Patent US4496607A successfully refreshed from Google Patents.
US4496607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser process for producing electrically conductive surfaces on insulators
Assignee: National Starch and Chemical Investment Holding Corp
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Filing: 1984-01-27
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Granted: 1985-01-29
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Expires: 2004-01-27
Abstract
Abstract The subject disclosure relates to a process for producing electrically conductive surfaces on insulating substrates which comprises use of a laser beam to melt tracks onto said substrates into which conductive particles are simultaneously impinged, resulting thereby in the formation of computer controlled patterns designed according to tracings characteristic of those used in the manufacture of electric/electronic circuit boards.
Inventors
- 👤 Eckart Mathias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:07
CPC Classifications
C; C23; C23C; C23C24/00; C23C24/08; C23C24/10; C23C24/103; C23C24/106; B; B23; B23K; B23K26/00; B23K26/0006; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/50; C04B41/51; C04B41/80; C04B41/81; C04B41/85; C04B41/88; H; H05; H05K; H05K3/00; H05K3/10; H05K3/102; B23K2103/00; B23K2103/30; B23K2103/42; B23K2103/50; H05K1/00; H05K1/02; H05K1/03; H05K1/0306; H05K2201/00; H05K2201/01; H05K2201/0104; H05K2201/0129; H05K2203/00; H05K2203/10; H05K2203/107; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24909; Y10T428/24917
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
46 words
A method of producing electrically conductive surfaces on insulator surfaces characterized in that it uses a laser beam to melt tracks onto said insulator surfaces which are simultaneously impacted upon by conductive particles which, upon fusibly bonding to said molten insulator surface, constitute an electrical conductor.
Claim 2
Independent Claim
46 words
A method of producing electrically conductive surfaces on insulator surfaces characterized in that it uses a laser beam to melt tracks onto said insulator surfaces which are simultaneously impacted upon by conductive particles which, upon fusibly bonding to said molten insulator surface, constitute an electrical conductor.
Claim 3
Dependent Claim
28 words
The method according to claim 1 further characterized in that said insulator surface may be chosen from any one constituting the group of thermoplastic or inorganic dielectric materials.
Claim 4
Dependent Claim
26 words
The method according to claim 1 further characterized in that said conductive particles may be chosen from any one constituting the group of powdery conductive materials.
Claim 5
Dependent Claim
22 words
The method according to claim 2 wherein said dielectric materials comprise polyethylene terephthalate, polystyrene, polymethylmethacrylate, polycarbonate, cellulose acetate, alumina, silica and beryllia.
Claim 6
Dependent Claim
16 words
The method according to claim 3 wherein said powdery conductive materials comprise silver and copper flakes.
Claim 7
Dependent Claim
17 words
A rigid electric/electronic circuit prepared according to the steps outlined in the method described in claim 1.
Claim 8
Dependent Claim
17 words
A flexible electric/electronic circuit prepared according to the steps outlined in the method described in claim 1.
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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) | 1988-01-29 | 1988-07-30 | 1989-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-29 | 1992-07-30 | 1993-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-29 | 1996-07-30 | 1997-01-29 | $7700.00 | Window Closed / Lapsed |