Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1995-09-13
1998-04-14
Lam, Cathy
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428615, 428901, 361751, 174256, 174257, 156625, B32B 300, B32B 1500, H05K 100, H05K 103
Patent
active
057389314
ABSTRACT:
A electronic device is disclosed having an underlying conductor formed in a predetermined pattern on a surface of an underlying insulator and made of at least one member selected from the group consisting of Ti, Ta, Mo, Cr, Nb and W and their alloy, a main conductor made of Cu formed in a predetermined pattern on the underlying conductor, a first coating conductor made of at least one member selected from the group consisting of Ti, Ta, Mo, Nb and Ni and their alloy, and a second coating conductor made of at least one member selected from the group consisting of Au and Al and their alloy that are formed in this order so as to coat a surface of the main conductor made of Cu facing the surrounding insulator.
REFERENCES:
patent: 3825442 (1974-07-01), Moore
patent: 3862017 (1975-01-01), Tsunemitsu et al.
patent: 4083098 (1978-04-01), Nicholas
patent: 4581279 (1986-04-01), Sugishita et al.
patent: 4760481 (1988-07-01), Yuito et al.
patent: 5284696 (1994-02-01), Satoh et al.
English Abstract of Japanese Publication No. JP1277311, dated Jan. 29, 1990.
English Abstract of Japanese Publication No. JP60128641, dated Nov. 15, 1985.
Mizoguchi Tetsuhiko
Sato Toshiro
Kabushiki Kaisha Toshiba
Lam Cathy
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