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:
Jun. 12, 2012
Filed:
Nov. 05, 2008
Applicants:
Kenichi Okuyama, Tokyo-to, JP;
Satoru Kanke, Tokyo-to, JP;
Inventors:
Kenichi Okuyama, Tokyo-to, JP;
Satoru Kanke, Tokyo-to, JP;
Assignee:
Dai Nippon Printing Co., Ltd., Tokyo-to, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 7/004 (2006.01); G03F 7/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
This disclosure provides a negative-working resist composition comprising a calix resorcinarene derivative (A) of specific structure, an acid generator (B) which directly or indirectly generates an acid when exposed to an active energy ray having a wavelength of 248 nm or less, and a cross-linking agent (C).