IP Library Granted Patent US 12,622,267
Granted Patent B2
US 12,622,267 · App. 18/745,743 · Granted May 5, 2026

Array of heat-sinked power semiconductors

Inventor: Jeffrey J. Ronning (Grosse Pointe Farms, MI)
Assignee: AMERICAN AXLE & MANUFACTURING, INC.
H01L23/3672H01L23/36H01L25/0652H01L2225/06562H01L2225/06568
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Quick Facts
Patent No.
US 12,622,267
App. No.
18/745,743
Granted
May 5, 2026
Kind
B2
Abstract

An array of heat-sinked power semiconductors that includes a power semiconductor and a heat sink. The power semiconductor has a power semiconductor die, a plurality of first terminals and a second terminal. The power semiconductor die has a plurality of semiconductor terminals. Each of the first terminals is electrically coupled to an associated one of the semiconductor terminals. The second terminal is a surface mount terminal and is electrically coupled to one of the first terminals. The heat sink has a heat sink body and a plurality of fins. The heat sink body has a base and an exterior surface. The base is fixedly coupled directly to the surface mount terminal. The exterior surface has a fin mount portion to which the fins extend. At least a portion of the fin-mount portion is oriented non-parallel to base.

Claims (13)

1 . An array of heat-sinked power semiconductors comprising:

a power semiconductor having a power semiconductor die, a plurality of first terminals and a second terminal, the power semiconductor die having a plurality of semiconductor terminals, each of the first terminals being electrically coupled to an associated one of the semiconductor terminals, the second terminal being a surface mount terminal and electrically coupled to one of the first terminals; and

a heat sink having a heat sink body and a plurality of sets of fins, the heat sink body having a base surface entirely formed with a plane parallel to and fixedly coupled directly to the surface mount terminal, a pair of first faces opposite one another along a linear apex such that the sets of fins project away from the heat sink body in different directions, and a pair of second faces opposite and parallel to one another,

wherein the heat sink body is formed with a closed wedge-shape by all of the faces such as the base surface, the pair of first faces and the pair of second faces.

2 . The array of heat-sinked power semiconductors of claim 1 , wherein the first faces are boundary surfaces of the heat sink base and terminate at respective boundary surface planes.

3 . The array of heat-sinked power semiconductors of claim 1 , wherein the heat sink body has two boundary surfaces.

4 . The array of heat-sinked power semiconductors of claim 1 , wherein at least one of the sets of fins is unitarily and integrally formed with the heat sink body.

5 . An array of heat-sinked power semiconductors comprising:

a power semiconductor having a power semiconductor die, a plurality of first terminals and a second terminal, the power semiconductor die having a plurality of semiconductor terminals, each of the first terminals being electrically coupled to an associated one of the semiconductor terminals, the second terminal being a surface mount terminal and electrically coupled to one of the first terminals; and

a heat sink having a heat sink body and a plurality of fins, the heat sink body having a base and a plurality of exterior surfaces, which form a closed wedge-shape, the base being fixedly coupled directly to the surface mount terminal and at least one of the plurality of exterior surfaces having a fin mount portion to which the fins extend, at least a portion of the fin-mount portion being non-parallel to base,

wherein the fin-mount portion includes first and second planar segments intersecting one another.

6 . The array of heat-sinked power semiconductors of claim 5 , wherein the first and second planar segments that are not parallel to one another.

7 . The array of heat-sinked power semiconductors of claim 5 , wherein at least a portion of the fins is unitarily and integrally formed with the heat sink body.

Assignments (3)
SECURITY INTEREST Recorded Oct 3, 2025
From: AMERICAN AXLE MANUFACTURING, INC.; MD INVESTORS CORPORATION; AAM NORTH AMERICA, INC.
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT
Reel/Frame 073005/0001 →
SECURITY INTEREST Recorded Apr 1, 2025
From: AMERICAN AXLE & MANUFACTURING, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 070700/0839 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 19, 2024
From: RONNING, JEFFREY J.
To: AMERICAN AXLE & MANUFACTURING, INC.
Reel/Frame 067768/0583 →
Continuity (4)
Continuation 18388873 · Nov 13, 2023
Continuation PCTUS2023025800 · Jun 21, 2023
Provisional Application 63354262 · Jun 22, 2022
Related Publication 20240339374A1 · Oct 10, 2024
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