Coating processes – Interior of hollow article coating – Coating by vapor – gas – mist – or smoke
Patent
1989-05-30
1990-05-08
Childs, Sadie
Coating processes
Interior of hollow article coating
Coating by vapor, gas, mist, or smoke
427253, 427255, B05D 722, C23C 1608
Patent
active
049237152
ABSTRACT:
A method for the formation of a thin, high melting-point metal film such as W, on a substrate surface, by means of CVD, is disclosed herein. In this method, the inner wall of the CVD reaction tube and the surface of the at least part of the fittings disposed therewithin are covered with a metal nitride film, in the process of performing the CVD operation. The method permits the formation of a high quality film, and also prevents the deposition of the high melting-point metal on the inner wall of the reaction chamber, even if the CVD operation is repeatedly performed over a long period of time.
REFERENCES:
patent: 3031338 (1962-04-01), Bourdeau
patent: 3178308 (1965-04-01), Oxley et al.
patent: 3746569 (1973-07-01), Pammec et al.
patent: 4123989 (1978-11-01), Jewett
patent: 4650698 (1987-03-01), Moriya et al.
Kunishima Iwao
Matsuda Tetsuo
Childs Sadie
Kabushiki Kaisha Toshiba
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