Patent ID: 8182632

Claim:
A wafer table for adsorbing a wafer having a back surface supported on a mount frame via a dicing film and a front surface with a surface protective film attached thereon, the surface protective film having a peeling tape attached thereon, comprising: holding means for holding the wafer to a surface of the table; a first groove and a second groove formed in an area of the table corresponding to at least a part of an outer periphery of the wafer, wherein the first groove is formed in the area covering only one transverse edge of the peeling tape, and a second groove formed in the area covering only the other transverse edge of the peeling tape, wherein a distance between the first groove and a center of the table is equal to a distance between the second grove and the center of the table; and a suction means for sucking the air in the groove, wherein at least a part of the dicing film exposed around the outer periphery of the wafer is sucked into the groove and suspended while operating together with a suction of the wafer to the groove and the suspension thereof by the holding means.