Patent ID: 6624037
Filing Date: 2003-09-23
Classification: H01L

Abstract:
A method of manufacturing a semiconductor device, the method comprising:forming a silicon-on-insulator (SOI) structure comprising: a lower silicon substrate; a buried insulating layer on the substrate; and an upper layer of crystalline silicon on the insulating layer; ion implanting xenon (Xe) into the upper silicon layer to form an amorphous region therein extending from an upper surface toward the buried insulating layer; ion implanting dopant impurities to form source/drain extension implants; annealing to activate shallow source/drain extensions and to crystallize the amorphous region; ion implanting Xe into the upper silicon layer to form an amorphous region therein extending from the upper surface toward the buried insulating layer; ion implanting dopant impurities to form source/drain implants, separately from ion implanting the dopant impurities to form the source/drain extension implants; and annealing to activate source/drain regions and crystallize the amorphous region.