Process and apparatus for coating conducting pieces using a puls

Details Process and apparatus for coating conducting pieces using a puls Process and apparatus for coating conducting pieces using a puls

1988-01-11

1991-05-14

Morgenstern, Norman

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427 39, 427 37, 427 47, 20419231, B05D 512, C23C 1422, C23C 1428, C23C 1430

Patent

active

050154931

ABSTRACT:
A process and apparatus for coating conductive workpieces by ionized vapors with the assistance of a glow discharge includes providing a periodically pulsed input of energy for the discharge so that stress on the parts is reduced and a smooth coating results. Either a constant or periodic magnetic field is superimposed to influence the coating process for better results and better handling.

REFERENCES:
patent: 3282814 (1966-11-01), Berghaus
patent: 3464907 (1969-09-01), Froemel et al.
patent: 3677799 (1972-07-01), Hou
patent: 4082636 (1978-04-01), Takagi
patent: 4401539 (1983-08-01), Abe et al.
patent: 4490190 (1984-12-01), Speri
patent: 4492845 (1985-01-01), Kljucho
patent: 4609564 (1986-09-01), Pinkhasov
patent: 4692230 (1987-09-01), Nihei et al.
patent: 4724058 (1988-02-01), Morrison, Jr.
T. Spalvins, "Plasma Assisted Surface Coating/Modification Processes: An Emerging Technology", from the International Conference on Ion Nitriding, Cleveland, Ohio, Sep. 15-17, 1986, pp. 1-8.
T. Bell et al., "Plasma Surface Engineering", from the International Seminar on Plasma Heat Treatment Science and Technology, Sep. 21-23, 1987, pp. 13-53.

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