US6296949B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper coated polyimide with metallic protective layer
Assignee: Gould Electronics Inc
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Filing: 1999-09-16
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Granted: 2001-10-02
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Expires: 2019-09-16
Abstract
Abstract A component for use in manufacturing printed circuits, comprising: a laminate that in a finished printed circuit constitutes a functional element, the laminate comprised of: a film substrate formed of a first polymeric material; at least one layer of a flash metal applied to a first side of the film substrate, and at least one layer of copper on the at least one layer of a flash metal, the layer of copper having an essentially uncontaminated exposed surface facing away from the at least one layer of flash metal; and a planar layer of metal that constitutes a discardable element, the layer of metal having an essentially uncontaminated surface that is inert to copper, the laminate being attached to the layer of metal at its borders to define a substantially uncontaminated central zone inwardly of the edges of the sheet that is unjoined at the interfaces.
Inventors
- 👤 Tad Bergstresser
- 👤 Charles A. Poutasse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:39
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/007; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; H05K3/02; H05K3/022; H05K3/025; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/032; H05K1/0346; H05K2201/00; H05K2201/01; H05K2201/0137; H05K2201/0154; H05K2203/00; H05K2203/01; H05K2203/0147; H05K2203/0152; H05K3/38; H05K3/388; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12431; Y10T428/12438; Y10T428/12493; Y10T428/12535; Y10T428/12556; Y10T428/12569
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
173 words
A component for use in manufacturing printed circuits, comprising: a) a laminate that in a finished printed circuit constitutes a functional element, said laminate comprised of: a film substrate formed of a first polymeric material; at least one layer of a tie metal deposited onto a first side of said film substrate, and at least one layer of copper electrodeposited onto said at least one layer of a tie metal, said layer of copper having an essentially uncontaminated exposed surface facing away from said at least one layer of tie metal; and b) a planar layer of metal that constitutes a discardable element, said layer of metal having an essentially uncontaminated surface that is inert to copper, said laminate being attached to said layer of metal at its borders, with said essentially uncontaminated, exposed surface of said at least one layer of copper engaging said essentially uncontaminated surface of said layer of metal to define a substantially uncontaminated central zone inwardly of the edges of the sheet that is unjoined at the interfaces.
Claim 2
Dependent Claim
173 words
A component for use in manufacturing printed circuits, comprising: a) a laminate that in a finished printed circuit constitutes a functional element, said laminate comprised of: a film substrate formed of a first polymeric material; at least one layer of a tie metal deposited onto a first side of said film substrate, and at least one layer of copper electrodeposited onto said at least one layer of a tie metal, said layer of copper having an essentially uncontaminated exposed surface facing away from said at least one layer of tie metal; and b) a planar layer of metal that constitutes a discardable element, said layer of metal having an essentially uncontaminated surface that is inert to copper, said laminate being attached to said layer of metal at its borders, with said essentially uncontaminated, exposed surface of said at least one layer of copper engaging said essentially uncontaminated surface of said layer of metal to define a substantially uncontaminated central zone inwardly of the edges of the sheet that is unjoined at the interfaces.
Claim 3
Dependent Claim
15 words
A component as defined in claim 1 , wherein said first polymeric material is polyimide.
Claim 4
Dependent Claim
16 words
A component as defined in claim 2 , wherein said planar layer of metal is aluminum.
Claim 5
Dependent Claim
30 words
A component as defined in claim 2 , wherein said tie metal is selected from the group consisting of chromium, nickel, titanium, aluminum, copper, vanadium, silicon, iron and alloys thereof.
Claim 6
Dependent Claim
23 words
A component as defined in claim 4 , wherein said tie coat has a thickness of between 0 Å and about 500 Å.
Claim 7
Dependent Claim
23 words
A component as defined in claim 5 , wherein said copper layer has a thickness between about 0.1 μm and about 70 μm.
Claim 8
Dependent Claim
19 words
A component as defined in claim 6 , wherein said copper layer has a thickness of about 0.2 μm.
Claim 9
Dependent Claim
24 words
A component as defined in claim 6 , wherein said polyimide film has a thickness of between about 12.5 μm and about 125 μm.
Claim 10
Dependent Claim
29 words
A component as defined in claim 1 , wherein said laminate is attached to said planar layer of metal by an adhesive applied about the periphery of said laminate.
Claim 11
Dependent Claim
28 words
A component as defined in claim 9 , wherein said adhesive is a continuous bead applied about the periphery of said laminate that hermetically seals said central zone.
Claim 12
Dependent Claim
37 words
A component as defined in claim 1 , wherein said first polymeric material is a polyimide, and said component is further comprised of a dimensionally stable adhesive film applied to a second side of said film substrate.
Claim 13
Dependent Claim
39 words
A component as defined in claim 11 , wherein said adhesive is selected from the group consisting of acrylics, epoxies, nitrile rubbers, phenolics, polyamides, polyarylene ethers, polybenzimidazoles, polyesters, polyimides, polyphenylquinoxalines, polyvinyl acetals, polyurethanes, silicones, vinyl-phenolics, urea-formaldehyde and combinations thereof.
Claim 14
Dependent Claim
26 words
A component as defined in claim 12 , wherein said adhesive film is an epoxy having a thickness between about 1 mil to about 3 mils.
Claim 15
Dependent Claim
146 words
A component for use in manufacturing printed circuits, comprising: a) a laminate that in a finished printed circuit constitutes a functional element, said laminate comprised of: a polymer-supported thin layer of copper, said copper being electrodeposited onto said polymer and having a thickness between about 0.1 μm and about 70 μm and said polymer having a thickness between about 12.5 μ and about 125 μm; b) a planar layer of metal that constitutes a discardable element, said layer of metal having an essentially uncontaminated surface that is inert to copper, said laminate being attached to said layer of metal at its borders, with said essentially uncontaminated, exposed surface of said at least one layer of copper engaging said essentially uncontaminated surface of said layer of metal to define a substantially uncontaminated central zone inwardly of the edges of the sheet that is unjoined at the interfaces.
Claim 16
Dependent Claim
146 words
A component for use in manufacturing printed circuits, comprising: a) a laminate that in a finished printed circuit constitutes a functional element, said laminate comprised of: a polymer-supported thin layer of copper, said copper being electrodeposited onto said polymer and having a thickness between about 0.1 μm and about 70 μm and said polymer having a thickness between about 12.5 μ and about 125 μm; b) a planar layer of metal that constitutes a discardable element, said layer of metal having an essentially uncontaminated surface that is inert to copper, said laminate being attached to said layer of metal at its borders, with said essentially uncontaminated, exposed surface of said at least one layer of copper engaging said essentially uncontaminated surface of said layer of metal to define a substantially uncontaminated central zone inwardly of the edges of the sheet that is unjoined at the interfaces.
Claim 17
Dependent Claim
14 words
A component as defined in claim 14 , wherein said polymer is a polyimide.
Claim 18
Dependent Claim
21 words
A component as defined in claim 15 , wherein said polyimide film supports a layer of copper on both sides thereof.
Claim 19
Dependent Claim
25 words
A component as defined in claim 16 , wherein the layers of copper on each side of said polyimide film have about the same thickness.
Claim 20
Dependent Claim
31 words
A component as defined in claim 15 , wherein said laminate is to be dependent on said planar layer of metal by an adhesive applied about the periphery of said laminate.
Claim 21
Dependent Claim
28 words
A component as defined in claim 18 , wherein said adhesive is a continuous bead applied about the periphery of said laminate that hermetically seals said central zone.
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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) | 2004-10-01 | 2005-04-02 | 2005-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-10-01 | 2009-04-02 | 2009-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-10-01 | 2013-04-02 | 2013-10-02 | $7700.00 | Window Closed / Lapsed |