Patent attributes
A vacuum processing apparatus with improved processing efficiency, which includes a pusher arm to support the wafer on a beam portion, or deliver the supported wafer, and a cooling plate disposed on a bottom in the lock chamber for cooling the wafer and placed on tip ends of multiple support pins. The pusher arm includes four pusher pins disposed around a center of the wafer to be placed on the horizontally extending beam portion, and a drive unit connected to the proximal part for vertically moving the beam portion. The cooling plate includes a recess portion in its center, into which the beam portion of the pusher arm which has been moved downward is stored. The support pins are positioned closer to an outer circumference side of the wafer on the cooling plate with respect to the center than the pusher pins of the pusher arm.
