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Patent US4833022A successfully refreshed from Google Patents.
US4833022A
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Polymer/copper laminate and method for fabrication thereof
Assignee: Olin Corp
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Filing: 1987-08-20
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Granted: 1989-05-23
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Expires: 2007-08-20
Abstract
Abstract Polymer/copper laminates and a method for their manufacture employing smooth, untreated, wrought-copper and characterized by cohesive and adhesive strength in the resulting laminates.
Inventors
- 👤 William G. Bridges
- 👤 Thomas A. Armer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:22
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/0353; H05K1/036; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; H05K1/032; H05K1/0326; H05K1/034; H05K1/0346; H05K2201/00; H05K2201/01; H05K2201/0104; H05K2201/0129; H05K2201/0133; H05K2201/0137; H05K2201/0141; H05K2201/015; H05K2201/0158; H05K2201/02; H05K2201/0203; H05K2201/0206; H05K2201/0209; H05K2201/0242; H05K2201/0251; H05K2201/0275; H05K2201/0278; H05K2201/03; H05K2201/0332; H05K2201/0335; H05K2201/0355; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/266; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31678; Y10T428/31692; Y10T428/31696; Y10T428/31699
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
80 words
A polymer/copper laminate produced by a method comprising contacting a surface of smooth, untreated, wrought-copper with a surface of a layer of polymer under lamination conditions, said polymer being thermoplastic and free of an adhesion promoter, said polymer being a fluoropolymer selected from the group consisting of perfluoroalkoxyvinyl ether copolymer, perfluorinated poly(ethylene-co-propylene), and poly(ethylene-co-tetrafluoroethylene), said laminate being polyimide-free, said method being free of any discharge pretreatment of said surface of said layer of polymer prior to or during the lamination.
Claim 2
Dependent Claim
80 words
A polymer/copper laminate produced by a method comprising contacting a surface of smooth, untreated, wrought-copper with a surface of a layer of polymer under lamination conditions, said polymer being thermoplastic and free of an adhesion promoter, said polymer being a fluoropolymer selected from the group consisting of perfluoroalkoxyvinyl ether copolymer, perfluorinated poly(ethylene-co-propylene), and poly(ethylene-co-tetrafluoroethylene), said laminate being polyimide-free, said method being free of any discharge pretreatment of said surface of said layer of polymer prior to or during the lamination.
Claim 3
Dependent Claim
22 words
The laminate of claim 1 wherein said polymer is selected from the group consisting of: perfluoroalkoxyvinyl ether copolymer, perfluorinated poly(ethylene-co-propylene), and poly(ethylene-co-tetrafluoroethylene).
Claim 4
Dependent Claim
20 words
The laminate of claim 1 wherein said smooth, wrought-copper has a thickness of between about 25 and about 50 microns.
Claim 5
Dependent Claim
21 words
The laminate of claim 1 wherein said layer of polymer has a thickness of between about 50 and about 150 microns.
Claim 6
Dependent Claim
32 words
The laminate of claim 1 wherein said layer of polymer is free of filler at said surface thereof but additionally contains a filler in an interior portion of said layer of polymer.
Claim 7
Dependent Claim
37 words
The laminate of claim 5 wherein said filler is selected from the group consisting of: fumed SiO 2 , glass fibers, ceramic particles, fibers, particles, whiskers and beads of fumed SiO 2 , glass, ceramics, and polyaramid.
Claim 8
Independent Claim
39 words
A method for fabricating a polymer/copper laminate by contacting a surface of smooth, untreated, wrought-copper with a fluoropolymer layer free of any surface discharge pretreatment under lamination conditions sufficient to effect formation of said laminate, said laminate being polyimide-free.
Claim 9
Independent Claim
39 words
A method for fabricating a polymer/copper laminate by contacting a surface of smooth, untreated, wrought-copper with a fluoropolymer layer free of any surface discharge pretreatment under lamination conditions sufficient to effect formation of said laminate, said laminate being polyimide-free.
Claim 10
Dependent Claim
22 words
The method of claim 7 wherein said polymer is selected from the group consisting of: perfluoroalkoxyvinyl ether copolymer, perfluorinated poly(ethylene-co-propylene), and poly(ethylene-co-tetrafluoroethylene).
Claim 11
Dependent Claim
20 words
The method of claim 7 wherein said smooth, wrought-copper has a thickness of between about 25 and about 50 microns.
Claim 12
Dependent Claim
31 words
The method of claim 7 wherein said polymer layer is free of filler at said surface thereof but additionally contains a filler in a interior portion of said layer of polymer.
Claim 13
Dependent Claim
37 words
The method of claim 10 wherein said filler is selected from the group consisting of: fumed SiO 2 , glass fibers, ceramic particles, fibers, particles, whiskers and beads of fumed SiO 2 , glass, ceramics, and polyaramid.
Claim 14
Dependent Claim
23 words
The method of claim 7 wherein said contacting is carried out at a temperature of between about 350° F. and about 800° F.
Claim 15
Dependent Claim
23 words
The method of claim 7 wherein said contacting is carried out at a pressure of between about 1 psig and about 10,000 psig.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-22 | 1992-11-21 | 1993-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-22 | 1996-11-21 | 1997-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-22 | 2000-11-21 | 2001-05-23 | $7700.00 | Window Closed / Lapsed |