JP2024024438A - Electronic component - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic component capable of increasing the inductance of a resonator.

SOLUTION: An electronic component 1 includes an element 2, a ground conductor 10 arranged in the element 2, and a resonator 6 arranged in the element 2. The resonator 6 has a first conductor 11, a second conductor 12, and an inductor conductor 13. The ground conductor 10 is provided with apertures 10A, 10B. The inductor conductor 13 is arranged at a position overlapping the apertures 10A, 10B of the ground conductor 10 when viewed from one direction.

SELECTED DRAWING: Figure 2

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to electronic components.

Patent Document 1 discloses a laminate of a plurality of dielectric layers and a plurality of electrode layers, and the plurality of electrode layers include a first capacitor electrode, a second capacitor electrode facing the first capacitor electrode, and a second capacitor electrode facing the first capacitor electrode. The inductor electrode is configured such that a first end is connected to one capacitor electrode, a second end is connected to a second capacitor electrode, and a loop is formed with the first end as a starting point and the second end as an ending point. , an LC parallel resonator consisting of a line electrode formed along a dielectric layer and a via electrode extending in the stacking direction of the dielectric layer, and a first capacitor electrode, a second capacitor electrode, and an inductor electrode. A multilayer bandpass filter having a plurality of two or more layers is disclosed. In the laminated bandpass filter described in Patent Document 1, the inductor electrodes of the plurality of LC parallel resonators are arranged such that the loop surfaces of the inductor electrodes are radial from the central axis extending in the lamination direction of the dielectric layers, and the input The inductor electrode of the LC parallel resonator of the stage and the inductor electrode of the LC parallel resonator of the output stage are adjacent to each other.

International Publication No. 2012/066873

In electronic components, it is necessary to design a resonator with high inductance in order to improve spurious effects.

One aspect of the present invention is to provide an electronic component that can increase the inductance of a resonator.

(1) An electronic component according to one aspect of the present invention includes an element body, a ground conductor disposed within the element body, and a resonator disposed within the element body, and the resonator is arranged in one direction. It is constructed across a first conductor extending, a second conductor extending in one direction, an end in the extending direction of the first conductor, and an end in the extending direction of the second conductor. and a connecting conductor disposed at a position overlapping the ground conductor when viewed from one direction, the ground conductor is provided with an opening, and the connecting conductor is located at a position overlapping the ground conductor when viewed from one direction. It is placed in a position that overlaps with the opening of the

In the electronic component according to one aspect of the present invention, the connection conductor is positioned to overlap the ground conductor when viewed from one direction. With this configuration, the magnetic flux generated around the connecting conductor can be shielded by the ground conductor. Therefore, in electronic components, an opening is provided in the ground conductor, and the connection conductor is placed at a position overlapping the opening in the ground conductor when viewed from one direction. As a result, in the electronic component, the magnetic flux generated around the connecting conductor passes through the opening of the ground conductor, so that a magnetic field can be generated around the connecting conductor. That is, in electronic components, a path for magnetic lines formed in a connecting conductor can be ensured, so that the distribution space of magnetic lines can be expanded. As a result, in the electronic component, the apparent volume of the inductor including the connecting conductor can be increased, so that the inductance can be increased. Therefore, in electronic components, it is possible to increase the inductance of the resonator. As a result, spurious components can be improved in electronic components.

(2) The electronic component according to (1), wherein the ground conductor is composed of one member.

(3) The electronic component according to (1) or (2), wherein a plurality of openings are provided in the ground conductor. With this configuration, the amount of magnetic flux generated around the connection conductor that passes through can be adjusted by adjusting the number of openings provided.

(4) The ground conductor includes a first ground conductor and a second ground conductor, and an opening is provided in each of the first ground conductor and the second ground conductor, (1) to (3) Electronic components listed in any one of the above. In this configuration, a space is formed between the first ground conductor and the second ground conductor. Therefore, in the electronic component, it is possible to further secure a path for the magnetic rays formed in the connecting conductor, so that the distribution space of the magnetic rays can be expanded. As a result, in the electronic component, the apparent volume of the inductor including the connecting conductor can be further increased, so that the inductance can be increased. Therefore, in electronic components, it is possible to increase the inductance of the resonator.

(5) The ground conductor includes a first ground conductor and a second ground conductor, and the first ground conductor and the second ground conductor are arranged at different height positions in one direction, and the first ground conductor and the second ground conductor are arranged at different height positions in one direction. The electronic component according to any one of (1) to (3), wherein the opening is formed by the conductor and the second ground conductor. In this configuration, a space is formed between the first ground conductor and the second ground conductor. Therefore, in the electronic component, it is possible to further secure a path for the magnetic rays formed in the connecting conductor, so that the distribution space of the magnetic rays can be expanded. As a result, in the electronic component, the apparent volume of the inductor including the connecting conductor can be further increased, so that the inductance can be increased. Therefore, in electronic components, it is possible to increase the inductance of the resonator.

(6) The electronic component according to (5), wherein the opening is arranged in a position where the opening can be seen when viewed from one direction. In this configuration, since the opening is open to the connecting conductor, the magnetic flux generated around the connecting conductor can pass through the opening formed by the first ground conductor and the second ground conductor. .

(7) Any one of (1) to (6), comprising a terminal electrode arranged on the outer surface of the element body, and the opening is provided at a position that does not overlap with the terminal electrode when viewed from one direction. Electronic components listed in. With this configuration, magnetic flux generated around the connection conductor and passing through the opening of the ground conductor can be prevented from being blocked by the terminal electrode. Therefore, in electronic components, it is possible to increase the inductance of the resonator.

According to one aspect of the present invention, it is possible to increase the inductance of a resonator.

FIGS. 1A and 1B are perspective views of the electronic component according to the first embodiment. FIG. 2 is a transparent perspective view of the electronic component shown in FIG. FIG. 3 is a transparent perspective view of the electronic component shown in FIG. 4(a) is a top view of the electronic component shown in FIG. 1, and FIG. 4(b) is a bottom view of the electronic component shown in FIG. FIG. 5 is an end view of the electronic component shown in FIG. FIG. 6 is a side view of the electronic component shown in FIG. 1. FIG. 7 is an equivalent circuit diagram of the electronic component shown in FIG. 1. FIG. 8 is a diagram showing frequency characteristics of electronic components. FIG. 9 is a transparent perspective view of the electronic component according to the second embodiment. FIG. 10 is a transparent perspective view of the electronic component shown in FIG. 9. 11(a) is a top view of the electronic component shown in FIG. 9, and FIG. 11(b) is a bottom view of the electronic component shown in FIG. FIG. 12 is an end view of the electronic component shown in FIG. 9. FIG. 13 is a side view of the electronic component shown in FIG. 9. FIG. 14 is a transparent perspective view of an electronic component according to a third embodiment. FIG. 15 is a transparent perspective view of the electronic component shown in FIG. 14. 16(a) is a top view of the electronic component shown in FIG. 14, and FIG. 16(b) is a bottom view of the electronic component shown in FIG. FIG. 17 is an end view of the electronic component shown in FIG. 14. FIG. 18 is a side view of the electronic component shown in FIG. 14. FIG. 19 is a transparent perspective view of an electronic component according to the fourth embodiment. FIG. 20 is a transparent perspective view of the electronic component shown in FIG. 19. 21(a) is a top view of the electronic component shown in FIG. 19, and FIG. 21(b) is a bottom view of the electronic component shown in FIG. 19. FIG. 22 is an end view of the electronic component shown in FIG. 19. FIG. 23 is a side view of the electronic component shown in FIG. 19.

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 equivalent elements are given the same reference numerals, and redundant description will be omitted.

[First embodiment]
The electronic component according to the first embodiment will be described with reference to FIGS. 1(a), 1(b), 2, and 3. FIGS. 1A and 1B are perspective views of the electronic component according to the first embodiment. FIG. 2 is a transparent perspective view of the electronic component shown in FIG. FIG. 3 is a transparent perspective view of the electronic component shown in FIG. As shown in FIGS. 1(a), 1(b), 2, and 3, the electronic component 1 includes an element body 2, a first terminal electrode 3, a second terminal electrode 4, and a third terminal electrode 5. and a resonator 6. In FIGS. 2 and 3, for convenience of explanation, the element body 2 is shown by a chain double-dashed line.

The element body 2 has a rectangular parallelepiped shape. The rectangular parallelepiped shape includes a rectangular parallelepiped shape with chamfered corners and edge lines, and a rectangular parallelepiped shape with rounded corners and edge lines. The element body 2 has, as outer surfaces, a pair of end faces 2a, 2b, a pair of main faces 2c, 2d, and a pair of side faces 2e, 2f. The end surfaces 2a and 2b are opposed to each other. The main surfaces 2c and 2d face each other. The side surfaces 2e and 2f are opposed to each other. Hereinafter, the opposing direction of the end surfaces 2a and 2b will be referred to as a first direction D1, the opposing direction of the main surfaces 2c and 2d will be referred to as a second direction (one direction) D2, and the opposing direction of the side surfaces 2e and 2f will be referred to as a third direction D3. . The first direction D1, the second direction D2, and the third direction D3 are substantially perpendicular to each other.

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.

The main surface 2d is a mounting surface, and is a surface that faces another electronic device (for example, a circuit substrate or a laminated electronic component) when the electronic component 1 is mounted on another electronic device (for example, a circuit substrate or a laminated electronic component). The end surfaces 2a and 2b are continuous surfaces from the mounting surface (ie, the main surface 2d). A mark M is provided on the main surface 2c. The mark M indicates the orientation of the electronic component 1. Note that the mark M may not be provided. In this embodiment, the main surface 2c side is above the electronic component 1, and the main surface 2d side is below the electronic component 1.

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 this embodiment, the end surfaces 2a and 2b, the main surfaces 2c and 2d, and the side surfaces 2e and 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.

In addition, in this embodiment, "equivalent" may refer to a value that includes slight differences or manufacturing errors within a preset range, in addition to being equal. For example, if a plurality of values are included within a range of ±5% of the average value of the plurality of values, it is defined that the plurality of values are equivalent.

The element body 2 is formed by laminating a plurality of element body layers (not shown) 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 the extent that the boundaries between the layers are not visible, or may be integrated so that the boundaries between the layers are visible.

The element layer is composed of, for example, a sintered body of ceramic green sheets containing a dielectric material. The dielectric material includes, for example, at least one selected from a BaTiO ₃ -based material, a Ba(Ti,Zr)O ₃ -based material, a (Ba,Ca)TiO _3- based material, a glass material, or an alumina material. .

Each of the first terminal electrode 3 , the second terminal electrode 4 , and the third terminal electrode 5 is provided on the element body 2 . Each of the first terminal electrode 3, the second terminal electrode 4, and the third terminal electrode 5 is arranged on the main surface 2d of the element body 2. The first terminal electrode 3 and the second terminal electrode 4 are provided on the element body 2 so as to be spaced apart 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. The third terminal electrode 5 is arranged between the first terminal electrode 3 and the second terminal electrode 4.

Each of the first terminal electrode 3, second terminal electrode 4, and third terminal electrode 5 has a rectangular shape (rectangular shape). Each of the first terminal electrode 3, the second terminal electrode 4, and the third terminal electrode 5 is arranged such that each side thereof extends along the first direction D1 or the third direction D3. The first terminal electrode 3, the second terminal electrode 4, and the third terminal electrode 5 protrude from the main surface 2d. That is, in this embodiment, the respective surfaces of the first terminal electrode 3, the second terminal electrode 4, and the third terminal electrode 5 are not flush with the main surface 2d. The first terminal electrode 3, the second terminal electrode 4, and the third terminal electrode 5 are made of a conductive material (for example, Cu).

The first terminal electrode 3, the second terminal electrode 4, and the third terminal electrode 5 are each coated with a plating layer (not shown) containing, for example, Ni, Sn, or Au by electrolytic plating or electroless plating. may be provided. The plating layer includes, for example, a Ni plating film containing Ni and covering the first terminal electrode 3, the second terminal electrode 4, and the third terminal electrode 5, and an Au plating film containing Au and covering the Ni plating film. It's okay.

4(a) is a diagram of the electronic component shown in FIG. 1 viewed from above, and FIG. 4(b) is a diagram of the electronic component shown in FIG. 1 viewed from below. FIG. 5 is an end view of the electronic component 1 shown in FIG. FIG. 6 is a side view of the electronic component 1 shown in FIG. 1. As shown in FIGS. 2 to 6, the resonator 6 includes a ground conductor 10, a first conductor 11, a second conductor 12, and an inductor conductor (connection conductor) 13.

The ground conductor 10 is arranged on the main surface 2d side of the element body 2. The ground conductor 10 is composed of one plate member (one member). The ground conductor 10 has a substantially H-shape when viewed from the second direction D2. The ground conductor 10 overlaps each of the first terminal electrode 3, the second terminal electrode 4, and the third terminal electrode 5 when viewed from the second direction D2. The ground conductor 10 is electrically connected to the third terminal electrode 5. The ground conductor 10 and the third terminal electrode 5 are electrically connected by a plurality of connection conductors 16.

The ground conductor 10 is provided with openings 10A and 10B. The openings 10A and 10B are through holes that penetrate the ground conductor 10 in the thickness direction. The openings 10A and 10B have, for example, a rectangular shape. The openings 10A and 10B are arranged such that the third direction D3 is the longitudinal direction. The opening 10A and the opening 10B are spaced apart from each other in the first direction D1. The opening 10A is arranged at a position that does not overlap the first terminal electrode 3 when viewed from the second direction D2. The opening 10B is arranged at a position that does not overlap the second terminal electrode 4 when viewed from the second direction D2.

The first conductor 11 extends along the second direction D2. The first conductor 11 has, for example, a cylindrical shape. The first conductor 11 may be composed of a plurality of via conductors. The first conductor 11 is placed near the end surface 2a of the element body 2. Specifically, the first conductor 11 is arranged at the center in the third direction D3 at a position closer to the end surface 2a of the element body 2 when viewed from the second direction D2. The first conductor 11 has a first end 11A and a second end 11B. The first end portion 11A of the first conductor 11 is electrically connected to the inductor conductor 13 via the connection pad 14. The second end 11B of the first conductor 11 is connected to the first terminal electrode 3.

The second conductor 12 extends along the second direction D2. The second conductor 12 has, for example, a cylindrical shape. The second conductor 12 may be composed of a plurality of via conductors. The second conductor 12 is arranged at a position closer to the end surface 2b of the element body 2. Specifically, the second conductor 12 is arranged at the center in the third direction D3 at a position closer to the end surface 2b of the element body 2 when viewed from the second direction D2. The second conductor 12 is arranged in the first direction D1 at a position facing the first direction D1. The second conductor 12 has a first end 12A and a second end 12B. A first end portion 12A of the second conductor 12 is electrically connected to the inductor conductor 13 via a connection pad 15. The second end 12B of the second conductor 12 is connected to the second terminal electrode 4.

The inductor conductor 13 constitutes an inductor. In this embodiment, the inductor conductor 13 is composed of two conductors that are arranged to face each other in the second direction D2. The inductor conductor 13 has a predetermined width when viewed from the second direction D2, and extends linearly. The inductor conductor 13 has a first end 13A and a second end 13B. The first end 13A is connected to the first end 11A of the first conductor 11 via a connection pad 14. The second end 13B is connected to the first end 12A of the second conductor 12 via the connection pad 15. That is, the inductor conductor 13 is constructed across the first end 11A of the first conductor 11 and the first end 12A of the second conductor 12.

As shown in FIG. 4A, the inductor conductor 13 is arranged to overlap with the opening 10A and the opening 10B of the ground conductor 10 when viewed from the second direction D2. The inductor conductor 13 is located above the opening 10A and the opening 10B and apart from the ground conductor 10. The inductor conductor 13 is arranged so as to straddle the opening 10A and the opening 10B.

FIG. 7 is an equivalent circuit diagram of the electronic component 1 shown in FIG. 1. As shown in FIG. 7, the electronic component 1 includes a first inductor L1, a second inductor L2, a first capacitor C1, a second capacitor C2, and a third capacitor C3.

The first inductor L1 includes a first conductor 11 and an inductor conductor 13. The second inductor L2 includes a second conductor 12 and an inductor conductor 13. The first capacitor C1 includes a first terminal electrode 3 and a ground conductor 10. The second capacitor C2 includes a third terminal electrode 5 and a ground conductor 10. The third capacitor C3 includes a second terminal electrode 4 and a ground conductor 10.

FIG. 8 is a graph showing frequency characteristics of electronic components. FIG. 8 shows frequency characteristics when a signal is input from the first terminal electrode 3 and a signal is output from the second terminal electrode 4. In FIG. 8, the horizontal axis indicates frequency [MHz], and the vertical axis indicates attenuation [dB]. Note that the characteristic diagram illustrated in FIG. 8 represents the results obtained by simulation. In FIG. 8, the measurement results for the electronic component 1 are shown by a solid line, and the measurement results for the electronic component according to the comparative example are shown by a broken line. The electronic component according to the comparative example does not have an opening in the ground conductor.

As shown in FIG. 8, in the electronic component 1 in which the ground conductor 10 is provided with openings 10A and 10B, the inductance is increased compared to the electronic component according to the comparative example. As a result, in the electronic component 1, for example, spurious waves of 25 to 60 GHz or more can be suppressed to 20 dB or less.

As described above, in the electronic component 1 according to the present embodiment, the ground conductor 10 is provided with the openings 10A and 10B, and the inductor conductor 13 is located at the opening of the ground conductor 10 when viewed from the second direction D2. It is arranged at a position overlapping with 10A and 10B. Thereby, in the electronic component 1, the magnetic flux generated around the inductor conductor 13 passes through the openings 10A and 10B of the ground conductor 10, so that a magnetic field can be generated around the inductor conductor 13. That is, in the electronic component 1, a path for the magnetic lines formed in the inductor conductor 13 can be ensured, so that the distribution space of the magnetic lines can be expanded. Thereby, in the electronic component 1, the apparent volume of the inductor including the inductor conductor 13 can be increased, so that the inductance can be increased. Therefore, in the electronic component 1, the inductance of the resonator 6 can be increased. As a result, in the electronic component 1, spurious components can be improved.

In the electronic component 1 according to this embodiment, the ground conductor 10 is provided with two openings 10A and 10B. With this configuration, the amount of magnetic flux generated around the inductor conductor 13 that passes through can be adjusted by the number of openings 10A and 10B provided.

In the electronic component 1 according to the present embodiment, the opening 10A is arranged at a position that does not overlap the first terminal electrode 3 when viewed from the second direction D2. The opening 10B is arranged at a position that does not overlap the second terminal electrode 4 when viewed from the second direction D2. As a result, in the electronic component 1, the magnetic flux generated around the inductor conductor 13 and passing through the openings 10A and 10B of the ground conductor 10 is prevented from being shielded by the first terminal electrode 3 and the second terminal electrode 4. can. Therefore, in the electronic component 1, the inductance of the resonator 6 can be increased.

[Second embodiment]
Next, a second embodiment will be described. FIG. 9 is a transparent perspective view of the electronic component according to the second embodiment. FIG. 10 is a transparent perspective view of the electronic component shown in FIG. 9. As shown in FIGS. 9 and 10, the electronic component 1A includes an element body 2, a first terminal electrode 3, a second terminal electrode 4, a third terminal electrode 5, and a resonator 6A. In FIGS. 9 and 10, for convenience of explanation, the element body 2 is shown by a chain double-dashed line.

11(a) is a top view of the electronic component 1A shown in FIG. 9, and FIG. 11(b) is a bottom view of the electronic component 1A shown in FIG. FIG. 12 is an end view of the electronic component 1A shown in FIG. FIG. 13 is a side view of the electronic component 1A shown in FIG. 8. As shown in FIGS. 9 to 13, the resonator 6A includes a first conductor 11, a second conductor 12, an inductor conductor 13, a first ground conductor 17, a second ground conductor 18, and a third ground conductor 11. A conductor (second ground conductor) 19.

The first ground conductor 17 is arranged on the main surface 2d side of the element body 2. The first ground conductor 17 is arranged at a position closer to the end surface 2a of the element body 2. The first ground conductor 17 has a substantially H-shape when viewed from the second direction D2. The first ground conductor 17 overlaps with the first terminal electrode 3 when viewed from the second direction D2. The first ground conductor 17 is provided with a recess 17A.

The second ground conductor 18 is arranged on the main surface 2d side of the element body 2. The second ground conductor 18 is arranged at a position closer to the end surface 2b of the element body 2. The second ground conductor 18 is arranged at the same height position as the first ground conductor 17 in the second direction D2. The second ground conductor 18 has a substantially H-shape when viewed from the second direction D2. The second ground conductor 18 overlaps with the second terminal electrode 4 when viewed from the second direction D2. The second ground conductor 18 is provided with a recess 18A.

The third ground conductor 19 is arranged on the main surface 2d side of the element body 2. The third ground conductor 19 is arranged between the first ground conductor 17 and the second ground conductor 18. The third ground conductor 19 is arranged at a different height from the first ground conductor 17 and the second ground conductor 18. Specifically, the third ground conductor 19 is arranged at a position closer to the main surface 2c of the element body 2 than the first ground conductor 17 and the second ground conductor 18 in the second direction D2. The third ground conductor 19 has a substantially H-shape when viewed from the second direction D2. The third ground conductor 19 overlaps with the third terminal electrode 5 when viewed from the second direction D2. The third ground conductor 19 is provided with a recess 19A and a recess 19B. The third ground conductor 19 and the third terminal electrode 5 are electrically connected by a plurality of connection conductors 16.

The first ground conductor 17 and the third ground conductor 19 partially overlap in the second direction D2. The first ground conductor 17 and the third ground conductor 19 are electrically connected by a plurality of connection conductors 20. The second ground conductor 18 and the third ground conductor 19 partially overlap in the second direction D2. The second ground conductor 18 and the third ground conductor 19 are electrically connected by a plurality of connection conductors 21.

The first ground conductor 17 and the third ground conductor 19 constitute an opening O1. Specifically, the recess 17A of the first ground conductor 17 and the recess 19A of the third ground conductor 19 constitute an opening O1. The opening O1 is arranged at a position where the opening of the opening O1 can be seen when viewed from the second direction D2. The opening O1 has a rectangular shape when viewed from the second direction D2.

The second ground conductor 18 and the third ground conductor 19 constitute an opening O2. Specifically, the recess 18A of the second ground conductor 18 and the recess 19A of the third ground conductor 19 constitute an opening O2. The opening O2 is arranged at a position where the opening of the opening O2 can be seen when viewed from the second direction D2. The opening O2 has a rectangular shape when viewed from the second direction D2. The opening O1 is arranged at a position that does not overlap the first terminal electrode 3 when viewed from the second direction D2. The opening O2 is arranged at a position that does not overlap the second terminal electrode 4 when viewed from the second direction D2.

As shown in FIG. 11(a), when viewed from the second direction D2, the inductor conductor 13 has an opening O1 formed by the first ground conductor 17 and the third ground conductor 19, and the second ground conductor 18 and the third ground conductor 19 so as to overlap with the opening O2. The inductor conductor 13 is located above the opening O1 and the opening O2, apart from the first ground conductor 17, the second ground conductor 18, and the third ground conductor 19. The inductor conductor 13 is arranged so as to straddle the opening O1 and the opening O2.

As explained above, in the electronic component 1A according to the present embodiment, the openings O1 and O2 are configured by the first ground conductor 17, the second ground conductor 18, and the third ground conductor 19, and the inductor conductor 13 is When viewed from the second direction D2, it is arranged at a position overlapping the openings O1 and O2. Thereby, in the electronic component 1A, since the magnetic flux generated around the inductor conductor 13 passes through the openings O1 and O2, a magnetic field can be generated around the inductor conductor 13. That is, in the electronic component 1A, a path for the magnetic lines formed in the inductor conductor 13 can be ensured, so that the distribution space of the magnetic lines can be expanded. Thereby, in the electronic component 1A, the apparent volume of the inductor including the inductor conductor 13 can be increased, so that the inductance can be increased. Therefore, in the electronic component 1A, it is possible to increase the inductance of the resonator 6A. As a result, in the electronic component 1A, spurious noise can be improved.

In the electronic component 1A according to the present embodiment, the first ground conductor 17 and the third ground conductor 19 have different height positions in the second direction D2, and form an opening O1. The second ground conductor 18 and the third ground conductor 19 have different height positions in the second direction D2, and form an opening O2. As a result, in the electronic component 1A, in addition to the openings O1 and O2, there are also spaces between the first ground conductor 17 and the third ground conductor 19, and between the second ground conductor 18 and the third ground conductor 19. A space is formed. Therefore, in the electronic component 1A, it is possible to further secure a path for the magnetic rays formed in the inductor conductor 13, so that the distribution space of the magnetic rays can be expanded. Thereby, in the electronic component 1A, the apparent volume of the inductor including the inductor conductor 13 can be further increased, so that the inductance can be increased. Therefore, in the electronic component 1A, it is possible to increase the inductance of the resonator 6A.

In the electronic component 1A according to the present embodiment, the openings O1 and O2 are arranged at positions where the openings of the openings O1 and O2 can be seen when viewed from the second direction D2. In this configuration, since the openings O1 and O2 are open to the inductor conductor 13, the magnetic flux generated around the inductor conductor 13 can pass through the openings O1 and O2.

[Third embodiment]
Next, a third embodiment will be described. FIG. 14 is a transparent perspective view of an electronic component according to a third embodiment. FIG. 15 is a transparent perspective view of the electronic component shown in FIG. 14. As shown in FIGS. 14 and 15, the electronic component 1B includes an element body 2, a first terminal electrode 3, a second terminal electrode 4, a third terminal electrode 5, and a resonator 6B. In FIGS. 14 and 15, the element body 2 is shown by a chain double-dashed line for convenience of explanation.

16(a) is a top view of the electronic component 1B shown in FIG. 14, and FIG. 16(b) is a bottom view of the electronic component 1B shown in FIG. FIG. 17 is an end view of the electronic component 1B shown in FIG. 14. FIG. 18 is a side view of the electronic component 1B shown in FIG. 14. As shown in FIGS. 14 to 18, the resonator 6B includes a first conductor 11, a second conductor 12, an inductor conductor 13, a first ground conductor 22, and a second ground conductor 23. There is.

The first ground conductor 22 is arranged on the main surface 2d side of the element body 2. The first ground conductor 22 is arranged at a position closer to the end surface 2a of the element body 2. The first ground conductor 22 overlaps each of the first terminal electrode 3 and the third terminal electrode 5 when viewed from the second direction D2. The first ground conductor 22 and the third terminal electrode 5 are electrically connected by a plurality of connection conductors 16.

The first ground conductor 22 is provided with an opening 22A. The opening 22A penetrates the first ground conductor 22 in the thickness direction. The opening 22A has, for example, a rectangular shape. The opening 22A is arranged such that the third direction D3 is the longitudinal direction. The opening 22A is arranged at a position that does not overlap the first terminal electrode 3 when viewed from the second direction D2.

The second ground conductor 23 is arranged on the main surface 2d side of the element body 2. The second ground conductor 23 is arranged at the same height position as the first ground conductor 22 in the second direction D2. The second ground conductor 23 is arranged at a position closer to the end surface 2b of the element body 2. The second ground conductor 23 and the first ground conductor 22 are arranged at a predetermined interval in the first direction D1. The second ground conductor 23 overlaps each of the second terminal electrode 4 and the third terminal electrode 5 when viewed from the second direction D2. The second ground conductor 23 and the third terminal electrode 5 are electrically connected by a plurality of connection conductors 16.

The second ground conductor 23 is provided with an opening 23A. The opening 23A penetrates the second ground conductor 23 in the thickness direction. The opening 23A has, for example, a rectangular shape. The opening 23A is arranged such that the third direction D3 is the longitudinal direction. The opening 23A is arranged at a position that does not overlap the second terminal electrode 4 when viewed from the second direction D2.

As shown in FIG. 16(a), when viewed from the second direction D2, the inductor conductor 13 is arranged so as to overlap the opening 22A of the first ground conductor 22 and the opening 23A of the second ground conductor 23. has been done. Inductor conductor 13 is located above opening 22A and opening 23A. The inductor conductor 13 is arranged so as to straddle the opening 22A and the opening 23A.

As explained above, in the electronic component 1B according to the present embodiment, the first ground conductor 22 is provided with the opening 22A, and the second ground conductor 23 is provided with the opening 23A. In the electronic component 1B, the inductor conductor 13 is arranged at a position overlapping with the opening 22A of the first ground conductor 22 and the opening 23A of the second ground conductor 23 when viewed from the second direction D2. As a result, in the electronic component 1B, the magnetic flux generated around the inductor conductor 13 passes through the opening 22A in the first ground conductor 22 and the opening 23A in the second ground conductor 23, so that a magnetic field is generated around the inductor conductor 13. can be generated. That is, in the electronic component 1B, since a path for the magnetic lines formed in the inductor conductor 13 can be secured, the distribution space of the magnetic lines can be expanded. Thereby, in the electronic component 1B, the apparent volume of the inductor including the inductor conductor 13 can be increased, so that the inductance can be increased. Therefore, in the electronic component 1B, it is possible to increase the inductance of the resonator 6B. As a result, in the electronic component 1B, spurious noise can be improved.

In the electronic component 1B according to the present embodiment, the first ground conductor 22 and the second ground conductor 23 are arranged at a predetermined interval in the first direction D1. Thereby, a space is formed between the first ground conductor 22 and the second ground conductor 23 in the electronic component 1B. Therefore, in the electronic component 1B, the path for the magnetic lines formed in the inductor conductor 13 can be further ensured, so that the distribution space of the magnetic lines can be expanded. Thereby, in the electronic component 1B, the apparent volume of the inductor including the inductor conductor 13 can be further increased, so that the inductance can be increased. Therefore, in the electronic component 1B, it is possible to increase the inductance of the resonator 6B.

[Fourth embodiment]
Next, a fourth embodiment will be described. FIG. 19 is a transparent perspective view of an electronic component according to the fourth embodiment. FIG. 20 is a transparent perspective view of the electronic component shown in FIG. 19. As shown in FIGS. 19 and 20, the electronic component 1C includes an element body 2, a first terminal electrode 3, a second terminal electrode 4, a third terminal electrode 5, and a resonator 6C. In FIGS. 19 and 20, for convenience of explanation, the element body 2 is shown by a chain double-dashed line.

21(a) is a top view of the electronic component 1C shown in FIG. 19, and FIG. 21(b) is a bottom view of the electronic component 1C shown in FIG. 19. FIG. 22 is an end view of the electronic component 1C shown in FIG. 19. FIG. 23 is a side view of the electronic component 1C shown in FIG. 19. As shown in FIGS. 19 to 23, the resonator 6C includes a ground conductor 10, a first conductor 11, a second conductor 12, a third conductor 24, a first inductor conductor 25, and a second inductor conductor. 26, a third inductor conductor 27, and a capacitor pad 31.

The first end portion 11A of the first conductor 11 is electrically connected to the first inductor conductor 25. A first end 12A of the second conductor 12 is electrically connected to the second inductor conductor 26.

The third conductor 24 extends along the second direction D2. The third conductor 24 has, for example, a cylindrical shape. The third conductor 24 may be composed of a plurality of via conductors. The third conductor 24 has a first end 24A and a second end 24B. A first end 24A of the third conductor 24 is connected to the third inductor conductor 27 via a connection pad 28. The third conductor 24 is connected to the central portion of the third inductor conductor 27 in the extending direction. A second end 24B of the third conductor 24 is connected to the capacitor pad 31. Capacitor pad 31 has, for example, a circular shape. Capacitor pad 31 is arranged to face third terminal electrode 5 .

The first inductor conductor 25 constitutes an inductor. In this embodiment, the first inductor conductor 25 is composed of two conductors. As shown in FIG. 21(a), the first inductor conductor 25 has a square frame shape when viewed from the second direction D2. The first inductor conductor 25 is connected to the first end 11A of the first conductor 11.

The second inductor conductor 26 constitutes an inductor. In this embodiment, the second inductor conductor 26 is composed of two conductors. The second inductor conductor 26 has a square frame shape when viewed from the second direction D2. The second inductor conductor 26 is connected to the first end 12A of the second conductor 12.

The third inductor conductor 27 constitutes an inductor. In this embodiment, the third inductor conductor 27 is composed of two conductors. The third inductor conductor 27 has a predetermined width when viewed from the second direction D2, and extends linearly along the first direction D1. The third inductor conductor 27 is connected to the first end 24A of the third conductor 24.

The first inductor conductor 25 and the third inductor conductor 27 are connected via a connecting pad 29. The second inductor conductor 26 and the third inductor conductor 27 are connected via a connecting pad 30. The third inductor conductor 27 connects the first inductor conductor 25 and the second inductor conductor 26. With this configuration, the first inductor conductor 25, the second inductor conductor 26, and the third inductor conductor 27 are constructed across the first end 11A of the first conductor 11 and the first end 12A of the second conductor 12. .

As shown in FIG. 21(a), when viewed from the second direction D2, the first inductor conductor 25, the second inductor conductor 26, and the third inductor conductor 27 are connected to the opening 10A and the opening 10B of the ground conductor 10. are arranged so that they overlap. The first inductor conductor 25, the second inductor conductor 26, and the third inductor conductor 27 are located above the opening 10A and the opening 10B. The first inductor conductor 25, the second inductor conductor 26, and the third inductor conductor 27 are arranged so as to straddle the opening 10A and the opening 10B.

As explained above, in the electronic component 1C according to the present embodiment, the ground conductor 10 is provided with the openings 10A and 10B, and the first inductor conductor 25, the second inductor conductor 26, and the third inductor conductor 27 are It is arranged at a position overlapping with the openings 10A and 10B of the ground conductor 10 when viewed from the second direction D2. Thereby, in the electronic component 1C, since the magnetic flux generated around the inductor conductor 13 passes through the openings 10A and 10B of the ground conductor 10, a magnetic field can be generated around the inductor conductor 13. That is, in the electronic component 1C, a path for the magnetic lines formed in the inductor conductor 13 can be ensured, so that the distribution space of the magnetic lines can be expanded. Thereby, in the electronic component 1, the apparent volume of the inductor including the inductor conductor 13 can be increased, so that the inductance can be increased. Therefore, in the electronic component 1C, it is possible to increase the inductance of the resonator 6C. As a result, in the electronic component 1C, spurious noise can be improved.

Although the embodiments of the present invention have been described above, the present invention is not necessarily limited to the embodiments described above, and various changes can be made without departing from the gist thereof.

In the second embodiment, the opening O1 is formed by the first ground conductor 17 and the third ground conductor 19, and the opening O2 is formed by the second ground conductor 18 and the third ground conductor 19. , an example in which the display is disposed at a visible position when viewed from the second direction D2 has been described. However, the openings O1 and O2 may not be visible when viewed from the second direction D2.

In the above embodiment, the electronic components 1, 1A, 1B, and 1C each include one resonator. However, the electronic component may include multiple resonators.

1, 1A, 1B, 1C...electronic component, 2...element body, 6, 6A, 6B, 6C...resonator, 10...ground conductor, 10A, 10B, 22A, 23A, O1, O2...opening, 11...th 1 conductor, 12... Second conductor, 13... Inductor conductor (connection conductor), 17, 22... First ground conductor, 18, 23... Second ground conductor, 19... Third ground conductor (second ground conductor), D2 ...Second direction (one direction).

Claims (7)

The element body and
a ground conductor disposed within the element body;
a resonator disposed within the element body,
The resonator is
a first conductor extending in one direction;
a second conductor extending in the one direction;
A connecting conductor that spans an end in the extending direction of the first conductor and an end in the extending direction of the second conductor, and is arranged at a position overlapping with the ground conductor when viewed from the one direction. and,
The ground conductor is provided with an opening,
The electronic component, wherein the connection conductor is arranged at a position overlapping with the opening of the ground conductor when viewed from the one direction. The electronic component according to claim 1, wherein the ground conductor is composed of one member. The electronic component according to claim 1 or 2, wherein a plurality of the openings are provided in the ground conductor. The ground conductor includes a first ground conductor and a second ground conductor,
The electronic component according to claim 1 or 2, wherein each of the first ground conductor and the second ground conductor is provided with the opening. The ground conductor includes a first ground conductor and a second ground conductor,
The first ground conductor and the second ground conductor are arranged at different height positions in the one direction,
The electronic component according to claim 1 or 2, wherein the opening is configured by the first ground conductor and the second ground conductor. The electronic component according to claim 5, wherein the opening is located at a position where the opening of the opening can be seen when viewed from the one direction. comprising a terminal electrode arranged on the outer surface of the element body,
The electronic component according to claim 1 or 2, wherein the opening is provided at a position that does not overlap with the terminal electrode when viewed from the one direction.

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