PASTED WAFER AND METHOD FOR PRODUCING PASTED WAFER

摘要

A pasted wafer having a silicon single crystal layer stacked on a silicon single crystal wafer, characterized in that the silicon single crystal layer has a crystal face orientation {110} and the silicon single crystal wafer has a crystal face orientation {100}. A method for producing a pasted wafer characterized in that a first silicon single crystal wafer having a crystal face orientation {110} and a second silicon single crystal wafer having a crystal face orientation {100} are pasted together directly or through an insulating film and then the first silicon single crystal wafer is made thin. According to the method, a wafer that can provide an MIS device having excellent characteristics utilizing a silicon single crystal wafer of {110} can be provided.