Electronic components

Abstract

The coil component (1) of the present invention comprises: an element body (2), a first terminal electrode (3) and a second terminal electrode (4), a first conductor (6) arranged in the element body near a main surface (2c) and electrically connected to the first terminal electrode (3) and the second terminal electrode (4), and a second conductor (7) arranged in the element body (2) near a main surface (2d) and electrically connected to the first terminal electrode (3) and the second terminal electrode (4), wherein the element body (2) is formed of a light-transmitting material, and in the first conductor (6), an identification portion (13) formed of a material different from that of the first conductor (6) is provided on a first surface (6A) facing the main surface (2c).

Description

Technical Field

[0001] The present disclosure relates to electronic components. Background Art

[0002] Patent document 1 (Japanese Patent Publication No. 2015-141945) discloses an electronic component including an insulator made of resin, a coil disposed in the insulator, and a terminal electrode electrically connected to the coil and arranged on a mounting surface of the element body. The coil includes a first conductor, a second conductor, and a connection portion connecting the first conductor and the second conductor.

[0003] In the above-mentioned electronic components, it is difficult to distinguish the surface other than the mounting surface of the element body where the terminal electrodes are arranged at first glance. In particular, it is difficult to distinguish the side surface and the main surface (the surface opposite to the mounting surface) of the element body in the electronic component. Therefore, it is difficult to identify the direction in the electronic component. Summary of the invention

[0004] An object of one aspect of the present disclosure is to provide an electronic component capable of identifying a direction.

[0005] (1) One aspect of the present disclosure provides an electronic component comprising: a body formed by stacking a plurality of insulating layers, the body comprising a mounting surface and a main surface opposite to the mounting surface; a pair of terminal electrodes arranged on the mounting surface of the body; a first conductor arranged in the body near the main surface and electrically connected to the pair of terminal electrodes; and a second conductor arranged in the body near the mounting surface and electrically connected to the pair of terminal electrodes, wherein the body is formed of a light-transmitting material, and in the first conductor, an identification portion formed of a material different from that of the first conductor is provided on a surface facing the main surface.

[0006] In an electronic component of one aspect of the present disclosure, the element body is formed of a material having light transmittance. In this structure, on the first conductor, an identification portion formed of a material different from the first conductor is provided on the surface facing the main surface. Thus, in the electronic component, when observing the element body, the first conductor and the identification portion can be distinguished, and thus the identification portion can be identified. Therefore, in the electronic component, since the first conductor can be identified by the identification portion, the orientation (position) of the first conductor can be identified. Therefore, in the electronic component, the direction (orientation) of the electronic component can be identified.

[0007] (2) In the electronic component of (1) above, the material forming the identification portion may have a higher light reflectivity than the material forming the first conductor. In this structure, the identification portion can be more easily recognized because of the different light reflectivities between the first conductor and the identification portion.

[0008] (3) In the electronic component of (1) or (2) above, the first conductor may be formed of a material mainly composed of Cu, and the identification portion may be formed of a material mainly composed of Cr, Ti or NiCr. In this structure, since the first conductor and the identification portion are formed of different materials, the first conductor and the identification portion can be distinguished.

[0009] (4) In any of the electronic components of (1) to (3) above, a connecting conductor may be provided, which is arranged in the element body, extends in the relative direction between the mounting surface and the main surface, and connects the first conductor to the second conductor. In this structure, the first conductor, the second conductor, and the connecting conductor constitute a coil.

[0010] (5) In the electronic component of any one of (1) to (4) above, the pair of terminal electrodes may be embedded in the element body, and the surface of the pair of terminal electrodes may not protrude from the mounting surface. In this way, in the structure in which the pair of terminal electrodes are embedded in the element body, the terminal electrodes become difficult to identify, and therefore, it is difficult to identify the direction of the electronic component at first glance. Therefore, the above structure is particularly effective for the structure in which the pair of terminal electrodes are embedded in the element body.

[0011] (6) One aspect of the present disclosure provides an electronic component, comprising: a body formed by stacking a plurality of insulating layers, the body comprising a mounting surface and a main surface opposite to the mounting surface; a pair of terminal electrodes arranged on the mounting surface of the body; a first conductor arranged in the body near the main surface; and a second conductor arranged in the body near the mounting surface, wherein the body is formed of a light-transmitting material, and a distance between the first conductor and the main surface is shorter than a distance between the second conductor and the mounting surface.

[0012] In an electronic component of one aspect of the present disclosure, the element body is formed of a material having light transmittance. In this structure, the distance between the first conductor and the main surface is shorter than the distance between the second conductor and the mounting surface. Thus, in the electronic component, when observing the element body, the first conductor is easier to identify than the second conductor, and thus the first conductor can be identified. Therefore, in the electronic component, the orientation (position) of the first conductor can be identified. Therefore, in the electronic component, the direction (orientation) of the electronic component can be identified.

[0013] (7) In the electronic component of (6) above, the first conductor may not be electrically connected to a pair of terminal electrodes, and the second conductor may be electrically connected to a pair of terminal electrodes. The first conductor is a so-called dummy conductor. In this structure, even in the case where the inductor is constituted by only the second conductor, the first conductor can be identified by having the first conductor as a dummy conductor. Therefore, in the electronic component, the orientation (position) of the first conductor can be identified. Therefore, in the electronic component, the direction (orientation) of the electronic component can be identified.

[0014] (8) In the electronic component of (6) or (7) above, the first conductor and the second conductor may be formed of a material containing Cu as a main component.

[0015] (9) In the electronic component of (6) above, a connecting conductor may be provided, which is arranged in the element body, extends in the relative direction between the mounting surface and the main surface, and connects the first conductor and the second conductor. In this structure, the first conductor, the second conductor and the connecting conductor constitute a coil.

[0016] (10) In the electronic components of (6) to (9) above, the pair of terminal electrodes may be embedded in the element body, and the surface of the pair of terminal electrodes may not protrude from the mounting surface. In this way, in the structure in which the pair of terminal electrodes are embedded in the element body, the terminal electrodes become difficult to identify, and therefore, it is difficult to identify the direction of the electronic component at first glance. Therefore, the above structure is particularly effective for the structure in which the pair of terminal electrodes are embedded in the element body.

[0017] According to an aspect of the present disclosure, a direction of an electronic component can be identified. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a perspective view of the electronic component according to the first embodiment.

[0019] Figure 2 Observed from the side Figure 1 A diagram of the electronic components shown.

[0020] Figure 3 Viewed from the main side Figure 1 A diagram of the electronic components shown.

[0021] Figure 4 This is a diagram showing an enlarged portion of the first conductor.

[0022] Figure 5 It is a perspective view of the electronic component according to the second embodiment.

[0023] Figure 6 Observed from the side Figure 5 A diagram of the electronic components shown.

[0024] Figure 7 Viewed from the main side Figure 5 A diagram of the electronic components shown.

[0025] Figure 8 This is a diagram showing an enlarged portion of the first conductor. DETAILED DESCRIPTION

[0026] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same or corresponding elements are denoted by the same reference numerals, and repeated descriptions are omitted.

[0027] [First embodiment]

[0028] The electronic component according to the first embodiment will be described. Figure 1 It is a perspective view of the electronic component according to the first embodiment. Figure 2 Observed from the side Figure 1 A diagram of the electronic components shown. Figure 3 Viewed from the main side Figure 1 The electronic components shown in FIG. Figure 1 to Figure 3 As shown, the coil component (electronic component) 1 includes an element body 2 , a first terminal electrode 3 and a second terminal electrode 4 , a coil 5 , and a first connection conductor 10 and a second connection conductor 11 .

[0029] The element body 2 is in the shape of a rectangular parallelepiped. The rectangular parallelepiped shape includes the shape of a rectangular parallelepiped with chamfered corners and ridges, and the shape of a rectangular parallelepiped with rounded corners and ridges. The element body 2 has a pair of end faces 2a, 2b, a pair of main faces 2c, 2d, and a pair of side faces 2e, 2f as outer surfaces. The end faces 2a, 2b are opposite to each other. The main faces 2c, 2d are opposite to each other. The side faces 2e, 2f are opposite to each other. Hereinafter, the relative direction of the end faces 2a, 2b is referred to as the first direction D1, the relative direction of the main faces 2c, 2d is referred to as the second direction D2, and the relative direction of the side faces 2e, 2f is referred to as the third direction D3. The first direction D1, the second direction D2, and the third direction D3 are substantially orthogonal to each other.

[0030] The end surfaces 2a and 2b extend in the second direction D2 so as to connect the main surfaces 2c and 2d. The end surfaces 2a and 2b also extend in the third direction D3 so as to connect the side surfaces 2e and 2f. The main surfaces 2c and 2d extend in the first direction D1 so as to connect the end surfaces 2a and 2b. The main surfaces 2c and 2d also extend in the third direction D3 so as to connect the side surfaces 2e and 2f. The side surfaces 2e and 2f extend in the first direction D1 so as to connect the end surfaces 2a and 2b. The side surfaces 2e and 2f also extend in the second direction D2 so as to connect the main surfaces 2c and 2d.

[0031] The main surface 2d is a mounting surface, which faces other electronic devices (eg, circuit substrates or electronic components) when the coil component 1 is mounted on other electronic devices (eg, circuit substrates or electronic components) not shown. The end surfaces 2a and 2b are surfaces continuous from the mounting surface (ie, the main surface 2d).

[0032] exist Figure 1 to Figure 3In the case of the embodiment shown in the figure, 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 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 the present embodiment, the end faces 2a, 2b, the main faces 2c, 2d and the side faces 2e, 2f are rectangular. 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.

[0033] In this embodiment, “equivalent” may not only mean equal, but also mean a value including a slight difference or manufacturing error within a predetermined range. For example, if multiple values ​​fall within a range of ±5% of the average value of the multiple values, the multiple values ​​are defined as equivalent.

[0034] The element body 2 is formed by stacking a plurality of element body layers (insulating layers) in the second direction D2. That is, the stacking direction of the element body 2 is the second direction D2. In the actual element body 2, the plurality of element body layers may be integrated to such an extent that the boundaries between the layers are unrecognizable, or may be integrated to such an extent that the boundaries between the layers are recognizable.

[0035] The element body 2 has visible light transmittance (transparency). The element body 2 has a predetermined light transmittance. The element body 2 is formed of a transmissive material. The element body layer constituting the element body 2 may be, for example, a resin layer. The material of the element body layer may include, for example, at least one selected from liquid crystal polymers, polyimide resins, crystalline polystyrene, epoxy resins, acrylic resins, bismaleimide resins, and fluororesins. The element body layer may also contain a filler. The filler may be, for example, an inorganic filler. As an inorganic filler, for example, silicon dioxide (SiO2) may be cited. In addition, the element body layer may not contain a filler.

[0036] In addition, the ferrite layer may also be composed of a magnetic material. The magnetic material of the ferrite layer may include, for example, a Ni-Cu-Zn ferrite material, a Ni-Cu-Zn-Mg ferrite material, or a Ni-Cu ferrite material. The magnetic material of the ferrite layer may also include, for example, an Fe alloy. The ferrite layer may also include, for example, a non-magnetic material. The non-magnetic material of the ferrite layer may include, for example, a glass ceramic material or a dielectric material.

[0037] The first terminal electrode 3 and the second terminal electrode 4 are respectively provided on the element body 2. The first terminal electrode 3 and the second terminal electrode 4 are respectively arranged on the main surface 2d of the element body 2. The first terminal electrode 3 and the second terminal electrode 4 are respectively arranged on the element body 2 separated from each other in the first direction D1. Specifically, the first terminal electrode 3 is arranged on the end surface 2a side of the element body 2. The second terminal electrode 4 is arranged on the end surface 2b side of the element body 2.

[0038] The first terminal electrode 3 and the second terminal electrode 4 may also be rectangular, for example. The first terminal electrode 3 and the second terminal electrode 4 are arranged so that each side is along the first direction D1 or the third direction D3. Figure 2 As shown, the surfaces of the first terminal electrode 3 and the second terminal electrode 4 are flush with the main surface 2d. That is, in this embodiment, the first terminal electrode 3 and the second terminal electrode 4 do not protrude from the main surface 2d. The first terminal electrode 3 and the second terminal electrode 4 are formed of a conductive material (eg, Cu).

[0039] A plating layer (not shown) containing, for example, Ni, Sn, Au, etc. may be provided by performing electrolytic plating or electroless plating on the first terminal electrode 3 and the second terminal electrode 4, respectively. The plating layer may also include, for example, a Ni-plated film containing Ni and covering the first terminal electrode 3 and the second terminal electrode 4; and an Au-plated film containing Au and covering the Ni-plated film.

[0040] like Figure 1 to Figure 3 As shown, the coil 5 is arranged in the element body 2. The coil 5 has a plurality of first conductors 6, a plurality of second conductors 7, and a plurality of pillars (connecting conductors) 8. The coil 5 is formed by electrically connecting the first conductors 6, the second conductors 7, and the pillars 8. The coil axis of the coil 5 is set along the third direction D3. The plurality of first conductors 6, the plurality of second conductors 7, and the plurality of pillars 8 are formed of a conductive material. In the present embodiment, the plurality of first conductors 6, the plurality of second conductors 7, and the plurality of pillars 8 are formed of a material with Cu as a main component. The first conductor 6, the second conductor 7, and the pillars 8 are arranged to be separated from the end faces 2a, 2b, the main faces 2c, 2d, and the side faces 2e, 2f.

[0041] The first conductors 6 are respectively arranged at positions close to the main surface 2c of the element body 2. The first conductors 6 extend respectively along the first direction D1. The first conductors 6 connect the two pillars 8 respectively. The first conductors 6 are mounted on the two pillars 8. In the present embodiment, the first conductor 6 is prism-shaped. The cross-sectional shape of the first conductor 6 is rectangular. One end of the first conductor 6 in the extension direction (the end on the end surface 2a side) is connected to one end of the pillar 8 (the end on the main surface 2c side). The other end of the first conductor 6 in the extension direction (the end on the end surface 2b side) is connected to one end of the pillar 8 (the end on the main surface 2c side).

[0042] The second conductors 7 are respectively arranged at positions close to the main surface 2d (mounting surface) of the element body 2. The second conductors 7 extend in the first direction D1. The second conductors 7 connect the two pillars 8 respectively. The second conductors 7 are mounted on the two pillars 8. In the present embodiment, the second conductor 7 is prism-shaped. The cross-sectional shape of the second conductor 7 is rectangular. One end of the second conductor 7 in the extension direction (the end on the end face 2a side) is connected to the other end of the pillar 8 (the end on the main surface 2d side). The other end of the second conductor 7 in the extension direction (the end on the end face 2b side) is connected to the other end of the pillar 8 (the end on the main surface 2d side). The number of the plurality of second conductors 7 is one less than the number of the plurality of first conductors 6. That is, when the number of the first conductors 6 is n, the number of the second conductors 7 is n-1.

[0043] The columns 8 extend along the second direction D2, respectively. The columns 8 connect the first conductor 6 and the second conductor 7. In the present embodiment, the columns 8 are prismatic. The cross-sectional shape of the columns 8 (in the direction orthogonal to the second direction D2) is rectangular. The columns 8 can be formed by stacking a plurality of column materials in the second direction D2. One end of the column 8 is connected to the end of the first conductor 6. The other end of the column 8 is connected to the end of the second conductor 7.

[0044] The first connection conductor 10 connects the first terminal electrode 3 and one end of the coil 5. The first connection conductor 10 is connected to the other end of the column 8 of the coil 5. The first connection conductor 10 is arranged near the end surface 2a and near the side surface 2e. The first connection conductor 10 is made of a conductive material. The first connection conductor 10 is formed of Cu, for example.

[0045] The second connection conductor 11 connects the second terminal electrode 4 and the other end of the coil 5. The second connection conductor 11 is connected to the other end of the column 8 of the coil 5. The second connection conductor 11 is arranged near the end surface 2b and near the side surface 2f. The second connection conductor 11 is made of a conductive material. The second connection conductor 11 is formed of Cu, for example.

[0046] Figure 4 FIG. 2 is an enlarged view showing a portion of the first conductor 6. Figure 4 As shown, the first conductor 6 has a first surface 6A and a second surface 6B. The first surface 6A and the second surface 6B are opposite to each other in the second direction D2. The first surface 6A is a surface facing the main surface 2c (a surface facing the main surface 2c side). The first surface 6A is a surface closer to the main surface 2c than the second surface 6B in the second direction D2. The second surface 6B is a surface facing the main surface 2d (a surface facing the main surface 2d side). The second surface 6B is a surface closer to the main surface 2d than the first surface 6A in the second direction D2.

[0047] An identification portion 13 is provided on the first surface 6A of the first conductor 6. In the present embodiment, the identification portion 13 is disposed over the entire surface of the first surface 6A. The thickness of the identification portion 13 (dimension in the second direction D2) is smaller than the thickness of the first conductor 6. The identification portion 13 is formed of a material different from that of the first conductor 6. The identification portion 13 is formed of a material having a higher light reflectance than the material forming the first conductor 6. That is, in the present embodiment, the identification portion 13 is formed of a material having a higher light reflectance than Cu. The identification portion 13 is formed of, for example, Cr, Ti, or NiCr.

[0048] As Figure 2 shown, the distance L1 between the first conductor 6 and the main surface 2c of the base body 2 is shorter than the distance L2 between the second conductor 7 and the main surface 2d of the base body 2 (L1 < L2). The distance L1 is set to a distance at which visible light incident from the main surface 2c of the base body 2 can reach the identification portion 13. The distance L1 is set to, for example, 1 μm to 30 μm.

[0049] As described above, in the coil component 1 of the present embodiment, the base body 2 is formed of a light-transmissive material. In this structure, on the first conductor 6, an identification portion 13 formed of a material different from that of the first conductor 6 and the second conductor 7 is provided on the first surface 6A facing the main surface 2c. Thus, in the coil component 1, when observing the base body 2, the first conductor 6, the second conductor 7, and the identification portion 13 can be distinguished, and thus, the identification portion 13 can be identified. Therefore, in the coil component 1, since the first conductor 6 can be identified by the identification portion 13, the orientation (position) of the first conductor 6 can be identified. Therefore, in the coil component 1, the direction (orientation) of the coil component 1 can be identified.

[0050] In the coil component 1 of the present embodiment, the light reflectance of the material forming the identification portion 13 is higher than that of the materials forming the first conductor 6 and the second conductor 7. Specifically, the first conductor 6 and the second conductor 7 are formed of a material mainly composed of Cu, and the identification portion 13 is formed of a material mainly composed of Cr, Ti, or NiCr. In this structure, since the light reflectances of the first conductor 6 and the second conductor 7 and the identification portion 13 are different, the identification portion 13 can be more easily identified.

[0051] In the coil component 1 of the present embodiment, the first terminal electrode 3 and the second terminal electrode 4 are buried in the base body 2. The surfaces of the first terminal electrode 3 and the second terminal electrode 4 do not protrude from the main surface 2d of the base body 2. Thus, in the structure in which the first terminal electrode 3 and the second terminal electrode 4 are buried in the base body 2, the first terminal electrode 3 and the second terminal electrode 4 are difficult to identify, and thus, at first glance, it is difficult to identify the direction of the coil component 1. Therefore, the above structure is particularly effective in the structure in which the first terminal electrode 3 and the second terminal electrode 4 are buried in the base body 2.

[0052] In the coil component 1 of the present embodiment, the distance L1 between the first conductor 6 and the main surface 2c is shorter than the distance L2 between the second conductor 7 and the main surface 2d. Thus, in the coil component 1, when observing the element body 2, the identification portion 13 provided on the first conductor 6 is easier to identify than the second conductor 7, and thus the identification portion 13 (first conductor 6) can be identified. Therefore, in the coil component 1, the orientation (position) of the first conductor 6 can be identified. Therefore, in the coil component 1, the direction (orientation) of the coil component 1 can be identified.

[0053] When the coil component 1 is manufactured, the laminate is cut and monolithicized. At this time, due to the offset of the cutting position of the laminate, the internal conductor is sometimes exposed in the monolithic laminate. Therefore, after the coil component 1 is manufactured, it is checked whether the internal conductor arranged in the element body 2 is exposed from the element body 2. As an inspection method, the appearance of the coil component 1 is confirmed, and the exposure of the first conductor 6 from the element body 2 is checked. In the coil component 1 of the present embodiment, an identification portion 13 is provided on the first surface 6A of the first conductor 6. Since the first conductor 6 and the identification portion 13 can be distinguished, when the laminate (element body 2) is cut off due to the offset of the cutting position, it is possible to confirm whether the first conductor 6 is exposed by confirming whether the identification portion 13 is exposed or the first conductor 6 is exposed.

[0054] [Second Embodiment]

[0055] Next, an electronic component according to a second embodiment will be described. Figure 5 It is a perspective view of the electronic component according to the second embodiment. Figure 6 Observed from the side Figure 5 A diagram of the electronic components shown. Figure 7 Viewed from the main side Figure 5 The electronic components shown in FIG. Figure 5 to Figure 7 As shown, the coil component (electronic component) 1A includes an element body 2 , a first terminal electrode 3 , a second terminal electrode 4 , a first conductor 15 , a second conductor 16 , a first connection conductor 17 , and a second connection conductor 18 .

[0056] The first conductor 15 and the second conductor 16 are formed of a conductive material. In this embodiment, the first conductor 15 and the second conductor 16 are formed of a material mainly composed of Cu. The first conductor 15 and the second conductor 16 are arranged to be separated from the end faces 2a, 2b, the main faces 2c, 2d, and the side faces 2e, 2f.

[0057] The first conductor 15 is arranged at a position close to the main surface 2c of the element body 2. The first conductor 15 extends along the first direction D1. In the present embodiment, the first conductor 15 is prism-shaped. The cross-sectional shape of the first conductor 15 is rectangular. The first conductor 15 is not electrically connected to the first terminal electrode 3 and the second terminal electrode 4. That is, the first conductor 15 is a so-called dummy electrode.

[0058] The second conductor 16 is arranged at a position close to the main surface 2d (mounting surface) of the element body 2. The second conductor 16 extends in the first direction D1. In the present embodiment, the second conductor 7 is prism-shaped. The cross-sectional shape of the second conductor 7 is rectangular. In the present embodiment, the second conductor 16 has the same shape and size as the first conductor 15. The second conductor 16 is arranged at a position opposite to the first conductor 15 in the second direction D2. When viewed from the second direction D2, the second conductor 16 is arranged at a position overlapping with the first conductor 15.

[0059] The first connection conductor 17 connects the first terminal electrode 3 and the second conductor 16. The first connection conductor 17 is connected to one end of the second conductor 16. The first connection conductor 17 is arranged near the end surface 2a. The first connection conductor 17 is made of a conductive material. The first connection conductor 17 is made of Cu, for example.

[0060] The second connection conductor 18 connects the second terminal electrode 4 and the second conductor 16. The second connection conductor 18 is connected to the other end of the second conductor 16. The second connection conductor 18 is arranged near the end surface 2b. The second connection conductor 18 is made of a conductive material. The second connection conductor 18 is made of Cu, for example.

[0061] Figure 8 FIG. 1 is an enlarged view showing a portion of the first conductor 15. Figure 8 As shown, the first conductor 15 has a first surface 15A and a second surface 15B. The first surface 15A and the second surface 15B are opposite to each other in the second direction D2. The first surface 15A is a surface facing the main surface 2c (a surface facing the main surface 2c side). The first surface 15A is a surface closer to the main surface 2c than the second surface 15B in the second direction D2. The second surface 15B is a surface facing the main surface 2d (a surface facing the main surface 2d side). The second surface 15B is a surface closer to the main surface 2d than the first surface 15A in the second direction D2.

[0062] An identification portion 19 is provided on the first surface 15A of the first conductor 15. In the present embodiment, the identification portion 19 is arranged on the entire surface of the first surface 15A. The thickness of the identification portion 19 (the dimension in the second direction D2) is smaller than the thickness of the first conductor 15. The identification portion 19 is formed of a material different from that of the first conductor 15. The identification portion 19 is formed of a material having a higher light reflectivity than the material forming the first conductor 15. That is, in the present embodiment, the identification portion 19 is formed of a material having a higher light reflectivity than Cu. The identification portion 19 is formed of, for example, Cr, Ti, or NiCr.

[0063] like Figure 6As shown, the distance L11 between the first conductor 15 and the main surface 2c of the base body 2 is shorter than the distance L12 between the second conductor 16 and the main surface 2d of the base body 2 (L11 < L12). The distance L11 is set to a distance at which visible light incident from the main surface 2c of the base body 2 can reach the identification portion 19. The distance L11 is, for example, set to 1 μm to 30 μm.

[0064] As described above, in the coil component 1A of the present embodiment, the base body 2 is formed of a light-transmissive material. In this structure, on the first conductor 15, an identification portion 19 formed of a material different from that of the first conductor 15 and the second conductor 16 is provided on the first surface 15A facing the main surface 2c. Thus, in the coil component 1A, when observing the base body 2, the first conductor 15, the second conductor 16, and the identification portion 19 can be distinguished, and thus, the identification portion 19 can be identified. Therefore, in the coil component 1A, since the first conductor 15 can be identified by the identification portion 19, the orientation (position) of the first conductor 15 can be identified. Therefore, in the coil component 1A, the direction (orientation) of the coil component 1A can be identified.

[0065] In the coil component 1A of the present embodiment, the light reflectance of the material forming the identification portion 19 is higher than that of the materials forming the first conductor 15 and the second conductor 16. Specifically, the first conductor 15 and the second conductor 16 are formed of a material mainly composed of Cu, and the identification portion 19 is formed of a material mainly composed of Cr, Ti, or NiCr. In this structure, since the light reflectances of the first conductor 15, the second conductor 16, and the identification portion 19 are different, the identification portion 19 can be more easily identified.

[0066] In the coil component 1A of the present embodiment, the distance L11 between the first conductor 15 and the main surface 2c is shorter than the distance L12 between the second conductor 16 and the main surface 2d. Thus, in the coil component 1A, when observing the base body 2, the identification portion 19 provided on the first conductor 15 is more easily recognizable than the second conductor 16, and thus, the identification portion 19 (the first conductor 15) can be identified. Therefore, in the coil component 1A, the orientation (position) of the first conductor 15 can be identified. Therefore, in the coil component 1A, the direction (orientation) of the coil component 1A can be identified.

[0067] In the coil component 1A of the present embodiment, the first conductor 15 is not electrically connected to the first terminal electrode 3 and the second terminal electrode 4, and the second conductor 16 is electrically connected to the first terminal electrode 3 and the second terminal electrode 4. The first conductor 15 is a so-called dummy conductor. In this structure, even in the case where the inductor is constituted by only the second conductor 16, the first conductor 15 can be identified by having the first conductor 15 as a dummy conductor. Therefore, in the coil component 1A, the direction (position) of the first conductor 15 can be identified. Therefore, in the coil component 1A, the direction (orientation) of the coil component 1A can be identified.

[0068] As mentioned above, although embodiment of this disclosure was described, this disclosure is not necessarily limited to the said embodiment, Various changes can be made within the range which does not deviate from the summary.

[0069] In the above-mentioned embodiment, the method in which the identification parts 13 and 19 are provided on the first surfaces 6A and 15A of the first conductors 6 and 15 is used as an example for explanation. However, the identification parts 13 and 19 may not be provided. In this case, as long as the distances L1 and L11 between the first conductors 6 and 15 and the main surface 2c of the element body 2 are shorter than the distances L2 and L12 between the second conductors 7 and 16 and the main surface 2d of the element body 2. In this structure, when observing the element body 2, the identification parts 13 and 19 provided on the first conductors 6 and 15 are easier to identify than the second conductors 7 and 16, and therefore, the identification parts 13 and 19 (first conductors 6 and 15) can be identified. Therefore, the orientation (position) of the first conductors 6 and 15 can be identified. Therefore, the direction (direction) of the coil component can be identified.

[0070] In the above embodiment, the identification portion 13, 19 is provided on the entire surface of the first surface 6A, 15A of the first conductor 6, 15. However, the identification portion 13, 19 may be provided on a portion of the first surface 6A, 15A of the first conductor 6, 15.

[0071] In the second embodiment, the first conductor 15 is not electrically connected to the first terminal electrode 3 and the second terminal electrode 4. That is, the first conductor 15 is a dummy conductor. However, the first conductor 15 may be electrically connected to the first terminal electrode 3 and the second terminal electrode 4.

[0072] In the second embodiment described above, an example in which there is one first conductor 15 and one second conductor 16 is described. However, a plurality of first conductors 15 and a plurality of second conductors 16 may be provided.

[0073] In the above embodiment, the first terminal electrode 3 and the second terminal electrode 4 are embedded in the element body 2 as an example. However, the first terminal electrode 3 and the second terminal electrode 4 may be arranged on the main surface 2 d of the element body 2 .

[0074] In the above-mentioned embodiment, the number of the first conductor, the second conductor and the pillar is not limited to the above-mentioned value. In addition, the shapes of the first conductor, the second conductor and the pillar are not limited to the above-mentioned shapes.

Claims

1. An electronic component, wherein: have: A body formed by laminating a plurality of insulating layers, comprising a mounting surface and a main surface opposite to the mounting surface; a pair of terminal electrodes disposed on the mounting surface of the element body; A first conductor is arranged in the element body at a position close to the main surface and is electrically connected to the pair of terminal electrodes; as well as a second conductor disposed in the element body at a position close to the mounting surface and electrically connected to the pair of terminal electrodes; The element body is formed of a light-transmitting material. In the first conductor, an identification portion formed of a material different from that of the first conductor is provided on a surface facing the main surface.

2. The electronic component according to claim 1, wherein The material forming the identification portion has a higher light reflectivity than the material forming the first conductor.

3. The electronic component according to claim 1 or 2, wherein: The first conductor is formed of a material mainly composed of Cu. The identification portion is formed of a material containing Cr, Ti or NiCr as a main component.

4. The electronic component according to claim 1 or 2, wherein: A connection conductor is provided, which is arranged in the element body, extends in the opposing direction of the mounting surface and the main surface, and connects the first conductor and the second conductor.

5. The electronic component according to claim 1 or 2, wherein: A pair of terminal electrodes are embedded in the element body. Surfaces of the pair of terminal electrodes do not protrude from the mounting surface.

6. An electronic component, wherein: have: A body formed by laminating a plurality of insulating layers, comprising a mounting surface and a main surface opposite to the mounting surface; a pair of terminal electrodes disposed on the mounting surface of the element body; A first conductor is disposed in the element body at a position close to the main surface; as well as The second conductor is arranged in the element body at a position close to the mounting surface, The element body is formed of a light-transmitting material. A distance between the first conductor and the main surface is shorter than a distance between the second conductor and the mounting surface.

7. The electronic component according to claim 6, wherein The first conductor is not electrically connected to the pair of terminal electrodes, The second conductor is electrically connected to the pair of terminal electrodes.

8. The electronic component according to claim 6 or 7, wherein: The first conductor and the second conductor are formed of a material containing Cu as a main component.

9. The electronic component according to claim 6, wherein A connection conductor is provided, which is arranged in the element body, extends in the opposing direction of the mounting surface and the main surface, and connects the first conductor and the second conductor.

10. The electronic component according to claim 6 or 7, wherein: A pair of terminal electrodes are embedded in the element body. Surfaces of the pair of terminal electrodes do not protrude from the mounting surface.

Images