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:
Oct. 30, 2018
Filed:
Sep. 15, 2015
Shin-etsu Chemical Co., Ltd., Chiyoda-ku, JP;
Hiroyuki Urano, Jyoetsu, JP;
Masashi Iio, Jyoetsu, JP;
Katsuya Takemura, Jyoetsu, JP;
Koji Hasegawa, Jyoetsu, JP;
Masahiro Fukushima, Jyoetsu, JP;
Takayuki Fujiwara, Jyoetsu, JP;
SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;
Abstract
The present invention provides a silicone skeleton-containing polymer compound containing a repeating unit shown by the general formula (1) and having a weight average molecular weight of 3,000 to 500,000. There can be provided a silicone skeleton-containing polymer compound suitable used as a base resin of a chemically amplified negative resist composition that can remedy the problem of delamination generated on a metal wiring such as Cu and Al, an electrode, and a substrate, especially on a substrate such as SiN, and can form a fine pattern without generating a scum and a footing profile in the pattern bottom and on the substrate when the widely used 2.38% TMAH aqueous solution is used as a developer.