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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.:

US 11415888 B1

PDFFull Text
Date of Patent:
Aug. 16, 2022

Filed:

Aug. 28, 2017

Negative type photosensitive resin composition, photosensitive resist film, pattern forming method, cured film, and method of producing cured film

Applicant:

Tokyo Ohka Kogyo Co., Ltd., Kawasaki, JP;

Inventors:

Ryosuke Nakamura, Kawasaki, JP;

Tomoyuki Ando, Kawasaki, JP;

Tokunori Yamadaya, Kawasaki, JP;

Assignee:

TOKYO OHKA KOGYO CO., LTD., Kawasaki, JP;

Attorney:

Knobbe, Martens, Olson & Bear LLP

Primary Examiner:

John S Chu

Int. Cl.
CPC ...
G03F 7/038 (2006.01); G03F 7/11 (2006.01); G03F 7/38 (2006.01); G03F 7/004 (2006.01); C08K 5/55 (2006.01); C08K 5/49 (2006.01); C08K 3/22 (2006.01); C08L 63/00 (2006.01); C09D 163/00 (2006.01); C09D 163/04 (2006.01); G03F 7/16 (2006.01); G03F 7/20 (2006.01); G03F 7/32 (2006.01); G03F 7/40 (2006.01);
U.S. Cl.
CPC ...
G03F 7/038 (2013.01); C08K 3/22 (2013.01); C08K 5/49 (2013.01); C08K 5/55 (2013.01); C08L 63/00 (2013.01); C09D 163/00 (2013.01); C09D 163/04 (2013.01); G03F 7/0045 (2013.01); G03F 7/0047 (2013.01); G03F 7/0385 (2013.01); G03F 7/11 (2013.01); G03F 7/16 (2013.01); G03F 7/168 (2013.01); G03F 7/2004 (2013.01); G03F 7/325 (2013.01); G03F 7/38 (2013.01); G03F 7/40 (2013.01);
Abstract

A negative type photosensitive resin composition containing an epoxy group-containing resin; a metal oxide; and a cationic polymerization initiator (I). The cationic polymerization initiator (I) contains one or more of a compound represented by Formula (I1) and a compound represented by Formula (I2). In Formula (I1), Rto Rrepresent an aryl group which may have a substituent or a fluorine atom. In Formula (I2), Rrepresents a fluorinated alkyl group which may have a substituent or a fluorine atom. A plurality of R's may be the same as or different from one another. q represents an integer of 1 or greater, and Q's each independently represent a q-valent organic cation.

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