US4052272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of depositing metal conducting patterns on large area surfaces
Assignee: International Business Machines Corp
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Filing: 1976-12-30
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Granted: 1977-10-04
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Expires: 1996-12-30
Abstract
Abstract A method of depositing conducting patterns on a large area surface is disclosed. The method is characterized by photochemically depositing an electrically conducting organic π-electron donor compound on an insulating surface and selectively depositing a metal onto the established conductive pattern while simultaneously removing the organic film.
Inventors
- 👤 James Cleary McGroddy
- 👤 Bruce Albert Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:29
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/72; G03C1/73; C; C25; C25D; C25D5/00; C25D5/02; G03C1/675; G03C5/00; G03C5/58; H; H05; H05K; H05K3/00; H05K3/10; H05K3/18; H05K3/188
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
50 words
A method for depositing metal conducting patterns on large area surfaces including the steps of: a. photochemcially depositing organic π-electron donor-halide salt onto a substrate in a predetermined pattern and b. simultaneously electrolytically depositing a metal film according to said predetermined pattern while removing said organic π-electron donor halide salt.
Claim 2
Independent Claim
50 words
A method for depositing metal conducting patterns on large area surfaces including the steps of: a. photochemcially depositing organic π-electron donor-halide salt onto a substrate in a predetermined pattern and b. simultaneously electrolytically depositing a metal film according to said predetermined pattern while removing said organic π-electron donor halide salt.
Claim 3
Dependent Claim
73 words
A method according to claim 1 wherein said organic π-electron donor-halide salt is composed a compound having the structural formula ##STR4## wherein X can be O, S, Se, or Te and R 1 , R 2 , R 3 , and R 4 can be the same or different and is a groupd selected from hydrogen, alkyls phenyls, substituted phenyls, --SCH 3 , --CO 2 Me, halogen, and fused cycles, and a halocarbon.
Claim 4
Dependent Claim
35 words
A method according to claim 2 wherein said organic π-electron donor compound has the structural formula, where R 1 = R 2 = R 3 = R 4 and is hydrogen and X is S.
Claim 5
Dependent Claim
34 words
A method according to claim 2 wherein said π-electron donor compound has the structural formula where R 1 = R 2 = R 3 = R 4 and is hydrogen and X is Se.
Claim 6
Dependent Claim
25 words
A method according to claim 2 wherein said fused rings are selected from the group consisting of cyclopentane, cyclohexane, benzene, furan, thiophene, dihydrofuran, and dihydrothiphene.
Claim 7
Dependent Claim
14 words
A method according to claim 1 wherein said organic π-electron donor compound is tetrathiatetracene.
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) | 1980-10-03 | 1981-04-04 | 1981-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-03 | 1985-04-04 | 1985-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-03 | 1989-04-04 | 1989-10-04 | $7700.00 | Window Closed / Lapsed |