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:
Jul. 25, 2023
Filed:
Dec. 23, 2020
Applicant:
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Inventors:
Jun Hatakeyama, Joetsu, JP;
Takayuki Fujiwara, Joetsu, JP;
Assignee:
SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 7/004 (2006.01); G03F 7/039 (2006.01); G03F 7/038 (2006.01); C08F 212/14 (2006.01); C08F 220/18 (2006.01);
U.S. Cl.
CPC ...
G03F 7/0045 (2013.01); C08F 212/22 (2020.02); C08F 212/24 (2020.02); C08F 220/1802 (2020.02); C08F 220/1805 (2020.02); C08F 220/1806 (2020.02); G03F 7/0382 (2013.01); G03F 7/0392 (2013.01); G03F 7/0397 (2013.01);
Abstract
A resist composition comprising a base polymer and an acid generator containing a sulfonium salt having the formula (1) or an iodonium salt having the formula (2).