Electronic component

Abstract

To provide an electronic component capable of improving a Q value while achieving miniaturization.SOLUTION: An electronic component 1 includes an element body 2 and a resonator 3 disposed in the element body 2. The resonator 3 includes two conductors 13 and 14 extending in a second direction D2, and an inductor conductor 15 connecting the two conductors 13 and 14. In at least one conductor of the two conductors 13 and 14, when the conductor is viewed from the second direction D2, a first length in a first direction D1 is longer than a second length in a third direction D3, and a horizontal axis is a value of the second length of the conductor. In a graph in which a vertical axis is a Q value, when a first value of a horizontal axis is X1, a second value of a horizontal axis is X2, the first Q value of the vertical axis in a first value X1 is Y1, and a second Q value of the vertical axis in the second value X2 is Y2, a slope of the graph in (Y2-Y1) / (X2-X1) is negative.SELECTED DRAWING: Figure 1

Description

[Technical Field]

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

[0002] Patent Document 1 discloses an electronic component in which a plurality of inductors and capacitors are formed within a laminate formed by stacking insulator layers, and a plurality of LC resonators are formed by electromagnetically coupling the inductors and capacitors, in which the inductors are formed by via holes connected in the stacking direction of the insulator layers, and a coupling adjustment conductor made up of via holes connected in the stacking direction of the insulator layers is arranged between at least two adjacent LC resonators among the plurality of LC resonators, and the coupling adjustment conductor is grounded. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-57543 Summary of the Invention [Problem to be solved by the invention]

[0004] An object of one aspect of the present invention is to provide an electronic component that can be made smaller and has an improved Q value. [Means for solving the problem]

[0005] (1) An electronic component according to one aspect of the present invention comprises a base body formed by stacking a plurality of insulator layers, and a resonator disposed within the base body, wherein the resonator has two conductors extending in a stacking direction of the plurality of insulator layers and a connecting conductor connecting the two conductors, wherein, in at least one of the two conductors, when viewed from the stacking direction, a first length in a direction perpendicular to the opposing direction of the two conductors is longer than a second length in the opposing direction, and in a graph in which the horizontal axis represents the value of the second length of the conductor and the vertical axis represents a Q value, when the first value on the horizontal axis is X1, the second value on the horizontal axis is X2, the first Q value on the vertical axis at the first value X1 is Y1, and the second Q value on the vertical axis at the second value X2 is Y2, the slope of the graph in (Y2-Y1) / (X2-X1) is negative.

[0006] In an electronic component according to one aspect of the present invention, at least one of the two conductors has a first length in a direction perpendicular to the opposing direction of the two conductors when viewed from the stacking direction, which is longer than a second length in the opposing direction. This allows the opening formed by the two conductors and the connecting conductor to be enlarged while avoiding an increase in the dimensions of the element body in the opposing direction. Therefore, the electronic component can be miniaturized while increasing inductance. In this configuration, in a graph in which the horizontal axis represents the second length of the conductors and the vertical axis represents the Q (Quality Factor) value, when the first Q value on the vertical axis at a first value X1 is Y1 and the second Q value on the vertical axis at a second value X2 is Y2, the slope of the graph for (Y2-Y1) / (X2-X1) is negative. By possessing such characteristics, the electronic component can achieve an improved Q value.

[0007] (2) In the electronic component of (1), the second length of the conductor may be 125 μm or less. This configuration allows the opening formed by the two conductors and the connecting conductor to be large. Therefore, the electronic component can be made smaller and have higher inductance.

[0008] (3) In the electronic component of (1) or (2), the conductor may have a plurality of recesses on its side surface, the recesses being arranged opposite each other in the facing direction and extending in the stacking direction. This configuration can improve the bonding strength between the element body and the conductor.

[0009] (4) In any one of the electronic components (1) to (3) above, the first length of each of the two conductors may be longer than the second length, and the first length and the second length of each of the two conductors may be the same. In this configuration, the cross-sectional areas of the two conductors can be increased, thereby reducing the resistance values ​​of the two conductors. Therefore, the Q value of the electronic component can be further improved.

[0010] (5) In any one of the electronic components (1) to (4) above, the direction perpendicular to the opposing direction of the two conductors when viewed from the stacking direction may be along the longitudinal direction of the element body. With this configuration, the resonators can be efficiently arranged within the conductor element body.

[0011] (6) In any one of the electronic components (1) to (5) above, the resonator may include a plurality of pairs of two conductors and a connecting conductor.

[0012] (7) An electronic component according to one aspect of the present invention comprises a base body formed by stacking a plurality of insulator layers, and a resonator disposed within the base body, wherein the resonator has two conductors extending in the stacking direction of the plurality of insulator layers and a connecting conductor connecting the two conductors, wherein, in at least one of the two conductors, when viewed from the stacking direction, a first length in a direction perpendicular to the opposing direction of the two conductors is longer than a second length in the opposing direction, and in a graph where the horizontal axis represents the width dimension in the opposing direction of the two conductors and the vertical axis represents the Q value, when the first value on the vertical axis is X1, the second value on the vertical axis is X2, the first Q value on the vertical axis at the first value X1 is Y1, and the second Q value on the vertical axis at the second value X2 is Y2, the value of (Y2-Y1) / (X2-X1) is negative.

[0013] In an electronic component according to one aspect of the present invention, at least one of the two conductors has a first length in a direction perpendicular to the opposing direction of the two conductors when viewed from the stacking direction, which is longer than a second length in the opposing direction. This allows the opening formed by the two conductors and the connecting conductor to be enlarged while avoiding an increase in the dimension of the element body in the opposing direction. Therefore, the electronic component can be miniaturized while increasing inductance. In this configuration, in a graph where the horizontal axis represents the width of the two conductors in the opposing direction and the vertical axis represents the Q (Quality Factor) value, the slope of the graph (Y2-Y1) / (X2-X1) is negative when the first Q value on the vertical axis at a first value X1 is Y1 and the second Q value on the vertical axis at a second value X2 is Y2. By possessing such characteristics, the electronic component can achieve an improved Q value. [Effects of the Invention]

[0014] According to one aspect of the present invention, it is possible to improve the Q value while achieving miniaturization. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a perspective view of an electronic component according to a first embodiment. [Figure 2] FIG. 2 is an exploded perspective view of the electronic component. [Figure 3] FIG. 3 is a diagram showing a cross-sectional configuration of a conductor. [Figure 4] FIG. 4 is a diagram illustrating a resonator. [Figure 5] FIG. 5 is a graph showing the relationship between the second length of the conductor and the Q value. [Figure 6] FIG. 6 is a perspective view of an electronic component according to the second embodiment. [Figure 7] FIG. 7 is a diagram showing a cross-sectional configuration of a conductor. [Figure 8] FIG. 8 is a graph showing the relationship between the second length of the conductor and the Q value. [Figure 9]FIG. 9 is a perspective view of an electronic component according to the third embodiment. [Figure 10] FIG. 10 is a diagram showing a cross-sectional structure of a conductor. [Figure 11] FIG. 11 is a graph showing the relationship between the second length of the conductor and the Q value. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, preferred 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 corresponding elements are designated by the same reference numerals, and redundant description will be omitted.

[0017] [First embodiment] Fig. 1 is a perspective view of an electronic component according to a first embodiment. As shown in Fig. 1, the electronic component 1 includes an element body 2 and a resonator 3. In Fig. 1, the element body 2 is indicated by a two-dot chain line.

[0018] The element body 2 has 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. The element body 2 has, as its outer surfaces, a pair of end faces 2a and 2b, a pair of main faces 2c and 2d, and a pair of side faces 2e and 2f. The end faces 2a and 2b face each other. The main faces 2c and 2d face each other. The side faces 2e and 2f face each other. Hereinafter, the facing direction of the end faces 2a and 2b is referred to as a first direction D1, the facing direction of the main faces 2c and 2d is referred to as a second direction D2, and the facing direction of the side faces 2e and 2f is referred to as a third direction D3. The first direction D1, the second direction D2, and the third direction D3 are approximately perpendicular to each other.

[0019] The end faces 2a, 2b extend in the second direction D2 to connect the principal faces 2c, 2d. The end faces 2a, 2b also extend in the third direction D3 to connect the side faces 2e, 2f. The principal faces 2c, 2d extend in the first direction D1 to connect the end faces 2a, 2b. The principal faces 2c, 2d also extend in the third direction D3 to connect the side faces 2e, 2f. The side faces 2e, 2f extend in the first direction D1 to connect the end faces 2a, 2b. The side faces 2e, 2f also extend in the second direction D2 to connect the principal faces 2c, 2d.

[0020] The main surface 2d is a mounting surface that faces another electronic device (not shown) when the electronic component 1 is mounted on the other electronic device (for example, a circuit board or a laminated electronic component). The end surfaces 2a and 2b are surfaces that are continuous with the mounting surface (i.e., the main surface 2d).

[0021] The length of the element body 2 in the first direction D1 is longer than the length of the element body 2 in the second direction D2 and the length of the element body 2 in the third direction D3. The first direction D1 is the longitudinal direction of the element body 2. The length of the element body 2 in the second direction D2 is shorter than the length of the element body 2 in the third direction D3. That is, in this embodiment, the end faces 2a, 2b, main faces 2c, 2d, and side faces 2e, 2f have a rectangular shape. The length of the element body 2 in the second direction D2 may be equal to the length of the element body 2 in the third direction D3, or may be longer than the length of the element body 2 in the third direction D3.

[0022] In this embodiment, "equivalent" does not only mean equal, but also may mean values ​​that include slight differences or manufacturing errors within a preset range. For example, if multiple values ​​are within a range of ±5% of the average value of the multiple values, the multiple values ​​are defined as equivalent.

[0023] The element body 2 is formed by stacking multiple element layers (insulator layers) 6 in the second direction D2. That is, the stacking direction of the element body 2 is the second direction D2. In an actual element body 2, the multiple element layers 6 may be integrated to the extent that the boundaries between the layers are not visible, or may be integrated so that the boundaries between the layers are visible.

[0024] The base layer is formed, for example, from a sintered ceramic green sheet containing a dielectric material, such as 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.

[0025] 2 is an exploded perspective view of the electronic component 1. As shown in Fig. 1 and Fig. 2, the resonator 3 includes a first terminal conductor 10, a second terminal conductor 11, a ground conductor 12, a first conductor 13, a second conductor 14, an inductor conductor (connecting conductor) 15, an inductor conductor (connecting conductor) 16, a capacitor conductor 17, and a capacitor conductor 18.

[0026] The first terminal conductor 10 is disposed on the main surface 2d side of the element body 2. The first terminal conductor 10 is a portion to be connected to an electronic device or the like. The first terminal conductor 10 has a U-shape when viewed from the second direction D2. The first terminal conductor 10 is made of, for example, a conductive material (e.g., Cu). The first terminal conductor 10 may be provided with a plating layer (not shown) containing, for example, Ni, Sn, Au, or the like by electrolytic plating or electroless plating. The plating layer may include, for example, a Ni plating film containing Ni and covering the first terminal conductor 10, and an Au plating film containing Au and covering the Ni plating film.

[0027] The second terminal conductor 11 is disposed on the main surface 2d side of the element body 2. The second terminal conductor 11 is a portion to be connected to an electronic device or the like. The second terminal conductor 11 has a circular shape when viewed from the second direction D2. The second terminal conductor 11 is made of, for example, a conductive material (e.g., Cu). The second terminal conductor 11 may be provided with a plating layer (not shown) containing, for example, Ni, Sn, Au, or the like by electrolytic plating or electroless plating.

[0028] The ground conductor 12 is arranged on the principal surface 2d side of the element body 2. The ground conductor 12 has a substantially rectangular shape when viewed from the second direction D2. The ground conductor 12 is electrically connected to the first terminal conductor 10. The ground conductor 12 and the first terminal conductor 10 are electrically connected by a connecting conductor 19, a connecting conductor 20, and a connecting conductor 21.

[0029] The first conductor 13 extends along the second direction D2. The first conductor 13 may be composed of a plurality of conductor portions 13a, 13b, 13c, 13d, 13e, 13f, 13g, 13h, 13i, 13j, 13k, 13l, 13m, 13n, 13o, and 13p. The first conductor 13 is disposed near the side surface 2e of the element body 2. The first conductor 13 has a first end portion 13A and a second end portion 13B. The first end portion 13A of the first conductor 13 is connected to the inductor conductor 15. The first end portion 13A of the first conductor 13 is connected to the inductor conductor 15. The second end portion 13B of the first conductor 13 is connected to the capacitor conductor 17.

[0030] The second conductor 14 extends along the second direction D2. The second conductor 14 may be composed of a plurality of conductor portions 14a, 14b, 14c, 14d, 14e, 14f, 14g, 14h, 14i, 14j, 14k, 14l, 14m, 14n, 14o, 14p, 14q, and 14r. The second conductor 14 is disposed near the side surface 2f of the element body 2. The second conductor 14 is disposed opposite the first conductor 13 in the third direction D3. The first conductor 13 and the second conductor 14 are disposed spaced apart from each other in the third direction D3. The second conductor 14 has a first end portion 14A and a second end portion 14B. The first end portion 14A of the second conductor 14 is connected to the inductor conductor 15. The second end portion 14B of the second conductor 14 is connected to the ground conductor 12.

[0031] FIG. 3 is a diagram showing the cross-sectional configuration of the conductors (first conductors 13, second conductors 14). The cross sections of the first conductors 13 and second conductors 14 shown in FIG. 3 are cross sections of a plane along the first direction D1 and the third direction D3. As shown in FIG. 3, the first conductors 13 and second conductors 14 have the same shape and the same dimensions. When viewed from the second direction D2, the first conductors 13 and second conductors 14 have a first length L1 in the first direction D1 that is longer than a second length L2 in the third direction D3 (L1>L2). In this embodiment, the first length L1 and the second length L2 of the first conductors 13 and the second conductors 14 are the same. In this embodiment, the second length L2 is, for example, 125 μm or less, and preferably 100 μm or less. The second length L2 can be, for example, 20 μm or more.

[0032] The first conductors 13 and the second conductors 14 are arranged so that the first length L1 is along the first direction D1 and the second length L2 is along the third direction D3. That is, the extending direction of the first conductors 13 and the second conductors 14 is perpendicular to the direction in which the first conductors 13 and the second conductors 14 are arranged side by side (the third direction D3). "Perpendicular" includes "approximately perpendicular," and can include a range of, for example, about ±3°.

[0033] In this embodiment, the first conductors 13 and the second conductors 14 have a shape in which multiple circles (eight in the example shown in FIG. 3 ) overlap. Specifically, the first conductors 13 and the second conductors 14 have a shape in which a pair of adjacent circles partially overlap. For example, two adjacent circles overlap such that the outer periphery of one circle passes through the center of the other circle. The side surfaces 13S, 14S of the first conductors 13 and the second conductors 14 are curved surfaces. A plurality of recesses 13C, 14C are provided on the side surfaces 13S, 14S of the first conductors 13 and the second conductors 14. The recesses 13C, 14C extend in the second direction D2. The recesses 13C, 14C are arranged at a predetermined interval in the first direction D1. The recesses 13C, 14C are arranged at positions facing each other in the third direction D3.

[0034] Fig. 4 is a diagram showing the resonator 3. As shown in Fig. 4, the first conductor 13 and the second conductor 14 are arranged with a width (width dimension) W in the third direction D3. The width W is, for example, 600 µm. The width W is the distance between the end of the first conductor 13 on the side face 2e side and the end of the second conductor 14 on the side face 2f side. In other words, the width W is the maximum distance between the first conductor 13 and the second conductor 14 in the third direction D3.

[0035] The inductor conductor 15 constitutes an inductor. In this embodiment, as shown in FIGS. 1 and 2, the inductor conductor 15 has a rectangular shape. The inductor conductor 15 extends linearly along the third direction D3. The inductor conductor 15 is installed across the first end 13A of the first conductor 13 and the first end 14A of the second conductor 14. The inductor conductor 15 electrically connects the first conductor 13 and the second conductor 14.

[0036] The inductor conductor 16 constitutes an inductor. In this embodiment, the inductor conductor 16 has a rectangular shape. That is, the inductor conductor 16 has the same shape as the inductor conductor 15. The inductor conductor 16 extends linearly along the third direction D3. The inductor conductor 16 is electrically connected to the inductor conductor 15 by the connecting conductors 22 and 23. The inductor conductor 16 is disposed opposite the inductor conductor 15 in the second direction D2. The inductor conductor 16 electrically connects the first conductor 13 and the second conductor 14.

[0037] The capacitor conductor 17 has a rectangular shape when viewed from the second direction D2. The capacitor conductor 17 and the ground conductor 12 form a capacitor. The capacitor conductor 17 is connected to the second end 13B of the first conductor 13. The capacitor conductor 17 is disposed at a predetermined distance from the ground conductor 12 in the second direction D2.

[0038] The capacitor conductor 18 is electrically connected to the second terminal conductor 11. The capacitor conductor 18 and the second terminal conductor 11 are electrically connected by a connection conductor 24, a connection conductor 25, a connection conductor 26, a connection conductor 27, and a connection conductor 28. The capacitor conductor 18 is disposed at a predetermined distance from the capacitor conductor 17 in the second direction D2.

[0039] Fig. 5 is a graph showing the relationship between the second length L2 of the first conductors 13 and the second conductors 14 and the Q value. In Fig. 5, the horizontal axis represents the second length L2 [μm] of the first conductors 13 and the second conductors 14, and the vertical axis represents the Q value. Fig. 5 shows the results at a frequency of 9 GHz.

[0040] As shown in FIG. 5 , in electronic component 1, when the first value on the horizontal axis is X1, the second value on the horizontal axis is X2, the first Q value on the vertical axis at the first value X1 is Y1, and the second Q value on the vertical axis at the second value X2 is Y2, (Y2-Y1) / (X2-X1) In other words, in the electronic component 1, the first conductors 13 and the second conductors 14 are configured so that the slope of the graph in the above relationship is negative.

[0041] In the example shown in FIG. 5 , for the electronic component 1, X1 may be 20 μm, X2 may be 35 μm, Y1 may be 160.4, and Y2 may be 159.7. In this case, the slope of the graph is negative. For the electronic component 1, X1 may be 35 μm, X2 may be 50 μm, Y1 may be 159.7, and Y2 may be 158.6. For the electronic component 1, X1 may be 50 μm, X2 may be 65 μm, Y1 may be 158.6, and Y2 may be 156.9. For the electronic component 1, X1 may be 65 μm, X2 may be 95 μm, Y1 may be 156.9, and Y2 may be 149.0. In this embodiment, the Q value is maximized when the second length L2 is 35 μm.

[0042] As described above, in the electronic component 1 according to this embodiment, when viewed from the second direction D2, the first length L1 of the first conductors 13 and the second conductors 14 in the first direction D1 is longer than the second length L2 in the third direction D3 (L1 > L2). This allows the opening formed by the first conductors 13, the second conductors 14, and the inductor conductor 15 to be enlarged while avoiding an increase in the dimension of the element body 2 in the third direction D3. Therefore, the electronic component 1 can achieve a small size and high inductance. In this configuration, in a graph where the horizontal axis represents the second length L2 of the first conductors 13 and the second conductors 14 and the vertical axis represents a quality factor (Q), the slope of the graph for (Y2 - Y1) / (X2 - X1) is negative when the first Q value on the vertical axis at a first value X1 is Y1 and the second Q value on the vertical axis at a second value X2 is Y2. The electronic component 1 exhibits these characteristics, thereby improving the Q value.

[0043] [Second embodiment] Next, a second embodiment will be described. Fig. 6 is a perspective view showing an electronic component according to the second embodiment. As shown in Fig. 6, electronic component 1A includes element body 2, terminal electrodes 30, 31, 32, 33, 34, 35, 36, 37, 38, and resonator 40.

[0044] Each of the terminal electrodes 30 to 38 is provided on the element body 2. Each of the terminal electrodes 30 to 38 is arranged on the main surface 2d of the element body 2. Each of the terminal electrodes 30 to 38 has a rectangular shape (rectangular shape).

[0045] The resonator 40 includes a first ground conductor 41, a second ground conductor 42, a first conductor 43, a second conductor 44, a third conductor 45, a fourth conductor 46, a first inductor conductor (connecting conductor) 47, a second inductor conductor (connecting conductor) 48, a connecting conductor 49, a capacitor conductor 50, and a capacitor conductor 51.

[0046] The first ground conductor 41 is disposed on the principal surface 2d side of the element body 2. The first ground conductor 41 has a substantially rectangular shape when viewed from the second direction D2. The first ground conductor 41 is electrically connected to the terminal electrode 34.

[0047] The second ground conductor is disposed on the main surface 2d side of the element body 2. The second ground conductor is electrically connected to the terminal electrode .

[0048] The first conductor 43 extends along the second direction D2. The first conductor 43 may be composed of a plurality of conductor portions. The first conductor 43 has a first end portion 43A and a second end portion 43B. The first end portion 43A of the first conductor 43 is connected to the first inductor conductor 47. The second end portion 43B of the first conductor 43 is connected to the capacitor conductor 50.

[0049] The second conductor 44 extends along the second direction D2. The second conductor 44 may be composed of a plurality of conductor portions. The second conductor 44 is disposed in a position facing the first conductor 43 in the third direction D3. The first conductor 43 and the second conductor 44 are disposed spaced apart from each other in the first direction D1. The second conductor 44 has a first end 44A and a second end 44B. The first end 44A of the second conductor 44 is connected to the first inductor conductor 47. The second end 44B of the second conductor 44 is connected to the first ground conductor 41.

[0050] The third conductor 45 extends along the second direction D2. The third conductor 45 may be composed of a plurality of conductor portions. The third conductor 45 has a first end portion 45A and a second end portion 45B. The first end portion 45A of the third conductor 45 is connected to the second inductor conductor 48. The second end portion 45B of the third conductor 45 is connected to the connecting conductor 49.

[0051] The fourth conductor 46 extends along the second direction D2. The fourth conductor 46 may be composed of a plurality of conductor portions. The fourth conductor 46 is disposed in a position facing the third conductor 45 in the first direction D1. The fourth conductor 46 and the third conductor 45 are disposed spaced apart from each other in the first direction D1. The fourth conductor 46 has a first end 46A and a second end 46B. The first end 46A of the fourth conductor 46 is connected to the second inductor conductor 48. The second end 46B of the fourth conductor 46 is connected to the second ground conductor 42.

[0052] FIG. 7 is a diagram showing the cross-sectional configuration of the conductors (first conductor 43, second conductor 44, third conductor 45, fourth conductor 46). The cross sections of the first conductor 43, second conductor 44, third conductor 45, and fourth conductor 46 shown in FIG. 7 are cross sections of a plane along the first direction D1 and the third direction D3. As shown in FIG. 7, when the first conductor 43, second conductor 44, third conductor 45, and fourth conductor 46 are viewed from the second direction D2, the first length L1 in the first direction D1 is longer than the second length L2 in the third direction D3 (L1>L2). In this embodiment, the second length L2 is, for example, 160 μm or less, and preferably 100 μm or less. The second length L2 can be, for example, 35 μm or more.

[0053] The first conductors 43, the second conductors 44, the third conductors 45, and the fourth conductors 46 are arranged such that the first length L1 extends along the third direction D3 and the second length L2 extends along the first direction D1. That is, the extending direction of the first conductors 43, the second conductors 44, the third conductors 45, and the fourth conductors 46 is perpendicular to the direction in which the first conductors 43 and the second conductors 44, and the third conductors 45 and the fourth conductors 46 are arranged side by side (third direction D3). "Perpendicular" includes "approximately perpendicular," and can include a range of, for example, about ±3°.

[0054] In this embodiment, the first conductor 43, the second conductor 44, the third conductor 45, and the fourth conductor 46 have a shape in which multiple circles overlap. Specifically, the first conductor 43, the second conductor 44, the third conductor 45, and the fourth conductor 46 have a shape in which a pair of adjacent circles partially overlap. For example, two adjacent circles overlap such that the outer periphery of one circle passes through the center of the other circle. The side surfaces 43S, 44S, 45S, and 46S of the first conductor 43, the second conductor 44, the third conductor 45, and the fourth conductor 46 are curved surfaces. The side surfaces 43S, 44S, 45S, and 46S of the first conductor 43, the second conductor 44, the third conductor 45, and the fourth conductor 46 have multiple recesses 43C, 44C, 45C, and 46C. The recesses 43C, 44C, 45C, and 46C extend in the second direction D2. The recesses 43C, 44C, 45C, and 46C are arranged at predetermined intervals in the first direction D1. The recesses 43C, 44C, 45C, and 46C are arranged at positions facing each other in the third direction D3.

[0055] The first inductor conductor 47 constitutes an inductor. In this embodiment, as shown in FIG. 6 , the first inductor conductor 47 has a rectangular shape. The first inductor conductor 47 extends along a first direction D1. The first inductor conductor 47 may be composed of two members. The first inductor conductor 47 is bridged across a first end 43A of the first conductor 43 and a first end 44A of the second conductor 44. The first inductor conductor 47 electrically connects the first conductor 43 and the second conductor 44.

[0056] The second inductor conductor 48 constitutes an inductor. In this embodiment, the first inductor conductor 47 has a rectangular shape. That is, the second inductor conductor 48 has the same shape as the first inductor conductor 47. The second inductor conductor 48 extends along the first direction D1. The second inductor conductor 48 may be composed of two members. The second inductor conductor 48 spans between the first end 45A of the third conductor 45 and the first end 46A of the fourth conductor 46. The second inductor conductor 48 electrically connects the third conductor 45 and the fourth conductor 46.

[0057] The connecting conductor 49 constitutes an inductor. The connecting conductor 49 is connected to the second end 44B of the second conductor 44 and the second end 45B of the third conductor 45. The connecting conductor 49 electrically connects the second conductor 44 and the third conductor 45.

[0058] The capacitor conductor 50 has a rectangular shape when viewed from the second direction D2. The capacitor conductor 50 forms a capacitor together with the first ground conductor 41. The capacitor conductor 50 is connected to the second end 43B of the first conductor 43. The capacitor conductor 50 is disposed at a predetermined distance from the first ground conductor 41 in the second direction D2.

[0059] The capacitor conductor 51 has an L-shape when viewed from the second direction D2. The capacitor conductor 51 is electrically connected to the terminal electrode 36. The capacitor conductor 51 and the terminal electrode 36 are electrically connected by a connection conductor 52. The capacitor conductor 51 is disposed at a predetermined distance from the capacitor conductor 50 in the second direction D2.

[0060] In the resonator 70, an inductor is formed by the first conductor 43, the second conductor 44, and the first inductor conductor 47, and another inductor is formed by the third conductor 45, the fourth conductor 46, and the second inductor conductor 48. The resonator 70 has two sets (conductors, inductor conductors) that form the inductor.

[0061] Fig. 8 is a graph showing the relationship between the second length L2 of the first conductor 43, the second conductor 44, the third conductor 45, and the fourth conductor 46 and the Q value. In Fig. 8, the horizontal axis represents the second length L2 [μm] of the first conductor 43, the second conductor 44, the third conductor 45, and the fourth conductor 46, and the vertical axis represents the Q value. Fig. 8 shows the results at a frequency of 3.5 GHz.

[0062] As shown in FIG. 8 , in electronic component 1A, when the first value on the horizontal axis is X1, the second value on the horizontal axis is X2, the first Q value on the vertical axis at the first value X1 is Y1, and the second Q value on the vertical axis at the second value X2 is Y2, (Y2-Y1) / (X2-X1) The slope of the graph in the above relationship is negative. That is, in electronic component 1A, first conductors 43, second conductors 44, third conductors 45, and fourth conductors 46 are configured so that the slope of the graph in the above relationship is negative.

[0063] In the example shown in FIG. 8 , for electronic component 1A, X1 may be 35 μm, X2 may be 65 μm, Y1 may be 132.3, and Y2 may be 128.3. In this case, the slope of the graph is negative. For electronic component 1A, X1 may be 65 μm, X2 may be 95 μm, Y1 may be 128.3, and Y2 may be 126.1. For electronic component 1A, X1 may be 95 μm, X2 may be 155 μm, Y1 may be 126.1, and Y2 may be 118.2. In this embodiment, the Q value is maximized when second length L2 is 35 μm.

[0064] As described above, in the electronic component 1A according to this embodiment, when viewed in the second direction D2, the first conductor 43, the second conductor 44, the third conductor 45, and the fourth conductor 46 have a first length L1 in the first direction D1 that is longer than the second length L2 in the third direction D3 (L1>L2). This makes it possible to enlarge the opening formed by the first conductor 43, the second conductor 44, and the first inductor conductor 47 and the opening formed by the third conductor 45, the fourth conductor 46, and the second inductor conductor 48 while avoiding an increase in the dimension of the element body 2 in the third direction D3. Therefore, the electronic component 1A can achieve a high inductance while being miniaturized. In this configuration, in a graph in which the horizontal axis represents the second length L2 of the first conductors 43, the second conductors 44, the third conductors 45, and the fourth conductors 46 and the vertical axis represents the Q (Quality Factor) value, when the first Q value on the vertical axis at a first value X1 is Y1 and the second Q value on the vertical axis at a second value X2 is Y2, the slope of the graph for (Y2-Y1) / (X2-X1) is negative. With electronic component 1A, such characteristics enable an improvement in the Q value.

[0065] [Third embodiment] Next, a third embodiment will be described. Fig. 9 is a perspective view showing an electronic component according to the third embodiment. As shown in Fig. 9, electronic component 1B includes element body 2, terminal electrodes 60, 61, 62, and 63, and resonator 70.

[0066] Each of the terminal electrodes 60 to 63 is provided on the element body 2. Each of the terminal electrodes 60 to 63 is arranged on the main surface 2d of the element body 2. Each of the terminal electrodes 60 to 63 has a rectangular shape (rectangular shape). The terminal electrode 60 is arranged closer to the end face 2a. The terminal electrode 61 is arranged closer to the end face 2b. The terminal electrode 62 is arranged closer to the side face 2e. The terminal electrode 63 is arranged closer to the side face 2f. The terminal electrodes 62 and 63 extend along the first direction D1.

[0067] The resonator 70 includes a ground conductor 71 , a first conductor 72 , a second conductor 73 , an inductor conductor (connecting conductor) 74 , an inductor conductor (connecting conductor) 75 , a capacitor conductor 76 , and a capacitor conductor 77 .

[0068] The ground conductor 71 is disposed on the principal surface 2d side of the element body 2. The ground conductor 71 has a substantially rectangular shape when viewed from the second direction D2. The ground conductor 71 is electrically connected to the terminal electrode 62 and the terminal electrode 63.

[0069] The first conductor 72 extends along the second direction D2. The first conductor 72 may be composed of a plurality of conductor portions. The first conductor 72 has a first end portion 72A and a second end portion 72B. The first end portion 72A of the first conductor 72 is connected to the inductor conductor 74. The second end portion 72B of the first conductor 72 is connected to the ground conductor 71.

[0070] The second conductor 73 extends along the second direction D2. The second conductor 73 may be composed of a plurality of conductor portions. The second conductor 73 is disposed in a position facing the first conductor 72 in the third direction D3. The first conductor 72 and the second conductor 73 are disposed spaced apart from each other in the first direction D1. The second conductor 73 has a first end portion 73A and a second end portion 73B. The first end portion 73A of the second conductor 73 is connected to the inductor conductor 74. The second end portion 73B of the second conductor 73 is connected to the capacitor conductor 76.

[0071] FIG. 10 is a diagram showing the cross-sectional configuration of the conductors (first conductor 72, second conductor 73). The cross sections of the first conductor 72 and second conductor 73 shown in FIG. 10 are cross sections of a plane along the first direction D1 and the third direction D3. As shown in FIG. 10, when the first conductor 72 and the second conductor 73 are viewed from the second direction D2, the first length L1 in the first direction D1 is longer than the second length L2 in the third direction D3 (L1>L2). In this embodiment, the second length L2 is, for example, 125 μm or less, and preferably 95 μm or less. The second length L2 can be, for example, 35 μm or more.

[0072] The first conductors 72 and the second conductors 73 are arranged such that the first length L1 extends along the third direction D3 and the second length L2 extends along the first direction D1. That is, the extending direction of the first conductors 72 and the second conductors 73 is perpendicular to the direction in which the first conductors 72 and the second conductors 73 are arranged side by side (the third direction D3). "Perpendicular" includes "approximately perpendicular," and can include a range of, for example, about ±3°.

[0073] In this embodiment, the first conductors 72 and the second conductors 73 have a shape in which multiple circles overlap. Specifically, the first conductors 72 and the second conductors 73 have a shape in which a pair of adjacent circles partially overlap. For example, two adjacent circles overlap such that the outer periphery of one circle passes through the center of the other circle. The side surfaces 72S, 73S of the first conductors 72 and the second conductors 73 are curved surfaces. The side surfaces 72S, 73S of the first conductors 72 and the second conductors 73 have multiple recesses 72C, 73C. The recesses 72C, 72C extend in the second direction D2. The recesses 72C, 73C are arranged at a predetermined interval in the first direction D1. The recesses 72C, 73C are arranged at positions facing each other in the third direction D3.

[0074] The inductor conductor 74 constitutes an inductor. In this embodiment, as shown in FIG. 9 , the inductor conductor 74 has a rectangular shape. The inductor conductor 74 extends along the third direction D3. The inductor conductor 74 spans between the first end 72A of the first conductor 72 and the first end 73A of the second conductor 73. The inductor conductor 74 electrically connects the first conductor 72 and the second conductor 73.

[0075] The inductor conductor 75 constitutes an inductor. In this embodiment, the inductor conductor 75 has a rectangular shape. That is, the inductor conductor 75 has the same shape as the inductor conductor 74. The inductor conductor 74 extends along the third direction D3. The inductor conductor 74 is electrically connected to the inductor conductor 74 by a connecting conductor. The inductor conductor 75 is disposed opposite the inductor conductor 74 in the second direction D2. The inductor conductor 75 electrically connects the first conductor 72 and the second conductor 73.

[0076] The capacitor conductor 76 has a rectangular shape when viewed from the second direction D2. The capacitor conductor 76 and the ground conductor 71 form a capacitor. The capacitor conductor 76 is connected to the second end 73B of the second conductor 73. The capacitor conductor 76 is disposed at a predetermined distance from the ground conductor 71 in the second direction D2.

[0077] The capacitor conductor 77 has an L-shape when viewed from the second direction D2. The capacitor conductor 77 is electrically connected to the terminal electrode 60. The capacitor conductor 77 and the terminal electrode 60 are electrically connected by a connection conductor 78. The capacitor conductor 77 is disposed at a predetermined distance from the capacitor conductor 76 in the second direction D2.

[0078] Fig. 11 is a graph showing the relationship between the second length L2 of the first conductors 72 and the second conductors 73 and the Q value. In Fig. 11, the horizontal axis represents the second length L2 [μm] of the first conductors 72 and the second conductors 73, and the vertical axis represents the Q value. Fig. 11 shows the results at a frequency of 13 GHz.

[0079] As shown in FIG. 11 , in electronic component 1B, when the first value on the horizontal axis is X1, the second value on the horizontal axis is X2, the first Q value on the vertical axis at the first value X1 is Y1, and the second Q value on the vertical axis at the second value X2 is Y2, (Y2-Y1) / (X2-X1) In other words, in the electronic component 1B, the first conductors 72 and the second conductors 73 are configured so that the slope of the graph in the above relationship is negative.

[0080] 11 , for electronic component 1B, X1 may be 35 μm, X2 may be 65 μm, Y1 may be 125.6, and Y2 may be 123.8. In this case, the slope of the graph is negative. For electronic component 1B, X1 may be 65 μm, X2 may be 95 μm, Y1 may be 123.8, and Y2 may be 118.7. In this embodiment, the Q value is maximized when second length L2 is 35 μm.

[0081] As described above, in the electronic component 1B according to this embodiment, when viewed from the second direction D2, the first length L1 of the first conductors 72 and the second conductors 73 in the first direction D1 is longer than the second length L2 in the third direction D3 (L1>L2). This allows the electronic component 1B to enlarge the opening formed by the first conductors 72, the second conductors 73, and the inductor conductor 74 while avoiding an increase in the dimension of the element body 2 in the third direction D3. Therefore, the electronic component 1B can increase inductance while achieving miniaturization. In this configuration, in a graph in which the horizontal axis represents the second length L2 of the first conductors 72 and the second conductors 73 and the vertical axis represents the Q (Quality Factor) value, when the first Q value on the vertical axis at a first value X1 is Y1 and the second Q value on the vertical axis at a second value X2 is Y2, the slope of the graph for (Y2-Y1) / (X2-X1) is negative. The electronic component 1B has such characteristics.

[0082] Although the embodiments of the present invention have been described above, the present invention is not necessarily limited to the above-described embodiments, and various modifications are possible without departing from the spirit of the present invention.

[0083] In the first embodiment, an example has been described in which the first length L1 in the first direction D1 of each of the first conductors 13 and the second conductors 14 is longer than the second length L2 in the third direction D3 (L1>L2) when viewed from the second direction D2. However, it is sufficient if the first length L1 in the first direction D1 of at least one of the first conductors 13 and the second conductors 14 is longer than the second length L2 in the third direction D3 when viewed from the second direction D2. The same applies to the first conductors 43, the second conductors 44, the third conductors 45, and the fourth conductors 46 of the second embodiment, and the first conductors 72 and the second conductors 73 of the third embodiment.

[0084] In the first embodiment, the first conductors 13 and the second conductors 14 have a shape in which a plurality of overlapping circles are formed, and have depressions 13C and 14C. However, the shapes of the first conductors 13 and the second conductors 14 are not limited to this. The first conductors 13 and the second conductors 14 may have, for example, a rectangular shape or an elliptical shape. The same applies to the second and third embodiments.

[0085] In the above embodiment, the configuration of the terminal electrodes (terminal conductors) is not limited.

[0086] In another aspect, the present invention provides an electronic component comprising: an element body formed by stacking a plurality of insulator layers; and a resonator disposed within the element body, wherein the resonator has two conductors extending in a stacking direction of the plurality of insulator layers; and a connecting conductor connecting the two conductors; and wherein, in at least one of the two conductors, when the conductor is viewed from the stacking direction, a first length in a direction perpendicular to the opposing direction of the two conductors is longer than a second length in the opposing direction; and in a graph in which the horizontal axis represents the width dimension in the opposing direction of the two conductors and the vertical axis represents a Q value, when a first value on the vertical axis is X1, a second value on the vertical axis is X2, a first Q value on the vertical axis at the first value X1 is Y1, and a second Q value on the vertical axis at the second value X2 is Y2, the value of (Y2-Y1) / (X2-X1) is negative.

[0087] In the electronic component, at least one of the two conductors has a first length in a direction perpendicular to the opposing direction of the two conductors when viewed from the stacking direction, which is longer than a second length in the opposing direction. This allows the opening formed by the two conductors and the connecting conductor to be enlarged while avoiding an increase in the dimension of the element body in the opposing direction. Therefore, the electronic component can be miniaturized while increasing inductance. In this configuration, in a graph where the horizontal axis represents the width of the two conductors in the opposing direction and the vertical axis represents the Q (Quality Factor) value, if the first Q value on the vertical axis at a first value X1 is Y1 and the second Q value on the vertical axis at a second value X2 is Y2, the slope of the graph (Y2-Y1) / (X2-X1) is negative. By possessing such characteristics, the electronic component can achieve an improved Q value. [Explanation of symbols]

[0088] 1, 1A, 1B...electronic component, 2...element body, 3, 40, 70...resonator, 13...first conductor, 14...second conductor, 13S, 14S, 43S, 44S, 45S, 46S, 72S, 73S...side surface, 13C, 14C, 43C, 44C, 45C, 46C, 72C, 73C...recess, 15, 16...inductor conductor (connecting conductor), 43...first conductor, 44...second conductor, 45...third conductor, 46...fourth conductor, 47...first inductor conductor (connecting conductor), 48...second inductor conductor (connecting conductor), 72...first conductor, 73...second conductor, 74...inductor conductor (connecting conductor), 75...inductor conductor (connecting conductor).

Claims

1. an element body formed by laminating a plurality of insulating layers; a resonator disposed within the element body, the resonator includes two conductors extending in a stacking direction of the plurality of insulator layers and a connection conductor connecting the two conductors, In at least one of the two conductors, when the conductor is viewed from the stacking direction, a first length in a direction perpendicular to the opposing direction of the two conductors is longer than a second length in the opposing direction; An electronic component, wherein in a graph in which the horizontal axis represents the value of the second length of the connecting conductor and the vertical axis represents a Q value, when a first value on the horizontal axis is X1, a second value on the horizontal axis is X2, a first Q value on the vertical axis at the first value X1 is Y1, and a second Q value on the vertical axis at the second value X2 is Y2, the slope of the graph in (Y2-Y1) / (X2-X1) is negative.

2. The electronic component according to claim 1 , wherein the second length of the connecting conductor is 125 μm or less.

3. A plurality of recesses are provided on the side surface of the conductor, The electronic component according to claim 1 , wherein the plurality of recesses are arranged opposite each other in the opposing direction and extend in the stacking direction.

4. Each of the two conductors has a first length greater than a second length; The electronic component according to claim 1 or 2, wherein the first length and the second length of the two conductors are the same.

5. 3. The electronic component according to claim 1, wherein the direction perpendicular to the opposing direction of the two conductors when viewed from the stacking direction is along the longitudinal direction of the element body.

6. The electronic component according to claim 1 , wherein the resonator includes a plurality of pairs of the two conductors and the connecting conductor.

7. an element body formed by laminating a plurality of insulating layers; a resonator disposed within the element body, the resonator includes two conductors extending in a stacking direction of the plurality of insulator layers and a connection conductor connecting the two conductors, In at least one of the two conductors, when the conductor is viewed from the stacking direction, a first length in a direction perpendicular to the opposing direction of the two conductors is longer than a second length in the opposing direction; In a graph in which the horizontal axis represents the width dimension of the two conductors in the opposing direction and the vertical axis represents the Q value, when a first value on the horizontal axis is X1, a second value on the vertical axis is X2, a first Q value on the vertical axis at the first value X1 is Y1, and a second Q value on the vertical axis at the second value X2 is Y2, the value of (Y2-Y1) / (X2-X1) is negative.

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