Patent ID: 8617940

Claim:
A method of forming a semiconductor device, the method comprising: providing a buried insulating material formed above a crystalline substrate material at least in a first device region, said buried insulating material having an increased etch resistivity as compared to silicon dioxide formed by an oxidation process with respect to a wet chemical cleaning recipe to be performed prior to forming a metal silicide in said crystalline substrate material and a semiconductor layer formed above said crystalline substrate material in at least a second device region; forming an opening through said buried insulating material in said first device region so as to expose a portion of said crystalline substrate material; forming drain and source regions of a transistor in said semiconductor layer in said second device region and a doped region in said crystalline substrate material exposed by said opening in a common implantation process; performing one or more cleaning processes on the basis of said wet chemical cleaning recipe; and forming said metal silicide in said transistor and said doped region.