Patent ID: 8679289
Filing Date: 2014-03-25
Classification: H01L,Y10T

Abstract:
1. A method of separating a protective tape joined to a semiconductor wafer, comprising the steps of: suction-holding a rear face of the semiconductor wafer by moving relatively a first holding table and a second holding table upward and downward so as to adjust a level of the first holding table and the second holding table, the first holding table suction-holding an outer peripheral region of the rear face of the semiconductor wafer at least at a location corresponding to a separating start position of the protective tape, the second holding table holding a middle region of the semiconductor wafer inside of the outer peripheral region; and separating the protective tape together with a separation tape from the semiconductor wafer by joining the separation tape to a surface of the protective tape on the semiconductor wafer while the semiconductor wafer is suction-held on the first holding table and the second holding table, and separating the separation tape together with the protective tape through folding back with a joining member.