Patent US5234536A successfully refreshed from Google Patents.
US5234536A
Expired / Lapsed
US
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Process for the manufacture of an interconnect circuit
Assignee: Olin Corp
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Filing: 1992-04-01
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Granted: 1993-08-10
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Expires: 2012-04-01
Abstract
Abstract A method for the manufacture of an electronic circuit is provided. A substrate is provided with an indexing means and personality windows by etching. An adhesive is deposited on one surface of the substrate to coat at least those regions to be laminated to a metallic foil. The foil is bonded to the nonconductive substrate and patterned into a plurality of circuit traces. These steps may be repeated a plurality of time for a multi-metal layer structure.
Inventors
- 👤 Arvind Parthasarathi
- 👤 Jeffrey S. Braden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:48
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/0011; H05K3/0017; H05K3/002; H05K3/40; H05K3/4092; H10; H10W; H10W70/00; H10W70/01; H10W70/04; H10W70/047; H10W70/40; H10W70/453; H10W70/60; H10W70/67; H10W70/69; H10W70/695; H05K2201/00; H05K2201/03; H05K2201/0332; H05K2201/0335; H05K2201/0355; H05K2201/09; H05K2201/09009; H05K2201/09063; H05K2203/00; H05K2203/06; H05K2203/063; H05K2203/15; H05K2203/1545; H05K3/0041; H05K3/38; H05K3/386; H05K3/46; H05K3/4644; H05K3/4652
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
69 words
A process for the manufacture of a circuit, comprising: a) etching at least one aperture in a substrate; b) depositing a first adhesive on said substrate; c) bonding a first conductive foil to said substrate by means of said first adhesive; d) depositing a second adhesive on said first conductive foil; and e) bonding a second conductive foil to said first conductive foil by means of said second adhesive.
Claim 2
Dependent Claim
69 words
A process for the manufacture of a circuit, comprising: a) etching at least one aperture in a substrate; b) depositing a first adhesive on said substrate; c) bonding a first conductive foil to said substrate by means of said first adhesive; d) depositing a second adhesive on said first conductive foil; and e) bonding a second conductive foil to said first conductive foil by means of said second adhesive.
Claim 3
Dependent Claim
11 words
The process of claim 1 wherein said substrate is electrically conductive.
Claim 4
Dependent Claim
15 words
The process of claim 2 wherein said substrate is copper or a copper based alloy.
Claim 5
Dependent Claim
11 words
The process of claim 1 wherein said substrate is electrically nonconductive.
Claim 6
Dependent Claim
23 words
The process of claim 4 wherein said substrate is selected from the group consisting of polyester, polycarbonate, polyimide, glass-filled epoxy, polyvinylchloride and polyethersulfone.
Claim 7
Dependent Claim
15 words
The process of claim 5 wherein said nonconductive substrate is selected to be a polyimide.
Claim 8
Dependent Claim
16 words
The process of claim 1 wherein steps (d) and (e) are repeated at least one time.
Claim 9
Dependent Claim
22 words
The process of claim 7 wherein at least one of said conductive foil layers is formed into a plurality of circuit traces.
Claim 10
Dependent Claim
22 words
The process of claim 1 wherein at least one of said conductive foil layers is formed into a plurality of circuit traces.
Claim 11
Dependent Claim
87 words
A process for the manufacture of a circuit, comprising: a) etching a plurality of apertures in close proximity into a substrate; b) depositing an adhesive on said substrate; c) bonding a conductive foil to said substrate by means of said adhesive; and d) forming said conductive foil into a plurality of circuit traces, each said circuit trace having an inner lead end terminating at one of said apertures and an outer lead end terminating at either another of said apertures or at an edge of said substrate.
Claim 12
Dependent Claim
87 words
A process for the manufacture of a circuit, comprising: a) etching a plurality of apertures in close proximity into a substrate; b) depositing an adhesive on said substrate; c) bonding a conductive foil to said substrate by means of said adhesive; and d) forming said conductive foil into a plurality of circuit traces, each said circuit trace having an inner lead end terminating at one of said apertures and an outer lead end terminating at either another of said apertures or at an edge of said substrate.
Claim 13
Dependent Claim
11 words
The process of claim 10 wherein said substrate is electrically nonconductive.
Claim 14
Dependent Claim
23 words
The process of claim 11 wherein said substrate is selected from the group consisting of polyester, polycarbonate, polyimide, glass-filled epoxy, polyvinylchloride and polyethersulfone.
Claim 15
Dependent Claim
15 words
The process of claim 12 wherein said nonconductive substrate is selected to be a polyimide.
Claim 16
Dependent Claim
17 words
The process of claim 11 wherein said conductive foil layer is copper or a copper based alloy.
Claim 17
Dependent Claim
21 words
The process of claim 14 wherein said conductive foil has a thickness of from about 0.0007 inches to about 0.0014 inches.
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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) | 1996-08-09 | 1997-02-08 | 1997-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-09 | 2001-02-08 | 2001-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-09 | 2005-02-08 | 2005-08-10 | $7700.00 | Window Closed / Lapsed |