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:
Jan. 14, 2020
Filed:
Oct. 26, 2016
Applicant:
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Inventors:
Yoshinori Hirano, Annaka, JP;
Hideyoshi Yanagisawa, Annaka, JP;
Assignee:
SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03F 7/004 (2006.01); G03F 7/40 (2006.01); G03F 7/039 (2006.01); G06F 7/40 (2006.01); G03F 7/16 (2006.01); G03F 7/20 (2006.01); G03F 7/32 (2006.01);
U.S. Cl.
CPC ...
G03F 7/0397 (2013.01); G03F 7/0045 (2013.01); G03F 7/0392 (2013.01); G03F 7/162 (2013.01); G03F 7/168 (2013.01); G03F 7/2004 (2013.01); G03F 7/322 (2013.01); G06F 7/40 (2013.01);
Abstract
A chemically amplified positive resist composition is provided comprising a specific alkali-soluble polymer adapted to turn soluble in alkaline aqueous solution under the action of acid as base resin, an alkali-soluble polymer, and a photoacid generator in an organic solvent. The composition forms a resist film which can be briefly developed to form a pattern at a high sensitivity without generating dimples in pattern sidewalls.