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:
Jan. 06, 2015
Filed:
Sep. 08, 2011
Applicants:
Yung-chih Chang, Zhutian Township, TW;
Chih-wing Chang, Tainan, TW;
Inventors:
Yung-Chih Chang, Zhutian Township, TW;
Chih-Wing Chang, Tainan, TW;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65B 55/00 (2006.01); H01L 23/02 (2006.01); B63C 11/00 (2006.01); B65B 61/20 (2006.01);
U.S. Cl.
CPC ...
B63C 11/00 (2013.01); H01L 23/02 (2013.01); B65B 55/00 (2013.01); B65B 61/20 (2013.01);
Abstract
A mask storage device and a method of preventing defect formation on a mask are provided. The method includes providing a mask storage device comprising a first and second shell configured to form a sealed space in a closed state and a desiccant positioned within the mask storage device. The method further includes placing a mask inside the mask storage device and sealing the mask storage device with the mask and desiccant inside the sealed space.