Patent ID: 7629233
Filing Date: 2009-12-08
Classification: H01L

Abstract:
1. A method of forming a semiconducting structure comprising: providing a substrate comprising at least a first semiconductor layer and a second semiconductor layer separated by an insulating layer, said first semiconductor layer and said second semiconducting layer having a same or differing crystalline orientation; protecting a portion of the substrate to define an SOI region, while leaving another portion of the substrate unprotected, said unprotected portion of the substrate defining a bulk-Si region; etching said unprotected portion of the substrate to expose a surface of the second semiconductor layer; regrowing a semiconductor material on said exposed surface of the second semiconductor layer, said semiconductor material having said same crystalline orientation; planarizing the substrate containing the semiconductor material so that an upper surface of the first semiconductor layer is substantially planar with an upper surface of the semiconductor material; and forming at least one first device in said SOI region, while forming at least one second device on said semiconductor material in said bulk-Si region, wherein said forming at least one second device in said bulk-Si region includes implanting said bulk-Si region with a first dopant to provide a well region, forming at least one gate region atop a surface of said bulk-Si region, forming source and drain regions adjacent said at least one gate region with a second type dopant, and forming a contact to said well region, wherein said contact stabilizes floating body effects.