IP Library Granted Patent US 7,068,490
Granted Patent B2
US 7,068,490 · App. 10/826,605 · Granted Jun 27, 2006

Thermal dissipating capacitor and electrical component comprising same

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,068,490
App. No.
10/826,605
Granted
Jun 27, 2006
Kind
B2
Abstract

An electrical component with a printed circuit board. The printed circuit board has an upper face and a lower face. A microprocessor is mounted to the upper face. A capacitor is mounted to the lower face. The capacitor has a first face parallel to the printed circuit board and a second face opposite to the first face. First plates and second plates are in alternating planar relationship with a dielectric therebetween and arranged in a plane perpendicular to the plane created by the circuit board. Each first plate has a first coupling tab and a power tab on opposing edges wherein the first coupling tab terminates at the first face and the power tab terminates at the second face. Each second plate of the second plates comprises a second coupling tab and a ground tab on opposing edges wherein the second coupling tab terminates at the first face and the ground tab terminates at the second face. The first coupling tab and the second coupling tab are in electrical contact with the microprocessor.

Claims (74)

1. An electrical component comprising:

a printed circuit board comprising an upper face and a lower face

a microprocessor mounted to said upper face;

a capacitor mounted to said lower face wherein said capacitor comprises:

a first face parallel to said printed circuit board and a second face opposite to said first face;

first plates and second plates in alternating planar relationship with a dielectric therebetween;

each first plate of said first plates comprises a first coupling tab and a power tab on opposing edges wherein said first coupling tab terminates at said first face and said power tab terminates at said second face;

each second plate of said second plates comprises a second coupling tab and a ground tab on opposing edges wherein said second coupling tab terminates at said first face and said ground tab terminates at said second face;

wherein said first coupling tab and said second coupling tab are in electrical contact with said microprocessor.

2. The electrical component of claim 1 wherein each said first plate comprises a multiplicity of power tabs and a multiplicity of first coupling tabs.

3. The electrical component of claim 2 wherein each power tab terminates at said second face.

4. The electrical component of claim 1 wherein said first plates and said second plates are substantially perpendicular to said printed circuit board.

5. The electrical component of claim 1 wherein said capacitor comprises subunits wherein each subunit comprises first coupling tabs, second coupling tabs, power tabs and ground tabs.

6. The electrical component of claim 5 further comprising first external coupling terminations in electrical contact with said first coupling tabs and second external coupling terminations in electrical contact with said second coupling tabs.

7. The electrical component of claim 6 wherein said first external coupling terminations are linearly coupled.

8. The electrical component of claim 6 wherein said first external coupling terminations and said second external coupling terminations are alternating.

9. The electrical component of claim 1 wherein said capacitor is attached to said printed circuit board by a ball grid array.

10. The electrical component of claim 1 wherein said capacitor is attached to said printed circuit board by a solder strip.

11. The electrical component of claim 1 wherein said first coupling tab and said power tab are opposing.

12. An electrical component comprising:

a printed circuit board comprising an upper face and a lower face

a microprocessor mounted to said upper face;

a subunit mounted to said lower face wherein said subunit comprises:

a first face parallel to said printed circuit board and a second face opposite to said first face;

first plates and second plates in alternating planar relationship with a dielectric therebetween;

each first plate of said first plates comprises a first coupling tab and a power tab on opposing edges wherein said first coupling tab terminates at said first face and said power tab terminates at said second face;

each second plate of said second plates comprises a second coupling tab and a ground tab on opposing edges wherein said second coupling tab terminates at said first face and said ground tab terminates at said second face;

wherein said first coupling tab and said second coupling tab are in electrical contact with said microprocessor.

13. The electrical component of claim 12 comprising multiple subunits.

14. The electrical component of claim 13 wherein said subunits are combined to form a capacitor.

15. The electrical component of claim 14 wherein said capacitor comprises ceramic between said subunits.

16. The electrical component of claim 14 wherein said first coupling tabs of each subunit are aligned.

17. The electrical component of claim 14 wherein said first coupling of each subunit and said second coupling of each subunit are alternating.

18. An electrical component comprising:

a printed circuit board comprising power terminals and ground terminals;

a capacitor mounted on said printed circuit board wherein said capacitor comprises:

alternating first plates and second plates with a dielectric between said first plates and second plates wherein said first plates and said second plates are perpendicular to said printed circuit board;

wherein said first plates comprise power lead out tabs terminating at power external terminals and coupling lead out tabs terminating at first coupling terminals wherein said power external terminals are in electrical contact with said power terminals; and

said second plates comprise ground tabs terminating at ground external terminals and second coupling tabs terminating at second coupling terminals wherein said ground external terminals are in electrical contact with said ground terminals;

a chipboard with said capacitor mounted thereon comprising power coupling terminals in electrical contact with said first coupling terminal and ground coupling terminals in electrical contact with said second coupling terminals.

19. The electrical component of claim 18 wherein said power lead out tabs and said ground tabs are in alternating arrangement.

20. The electrical component of claim 19 wherein said capacitor is mounted to said printed circuit board by a ball grid array.

21. The electrical component of claim 18 wherein said power lead out tabs are aligned and said ground tabs are aligned.

22. The electrical component of claim 21 wherein said capacitor is mounted to said printed circuit board by a solder strip.

23. The electrical component of claim 18 further comprising a microprocessor mounted on said printed circuit board.

24. The electrical component of claim 23 wherein said printed circuit board is between said microprocessor and said capacitor.

25. The electrical component of claim 18 further comprising a heat sink.

26. A capacitor comprising:

a first face and a second face parallel to said first face and four sides perpendicular to and between said first face and said second face;

subunits wherein each subunit of said subunits comprises:

first plates and second plates in alternating planar relationship with a dielectric therebetween;

each first plate of said first plates comprises a first coupling tab and a power tab on opposing edges wherein said first coupling tab terminates at said first face and said power tab terminates at said second face;

each second plate of said second plates comprises a second coupling tab and a ground tab on opposing edges wherein said second coupling tab terminates at said first face and said ground tab terminates at said second face; and

wherein said subunits are fused together with ceramic between said subunits.

27. The capacitor of claim 26 wherein said first coupling tabs of each subunit are aligned.

28. The capacitor of claim 26 wherein said first coupling tabs of each subunit and said second coupling tabs of each subunit are alternating.

29. A capacitor comprising:

a pair of opposing faces;

subunits wherein:

each subunit comprises a multiplicity of first plates and second plates in alternating parallel relationship and perpendicular to said opposing faces;

said first plates comprise first lead out tabs which terminate at a first external terminal at a first face;

said second plates comprise second lead out tabs which terminate at a second external terminal at said first face;

a first external terminal in contact with said first lead out tabs;

a second external terminal in contact with said second lead out tabs;

said subunits are arranged in parallel such that said first external terminals and said second external terminals are on said first face.

30. The capacitor of claim 29 wherein said first external terminal of each said subunit are aligned.

31. The capacitor of claim 29 wherein said first external terminal is in electrical contact with a first external terminal of a second said subunit.

32. The capacitor of claim 29 wherein said first external terminal of each said subunit and said second external terminal of each said subunit are alternating.

33. The capacitor of claim 29 wherein each of said first plates comprises third lead out tabs which terminate at a third external terminal on a second face.

34. The capacitor of claim 33 wherein each of said second plates comprises fourth lead out tabs which terminate at a fourth external terminal on said second face.

35. The capacitor of claim 34 wherein said third external terminal and said fourth external terminal are aligned.

36. The capacitor of claim 35 wherein said third external terminal and said fourth external terminal are alternating.

37. The capacitor of claim 36 wherein said first external terminal and said third external terminal are opposing.

38. The capacitor of claim 37 wherein said first externalterminal and saidfourth external terminal are opposing.

Assignments (4)
SECURITY INTEREST Recorded Oct 5, 2010
From: KEMET ELECTRONICS CORPORATION
To: BANK OF AMERICA, N.A. AS AGENT
Reel/Frame 025150/0023 →
RELEASE OF SECURITY INTEREST RECORDED AT REEL/FRAME 022892/0795 Recorded May 18, 2010
From: K FINANCING, LLC
To: KEMET CORPORATION
Reel/Frame 024397/0774 →
SECURITY AGREEMENT Recorded Jul 1, 2009
From: KEMET CORPORATION
To: K FINANCING, LLC
Reel/Frame 022892/0795 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2004
From: PRYMAK, JOHN D.
To: KEMET ELECTRONICS CORPORATION
Reel/Frame 015595/0422 →