Patent ID: 6869830
Filing Date: 2005-03-22
Classification: B32B,H01L

Abstract:
1. A method of processing a semiconductor wafer having a large number of rectangular areas defined by streets arranged in a lattice form in its front surface and having semiconductor circuits in the respective rectangular areas, comprising: a mounting step of mounting the semiconductor wafer on a substrate by sticking the front surface of the semiconductor wafer on the substrate, wherein the substrate is larger than the semiconductor wafer and the periphery of the substrate projects beyond the periphery of the semiconductor wafer; a grinding step of adsorbing the front surface of the semiconductor wafer to a chuck means through the substrate and grinding the back surface of the semiconductor wafer by applying a grinding means to the back surface of the semiconductor wafer to reduce the thickness of the semiconductor wafer; a transfer step of mounting a mounting tape on a frame having a mounting opening in its center portion in such a manner that it extends across the mounting opening, sticking the back surface of the semiconductor wafer on the mounting tape to mount the semiconductor wafer in the mounting opening of the frame and removing the substrate from the front surface of the semiconductor wafer after or before the back surface of the semiconductor wafer is stuck on the mounting tape; and a treating step of accessing the semiconductor wafer mounted on the frame from its front surface and executing a predetermined treatment.