The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 26, 2001
Filed:
Mar. 31, 1999
Kazuyoshi Akiyama, Nara, JP;
Tatsuyuki Aoike, Nara, JP;
Toshiyasu Shirasuna, Nara, JP;
Hitoshi Murayama, Soraku-gun, JP;
Takashi Otsuka, Kyotanabe, JP;
Daisuke Tazawa, Nara-ken, JP;
Kazuto Hosoi, Nara, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An object of the present invention is to provide a vacuum processing apparatus and a vacuum processing method capable of effectively preventing film peeling generated in a reaction vessel to provide a deposited film of excellent quality with reduced spherical projections. The present invention provides a vacuum processing apparatus or method utilizing a vessel, means for supplying a gas into the vessel and means for supplying an electric power and in which the gas is decomposed by the electric power to generate a discharge, wherein the surface of a member confronted with the discharge satisfies the conditions of (1) the ten-point mean roughness Rz with respect to a reference length of 2.5 mm according to the JIS standard being in a range of not smaller than 5 &mgr;m and not larger than 200 &mgr;m, and (2) the mean spacing S of adjacent local peaks according to the JIS standard being in a range of not smaller than 5 &mgr;m and not larger than 100 &mgr;m.