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. 08, 2008
Filed:
Mar. 15, 2007
Jun Iwabuchi, Chiba, JP;
Yosuke Osawa, Chiba, JP;
Jun Iwabuchi, Chiba, JP;
Yosuke Osawa, Chiba, JP;
Toyo Gosei Co., Ltd., Chiba, JP;
Abstract
The present invention provides a sulfonium salt which can serve as a photo-acid-generator, the sulfonium salt not raising the problem of poor compatibility to a photoresist polymer having an acid-dissociable group. The sulfonium salt is represented by formula (1): wherein Rrepresents a linear or branched C2 to C9 divalent hydrocarbon group; each of Rto Rrepresents a hydrogen atom or a linear or branched C1 to C3 hydrocarbon group; each of Rand Rrepresents an organic group; Rand Rmay be linked together to form a divalent organic group; and Xrepresents an anion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile