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. 26, 2023
Filed:
Oct. 30, 2020
Rohm and Haas Electronic Materials Llc, Marlborough, MA (US);
Tomas Marangoni, Marlborough, MA (US);
Emad Aqad, Northborough, MA (US);
James W. Thackeray, Braintree, MA (US);
James F. Cameron, Brookline, MA (US);
Xisen Hou, Lebanon, NH (US);
ChoongBong Lee, Westborough, MA (US);
ROHM AND HAAS ELECTRONIC MATERIALS LLC, Marlborough, MA (US);
Abstract
A photoresist composition, comprising an acid-sensitive polymer comprising a repeating unit having an acid-labile group; an iodonium salt comprising an anion and a cation, the iodonium salt having Formula (1): wherein Zis an organic anion; Aris substituted or unsubstituted Cheteroaryl group comprising a furan heterocycle; and Ris substituted or unsubstituted hydrocarbon group as provided herein, wherein the cation optionally comprises an acid-labile group, wherein Arand Rare optionally connected to each other via a single bond or one or more divalent linking groups to form a ring, and wherein the iodonium salt is optionally covalently bonded through Aror substituent thereof as a pendant group to a polymer, the iodonium salt is optionally covalently bonded through Ror substituent thereof as a pendant group to a polymer, or the iodonium salt is optionally covalently bonded through Zas a pendant group to a polymer; and a solvent.