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US4499152A
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Metal-clad laminate construction
Assignee: General Electric Co
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Filing: 1983-11-07
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Granted: 1985-02-12
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Expires: 2003-11-07
Abstract
Abstract A metal-clad laminate having special utility in the production of high resolution printed circuit patterns and preparation of the laminate are described. The laminate preferably comprises a resin-bonded, glass-reinforced substrate, a layer of coupling agent covering and bonded to a major surface of the substrate, a layer of ultra-thin copper adjacent the layer of coupling agent, and a composite bonding layer disposed between the copper layer and the layer of coupling agent. The composite bonding layer comprises copper alloyed with at least one non-copper metal and oxide material of the non-copper metal.
Inventors
- 👤 Robert W. Green
- 👤 Delton A. Grey, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:39
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/02; H05K3/022; H05K3/025; B; B32; B32B; B32B15/00; B32B15/20; B32B15/04; B32B15/08; H05K3/10; H05K3/20; H05K3/38; H05K3/389; B32B2262/00; B32B2262/10; B32B2262/101; B32B2305/00; B32B2305/08; B32B2311/00; B32B2311/16; B32B2311/20; B32B2457/00; B32B2457/08; H05K2201/00; H05K2201/03; H05K2201/0302; H05K2201/0317; H05K2201/0332; H05K2201/0335; H05K2201/0355; H05K2203/00; H05K2203/01; H05K2203/0147; H05K2203/0152; H05K2203/03; H05K2203/0315; Y; Y10; Y10S; Y10S428/00; Y10S428/901
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
75 words
A metal-clad laminate comprising a substrate, an interacted coupling agent layer extending over and bonded to a major surface of said substrate, a layer of ultra-thin copper adjacent said layer of interacted coupling agent and a composite bonding layer interconnecting said copper layer and said interacted coupling agent layer, said composite bonding layer being substantially free of copper oxide and comprising regions of copper alloyed with a second metal and oxide of said second metal.
Claim 2
Dependent Claim
75 words
A metal-clad laminate comprising a substrate, an interacted coupling agent layer extending over and bonded to a major surface of said substrate, a layer of ultra-thin copper adjacent said layer of interacted coupling agent and a composite bonding layer interconnecting said copper layer and said interacted coupling agent layer, said composite bonding layer being substantially free of copper oxide and comprising regions of copper alloyed with a second metal and oxide of said second metal.
Claim 3
Dependent Claim
18 words
The metal-clad laminate of claim 1 wherein the substrate is a sheet of resin reinforced with glass fibers.
Claim 4
Dependent Claim
20 words
The metal-clad laminate of claim 1 wherein the second metal is selected from the group consisting of zinc and tin.
Claim 5
Dependent Claim
18 words
The metal-clad laminate of claim 1 wherein the coupling agent layer contains a plurality of coupling agent materials.
Claim 6
Dependent Claim
21 words
The metal-clad laminate of claim 1 wherein a carrier sheet is adhered to the surface of the layer of ultra-thin copper.
Claim 7
Dependent Claim
21 words
The metal-clad laminate of claim 1 wherein oxide of an additional non-copper metal is also present in the composite bonding layer.
Claim 8
Dependent Claim
26 words
The metal-clad laminate of claim 6 wherein the additional non-copper metal is selected from the group consisting of tin, zinc, manganese, magnesium, nickel, aluminum and calcium.
Claim 9
Dependent Claim
12 words
The metal-clad laminate of claim 1 wherein the coupling agent is organosilane-based.
Claim 10
Dependent Claim
18 words
The metal-clad laminate of claim 8 wherein the second metal is tin and the coupling agent is γ-aminopropyltriethoxysilane-based.
Claim 11
Dependent Claim
19 words
The metal-clad laminate of claim 8 wherein the second metal is zinc and the coupling agent is N-β-(N-vinylbenzyl-amino)ethyl-γ-aminopropyltrimethoxysilane.monohydrogen chloride-based.
Claim 12
Independent Claim
126 words
The method of making a copper-clad laminate comprising the steps of: (a) maintaining a carrier sheet with the temperature of a major surface thereof in a preselected temperature range while forming a copper film on said major surface by vapor depositing copper directly thereon, (b) depositing a layer of an oxide material over said copper film under conditions of temperature and pressure substantially precluding the formation of copper oxide, said oxide material comprising an oxide of a non-copper metal, (c) coating said oxide material layer with a solution containing coupling agent, (d) drying said coupling agent and (e) laminating the resulting assembly to a major surface of a substrate at elevated temperature and pressure, said substrate major surface having binding sites available for said coupling agent.
Claim 13
Independent Claim
126 words
The method of making a copper-clad laminate comprising the steps of: (a) maintaining a carrier sheet with the temperature of a major surface thereof in a preselected temperature range while forming a copper film on said major surface by vapor depositing copper directly thereon, (b) depositing a layer of an oxide material over said copper film under conditions of temperature and pressure substantially precluding the formation of copper oxide, said oxide material comprising an oxide of a non-copper metal, (c) coating said oxide material layer with a solution containing coupling agent, (d) drying said coupling agent and (e) laminating the resulting assembly to a major surface of a substrate at elevated temperature and pressure, said substrate major surface having binding sites available for said coupling agent.
Claim 14
Dependent Claim
41 words
The method of claim 11 including the additional step of heating the resulting laminate to a temperature in the range of from about 125° C. to about 300° C. for a time ranging from about 20 seconds to about several minutes.
Claim 15
Dependent Claim
22 words
The method of claim 11 including the additional step of aging the resulting laminate for a period of at least 4 days.
Claim 16
Dependent Claim
18 words
The method of claim 11 including the additional step of stripping the carrier sheet from the resulting laminate.
Claim 17
Dependent Claim
12 words
The product resulting from the practice of the method of claim 11.
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) | 1988-02-12 | 1988-08-13 | 1989-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-12 | 1992-08-13 | 1993-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-12 | 1996-08-13 | 1997-02-12 | $7700.00 | Window Closed / Lapsed |