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:
Apr. 26, 1994
Filed:
Sep. 01, 1992
Applicant:
Inventor:
Yukihiro Kamide, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
156345 ; 156643 ; 20429837 ; 20429838 ;
Abstract
A rectangular substrate dry etching apparatus which etches a rectangular substrate of a large size with a high degree of accuracy. The dry etching apparatus comprises an etching chamber in which a rectangular substrate to be etched is held in position in the etching chamber, and a plasma generator disposed in the etching chamber for generating a pair of high density plasma bars on the outer sides of and substantially in parallel to a pair of opposing sides of the rectangular substrate in the etching chamber so as to etch the rectangular substrate with diffusion components of the high density plasma bars.