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:
Apr. 14, 2015
Filed:
Dec. 06, 2013
Nissan Chemical Industries, Ltd., Tokyo, JP;
Nissan Chemical Industries, Ltd., Tokyo, JP;
Abstract
A method for producing a semiconductor device includes the steps of: applying a composition for forming a resist underlayer film for EUV lithography including a novolac resin containing a halogen atom onto a substrate having a film to be fabricated for forming a transferring pattern and baking the composition so as to form a resist underlayer film for EUV lithography; and applying a resist for EUV lithography onto the resist underlayer film for EUV lithography, irradiating, with EUV through a mask, the resist underlayer film for EUV lithography and a film of the resist for EUV lithography on the resist underlayer film, developing the film of the resist for EUV lithography, and transferring an image formed in the mask onto the substrate by dry etching so as to form an integrated circuit device.