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:
Nov. 01, 1983
Filed:
Dec. 21, 1981
Applicant:
Inventors:
Assignee:
Clarion Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
204298 ; 2041 / ;
Abstract
A sputtering apparatus includes a target and a substrate holder respectively supported in a lower portion and an upper portion of a vacuum chamber, a gas jet opening located near the upper surface of the target, and gas withdrawal conduits located near the substrate holder, so that by supplying a gas to the vacuum chamber through the gas jet opening, the gas pressure in the chamber gradually decreases from the region near the target to the region near the substrate holder.