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:
Feb. 08, 2007
Applicants:
Cheng-yuan Tsai, Hsinchu, TW;
Chih-lung Lin, Taipei, TW;
Cheng-chen Hsueh, Taipei, TW;
Inventors:
Assignee:
Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D 1/88 (2006.01); C11D 3/28 (2006.01); C11D 3/43 (2006.01);
U.S. Cl.
CPC ...
Abstract
A wet cleaning solution, comprising 0.01-3 wt % of an amphoteric imidazolium surfactant capable of forming a complex with metal ions, a pH adjuster, and balanced deionized water. The wet cleaning solution is substantially free of corrosion inhibitor other than the imidazolium amphoteric surfactant.
Tsai, Cheng-Yuan. (2011). Wet cleaning solution (U.S. Patent No. 8012922). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8012922
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile