Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1981-05-14
1983-08-23
Newsome, John H.
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
219121EF, 219121PB, 219121LE, 427125, 427229, 427190, 427191, 427194, 4273763, 4273764, 4273765, 427 34, 427 531, B05D 302, B05D 312
Patent
active
044004087
ABSTRACT:
A method for forming an anticorrosive coating on the surface of a metal substrate, which comprises, in one embodiment, (1) coating the surface of the metal substrate with an anticorrosive metal capable of forming an alloy with the substrate metal and/or a hydride of the anticorrosive metal; (2) heating the coated surface, and then; (3) heating the coated surface in a vacuum or in an atmosphere substantially inert to the metal coating and the metal substrate by irradiating the coated surface with electron beams, laser beams or a plasma arc to sinter the coated metal and form an alloy layer in the interface between the metal substrate and the metal coating and, in another embodiment, subsequent to Step (2) and prior Step (3) above, coating the coated surface with a solution of a thermally decomposable platinum-group metal compound and then heating the resulting coated surface at about 40.degree. C. to about 600.degree. C.
REFERENCES:
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patent: 3293064 (1966-12-01), Aves
patent: 4140813 (1979-02-01), Hund et al.
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patent: 4172155 (1979-10-01), Pease
patent: 4212900 (1980-07-01), Serlin
patent: 4218494 (1980-08-01), Belmondo et al.
Asano Hiroshi
Goto Toshiki
Hosonuma Masashi
Nitta Hideo
Shimamune Takayuki
Newsome John H.
Permelec Electrode Ltd.
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