US Patent Issued to United Semiconductor (Xiamen) on May 12 for "Wafer image equalization method and apparatus" (Singaporean, Chinese Inventors)

ALEXANDRIA, Va., May 12 -- United States Patent no. 12,626,425, issued on May 12, was assigned to United Semiconductor (Xiamen) Co. Ltd. (Xiamen, China).

"Wafer image equalization method and apparatus" was invented by Qiao Lin Chen (Shamen City, China), Ching-Shu Lo (Singapore), Yan Cai (Singapore), Tsung Che Lin (Singapore) and Wen Yi Tan (Xiamen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for wafer image equalization includes obtaining a wafer image, converting the wafer image into bitmap data, generating a grayscale distribution of RGB pixels according to the bitmap data, generating a grayscale cumulative probability distribution of the RGB pixels according to the grayscale distribution...