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:
Dec. 08, 2020
Filed:
Apr. 10, 2019
Sang Jun Choi, Suwon-si, KR;
Olas Co., Ltd., Cheonan-si, KR;
Sang Jun Choi, Seoul, KR;
Other;
OLAS CO., LTD., Cheonan-si, KR;
Abstract
An anti-reflective hardmask composition contains: (a) an arylcarbazole derivative polymer represented by the following Chemical Formula 1 or a polymer blend containing the same; and (b) an organic solvent in Chemical Formula 1, Aand Aare each independently a (C-C) aromatic aryl group and are the same as or different from each other, R is t-butyloxycarbonyl (t-BOC), ethoxyethyl, isopropyloxyethyl, or tetrahydropyranyl, Xand Xare each a polymerization linkage group derived from aldehyde or an aldehyde acetal monomer capable of being one-to-one polymerized with an arylcarbazole derivative and Ain the presence of an acid catalyst, m/(m+n) is in a range of 0.05 to 0.8, and a weight average molecular weight (Mw) of an the polymer is in a range of 1,000 to 30,000.