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:
Nov. 29, 2011
Filed:
May. 14, 2010
Masayuki Endou, Toyama, JP;
Masaru Sasago, Osaka, JP;
Masayuki Endou, Toyama, JP;
Masaru Sasago, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A resist film of a positive type containing a photoacid generator is formed on a substrate. Then, pattern exposure is performed by selectively irradiating the resist film with exposure light. Thereafter, first heating is performed on the resist film subjected to the pattern exposure. After the heating, first development is performed on the resist film, thereby forming a first resist pattern. Subsequently, the first resist pattern is exposed to a solution containing a thermal acid generator and containing neither polymer nor a cross-linking agent. After the exposure, second heating is performed on the first resist pattern. Second development is then performed on the first resist pattern, thereby forming a second resist pattern made of the first resist pattern having a reduced size.