US4093971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
D-I-P On island
Assignee: Unisys Corp
•
Filing: 1976-12-10
•
Granted: 1978-06-06
•
Expires: 1996-12-10
Abstract
Abstract A cooling system for integrated circuit packaging of the conventional dual-in-line (DIP) type, including a cold bar which engages the DIPs and is thermally and mechanically connected at both ends to a cooling frame in which a serpentine tubing carries coolant throughout spaced-apart sections thereof. Clamping means clamp the DIPs tight against the cold bar so that heat generated by the DIPs is carried away through the cold bar into the frame sections where the coolant circulates. The cold bar is disposed so that discrete components may be disposed on the island in a manner to save lateral space, and a multiplicity of these DIPs, cold bars, etc. are mounted on the cooling frame to form a DIP island cooling frame and may include, for example, driver buffer logic, random access memories, as well as I/O logic. Each DIP island can be connected to a cooling frame having other types of integrated circuits and housed in the same console or housed along with similar DIP islands in a similar console, as desired.
Inventors
- 👤 Bing-Lun Chu
- 👤 Wunnava Venkata Subbarao
- 👤 Jack Peale
- 👤 Kent McCune
- 👤 Marvin Elroy Steiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:08
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/40; H10W40/47; H05; H05K; H05K7/00; H05K7/20; H05K7/2039; H05K7/20436; H05K7/20445; H10W40/60; H10W40/611; H10W40/70; H10W40/77; H10W40/20; H10W40/231; H10W40/235
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
223 words
A packaging system for electronic equipment comprising at least one island, including: a plurality of integrated circuit packages of the dual-in-line type, connector means mounting said packages, an interconnection medium having electrical conductors thereon, each of the connector means having a plurality of electrical contacts and operatively connected in a predetermined relationship to said interconnection medium and providing respective electrical paths between said integrated circuit packages and said interconnection medium conductors, a cooling frame fastened to said interconnection medium configured such that a plurality of sections of thermally conductive material are situated in parallel, spaced apart relationship across the surface of said interconnection medium and containing fluid conduit means for carrying cooling fluid therethrough, each of said connector means and packages being located in the space between an adjacent pair of said cooling frame sections, but out of engagement with said frame sections, a cold bar disposed transversely of said frame sections and below the top of said frame sections with means on said bar attached to the top of said frame sections so that said means engages said frame sections in thermal conductive relationship, and clamping means urging said packages into thermal contact with said cold bar whereby heat generated by said packages is transferred to said cold bar and to the ends of said bar for transfer to said frame sections.
Claim 2
Dependent Claim
223 words
A packaging system for electronic equipment comprising at least one island, including: a plurality of integrated circuit packages of the dual-in-line type, connector means mounting said packages, an interconnection medium having electrical conductors thereon, each of the connector means having a plurality of electrical contacts and operatively connected in a predetermined relationship to said interconnection medium and providing respective electrical paths between said integrated circuit packages and said interconnection medium conductors, a cooling frame fastened to said interconnection medium configured such that a plurality of sections of thermally conductive material are situated in parallel, spaced apart relationship across the surface of said interconnection medium and containing fluid conduit means for carrying cooling fluid therethrough, each of said connector means and packages being located in the space between an adjacent pair of said cooling frame sections, but out of engagement with said frame sections, a cold bar disposed transversely of said frame sections and below the top of said frame sections with means on said bar attached to the top of said frame sections so that said means engages said frame sections in thermal conductive relationship, and clamping means urging said packages into thermal contact with said cold bar whereby heat generated by said packages is transferred to said cold bar and to the ends of said bar for transfer to said frame sections.
Claim 3
Dependent Claim
57 words
A packaging system as defined in claim 1 wherein said cold bar is provided with a pair of flanges one on each end thereof which are attached to the frame sections and space the cold bar a sufficient distance from the top of the frame sections to permit said integrated circuit packages to straddle said cold bar.
Claim 4
Dependent Claim
45 words
The packaging system as defined in claim 2 wherein said clamping means comprises a metallic bar of a length substantially equal to the length of said cold bar and having spring means thereon for urging said integrated circuit packages into engagement with said cold bar.
Claim 5
Dependent Claim
65 words
The packaging system as defined in claim 3 wherein said bar of said clamping means further has flanges on each end adapted to overlay coextensively with the flanges of said cold bar, and fastening means engaging the flanges of said cold bar and the bar of said clamping means and further engaging said spaced apart frame sections for fastening said bars to said frame sections.
Claim 6
Dependent Claim
36 words
The packaging system as defined in claim 4 wherein said conduit means comprises continuous tubing connecting said frame sections and arranged in a serpentine path for maintaining said integrated circuit packages at a substantially uniform temperature.
Claim 7
Dependent Claim
45 words
The packaging system as defined in claim 5 wherein said cold bar is spaced from said interconnection medium so as to allow discrete components to be mounted on said interconnection medium between said medium and said cold bar to save lateral space within said frame.
References Cited (Backward Citations)
US3946276A
Cited
US4037270A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |