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:
Feb. 07, 2023
Filed:
May. 20, 2020
Rohm and Haas Electronic Materials Korea Ltd., Chungcheongnam-do, KR;
Ji Ung Kim, Gyeonggi-do, KR;
Geun Huh, Gyeonggi-do, KR;
Ju-Young Jung, Gyeonggi-do, KR;
JinKyu Im, Gyeonggi-do, KR;
Yeonok Kim, Gyeonggi-do, KR;
Abstract
The present invention relates to a positive-type photosensitive resin composition and a cured film prepared therefrom. The positive-type photosensitive resin composition comprises a nonpolar organic solvent, thereby suppressing the reactivity of the epoxy group in the composition to reduce the production of diol compounds. When a cured film is prepared from the composition, an appropriate level of developability can be maintained to further enhance the pattern adhesiveness, resolution, and sensitivity. Further, since the composition of the present invention has a small difference in the film retention rates at room temperature and low temperatures, the composition may have stable stability over time.