Patent ID: 7438776

Claim:
A tape adhering apparatus for adhering a tape on a wafer, comprising: a movable table, for supporting the wafer, movable in a direction at right angle to a tape adhering surface of the wafer, the movable table being capable of applying a pressing force against the wafer; a tape adhering means adapted to move from a first end to a second end of the wafer in parallel to the tape adhering surface to adhere the tape on the wafer; and a tape supply means for supplying the tape between the tape adhering surface of the wafer and the tape adhering means, wherein the movable table is advanced toward and retreated from the tape adhering means in the direction at right angle to the tape adhering means so that the tape adhering surface of the wafer on the movable table is pressed with the pressing force against the tape adhering means via the tape; a tape adhering means moving distance calculation means for detecting a distance in which the tape adhering means moves from a first end of the wafer when the tape adhering means moves from the first end to a second end of the wafer in parallel to the tape adhering surface of the wafer; and a movable table pressing force setting means for setting the pressing force of the movable table using the distance in which the tape adhering means moves detected by the tape adhering means moving distance calculation means in such a manner that a pressure of a contact portion of the wafer is kept substantially constant when the tape adhering means moves from the first end to the second end of the wafer.