Patent ID: 6613652
Filing Date: 2003-09-02
Classification: H01L

Abstract:
A method of fabrication of a silicon on insulator (SOI) device; comprising the steps of:a) providing a first substrate having trenches in a first side; said first substrate has a second side; b) forming a first insulating layer over said first side of said first substrate and filling said trenches; c) planarizing said first insulating layer to expose said first side of said first substrate to form isolation regions; d) providing a second substrate having a second insulating layer over a first side of said second substrate; said second substrate having a second side; e) bonding said second insulating layer to said first insulating layer; f) removing portions of said first substrate from said second side to expose said first insulating layer to form active areas between said isolation regions; and g) forming devices in and on said active areas.