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.

Date of Patent:
Apr. 15, 2014

Filed:

Mar. 11, 2008
Applicants:

Hiromi Kanda, Haibara-gun, JP;

Shinichi Kanna, Haibara-gun, JP;

Inventors:

Hiromi Kanda, Haibara-gun, JP;

Shinichi Kanna, Haibara-gun, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 7/039 (2006.01); G03F 7/075 (2006.01); G03F 7/20 (2006.01); G03F 7/30 (2006.01);
U.S. Cl.
CPC ...
Abstract

A positive resist composition, which comprises: (A) a resin of which solubility in an alkali developer increases under an action of an acid; (B) a compound capable of generating an acid upon irradiation with actinic rays or radiation; (C) a resin having at least one of a fluorine atom and a silicon atom; and (D) a solvent, wherein the resin (C) contains at least one of: (C1) a resin having at least one of a fluorine atom and a silicon atom and having an alicyclic structure; and (C2) a resin containing a repeating unit having at least one of a fluorine atom and a silicon atom in a side chain and a repeating unit having an unsubstituted alkyl group in a side chain; and a pattern forming method.


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