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CN-122002698-A - Electronic device

CN122002698ACN 122002698 ACN122002698 ACN 122002698ACN-122002698-A

Abstract

The electronic device includes a body having a mounting surface and a main surface that face each other, a first electrode, a second electrode, a third electrode, and a fourth electrode disposed on the mounting surface, a first wiring that electrically connects the first electrode and the second electrode, a second wiring that electrically connects the third electrode and the fourth electrode and magnetically couples the first wiring, and a capacitor disposed between at least one of the first electrode and the third electrode and between the second electrode and the fourth electrode.

Inventors

  • Da Qiaowu

Assignees

  • TDK株式会社

Dates

Publication Date
20260508
Application Date
20250930
Priority Date
20241105

Claims (10)

  1. 1. An electronic device, comprising: a body having a mounting surface and a main surface facing each other; a first electrode, a second electrode, a third electrode, and a fourth electrode disposed on the mounting surface; A first line electrically connecting the first electrode and the second electrode; a second circuit electrically connecting the third electrode with the fourth electrode and magnetically coupled with the first circuit, and And a capacitor provided between at least one of the first electrode and the third electrode and between the second electrode and the fourth electrode.
  2. 2. The electronic device of claim 1, wherein the electronic device comprises a plurality of electronic components, The capacitor is configured by a plurality of conductors arranged at the same height position in the opposite direction of the mounting surface and the main surface.
  3. 3. The electronic device of claim 2, wherein the electronic device comprises a plurality of electronic components, The plurality of conductors comprises at least a first conductor, a second conductor and a third conductor, The second conductor is disposed between the first conductor and the third conductor as viewed from the opposing direction.
  4. 4. An electronic device according to claim 1 or 2, characterized in that, A first capacitor is arranged between the first electrode and the third electrode, A second capacitor is arranged between the second electrode and the fourth electrode, The capacitance of the first capacitor is different from the capacitance of the second capacitor.
  5. 5. The electronic device according to claim 2, characterized by comprising: a ground electrode disposed on the mounting surface and connected to the ground element, and And a resistor disposed in an electrical path between the ground electrode and the second line.
  6. 6. The electronic device of claim 5, wherein the electronic device comprises a plurality of electronic components, A first capacitor is arranged between the first electrode and the third electrode, A second capacitor is arranged between the second electrode and the fourth electrode, The resistor is disposed closer to the plurality of conductors constituting the second capacitor than to the plurality of conductors constituting the first capacitor.
  7. 7. An electronic device according to claim 1 or 2, characterized in that, The semiconductor device includes a third capacitor and a fourth capacitor provided in an electrical path between the third electrode and the fourth electrode including the second line.
  8. 8. The electronic device according to claim 7, characterized by comprising: A first resistor electrically connected in series with the third capacitor, and And a second resistor electrically connected in parallel with the fourth capacitor.
  9. 9. The electronic device of claim 7, wherein the electronic device comprises a plurality of electronic components, The capacitor is composed of a plurality of conductors arranged at the same height position in the opposite direction of the mounting surface and the main surface, The area of the region where the plurality of conductors are arranged is larger than the area of the conductors constituting the third capacitor and the area of the conductors constituting the fourth capacitor.
  10. 10. The electronic device of claim 2, wherein the electronic device comprises a plurality of electronic components, The plurality of conductors are directly connected to any one of conductors connected to the first electrode, the second electrode, the third electrode, and the fourth electrode in a direction opposite to the mounting surface and the main surface.

Description

Electronic device Technical Field The present disclosure relates to an electronic device. Background Japanese patent laying-open No. 2009-44303 discloses an electronic device comprising a laminate made of a dielectric material, a set of input/output terminals, detection terminals, and terminal terminals provided on the lower surface of the laminate, a main line provided in the laminate, a sub-line coupled to the main line, and first and second attenuators disposed on the upper surface of the laminate, the main line having one end connected to each of the input/output terminals, the sub-line having one end connected to the first attenuator and the other end connected to the second attenuator, the first attenuator being connected to the detection terminals via a first inductor provided in the laminate, and the second attenuator being connected to the terminal terminals via a second inductor provided in the laminate. Disclosure of Invention First, the technical problem to be solved If the electronic device is miniaturized, the distance between the main line and the sub line provided in the element (laminate) becomes short, and a capacitance is formed, or a reverse current by a loop is generated, and the isolation is lowered. (II) technical scheme An object of the present disclosure is to provide an electronic device capable of achieving improvement in isolation. (1) An electronic device of one side of the present disclosure includes a body having a mounting surface and a main surface that face each other, a first electrode, a second electrode, a third electrode, and a fourth electrode disposed on the mounting surface, a first wiring that electrically connects the first electrode and the second electrode, a second wiring that electrically connects the third electrode and the fourth electrode and magnetically couples the first wiring, and a capacitor disposed between at least one of the first electrode and the third electrode and between the second electrode and the fourth electrode. An electronic device according to one aspect of the present disclosure includes a capacitor provided between at least one of a first electrode and a third electrode and a second electrode and a fourth electrode. In this way, in the electronic device, by providing a capacitor between the first electrode and the third electrode and/or between the second electrode and the fourth electrode to form a capacitance, high isolation can be achieved even when the distance between the first line (main line) and the second line (sub line) is shortened. Therefore, in the electronic device, improvement in isolation can be achieved. (2) In the electronic device according to (1), the capacitor may be constituted by a plurality of conductors arranged at the same height position in the direction in which the mounting surface and the main surface face each other. In this structure, the capacitance of the capacitor can be easily adjusted. This structure is particularly effective in order to form a minute capacitance in the capacitor. (3) In the electronic device according to (2), the plurality of conductors may include at least a first conductor, a second conductor, and a third conductor, and the second conductor may be arranged between the first conductor and the third conductor when viewed from the opposite direction. In this structure, the capacitance of the capacitor can be adjusted by adjusting the area of the adjacent conductors facing each other. (4) In any one of the electronic devices (1) to (3), a first capacitor may be provided between the first electrode and the third electrode, and a second capacitor may be provided between the second electrode and the fourth electrode, wherein the capacitance of the first capacitor is different from the capacitance of the second capacitor. In this way, by providing two capacitors, i.e., a first capacitor and a second capacitor having different capacitances, as the capacitors, the capacitance of the capacitors in the electronic device can be easily adjusted. (5) The electronic device according to any one of (1) to (4) above may further include a ground electrode disposed on the mounting surface and connected to the ground element, and a resistor disposed in an electrical path between the ground electrode and the second line. (6) In any one of the electronic devices (1) to (5), a first capacitor may be provided between the first electrode and the third electrode, and a second capacitor may be provided between the second electrode and the fourth electrode, and the resistor may be disposed at a position closer to the plurality of conductors constituting the second capacitor than the plurality of conductors constituting the first capacitor. (7) The electronic device according to any one of (1) to (6) above may further include a third capacitor and a fourth capacitor provided in an electrical path between the third electrode and the fourth electrode including the second line. (8) The electronic device according