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.

Date of Patent:
Jan. 11, 1994

Filed:

May. 26, 1992
Applicant:
Inventors:

Masamitsu Shirai, Osaka, JP;

Masahiro Tsunooka, Osaka, JP;

Kanji Nishijima, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03F / ;
U.S. Cl.
CPC ...
430325 ; 430323 ; 430324 ; 430314 ; 156643 ; 1566591 ;
Abstract

A method for forming a resist pattern comprising applying onto a base plate a resinous composition comprising a compound capable of generating an acid when irradiated with actinic rays to obtain a photosensitive layer, exposing the thus formed layer through a pattern mask to actinic rays, applying onto the whole surface of the layer an alkoxysilane gas and subjecting the thus treated layer to dry etching to remove unexposed area of said layer. By the adoption of the present method, a very fine resist pattern which is useful for the preparation of semiconductor element, magnetic bubble memory element and the like, can be easily and economically prepared.


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