Patent ID: 6238515
Filing Date: 2001-05-29
Classification: H01L,Y10S,Y10T

Abstract:
A wafer transfer apparatus for sticking a wafer, which is divided into a multiplicity of chips and which has its surface stuck with a protective tape, to a ring frame by a transfer tape, comprising:a positioning unit for disposing the protective tape stuck wafer on a positioning table and configured to perform a position adjustment of the wafer in longitudinal, lateral and rotational directions, so that the wafer is located in a reference position;a transfer tape mount unit for disposing the protective tape stuck wafer, which has been located in the reference position by the positioning unit, on a transfer tape mount table, and configured to stick a transfer tape to both a ring frame disposed around a periphery of the wafer and a back of the wafer, so that the wafer and the ring frame are stuck to each other and integrated; andprotective tape peeling unit for disposing the wafer, which has its back covered with the transfer tape and which has been integrated with the ring frame by the transfer tape mount unit, on a protective tape peeling table, and configured to bond an end of a peeling tape to an end of the protective tape stuck to the wafer surface, and configured to pull the peeling tape so that the protective tape is peeled from the wafer surface.