Patent ID: 6503817
Filing Date: 2003-01-07
Classification: H01L

Abstract:
A method for making a semiconductor device, comprising:implanting a dopant into a substrate having a surface, wherein the dopant is implanted directly into the surface of the substrate by passing the dopant through only the semiconductor substrate, the dopant being implanted in an energy of about 10 KeV-20 KeV, to establish a dopant implant profile defining a peak, the peak being about 200 Ã¥ to 400 Ã¥ from the substrate surface; implanting a preamorphization substance into the substrate to define an active region lower boundary, prior to activating the dopant; activating the dopant by RTA at a temperature between about 550Â° C. to 650Â° C.; and forming a silicide on the surface of the substrate.