US3808680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous processing for substrate manufacture
Assignee: International Business Machines Corp
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Filing: 1972-06-30
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Granted: 1974-05-07
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Expires: 1992-06-30
Abstract
Abstract A continuous process for fabricating a substrate for mounting of an integrated circuit thereon, in which an array of conductive patterns is formed in a copper sheet on a flexible insulator by a rotogravure printing and subtractive copper etch process. The flexible insulator sheet is then cut into individual pieces and a rigid member is mounted to the opposite side of the flexible insulator from the array of conducting patterns by means of contact pins which fasten the rigid members to the flexible insulator and are electrically connected to the conducting patterns.
Inventors
- 👤 P Lafrate
- 👤 V Relyea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:23
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/40; H05K3/4092; H05K3/0058; H05K3/0064; H05K3/0097; H05K1/00; H05K1/02; H05K1/03; H05K1/0306; H05K1/0393; H05K2201/00; H05K2201/09; H05K2201/09209; H05K2201/09654; H05K2201/09754; H05K2201/10; H05K2201/10227; H05K2201/10295; H05K2201/10303; H05K2203/00; H05K2203/15; H05K2203/1545; H05K2203/1572; H05K3/02; H05K3/06; H05K3/061; H05K3/10; H05K3/12; H05K3/1275; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/49147; Y10T29/49149; Y10T29/49155; Y10T29/49156
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
113 words
A high speed continuous process for fabricating a substrate for mounting of an integrated circuit thereon, consisting of the steps of: rotogravure printing a plurality of conducting patterns arrays consisting of etched resistant ink onto a conductive sheet laminated to a continuous flexible insulator of indefinite length; etching the conductive material which does not comprise the conducting pattern arrays; cutting said insulator sheet into individual pieces, and; mounting a rigid member to each of said flexible insulators in the area of said conducting pattern arrays by means of contact pins, said pins being electrically connected to said conducting pattern arrays, wherein said rigid member is provided for each of said conducting pattern arrays.
Claim 2
Dependent Claim
113 words
A high speed continuous process for fabricating a substrate for mounting of an integrated circuit thereon, consisting of the steps of: rotogravure printing a plurality of conducting patterns arrays consisting of etched resistant ink onto a conductive sheet laminated to a continuous flexible insulator of indefinite length; etching the conductive material which does not comprise the conducting pattern arrays; cutting said insulator sheet into individual pieces, and; mounting a rigid member to each of said flexible insulators in the area of said conducting pattern arrays by means of contact pins, said pins being electrically connected to said conducting pattern arrays, wherein said rigid member is provided for each of said conducting pattern arrays.
Claim 3
Dependent Claim
17 words
The process of claim 1 wherein conducting patterns are printed on both sides of said flexible insulators.
Claim 4
Dependent Claim
26 words
The process of claim 1 wherein the electrical connection between the pins and the conductive arrays is assured by the additional step of applying solder thereto.
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) | 1977-05-06 | 1977-11-05 | 1978-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-06 | 1981-11-05 | 1982-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-06 | 1985-11-05 | 1986-05-07 | $7700.00 | Window Closed / Lapsed |