Capacitor arrangement structure and method of mounting capacitor

Patent metadata

Field	Value
Publication number	US-9398693-B2
Application number	US-201414300797-A
Country	US
Kind code	B2
Filing date	Jun 10, 2014
Priority date	Jun 13, 2013
Publication date	Jul 19, 2016
Grant date	Jul 19, 2016

Abstract

A capacitor arrangement structure includes: a first wiring pattern; a second wiring pattern; a first electrode pattern that protrudes from the first wiring pattern toward the second wiring pattern; a second electrode pattern that protrudes from the second wiring pattern toward the first wiring pattern so as to run in parallel to the first electrode pattern; and a plurality of capacitors that are arranged in parallel between the first electrode pattern and the second electrode pattern.

First claim

What is claimed is:

1. A capacitor arrangement structure comprising:
a first wiring pattern;
a second wiring pattern;
a first electrode pattern that protrudes from the first wiring pattern toward the second wiring pattern;
a second electrode pattern that protrudes from the second wiring pattern toward the first wiring pattern so as to run in parallel to the first electrode pattern; and
a plurality of capacitors that are arranged in parallel between the first electrode pattern and the second electrode pattern.

2. The capacitor arrangement structure according to claim 1 , wherein a plurality of paths each of which extends the first wiring pattern and the second wiring pattern via any one of the capacitors are included, and a plurality of the paths has the same resistance.

3. The capacitor arrangement structure according to claim 1 , wherein the first electrode pattern and the second electrode pattern are alternately arranged.

4. The capacitor arrangement structure according to claim 3 , wherein a plurality of the first electrode patterns have mutually different resistances depending on a length of a path from a current source connected to the first wiring pattern.

5. The capacitor arrangement structure according to claim 3 , wherein, among a plurality of the first electrode patterns, an electrode pattern that has a longer path from a current source connected to the first wiring pattern has a resistance lower than an electrode pattern that has a shorter path from the current source.

6. The capacitor arrangement structure according to claim 4 , wherein the plurality of the first electrode patterns have mutually different resistances at predetermined positions.

7. The capacitor arrangement structure according to claim 6 , wherein cross-sectional areas of the predetermined positions are mutually different.

8. The capacitor arrangement structure according to claim 7 , wherein amounts of a solder at the predetermined positions are mutually different.

9. The capacitor arrangement structure according to claim 7 , wherein magnitudes of separate patterns connected to the predetermined positions are mutually different.

10. The capacitor arrangement structure according to claim 7 , wherein notches are disposed at the predetermined positions and magnitudes of the notches are mutually different.

11. The capacitor arrangement structure according to claim 6 , wherein the predetermined positions are root sections between the capacitor and the first wiring pattern.

12. The capacitor arrangement structure according to claim 1 , further comprising a current source that is a generator of a ripple current, which is connected to the first wiring pattern and the second wiring pattern and inverts a direction of electric conduction between the first wiring pattern and the second wiring pattern.

13. A method of mounting a capacitor comprising:
arranging a plurality of capacitors in parallel between a plurality of first electrode patterns that protrude from a first wiring pattern toward a second wiring pattern and a second electrode pattern that protrudes from the second wiring pattern toward the first wiring pattern so as to be sandwiched by the first electrode patterns; and
adjusting resistances of the first electrode patterns depending on a length of a path from a current source connected to the first wiring pattern.

Assignees

• Toyota Motor Co Ltd

Inventors

• Muto Jun

Classifications

• H05K1/11

  Printed elements for providing electric connections to or between printed circuits · CPC title

• H05K1/165

  incorporating printed inductors · CPC title

• H05K2201/09736

  Varying thickness of a single conductor; Conductors in the same plane having different thicknesses · CPC title

• H05K1/181 Primary

  associated with surface mounted components · CPC title

• H05K1/162

  incorporating printed capacitors · CPC title