Patent ID: 7670895
Filing Date: 2010-03-02
Classification: H01L

Abstract:
1. A process of forming an electronic device comprising: providing a workpiece including a substrate, an insulating layer, and a semiconductor layer, wherein the insulating layer lies between the substrate and the semiconductor layer; patterning the semiconductor layer to define an opening extending to an insulating layer, wherein after patterning the semiconductor layer: forming a first layer over the substrate, wherein the first layer substantially fills the opening within the semiconductor layer; removing a part of the first layer from within the opening, wherein after removing the part of the first layer: oxidizing the semiconductor layer while the remaining portion of the first layer lies within the opening, wherein: depositing an insulating layer that substantially completely fills a rest of the opening after oxidizing the semiconductor layer; and removing a portion of the insulating layer lying outside the opening to form a field isolation region.