US5586004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mounting assembly for power semiconductors
Assignee: Wavedriver Ltd
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Filing: 1994-01-20
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Granted: 1996-12-17
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Expires: 2014-01-20
Abstract
Abstract A mounting assembly for power semiconductors comprises a plurality of modules (20) arranged in a symmetrical arrangement around a central axis. Each module has one or more heat sink substrate surfaces (201,203) for the mounting of semiconductor components (205) and an internal passage (202) for passing a fluid cooling medium therethrough in order to cool the semiconductor components. The assembly may comprise a prismatic body (24) providing the substrate surfaces (243).
Inventors
- 👤 Ross M. Green
- 👤 Michael J. Kellaway
- 👤 David J. Shemmans
- 👤 David J. McShane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:06
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/20; H05K7/20536; H05K7/2089; H05K7/20909; H05K7/20918; B; B60; B60L; B60L2210/00; B60L2210/20; B60L2240/00; B60L2240/40; B60L2240/52; B60L2240/526; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/72
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
76 words
A mounting assembly for power semiconductors, the assembly comprising: a plurality of plate-like modules arranged around a central axis, each module comprising; at least two walls, at least one of said walls defining a flat major surface providing a heat sink for the direct mounting of semiconductor components thereon; and an internal passage defined between said walls for the passage of a fluid cooling medium therethrough in order to cool semiconductor components mounted on said surface.
Claim 2
Dependent Claim
76 words
A mounting assembly for power semiconductors, the assembly comprising: a plurality of plate-like modules arranged around a central axis, each module comprising; at least two walls, at least one of said walls defining a flat major surface providing a heat sink for the direct mounting of semiconductor components thereon; and an internal passage defined between said walls for the passage of a fluid cooling medium therethrough in order to cool semiconductor components mounted on said surface.
Claim 3
Dependent Claim
41 words
An assembly according to claim 1, wherein each of said walls has a contoured rear surface, disposed radially inwardly into the respective passage, so as to provide an increased surface area over which coolant may flow in order to increase cooling.
Claim 4
Dependent Claim
23 words
An assembly according to claim 2, wherein the contours are in the form of grooves which extend in the direction of said axis.
Claim 5
Dependent Claim
15 words
An assembly according to claim 1, wherein the modules are interlocked directly to one another.
Claim 6
Dependent Claim
14 words
An assembly according to claim 1, wherein the assembly is substantially hexagonal in cross-section.
Claim 7
Dependent Claim
44 words
An assembly according to claim 1, wherein each module has two said walls which each define respective flat major surfaces providing a heat sink for the direct mounting of semiconductor components thereon, one of said walls being provided on each side of said module.
Claim 8
Dependent Claim
17 words
An assembly according to claim 6, further comprising electronic components mounted on each side of each module.
Claim 9
Dependent Claim
12 words
An assembly according to claim 6, wherein each module comprises an extrusion.
Claim 10
Dependent Claim
39 words
An assembly according to claim 6, wherein the flat major surfaces of each module are parallel to each other and the modules are cylindrically arranged in axial alignment about a central axis parallel to each of said flat surfaces.
Claim 11
Dependent Claim
11 words
An assembly according to claim 1, wherein the walls are copper.
Claim 12
Dependent Claim
35 words
An assembly according to claim 1, further comprising a pair of end manifolds, said manifolds being adapted to retain said modules and for feeding coolant fluid to and from the internal passages in said modules.
Claim 13
Dependent Claim
19 words
An assembly according to claim 1, wherein each module comprises an extrusion having a pair of passages defined therethrough.
Claim 14
Dependent Claim
17 words
An assembly according to any of claim 1, wherein the modules are interconnected along their adjacent edges.
Claim 15
Dependent Claim
21 words
An assembly according to claim 1, further comprising a central core disposed within said arrangement of modules, in supporting relation thereto.
Claim 16
Dependent Claim
20 words
An assembly according to claim 14, wherein the core is substantially cylindrical, said core having a number of radial flanges.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-12-17 | 2000-06-17 | 2000-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-12-17 | 2004-06-17 | 2004-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-12-17 | 2008-06-17 | 2008-12-17 | $7700.00 | Window Closed / Lapsed |