ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,504,693, issued on Dec. 23, was assigned to TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD. (Hsinchu, Taiwan).
"Photoresist composition and method of manufacturing a semiconductor device" was invented by Yen-Hao Chen (New Taipei, Taiwan), Wei-Han Lai (New Taipei, Taiwan) and Ching-Yu Chang (Yuansun Village, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Manufacturing method includes forming photoresist layer including photoresist composition over substrate. Photoresist composition includes: photoactive compound, polymer, crosslinker. The polymer structureA1, A2, A3 independently C1-C30 aryl, alkyl, cycloalkyl, hydroxylalkyl, alkoxy, alkoxyl alkyl...