“SOI substrate manufacturing method,” US patent No.5665631, 1997. 2014년 9월 3일/카테고리: Patents/Book /작성자: exel https://gistexel.com/wp-content/uploads/2014/08/logo_exel.gif 0 0 exel https://gistexel.com/wp-content/uploads/2014/08/logo_exel.gif exel2014-09-03 14:09:322014-09-03 14:15:50 "SOI substrate manufacturing method,” US patent No.5665631, 1997.