EP0341950A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Flat cooling structure of integrated circuit
Assignee: NEC Corp
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Filing: 1989-05-08
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Granted: —
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Expires: 2009-05-08
Abstract
Abstract A circuit assembly with circulation of coolant. A plurality of chips (22) of integrated circuit are arranged on a substrate (21) separately from each other in rows and columns. A circulating unit disposed on the substrate and having a planer shape circulates coolant horizontally therethrough. The circulating unit has within its bottom side a plurality of cells (24) arranged in rows and columns correspondingly to the plurality of chips. Each individual cell is thermally connected to the corresponding individual chip so as to receive therefrom heat generated thereby. The circulating unit includes a distributer for distributing to the respective cells the circulated coolant effective to absorb the heat received in the respective cells.
Inventors
- 👤 Kazuhiko Umezawa
- 👤 Jun Kubokawa
- 👤 Toshiaki Komatsu
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 06:43
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/40; H10W40/47; H10W40/475; H10W72/00; H10W72/071; H10W72/072; H10W72/07251; H10W72/20
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
114 words
A circuit assembly with circulation of coolant, characterized by: a substrate; a plurality of chips of integrated circuit arranged on said substrate separately from each other in rows and columns; and circulating means disposed on said substrate and having a planer shape for circulating coolant horizontally therethrough, said circulating means having within its bottom side a plurality of cells arranged in rows and columns correspondingly to said plurality of chips, each individual cell being thermally connected to said corresponding individual chip so as to receive therefrom heat generated thereby, said circulating means including distributing means for distributing to said respective cells said circulated coolant effective to absorb said heat received in said respective cells.
Claim 2
Dependent Claim
114 words
A circuit assembly with circulation of coolant, characterized by: a substrate; a plurality of chips of integrated circuit arranged on said substrate separately from each other in rows and columns; and circulating means disposed on said substrate and having a planer shape for circulating coolant horizontally therethrough, said circulating means having within its bottom side a plurality of cells arranged in rows and columns correspondingly to said plurality of chips, each individual cell being thermally connected to said corresponding individual chip so as to receive therefrom heat generated thereby, said circulating means including distributing means for distributing to said respective cells said circulated coolant effective to absorb said heat received in said respective cells.
Claim 3
Dependent Claim
41 words
A circuit assembly as claimed in claim 1, characterized in that each individual cell has a bottom wall opposed in spaced relation to a top face of said corresponding chip so as to receive said generated heat through said bottom wall.
Claim 4
Dependent Claim
45 words
A circuit assembly as claimed in claim 2, characterized by a thermally conductive and elastic film interposed between said bottom wall of cell and said top face of chip opposed to each other for conducting said generated heat from said chip to said corresponding cell.
Claim 5
Dependent Claim
45 words
A circuit assembly as claimed in claim 1, characterized in that each individual cell has a bottom peripheral edge defining a bottom opening and in seal contact with a top surface of said substrate so as to accommodate each individual chip in said corresponding cell.
Claim 6
Dependent Claim
54 words
A circuit assembly as claimed in claim 2, characterized in that each individual cell has dissipating means formed on an inner face of said bottom wall of cell and extending upwardly into an inner space of said cell for dissipating said received heat to said inner space to which said circulated coolant is distributed.
Claim 7
Dependent Claim
30 words
A circuit assembly as claimed in claim 5, characterized in that said dissipating means comprises a plurality of protrusions disposed vertically from said inner face of bottom wall of cell.
Claim 8
Dependent Claim
30 words
A circuit assembly as claimed in claim 5, characterized in that said dissipating means comprises a plurality of fins arranged radially on said inner face of bottom wall of cell.
Claim 9
Dependent Claim
38 words
A circuit assembly as claimed in claim 7, characterized in that said plurality of fins has a radial center deviated from a central portion of said bottom wall of chip and to which said distributed coolant is directed.
Claim 10
Dependent Claim
61 words
A circuit assembly as claimed in claim 1, characterized in that said distributing means includes a plurality of charging nozzles disposed into respective cells for charging a stream of said circulated coolant to strike against each inner face of bottom wall of said respective cells, and a plurality of discharging openings formed through respective cells for discharging therefrom said charged coolant.
Claim 11
Dependent Claim
58 words
A circuit assembly as claimed in claim 9, characterized in that said distributing means includes connecting means for hydraulicly connecting said plurality of cells in series to each other along each row thereof through said charging nozzles and discharging openings such that said coolant is circulated through each row of said cells from first one to last one.
Claim 12
Dependent Claim
44 words
A circuit assembly as claimed in claim 10, characterized in that said connecting means comprises a plurality of hydraulic passage means, each communicating between a charging nozzle disposed in one cell and a discharging opening formed through another cell adjacent to said one cell.
Claim 13
Dependent Claim
17 words
A circuit assembly as claimed in claim 11, characterized in that each passage means comprises a pipe.
Claim 14
Dependent Claim
22 words
A circuit assembly as claimed in claim 11, characterized in that each passage means comprises a groove cut in said circulating means.
Claim 15
Dependent Claim
22 words
A circuit assembly as claimed in claim 11, characterized in that each passage means comprises a compartment cut in said circulating means.
Claim 16
Dependent Claim
33 words
A circuit assembly as claimed in claim 12, characterized in that said circulating means has a suction compartment for accommodating therein said pipes and storing therein said coolant effective to cool said pipes.
Claim 17
Dependent Claim
58 words
A circuit assembly as claimed in claim 9, characterized in that said distributing means includes introducing means communicating in parallel with said charging nozzles for introducing said circulated coolant concurrently thereto, and collecting means communicating in parallel with said discharging openings for collecting said discharged coolant such that said coolant is circulated in parallel through said respective cells.
Claim 18
Dependent Claim
49 words
A circuit assembly as claimed in claim 2, characterized in that said circulating means includes a bottom planer section formed in its top face side with cut cavities, and a top planer section disposed tightly on said bottom section to close said cut cavities to thereby constitute said cells.
Claim 19
Dependent Claim
39 words
A circuit assembly as claimed in claim 17, characterized in that said top section has a suction compartment for receiving therein said coolant from outside, and a collecting compartment for collecting therein said coolant to discharge said coolant outside.
Claim 20
Dependent Claim
40 words
A circuit assembly as claimed in claim 4, characterized in that said circulating means includes a bottom planer section formed in its bottom face side with cut cavities and disposed in face contact with said substrate to constitute said cells.
References Cited (Backward Citations)
No citation records indexed.
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