ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,699,320, issued on Aug. 4, 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 City, Taiwan), Wei-Han Lai (New Taipei City, 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, alkox...