Patent ID: 7491616

Claim:
Method of manufacturing a semiconductor device, the method comprising; providing a semiconductor body of silicon, at a surface thereof, with a first semiconductor region of a first conductivity type, in which region a second semiconductor region of a second conductivity type, opposite to the first conductivity type, is formed forming a pn-junction with the first semiconductor region by the ion implantation of dopant atoms of the second conductivity type into the semiconductor body, and wherein, before the introduction of said dopant atoms, an amorphous region is formed in the semiconductor body by an amorphizing implantation of inert atoms, and wherein, after the amorphizing implantation, temporary dopant atoms are implanted in the semiconductor body before the implantation of the dopant atoms of the second conductivity type, and between these implantations the semiconductor body is low-temperature annealed, and wherein, after introduction of the dopant atoms of the second conductivity type, the semiconductor body is further annealed by subjecting it to a heat treatment at a temperature in the range of about 500 to about 800 degrees Celsius.