Patent ID: 6391744
Filing Date: 2002-05-21
Classification: H01L

Abstract:
A method of making a semiconductor device using an SOI starting wafer and thinning the same, comprising the steps of:a) receiving the SOI starting wafer, where the SOI starting wafer includes a silicon substrate and an oxide layer thereon; b) selecting a semiconductor fabrication process for fabricating the semiconductor device from a group of semiconductor fabrication processes consisting of CMOS, NMOS, PMOS, Bipolar, and BICMOS; c) forming a layer of device quality silicon on the oxide layer of the SOI starting wafer to a sufficient thickness and doping profile to realize the semiconductor device; d) fabricating the semiconductor device in the device quality silicon layer using the semiconductor fabrication process selected; e) forming a support layer on the device quality silicon layer having the semiconductor device fabricated therein; and f) thinning the result of step (e).