US5285351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling structure for integrated circuits
Assignee: NEC Corp
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Filing: 1992-06-01
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Granted: 1994-02-08
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Expires: 2012-06-01
Abstract
Abstract A cooling structure cools integrated circuits (I.C.'s) by circulating a liquid coolant in the vicinity of the I.C.'s and causing the heat generated by the I.C.'s to be conducted to the liquid coolant. The cooling structure includes a wiring substrate, an I.C. mounted on the wiring substrate, storage means for a liquid coolant having an opening in its bottom and an inlet and an outlet for the liquid coolant at its top, adhering means for fastening together the bottom of the storage means and the heat radiating face of the I.C., and spraying means for directly spraying the liquid coolant on the heat radiating face of the I.C. through the opening.
Inventors
- 👤 Hironobu Ikeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:52
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/70; H10W40/77; H10W40/40; H10W40/47; H10W40/475; H10W72/00; H10W72/071; H10W72/072; H10W72/07251; H10W72/20; H10W72/851; H10W72/874; H10W72/877
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
91 words
A cooling structure for an integrated circuit comprising: a wiring substrate; an integrated circuit mounted on said wiring substrate; storage means for storing a liquid coolant, having an inlet and an outlet for said liquid coolant at the top thereof and an opening at the bottom thereof; adhering means fastening together said bottom of said storage means to a heat radiating face of said integrated circuit; and spraying means, in said storage means, for directly spraying said liquid coolant on said heat radiating face of said integrated circuit through said opening.
Claim 2
Dependent Claim
91 words
A cooling structure for an integrated circuit comprising: a wiring substrate; an integrated circuit mounted on said wiring substrate; storage means for storing a liquid coolant, having an inlet and an outlet for said liquid coolant at the top thereof and an opening at the bottom thereof; adhering means fastening together said bottom of said storage means to a heat radiating face of said integrated circuit; and spraying means, in said storage means, for directly spraying said liquid coolant on said heat radiating face of said integrated circuit through said opening.
Claim 3
Dependent Claim
103 words
A cooling structure for an integrated circuit, comprising: a wiring substrate; an integrated circuit mounted on said wiring substrate; storage means for storing a liquid coolant, said storage means including a first member whose inside is hollow and a second member provided at the top of said first member, said second member having an inlet and an outlet for said liquid coolant; adhering means fastening together the bottom of said first member to a heat radiating face of said integrated circuit; and spraying means, in said storage means, for directly spraying said liquid coolant on said heat radiating face of said integrated circuit.
Claim 4
Dependent Claim
103 words
A cooling structure for an integrated circuit, comprising: a wiring substrate; an integrated circuit mounted on said wiring substrate; storage means for storing a liquid coolant, said storage means including a first member whose inside is hollow and a second member provided at the top of said first member, said second member having an inlet and an outlet for said liquid coolant; adhering means fastening together the bottom of said first member to a heat radiating face of said integrated circuit; and spraying means, in said storage means, for directly spraying said liquid coolant on said heat radiating face of said integrated circuit.
Claim 5
Dependent Claim
210 words
A cooling structure for integrated circuits, comprising: a wiring substrate; a plurality of integrated circuits mounted on said wiring substrate; a substrate frame holding said wiring substrate; a cooling block which includes a plurality of storage means for storing a liquid coolant, said cooling block having openings in the bottom portions thereof corresponding to the respective positions of said plurality of integrated circuits on said wiring substrate, and a plurality of spraying means, in said cooling block, for directly spraying said liquid coolant on heat radiating faces of said integrated circuits through said openings; a plurality of adhering means fastening together said heat radiating faces of said integrated circuits and the bottom of said cooling block; and a header arranged on the top face of said cooling block and provided with a coolant entrance for letting in said liquid coolant, a coolant exit for letting out said liquid coolant, a coolant inflow path for distributing said liquid coolant into a plurality of flow channels in the vicinity of said coolant entrance, a coolant discharge path for collecting said liquid coolant discharged from said plurality of flow channels in the vicinity of said coolant exit, and supply means for supplying said liquid coolant into said storage means in said cooling block.
Claim 6
Dependent Claim
210 words
A cooling structure for integrated circuits, comprising: a wiring substrate; a plurality of integrated circuits mounted on said wiring substrate; a substrate frame holding said wiring substrate; a cooling block which includes a plurality of storage means for storing a liquid coolant, said cooling block having openings in the bottom portions thereof corresponding to the respective positions of said plurality of integrated circuits on said wiring substrate, and a plurality of spraying means, in said cooling block, for directly spraying said liquid coolant on heat radiating faces of said integrated circuits through said openings; a plurality of adhering means fastening together said heat radiating faces of said integrated circuits and the bottom of said cooling block; and a header arranged on the top face of said cooling block and provided with a coolant entrance for letting in said liquid coolant, a coolant exit for letting out said liquid coolant, a coolant inflow path for distributing said liquid coolant into a plurality of flow channels in the vicinity of said coolant entrance, a coolant discharge path for collecting said liquid coolant discharged from said plurality of flow channels in the vicinity of said coolant exit, and supply means for supplying said liquid coolant into said storage means in said cooling block.
Claim 7
Dependent Claim
18 words
The cooling structure of claim 1, wherein said adhering means is either an epoxy or a silicon-based adhesive.
Claim 8
Dependent Claim
15 words
The cooling structure of claim 1, wherein said liquid coolant is an electrically non-insulative liquid.
Claim 9
Dependent Claim
18 words
The cooling structure of claim 2, wherein said adhering means is either an epoxy or a silicon-based adhesive.
Claim 10
Dependent Claim
15 words
The cooling structure of claim 2, wherein said liquid coolant is an electrically non-insulative liquid.
Claim 11
Dependent Claim
18 words
The cooling structure of claim 3, wherein said adhering means is either an epoxy or a silicon-based adhesive.
Claim 12
Dependent Claim
15 words
The cooling structure of claim 3, wherein said liquid coolant is an electrically non-insulative liquid.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-02-07 | 1997-08-09 | 1998-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-02-07 | 2001-08-09 | 2002-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-02-07 | 2005-08-09 | 2006-02-08 | $7700.00 | Window Closed / Lapsed |