Patent US2269564A successfully refreshed from Google Patents.
Patent US4950181A successfully refreshed from Google Patents.
US4950181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerated plug-in module
Assignee: NCR Voyix Corp
•
Filing: 1988-07-28
•
Granted: 1990-08-21
•
Expires: 2008-07-28
Abstract
Abstract A module for insulatively housing and refrigerating a semiconductor device which is designed to be plugged into a printed circuit board within a conventional air-cooled electronic system. The plug-in module is designed such that the semiconductor device within the module can be operated at temperatures from -200° C. down to the temperatures of liquid helium, while a short distance below the housing portion of the module the plug-in conductors connect to a connector on a conventionally cooled processor board. This is accomplished without frost or other type of troublesome moisture forming on the plug-in conductors.
Inventors
- 👤 Warren W. Porter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:18
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/30; H10W40/305
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
149 words
A low thermal conductance electrical connection apparatus for use between a lead of a semiconductor device and a receptacle of a connector mounted upon a printed circuit board, comprising: a first member having a receptacle on a first end for receiving said lead of said semiconductor device and a second end opposite said first end; an electrical conductor member, including: a thin-walled stainless steel tube member having a low thermal conductance; and a coating, that is thin relative to the thickness of the wall of said stainless steel tube member, of a metal having a high electrical conductance; said electrical conductor member having a first end connected to said second end of said first member; and a second end of said electrical conductor member connected to the receptacle of the printed circuit board connector; whereby said electrical conductor member has a good electrical conductance and a low thermal conductance.
Claim 2
Dependent Claim
149 words
A low thermal conductance electrical connection apparatus for use between a lead of a semiconductor device and a receptacle of a connector mounted upon a printed circuit board, comprising: a first member having a receptacle on a first end for receiving said lead of said semiconductor device and a second end opposite said first end; an electrical conductor member, including: a thin-walled stainless steel tube member having a low thermal conductance; and a coating, that is thin relative to the thickness of the wall of said stainless steel tube member, of a metal having a high electrical conductance; said electrical conductor member having a first end connected to said second end of said first member; and a second end of said electrical conductor member connected to the receptacle of the printed circuit board connector; whereby said electrical conductor member has a good electrical conductance and a low thermal conductance.
Claim 3
Dependent Claim
34 words
A low thermal conductance electrical connection apparatus as set forth in claim 1, wherein said second end of said first member is overlapped and welded to said first end of said electrical conductor member.
Claim 4
Dependent Claim
34 words
A low thermal conductance electrical connection apparatus as set forth in claim 1, wherein said second end of said first member is overlapped and crimped to said first end of said electrical conductor member.
Claim 5
Dependent Claim
36 words
A low thermal conductance electrical connection apparatus as set forth in claim 1, wherein said second end of said first member has a second receptacle thereon for receiving said first end of said electrical conductor member.
Claim 6
Dependent Claim
20 words
A low thermal conductance electrical connection apparatus as set forth in claim 2, wherein the metal coating is plated gold.
Claim 7
Dependent Claim
20 words
A low thermal conductance electrical connection apparatus as set forth in claim 3, wherein the metal coating is plated gold.
Claim 8
Dependent Claim
20 words
A low thermal conductance electrical connection apparatus as set forth in claim 4, wherein the metal coating is plated gold.
References Cited (Backward Citations)
US3289046A
Cited
US3412566A
Cited
US3585355A
Cited
US3740839A
Cited
US4138183A
Cited
US4118947A
Cited
US4279292A
Cited
US4233645A
Cited
US4341432A
Cited
US4402185A
Cited
US4464005A
Cited
US4587594A
Cited
US4734820A
Cited
US4800422A
Cited
US4805420A
Cited
JPH09372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-20 | 1994-02-19 | 1994-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-20 | 1998-02-19 | 1998-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-20 | 2002-02-19 | 2002-08-21 | $7700.00 | Window Closed / Lapsed |