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:
Sep. 06, 2011
Filed:
Oct. 02, 2007
Applicants:
Hong-sick Park, Suwon-si, KR;
Jong-hyun Jeong, Seoul, KR;
Suk-il Yoon, Hwaseong-si, KR;
Seong-bae Kim, Seoul, KR;
Wy-yong Kim, Seoul, KR;
Soon-beom Huh, Siheung-si, KR;
Byung-uk Kim, Hwaseong-si, KR;
Inventors:
Hong-Sick Park, Suwon-si, KR;
Jong-Hyun Jeong, Seoul, KR;
Suk-Il Yoon, Hwaseong-si, KR;
Seong-Bae Kim, Seoul, KR;
Wy-Yong Kim, Seoul, KR;
Soon-Beom Huh, Siheung-si, KR;
Byung-Uk Kim, Hwaseong-si, KR;
Assignee:
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D 7/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a photoresist stripper including about 5 wt % to about 20 wt % alcohol amine, about 40 wt % to about 70 wt % glycol ether, about 20 wt % to about 40 wt % N-methyl pyrrolidone, and about 0.2 wt % to about 6 wt % chelating agent.