Patent ID: 7183178
Filing Date: 2007-02-27
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor wafer wherein a film is formed on a back surface of a starting semiconductor wafer formed with circuits in a front surface thereof, comprising: a unification step of supporting the front surface of the semiconductor wafer on a support baseplate having a flat support surface, and then unifying at least the support baseplate and the semiconductor wafer with each other; a grinding work step of holding a support baseplate side of unified structure on a chuck table, and then grinding the back surface of the semiconductor wafer to thin the semiconductor wafer with use of a grinding apparatus including the chuck table for holding the semiconductor wafer thereon and a grinding means for grinding the back surface of the semiconductor wafer held on the chuck table; and a film formation step of holding the support baseplate side of the unified structure on a second chuck table, and then forming a film on the back surface of the semiconductor wafer with use of a film formation apparatus including the second chuck table for holding the semiconductor wafer thereon and a film formation means for forming the film on the surface of the semiconductor wafer held on the second chuck table; wherein a protective tape capable of being torn off is stuck onto a back surface of the support baseplate at said unification step, so as to perform the subsequent grinding work step with the protective tape borne on the support baseplate; and a protective-tape tearing-off and removal step of tearing off and removing the protective tape is carried out before performing said film formation step.