IP Library Granted Patent US 10,136,529
Granted Patent B2
US 10,136,529 · App. 15/236,844 · Granted Nov 20, 2018

Low profile, highly configurable, current sharing paralleled wide band gap power device power module

Inventors: Brice McPherson (Fayetteville, AR); Peter Killeen (Fayetteville, AR); Alex Lostetter (Fayetteville, AR); Robert Shaw (Fayetteville, AR); Brandon Passmore (Fayetteville, AR); Jared Hornberger (Fayetteville, AR); Tony M. Berry (Springdale, AR)
Assignee: Cree Fayetteville, Inc.
H05K5/0069H01L21/4817H01L23/049H01L23/3675H01L23/3735H01L25/07H01L25/072H05K1/0296H05K5/0013H05K5/0091H05K5/0247H05K7/20509H01L23/15H01L23/49838H01L23/49861H01L2924/0002
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Quick Facts
Patent No.
US 10,136,529
App. No.
15/236,844
Granted
Nov 20, 2018
Kind
B2
Abstract

A method of making a power module includes providing a base plate defining a topology pattern, providing a power substrate above the base plate, providing at least two power contacts and arranging solder catches in the at least two power contacts, soldering the at least two power contacts to the power substrate utilizing the solder catches, and securing a housing to the power substrate.

Claims (74)

1. A power module apparatus, comprising:

a base plate defining a topology pattern;

a power substrate positioned above the base plate;

at least two power contacts, each of the at least two power contacts electrically connected to the power substrate; and

a housing secured to the power substrate,

wherein the power module comprises a height that is less than 20 mm.

2. The power module according to claim 1 , wherein the height is at least three times thinner than prior art power modules.

3. The power module according to claim 1 wherein the height is 10 mm or less.

4. The power module according to claim 1 further comprising solder catches arranged on the at least two power contacts,

wherein the at least two power contacts are soldered to the power substrate through the solder catches.

5. The power module according to claim 1 further comprising:

a gate and source board provided above the power substrate;

gate drive connectors electrically connected to the gate and source board;

at least two parallel shared current path power devices electrically connected to the at least two power contacts; and

the gate drive connectors and the at least two power contacts are configured to extend through the housing.

6. The power module according to claim 5 wherein the gate and source board comprises a plurality of interconnection channels being configured in one of a plurality of positions to provide a plurality of power module configurations.

7. The power module according to claim 1 wherein the power module is configured to implement at least one of a plurality of power electronic topologies including at least one of the following: a half bridge, a common source, and a common drain.

8. The power module according to claim 1

wherein the power module is configured to receive one of a plurality of different gate and source board configurations; and

wherein each one of the plurality of different gate and source board configurations comprise a different configuration of a plurality of interconnection channels.

9. The power module according to claim 1 wherein the power module is configured to utilize up to 60% of a total footprint area for conduction of power.

10. The power module according to claim 1 further comprising a plurality of power devices,

wherein the plurality of power devices are evenly spaced across the power substrate.

11. A power module apparatus, comprising:

a base plate defining a topology pattern;

a power substrate positioned above the base plate;

at least two power contacts, each of the at least two power contacts electrically connected to the power substrate;

solder catches arranged on the at least two power contacts; and

a housing secured to the power substrate.

12. The power module according to claim 11 wherein the power module comprises a height that is at least two times thinner than prior art power modules.

13. The power module according to claim 11 wherein the at least two power contacts are soldered to the power substrate through the solder catches.

14. The power module according to claim 11 further comprising:

a gate and source board provided above the power substrate;

gate drive connectors electrically connected to the gate and source board;

at least two parallel shared current path power devices electrically connected to the at least two power contacts; and

the gate drive connectors and the at least two power contacts are configured to extend through the housing.

15. The power module according to claim 11 wherein the power module is configured to implement at least one of a plurality of power electronic topologies including at least one of the following: a half bridge, a common source, and a common drain.

16. The power module according to claim 11

wherein the power module is configured to receive one of a plurality of different gate and source board configurations; and

wherein each one of the plurality of different gate and source board configurations comprise a different configuration of a plurality of interconnection channels.

17. The power module according to claim 11 wherein the power module is configured to utilize up to 60% of a total footprint area for conduction of power.

18. The power module according to claim 11 further comprising a plurality of power devices,

wherein the plurality of power devices are evenly spaced across the power substrate.

19. A power module apparatus, comprising:

a base plate defining a topology pattern;

a power substrate positioned above the base plate;

at least two power contacts, each of the at least two power contacts electrically connected to the power substrate; and

a housing secured to the power substrate,

wherein each of the at least two power contacts comprise a bonding surface, a body portion connected to the bonding surface through a first bent portion, and a contact connected to the bonding surface through a second bent portion.

20. The power module according to claim 19 wherein the power module comprises a height that is at least two times thinner than prior art power modules.

21. The power module according to claim 19 wherein the power module comprises a height of 10 mm or less.

22. The power module according to claim 19 further comprising:

a gate and source board provided above the power substrate;

gate drive connectors electrically connected to the gate and source board;

at least two parallel shared current path power devices electrically connected to the at least two power contacts; and

the gate drive connectors and the at least two power contacts are configured to extend through the housing.

23. The power module according to claim 19

wherein the power module is configured to receive one of a plurality of different gate and source board configurations; and

wherein each one of the plurality of different gate and source board configurations comprise a different configuration of a plurality of interconnection channels.

24. The power module according to claim 19 wherein the power module is configured to utilize up to 60% of a total footprint area for conduction of power.

25. The power module according to claim 19 further comprising a plurality of power devices,

wherein the plurality of power devices are evenly spaced across the power substrate.

26. A power module apparatus, comprising:

a base plate defining a topology pattern;

a power substrate provided above the base plate;

at least two power contacts electrically connecting to the power substrate; and

a housing secured to the power substrate,

wherein the power module comprises a height of 10 mm or less.

27. The power module according to claim 26 wherein the height is at least two times thinner than prior art power modules.

28. The power module according to claim 26 further comprising:

a gate and source board provided above the power substrate;

gate drive connectors electrically connected to the gate and source board; and

at least two parallel shared current path power devices electrically connected to the at least two power contacts,

wherein the gate drive connectors and the at least two power contacts are configured to extend through the housing.

Assignments (12)
NOTICE OF GRANT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY Recorded Mar 26, 2026
From: WOLFSPEED, INC.
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 075280/0919 →
RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY COLLATERAL AT REEL/FRAME NO. 64185/0755 Recorded Sep 30, 2025
From: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
To: WOLFSPEED, INC.
Reel/Frame 072989/0001 →
NOTICE OF GRANT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY Recorded Sep 30, 2025
From: WOLFSPEED, INC.
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 072992/0113 →
NOTICE OF GRANT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY Recorded Sep 30, 2025
From: WOLFSPEED, INC.
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 072992/0381 →
NOTICE OF GRANT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY Recorded Sep 30, 2025
From: WOLFSPEED, INC.
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 072992/0467 →
NOTICE OF GRANT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY Recorded Sep 30, 2025
From: WOLFSPEED, INC.
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 072992/0588 →
SECURITY INTEREST Recorded Jun 30, 2023
From: WOLFSPEED, INC.
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION
Reel/Frame 064185/0755 →
CHANGE OF NAME Recorded Feb 14, 2022
From: CREE, INC.
To: WOLFSPEED, INC.
Reel/Frame 059085/0667 →
MERGER Recorded Aug 13, 2021
From: CREE FAYETTEVILLE, INC.
To: CREE, INC.
Reel/Frame 057291/0406 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 5, 2018
From: MCPHERSON, BRICE; KILLEEN, PETER D.; LOSTETTER, ALEX; SHAW, ROBERT; PASSMORE, BRANDON; HOMBERGER, JARED; BERRY, TERRY
To: ARKANSAS POWER ELECTRONICS INTERNATIONAL, INC.
Reel/Frame 047680/0811 →
MERGER AND CHANGE OF NAME Recorded Oct 15, 2018
From: GO RBMS COMPANY; ARKANSAS POWER ELECTRONICS INTERNATIONAL, INC.; CREE FAYETTEVILLE, INC.
To: CREE FAYETTEVILLE, INC.
Reel/Frame 047167/0578 →
CONFIRMATORY LICENSE Recorded Apr 11, 2018
From: CREE, INC
To: UNITED STATES DEPARTMENT OF ENERGY
Reel/Frame 045916/0705 →
Continuity (3)
Continuation 14609629 · Jan 30, 2015
Provisional Application 61933535 · Jan 30, 2014
Related Publication 20160353590A1 · Dec 1, 2016