Electrically conductive copper layers and process for preparing

Details Electrically conductive copper layers and process for preparing Electrically conductive copper layers and process for preparing

1988-05-16

1991-02-05

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428336, 428472, 428469, 204 15, B32B 1504, B32B 1520, C25D 502

Patent

active

049903950

ABSTRACT:
Electrically conductive copper layers in conductor plates and electrical components having a black metal coating which is acid-soluble and capable of being applied in an acidic medium are more easily prepared and have superior properties. In the process of preparation, such conductor plates provided with a resist and, optionally, with through-contacts, and having free copper areas

REFERENCES:
patent: 2844530 (1957-02-01), Wesley et al.
patent: 3981691 (1976-09-01), Cuneo
patent: 4055707 (1977-10-01), McDonald
patent: 4119761 (1978-10-01), Kuze et al.
patent: 4350574 (1982-09-01), McDonald
patent: 4727014 (1988-02-01), Horn et al.
patent: 4750976 (1988-06-01), Hupe et al.

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