Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1990-02-14
1991-01-01
Pianalto, Bernard
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
427 47, 427295, B05D 306
Patent
active
049817132
ABSTRACT:
This invention relates to the use of plasma technology for coating thin polymer films on steel. The process utilizes DC power, system pressures of 0.01-1.0 torr, the steel substrate is made the cathode, and the anodes are equipped with magnetic enhancement. The result is a uniform, pin-hole free, dense organic coating. Furthermore, there is minimal deposition of the organic film on the anodes or interior of the chamber.
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Yang Duck J.
Yasuda Hirotsugu
E. I. Du Pont de Nemours and Company
Lynn John M.
Pianalto Bernard
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