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:
Oct. 06, 2020
Filed:
May. 23, 2018
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Jung-Min Oh, Incheon, KR;
Mi-Hyun Park, Seongnam-si, KR;
Hyo-San Lee, Hwaseong-si, KR;
Ji-Hoon Jeong, Suwon-si, KR;
Yong-Sun Ko, Suwon-si, KR;
In-Gi Kim, Hwaseong-si, KR;
Na-Rim Kim, Daegu, KR;
Sang-Tae Kim, Iksan-si, KR;
Seong-Min Kim, Iksan-si, KR;
Kyong-Ho Lee, Osan-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, Gyeonggi-do, KR;
DONGWOO FINE-CHEM, Pyeongtaek-si, Gyeonggi-do, KR;
Abstract
A composition for removing photoresist, including an alkyl ammonium fluoride salt in an amount ranging from about 0.5 weight percent to about 10 weight percent, based on a total weight of the composition; an organic sulfonic acid in an amount ranging from about 1 weight percent to about 20 weight percent, based on the total weight of the composition; and a lactone-based solvent in an amount ranging from about 70 weight percent to about 98.5 weight percent, based on the total weight of the composition.