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:
Aug. 09, 2016
Filed:
May. 16, 2014
Applicant:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Inventors:
Masamitsu Itoh, Kanagawa-ken, JP;
Shingo Kanamitsu, Kanagawa-ken, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B29C 59/02 (2006.01); H01L 21/027 (2006.01); B82Y 10/00 (2011.01); B82Y 40/00 (2011.01); G03F 7/00 (2006.01);
U.S. Cl.
CPC ...
H01L 21/0274 (2013.01); B29C 59/022 (2013.01); B82Y 10/00 (2013.01); B82Y 40/00 (2013.01); G03F 7/0002 (2013.01); Y10T 428/24479 (2015.01);
Abstract
According to one embodiment, an imprint mask includes a quartz plate. The quartz plate has a plurality of concave sections formed in part of an upper surface on the quartz plate, and impurities are contained in a portion between the concave sections in the quartz plate.