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:
Jun. 13, 2023
Filed:
May. 07, 2020
Applicant:
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Shenzhen, CN;
Inventor:
Haoxu Wu, Shenzhen, CN;
Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C23F 1/18 (2006.01); C08K 5/17 (2006.01); C08L 1/28 (2006.01); C08L 25/06 (2006.01); C08B 11/12 (2006.01); C23F 1/34 (2006.01);
U.S. Cl.
CPC ...
C23F 1/18 (2013.01); C08B 11/12 (2013.01); C08K 5/17 (2013.01); C08L 1/286 (2013.01); C08L 25/06 (2013.01); C23F 1/34 (2013.01); C08L 2312/00 (2013.01);
Abstract
The invention discloses an etching chelating agent, a manufacturing method thereof, and an etching solution composition. The etching chelating agent includes cellulose cross-linked polymer, and the cellulose cross-linked polymer is obtained by cross-linking and polymerizing carboxymethyl cellulose and an amine compound.