Patent ID: 7955937
Filing Date: 2011-06-07
Classification: H01L

Abstract:
1. A method, comprising: implanting an atomic species into a surface layer of a donator substrate to a specified depth; forming a crystalline portion and an insulating portion laterally adjacent one another in said surface layer of crystalline semiconductor material of a donator substrate above said specific depth; bonding said surface layer of said donator substrate to a substrate, the surface layer including coplanar exposed portions of said insulating portion and said crystalline portion; removing excess material of said donator substrate using said atomic species located at said specified depth to control the removal of said excess material so as to a maintain a portion of said crystalline semiconductor material on said insulating portion to define an SOI region and to define a bulk region in said crystalline portion; forming a first plurality of transistors of an electronic circuit in said SOI region; and forming a second plurality of transistors of said electronic circuit in said bulk region.