers 71 arranged between the conductor layer 91 and the conductor layer 92 in the Y-axis direction.

[0102] 12(a) and 12(b), the coil 27 may be a single-turn coil. As shown in FIG. 12(b), in the conductor layer 71, the coupling portion C22 may be closer to the end 71b of the conductor layer 71 than the coupling portion C21, and the coupling portion C23 may be closer to the end 71a of the conductor layer 71 than the coupling portion C24. In other words, in the extension direction D11 of the conductor layer 71, the coupling portion C21 may be farther from the end 71b than the coupling portion C22, and the coupling portion C23 may be closer to the end 71a than the coupling portion C24.

[0103] The arrangement of the coupling portions C83 and C84 shown in FIG. 12(b) may be applied to the configurations shown in FIGS. 10(a), 10(b), 11(a), and 11(b) described above. In the configuration shown in FIG. 12(b), for example, in the conductor layer 71, the shortest distance between the coupling portions C21 and C23 is equal to the shortest distance between the coupling portions C22 and C24. In the configuration shown in FIG. 12(b), the coupling portions C21 and C22 are arranged in a direction that follows the arrangement direction of the coupling portions C23 and C24. The arrangement direction of the coupling portions C21 and C22 and the arrangement direction of the coupling portions C23 and C24 are, for example, parallel to each other.

[0104] 12(b) also includes a configuration in which, strictly speaking, the arrangement direction of the coupling portion C21 and the coupling portion C22 and the arrangement direction of the coupling portion C23 and the coupling portion C24 intersect with each other. In this configuration, the position at which the arrangement direction of the coupling portion C21 and the coupling portion C22 and the arrangement direction of the coupling portion C23 and the coupling portion C24 intersect with each other is located outside the region sandwiched between the coupling portion C21 and the coupling portion C23 in the conductor layer 71, as viewed in the direction along the coil axis AX7. In this configuration, the position at which the arrangement direction of the coupling portion C21 and the coupling portion C22 and the arrangement direction of the coupling portion C23 and the coupling portion C24 intersect with each other is farther from the coupling portion C23 than from the coupling portion C21 in the conductor layer 71, as viewed in the direction along the coil axis AX7.

[0105] Next, the effects of the electronic component 1 in this embodiment and the modified example will be described. In the electronic component 1, the coil 23 is located in the region R1 surrounded by the coil 21 when viewed from the X-axis direction. When viewed from the stacking direction, the coil 23 overlaps the coil 21 and protrudes from the coil 21 on only one side. In this case, the space required for arranging the coil 21 and the coil 23 is reduced, while the magnetic field generated in the coil 23 is less likely to affect the coil 21. This makes it possible to achieve both compactness of the electronic component 1 and the realization of desired characteristics.

[0106] The coil 21 includes a conductor layer 31 and a connecting conductor 32. The conductor layer 31 extends along the insulator layer 10. The connecting conductor 32 is connected to the conductor layer 31 and extends in the stacking direction. This makes it easy to configure the coil 21 with an improved Q value.

[0107] Coil 23 is curved so as to be spaced apart from connecting conductor 32. This ensures a distance between coil 21 and coil 23. As a result, the stray capacitance between coil 21 and coil 23 can be reduced. Furthermore, the connection between coil 21 and coil 23 can be suppressed during the manufacturing process. Therefore, the structure of electronic component 1 can also suppress production throughput.

[0108] Coil 23 includes a curved portion 38. Curved portion 38 extends in the circumferential direction of connecting conductor 32 when viewed from the stacking direction. Hereinafter, the "cross-sectional area of ​​a coil" refers to the area of ​​the region surrounded by the coil when viewed from the direction along the coil axis when the coil is cut along a plane perpendicular to the coil axis. For example, in coil 21, the area of ​​region R1 corresponds to the cross-sectional area of ​​coil 21. In this configuration, the cross-sectional area of ​​coil 23 can be secured to be relatively large. The inductance of coil 23 can be improved while also securing the distance between coils 21 and 23.

[0109] The conductor layer 31 includes a pair of extending portions 39a, 39b. The pair of extending portions 39a, 39b extend in directions that intersect with each other when viewed from the stacking direction and are connected to each other. In this case, the cross-sectional area of ​​the coil 21 can be ensured to be relatively large. The length of the conductor layer 31 of the coil 21 can be ensured to be large relative to the size of the space in which the coil 21 is arranged. In this configuration, the inductance of the coil 21 can be improved.

[0110] 7, the coil 23 overlaps both of the pair of extending portions 39a, 39b when viewed from the stacking direction. In this case, the cross-sectional area of ​​the coil 23 can be secured to be relatively large. The length of the conductor layer 34 of the coil 23 can be secured to be large relative to the size of the space in which the coil 23 is arranged. In this configuration, the inductance of the coil 23 can be further improved.

[0111] The conductor layer 34 of the coil 23 extends along the insulator layer 10 in the circumferential direction of the coil axis AX3 of the coil 23. When the width T1 of the region R1 in the stacking direction is 100, the conductor layer 34 of the coil 23 is located within a range T2 of ±30 in the stacking direction from the coil axis AX1 of the coil 21. In this case, it is possible to both suppress a decrease in impedance and reduce stray capacitance. If the coil 23 deviates from the range T2, the stray capacitance may increase. If the coil 23 is located closer to the mounting surface than the range T2, the coil 23 as a whole is located relatively close to the ground, which may reduce impedance.

[0112] Coil 21 and coil 23 are connected by AC coupling, so that the desired characteristics can be obtained in the entire electronic component 1.

[0113] Coil 25 is disposed inside element body 2 so as to be spaced apart from coil 21. Coil 25 forms a coil axis AX5 along the X-axis direction. Coil 23 is located in region R2 surrounded by coil 25 when viewed from the X-axis direction. In the modified example shown in FIG. 8, coil 23 overlaps coil 25 when viewed from the stacking direction. In this case, the magnetic field generated in coil 23 is less likely to affect coil 25. Furthermore, the cross-sectional area of ​​coil 23 can be secured to be relatively large. The length of conductor layer 34 of coil 23 can be secured to be even greater. Therefore, the inductance of coil 23 can be further improved. This makes it possible to achieve both compactness of electronic component 1 and the realization of desired characteristics.

[0114] Coil 21 and coil 25 are arranged so as to generate mutual induction between coil 21 and coil 25. In this configuration, coil 23 is arranged by utilizing the space between coil 21 and coil 25, which generates mutual induction. As a result, it is possible to achieve both compactness of electronic component 1 and the realization of desired characteristics.

[0115] The wider the conductor layer, the smaller the inductance. However, when conductor layers are arranged on an element body of the same size, the wider the conductor layer, the shorter the shortest distance between adjacent conductor layers, as shown in Figures 13(a) and 13(b). Figures 13(a) and 13(b) show a comparative example of a schematic plan view of a coil viewed from the stacking direction. In Figures 13(a) and 13(b), the stacking direction corresponds to the Z-axis direction.

[0116] In FIG. 13(a), a pair of conductor layers 111 are connected via a conductor layer 112. The pair of conductor layers 111 and 112 are located at different positions in the Z-axis direction. In FIG. 13(b), a pair of conductor layers 121 are connected via a conductor layer 122. The pair of conductor layers 121 and 122 are located at different positions in the Z-axis direction. The pair of conductor layers 111 and the pair of conductor layers 121 correspond to, for example, the conductor layer 41 in the electronic component 1. The conductor layer 112 and the conductor layer 122 correspond to, for example, the conductor layer 42 in the electronic component 1.

[0117] In the configuration shown in FIG. 13(a) and the configuration shown in FIG. 13(b), the length L10 of the region where the conductor layer is provided is equal in the Y-axis direction. The width L21 of the conductor layer 121 in FIG. 13(b) is greater than the width L11 of the conductor layer 111 in FIG. 13(a). The width L21 of the conductor layer 121 corresponds to the length of the conductor layer 121 in the Y-axis direction. The width L11 of the conductor layer 111 corresponds to the length of the conductor layer 111 in the Y-axis direction. In this case, the shortest distance L22 between the pair of conductor layers 121 is shorter than the shortest distance L12 between the pair of conductor layers 111. As such, the greater the width of the conductor layer, the shorter the shortest distance between adjacent conductor layers. If the shortest distance L22 between the pair of conductor layers 121 is too small, stray capacitance occurs between the pair of conductor layers 121.

[0118] In the electronic component 1, among the multiple conductor layers 41, 42, adjacent conductor layers 41, 42 in the direction along the coil axis AX5 have a width L1 in a direction perpendicular to the extension directions D1, D2 of the conductor layers 41, 42 that is greater than the shortest distance L2 between the adjacent conductor layers 41. The extension direction D1 of each conductor layer 41 and the extension direction D2 of at least one conductor layer 42 intersect with each other when viewed from the Z-axis direction and are inclined with respect to the direction D4 perpendicular to the coil axis AX5 and along the insulator layer 10. With this configuration, the conductor layers 41, 42 are arranged so as to reduce the length of the current path in the coil 25 while ensuring a relatively large width. The shorter the current path in the coil 25, the more the inductance can be reduced. Thus, the electronic component 1 includes conductor layers 41, 42 configured to reduce inductance in the coil 25. As a result, the electronic component can be made compact while achieving desired characteristics.

[0119] 14(a), 14(b), 15(a), 15(b), and 16 are diagrams illustrating differences in current paths between an example of an electronic component according to this embodiment and a comparative example. FIG. 14(a) is a schematic perspective view of coil 125 in the comparative example. FIG. 14(b) is a schematic perspective view of coil 25 in electronic component 1. FIG. 15(a) is a schematic development view of coil 125 in the comparative example. FIG. 15(b) is a schematic development view of coil 25 in electronic component 1. FIG. 16 is a diagram illustrating differences in length between coil 125 in the comparative example and coil 25 of electronic component 1.

[0120] Coil 125 includes a pair of conductor layers 141, a conductor layer 142, and a plurality of connecting conductors 143. The pair of conductor layers 141 correspond to adjacent conductor layers 41 in coil 25. Conductor layer 142 corresponds to conductor layer 42 of coil 25. The plurality of connecting conductors 143 correspond to the plurality of connecting conductors 43 of coil 25.

[0121] 14(a), in the coil 125, the extension direction of each conductor layer 141 and the extension direction of the conductor layer 142 are perpendicular to the coil axis AX25 and are aligned along the X-axis direction along the insulator layers. That is, when viewed from the Z-axis direction, each conductor layer 141 extends along the X-axis direction. Therefore, when the coil 125 is unfolded, as shown in FIG. 15(a), the conductor layer 141 and the connecting conductor 143 extend on the same straight line, and only the conductor layer 142 is inclined with respect to the conductor layer 141 and the connecting conductor 143.

[0122] 14(b), in the coil 25, the extension direction of each conductor layer 41 and the extension direction of the conductor layer 142 are inclined with respect to the X-axis direction, which is perpendicular to the coil axis AX25 and along the insulator layer 10. Therefore, when the coil 25 is unfolded, as shown in FIG. 15(b), in addition to the conductor layer 42, the pair of conductor layers 41 are inclined with respect to the connecting conductor 43. In this case, as shown in FIG. 16, the length of the coil 25 is shorter than the length of the coil 125, and the current path of the coil 25 is shorter than the current path of the coil 125. FIG. 16 is a diagram comparing the length of the combination of the pair of conductor layers 41 and the connecting conductor 43 with the length of the combination of the pair of conductor layers 141 and the connecting conductor 143.

[0123] In electronic component 1, the current path in coil 25 is shorter than the current path in coil 125, and the inductance of coil 25 can be reduced compared to the inductance of coil 125. With this configuration, for example, even if the inductance is increased by other factors by the amount reduced by ensuring the width of conductor layers 41 and 42 and the arrangement of conductor layers 41 and 42, a desired inductance can be ensured. For example, the cross-sectional area of ​​coil 25 can be increased compared to the cross-sectional area of ​​coil 125 without changing the inductance of coil 25. The cross-sectional area of ​​coil 25 corresponds to, for example, the area of ​​region R2. If the cross-sectional area of ​​coil 25 is increased, the magnetic flux generated by coil 25 can be increased.

[0124] The plurality of conductor layers 41 includes a pair of conductor layers 61 and 62. The pair of conductor layers 61 and 62 are connected to each other via the conductor layer 42. In this case, the length of the current path in the coil 25 can be reduced with a simpler configuration.

[0125] The pair of conductor layers 61, 62 are conductor layers 41 adjacent to each other in the direction along the coil axis AX5 among the plurality of conductor layers 41. In this case, the length of the current path in the coil can be reduced with a simpler configuration.

[0126] Conductor layer 41 and conductor layer 42, which are connected to each other via connecting conductor 43, are arranged line-symmetrically when viewed from the stacking direction. In this case, the current is dispersed and flows easily, which can reduce current loss. If the current flows dispersedly, the current density decreases and the Q value of coil 25 also improves.

[0127] Each conductor layer 41 includes a pair of end portions 41a, 41b located on opposite sides of each other. The plurality of connecting conductors 43 includes connecting conductors 51 and 52. The connecting conductors 51 and 52 are connected to the end portion 41a. In this case, the current flows dispersedly between the connecting conductors 51 and 52, which can further reduce current loss. In this case, the Q value of the coil can also be further improved.

[0128] Of the multiple conductor layers 41 and the multiple conductor layers 42, corresponding conductor layers 41 and 42 are connected via connecting conductors 51 and 52. A connecting portion C11 where the connecting conductor 51 and the end portion 41a are connected to each other, and a connecting portion C12 where the connecting conductor 52 and the end portion 41a are connected to each other, are arranged in a direction D3 that is inclined with respect to the extending directions D1 and D2 of the conductor layers 41 and 42 connected to the connecting conductors 51 and 52. In this case, the current flows more evenly distributed between the connecting conductors 51 and 52, and current loss can be further reduced. In this case, the Q value of the coil can also be further improved.

[0129] The angle θ1 formed between the arrangement direction of the coupling portions C11 and C12 in the conductor layer 41 and the extending direction D1 of the conductor layer 41 may be equal to the angle θ2 formed between the arrangement direction of the coupling portions C11 and C12 in the conductor layer 41 and the extending direction D2 of the conductor layer 41. In this case, the current flows more evenly and distributedly between the connecting conductors 51 and 52, which can further reduce current loss. In this case, the Q value of the coil can also be further improved.

[0130] In a configuration in which multiple connection conductors 73 are connected to one end 71a of the conductor layer 71, it is necessary to ensure space in the conductor layer 71 for arranging the multiple connection conductors 73. For example, it is necessary to ensure a predetermined distance between adjacent connection conductors 73 as viewed from the stacking direction, and it is also necessary to ensure a predetermined distance between the edge of the conductor layer 71 and the connection conductors 73 as viewed from the stacking direction. For example, it is necessary to ensure a distance of 20 μm or more and 300 μm or less between adjacent connection conductors 73. If the distance between adjacent connection conductors 73 is less than 20 μm, cracks may occur in the element body 2. In the example shown in this embodiment, the distance between adjacent connection conductors 73 is 60 μm. For example, it is necessary to ensure a distance of 0 μm or more and 100 μm or less between the edge of the conductor layer 71 and the connection conductors 73. When a predetermined distance is ensured between the edge of the conductor layer 71 and the connecting conductor 73 as viewed in the stacking direction, variations in the characteristics of the coil 27 can be suppressed even if the connection position between the conductor layer 71 and the connecting conductor 73 is misaligned during manufacturing. The shorter the distance between the edge of the conductor layer 71 and the connecting conductor 73 as viewed in the stacking direction, the smaller the width of the conductor layer 71 can be. Therefore, the shorter the distance between the edge of the conductor layer 71 and the connecting conductor 73 as viewed in the stacking direction, the more improved the characteristics of the coil 27 can be.

[0131] In coil 27 of electronic component 1, coupling portion C21 and coupling portion C22 are arranged in direction D14 inclined with respect to extension direction D11 of conductor layer 71. In this case, current can be dispersed between connecting conductor 81 and connecting conductor 82. This reduces the current density in conductor layer 71, improving the Q value of the coil. Furthermore, the width of conductor layer 71 can be reduced in direction D13, which is perpendicular to extension direction D11 of conductor layer 71 and extends along insulator layer 10. Therefore, this electronic component 1 can achieve both desired characteristics and compactness.

[0132] The coil 27 includes at least one conductor layer 72. The conductor layer 72 is disposed at a different position from the at least one conductor layer 71 in the stacking direction. The conductor layer 72 is inclined with respect to the extending direction D11 of the at least one conductor layer 71 and extends in a direction D12 along the insulator layer. The conductor layer 72 includes end portions 72a and 72b located opposite each other. The end portions 71a and 72a are connected by connecting conductors 81 and 82, respectively. In this case, a current can flow in a dispersed manner even in the coil 27 including the conductor layer 72.

[0133] The arrangement direction of the coupling portion C21 and the coupling portion C22 intersects with the extending direction D12 of the conductor layer 72. In this case, the current flow in the conductor layer 72 can be further dispersed.

[0134] In the direction along the coil axis AX7, the coupling portion C21 is closer to the end 72b than the coupling portion C22. In the extension direction D11 of the conductor layer 71, the coupling portion C21 is farther from the end 71b than the coupling portion C22. In this case, the current flow in the conductor layer 72 can be further dispersed.

[0135] In the conductor layer 71, the angle θ7 formed by the arrangement direction of the coupling portions C21 and C22 and the extending direction D11 of the conductor layer 71 is 80 degrees or less. In this case, the width of the conductor layer 71 can be further reduced in a direction D13 that is perpendicular to the extending direction D11 of the conductor layer 71 and that is along the insulator layer 10.

[0136] The multiple connection conductors 73 further include connection conductors 83 and 84. The connection conductors 83 and 84 are connected to the same end 71a of the conductor layer 71 that is connected to the connection conductors 81 and 82. The connection conductor 83 and the conductor layer 71 are connected to each other at a connection portion C23. The connection conductor 84 and the conductor layer 71 are connected to each other at a connection portion C24. In the conductor layer 71, the connection portions C23 and C24 are arranged in a direction D15 that is inclined with respect to the extension direction D11 of the conductor layer 71. In this case, the current can also flow in a dispersed manner between the connection conductors 83 and 83. Even with this configuration, the width of the conductor layer 71 can be reduced in a direction D13 that is perpendicular to the extension direction D11 of the conductor layer 71 and along the insulator layer 10.

[0137] The arrangement direction of the connecting portion C21 and the connecting portion C22 and the arrangement direction of the connecting portion C23 and the connecting portion C24 intersect with each other. The position where the arrangement direction of the connecting portion C21 and the connecting portion C22 and the arrangement direction of the connecting portion C23 and the connecting portion C24 intersect with each other is located between the connecting portion C21 and the connecting portion C23 when viewed from the direction along the coil axis AX7. In this case, the cross-sectional area of ​​the coil 27 can be secured.

[0138] The connecting portion C23 and the connecting portion C24 are arranged in a direction D14 that is the same as the arrangement direction of the connecting portion C21 and the connecting portion C22. In this case, the current can flow in a more dispersed manner.

[0139] At least one conductor layer 71 includes a pair of conductor layers 91, 92. The pair of conductor layers 91, 92 are electrically connected to each other via a plurality of connection conductors 73 and at least one conductor layer 72. The pair of conductor layers 91, 92 extend along each other when viewed from the stacking direction. The connection conductors 81, 82 are coupled to the ends 71 ​​a of each of the pair of conductor layers 91, 92. The connection conductors 83, 84 are coupled to at least one end 71 b of each of the pair of conductor layers 91, 92. In this case, the width of each of the pair of conductor layers 91, 92 can be reduced in a direction D13 that is perpendicular to the extension direction D11 of the conductor layer 71 and along the insulator layer 10.

[0140] The coupling portions C21 and C22 in one of the pair of conductor layers 91 and 92 are arranged in a direction D14 that is the same as the arrangement direction of the coupling portions C21 and C22 in the other of the pair of conductor layers 91 and 92. In this case, the cross-sectional area of ​​the coil 27 can be further increased.

[0141] The connecting conductors 83 and 84 are connected to the end portions 71b of the pair of conductor layers 91 and 92. The arrangement direction of the coupling portion C21 and the coupling portion C22 in one of the pair of conductor layers 91 and 92 intersects with the arrangement direction of the coupling portion C23 and the coupling portion C24 in one of the pair of conductor layers 91 and 92. The coupling portion C23 and the coupling portion C24 in one of the pair of conductor layers 91 and 92 are arranged in a direction D15 that is along the arrangement direction of the coupling portion C23 and the coupling portion C24 in the other of the pair of conductor layers 71. In this case, the cross-sectional area of ​​the coil 27 can be further increased.

[0142] The above describes embodiments and modifications of the present invention, but the present invention is not necessarily limited to the above-described embodiments and modifications, and various modifications are possible without departing from the spirit of the present invention.

[0143] For example, in the above-described embodiments and modifications, coils 21 and 23 may be coils wound multiple times around the coil axis. For example, when coil 21 is wound multiple times around coil axis AX1, multiple conductor layers 31 may be arranged along coil axis AX1. In this case, coil 21 may further include at least one conductor layer that is arranged at a different position from the multiple conductor layers 31 in the stacking direction and connected to each conductor layer 31 via a connecting conductor 32. For example, when coil 23 is wound multiple times around coil axis AX3, multiple conductor layers 34 may be arranged along coil axis AX3. In this case, adjacent conductor layers 34 may be connected by a connecting conductor extending in the stacking direction.

[0144] In the above-described embodiment and modified examples, two connection conductors 43 are connected to the same end portions 41a and 41b. However, three or more connection conductors 43 may be connected to the same end portions 41a and 41b.

[0145] In the above-described embodiment and modified examples, two connection conductors 73 are connected to the same end portions 71a and 71b. However, three or more connection conductors 73 may be connected to the same end portions 71a and 71b.

[0146] The positions of the conductor layer 41 and the conductor layer 42 may be interchanged in the Z-axis direction. In other words, the conductor layer 41 may be disposed closer to the mounting surface than the conductor layer 42. Similarly, the positions of the conductor layer 71 and the conductor layer 72 may be interchanged in the Z-axis direction. In other words, the conductor layer 71 may be disposed closer to the mounting surface than the conductor layer 72.

[0147] In the present embodiment and the modified examples, a configuration has been described in which coils 21, 23, coil 25, and coil 27 are arranged inside one element body 2. However, the combination of coils provided in electronic component 1 is not limited to this. Electronic component 1 may include only coil 21 and coil 23 as coils. Electronic component 1 may include only coil 25 as coils. Electronic component 1 may include only coil 27 as coils. Electronic component 1 may be configured by appropriately combining coils 21, 23, 25, 27, and 29.

[0148] In the example described with reference to Fig. 8, coil 27 or another coil may be placed in place of coil 25. In this case, it is preferable that the coil placed in place of coil 25 has a coil axis that intersects with the coil axis AX3 of coil 23. It is even more preferable that the coil placed in place of coil 25 has a coil axis that intersects with the coil axis AX3 of coil 23 at right angles. In these cases, the magnetic field is less likely to affect the coil and coil 23. [Explanation of symbols]

[0149] 1...electronic component, 2...element body, 10...insulator layer, 25...coil, 41, 42...conductor layer, 41a, 41b, 42a, 42b...end portion, 43, 51, 52, 53, 54...connecting conductor, AX5...coil axis, D1, D2...extension direction, D3...direction, L1...width, L2...shortest distance, θ1, θ2...angle.

Claims

1. an element body including a plurality of stacked insulator layers; a coil disposed inside the element body and having a coil axis extending in a direction perpendicular to the stacking direction of the plurality of insulator layers, the coil includes a plurality of conductor layers that intersect the coil axis and extend in a direction along the insulator layers, and a plurality of connection conductors that are each coupled to a corresponding one of the plurality of conductor layers and extend in the stacking direction, the plurality of conductor layers include a plurality of first conductor layers arranged along the coil axis, and at least one second conductor layer that is disposed at a position different from the plurality of first conductor layers in the stacking direction and is connected to a corresponding first conductor layer among the plurality of first conductor layers via the connection conductor, Among the plurality of conductor layers, the width of each conductor layer adjacent to each other in the direction along the coil axis in a direction perpendicular to the extension direction of the conductor layer is greater than the shortest distance between the adjacent conductor layers. an extending direction of each of the first conductor layers and an extending direction of the at least one second conductor layer intersect each other when viewed from the stacking direction, and are inclined with respect to a direction perpendicular to the coil axis and along the insulator layer; Each of the conductor layers includes a pair of opposite end portions, the plurality of connecting conductors include a first connecting conductor and a second connecting conductor; The electronic component has the first connecting conductor and the second connecting conductor coupled to at least one of the pair of ends.

2. The electronic component according to claim 1 , wherein the plurality of first conductor layers include a pair of first conductor layers connected to each other via the second conductor layer.

3. The electronic component according to claim 2 , wherein the pair of first conductor layers are conductor layers among the plurality of conductor layers that are adjacent to each other in a direction along the coil axis.

4. The electronic component according to claim 1 , wherein the first conductor layer and the second conductor layer, which are connected to each other via the connecting conductor, are arranged symmetrically with respect to the stacking direction.

5. Among the plurality of first conductor layers and the at least one second conductor layer, the first conductor layer and the second conductor layer corresponding to each other are connected via the first connecting conductor and the second connecting conductor, 2. The electronic component according to claim 1, wherein a first connecting portion where the first connecting conductor and the end portion are connected to each other, and a second connecting portion where the second connecting conductor and the end portion are connected to each other are arranged in a direction inclined with respect to the extension direction of the first and second conductor layers connected to the first and second connecting conductors.

6. 6. The electronic component according to claim 5, wherein an angle formed between an arrangement direction of the first connecting portion and the second connecting portion in the first conductor layer and an extension direction of the first conductor layer is equal to an angle formed between an arrangement direction of the first connecting portion and the second connecting portion in the second conductor layer and an extension direction of the second conductor layer.

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