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US4859520A
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Monolithic substrate for an electronic power component and process for the production thereof
Assignee: Interconnexions Ceramiques SA
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Filing: 1988-03-09
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Granted: 1989-08-22
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Expires: 2008-03-09
Abstract
Abstract The invention concerns a monolithic substrate for an electronic power component which is formed by a sintered stack of layers of dielectric material having an internal system of ducts for the circulation of a cooling fluid. The system is a closed system which opens at the surface of the substrate by way of two orifices which respectively provide for the intake of the pressurized fluid into the internal system of ducts and the removal thereof from said system.
Inventors
- 👤 Jacques Dubuisson
- 👤 Rene Boutterin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:20
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/02; H05K1/0272; H10; H10W; H10W40/00; H10W40/40; H10W40/43; H10W40/47; H05K1/03; H05K1/0306; H05K2201/00; H05K2201/06; H05K2201/064; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24479; Y10T428/24562; Y10T428/24744
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
69 words
The monolithic substrate in an electronic power component, comprising: a sintered stack of layers of dielectric material having a network of integrated electrically conducting connections between said layers; a closed system of cooling fluid ducts within said stack; an inlet orifice extending between said duct system and an exterior surface of said stack; and an outlet orifice extending between said duct system and an exterior surface of said stack.
Claim 2
Dependent Claim
69 words
The monolithic substrate in an electronic power component, comprising: a sintered stack of layers of dielectric material having a network of integrated electrically conducting connections between said layers; a closed system of cooling fluid ducts within said stack; an inlet orifice extending between said duct system and an exterior surface of said stack; and an outlet orifice extending between said duct system and an exterior surface of said stack.
Claim 3
Dependent Claim
37 words
The monolithic substrate of claim 1 wherein said duct system comprises: a plurality of duct segments each extending through a predetermined level with respect to the thickness of said stack; and interconnection means connecting said duct segments.
Claim 4
Dependent Claim
26 words
The monolithic substrate of claim 2 wherein said ducts comprise wells formed by the removal of material in layers through which the fluid is to pass.
Claim 5
Dependent Claim
22 words
The monolithic substrate of claim 2 wherein said interconnection means comprise mutually facing regions of said duct segments for two adjacent layers.
Claim 6
Dependent Claim
32 words
The monolithic substrate according to claim 1 wherein said ducts are defined between two adjacent layers by a residual volume formed at the interface of said adjacent layers along a predetermined pattern.
Claim 7
Dependent Claim
26 words
The monolithic according to claim 1 wherein said ducts are defined by removed material in certain layers of the stack, in accordance with a predetermined pattern.
Claim 8
Dependent Claim
20 words
The monolithic substrate of claim 1 wherein said network of integrated electrically conducting connection and said duct system are interleaved.
References Cited (Backward Citations)
US3361195A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-08-21 | 1993-02-20 | 1993-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-21 | 1997-02-20 | 1997-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-21 | 2001-02-20 | 2001-08-22 | $7700.00 | Window Closed / Lapsed |