ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,512,336, issued on Dec. 30, was assigned to Tokyo Electron Ltd. (Tokyo).
"Substrate processing method and substrate processing apparatus" was invented by Hayato Tanoue (Kumamoto, Japan) and Yohei Yamashita (Kumamoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A substrate processing method of a combined substrate in which a first substrate and a second substrate are bonded to each other is provided. A separation facilitating layer and a laser absorption layer are formed on the second substrate in this order. The substrate processing method includes forming a separation modification layer by radiating laser beam to the laser absorption layer whi...