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:
Jul. 26, 2011
Filed:
Feb. 24, 2009
Bong-kyun Kim, Incheon, KR;
Hong-sick Park, Gyeonggi-do, KR;
Jong-hyun Choung, Gyeonggi-do, KR;
Sun-young Hong, Gyeonggi-do, KR;
Ji-sun Lee, Chungcheongnam-do, KR;
Byeong-jin Lee, Gyeonggi-do, KR;
Kui-jong Baek, Daejeon, KR;
Tai-hyung Rhee, Daejeon, KR;
Yong-sung Song, Daejeon, KR;
Bong-Kyun Kim, Incheon, KR;
Hong-Sick Park, Gyeonggi-do, KR;
Jong-Hyun Choung, Gyeonggi-do, KR;
Sun-Young Hong, Gyeonggi-do, KR;
Ji-Sun Lee, Chungcheongnam-do, KR;
Byeong-Jin Lee, Gyeonggi-do, KR;
Kui-Jong Baek, Daejeon, KR;
Tai-Hyung Rhee, Daejeon, KR;
Yong-Sung Song, Daejeon, KR;
Abstract
An etchant composition that allows simplification and optimization of semiconductor manufacturing process is presented, along with a method of patterning a conductive layer using the etchant and a method of manufacturing a flat panel display using the etchant. The etchant includes nitric acid, phosphoric acid, acetic acid, and an acetate compound in addition to water.