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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 6423463 B1

PDFFull Text
Date of Patent:
Jul. 23, 2002

Filed:

Feb. 29, 2000

Photosensitive resin composition, photosensitive resin film, and method of forming bumps using same

Applicant:
Inventors:

Masaru Oota, Tokyo, JP;

Isamu Mochizuki, Tokyo, JP;

Kouichi Hirose, Tokyo, JP;

Yasuaki Yokoyama, Tokyo, JP;

Hozumi Sato, Tokyo, JP;

Assignee:

JSR Corporation, Tokyo, JP;

Attorney:

Oblon, Spivak, McClelland, Maier & Neustadt, P.C.

Primary Examiner:

John S Chu

Int. Cl.
CPC ...
G03F 7/023 ; G03F 7/30 ;
U.S. Cl.
CPC ...
G03F 7/023 ; G03F 7/30 ;
Abstract

A positive-tone photosensitive resin composition for forming a thick film which is suitably used for photofabrication such as manufacture of circuit boards, a photosensitive resin film, and a method of forming a bump using the same. The photosensitive resin composition comprising (A) a novolac resin with a weight average molecular weight of 2,000-30,000, (B) a polyvinyl lower alkyl ether, (C) a polyphenol derivative compound with a molecular weight of 200-1,000, and (D) a compound containing a naphthoquinonediazido group.

Find Patent Forward Citations

Oota, Masaru. (2002). Photosensitive resin composition, photosensitive resin film, and method of forming bumps using same (U.S. Patent No. 6423463). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6423463

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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