B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
148/60
B23K 35/363 (2006.01) H01B 1/22 (2006.01) H05K 1/09 (2006.01) H05K 3/12 (2006.01) H05K 9/00 (2006.01)
Patent
CA 1287557
Abstract of the Disclosure A conductive copper paste composition adapted to yield a highly conductive film receptive to solders without pretreatment is disclosed. This conductive paste comprises a copper metal powder, a resin component including a thermosetting resin, and an assortment of additives. In use, the paste is applied to an insulation substrate to a predetermined circuit pattern and cured in situ. Soldering can then be performed directly on the cured circuit. This contributes not only to the conductivity of the circuit but dispenses with the activation treatment and electroless plating or electroplating that have heretofore been essential prior to soldering. The invention, therefore, results in a substantial curtailment of production process and a proportional econimic advantage. In addition, this conductive paste can be used in such applications as electrode and through-hole connections, formation of electromagnetic and electrostatic shield layers, and so on in the manufacture and assembly of electronic components and circuits.
532964
Eguchi Kazumasa
Murakami Hisatoshi
Nakatani Fumio
Terada Tsunehiko
Wakita Shinichi
Kirby Eades Gale Baker
Tatsuta Electric Wire And Cable Co. Ltd.
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