Patent ID: 7026193

Claim:
A method of manufacturing a semiconductor device, said method comprising: forming an amorphous semiconductor film on an insulating surface; providing a metal element being capable of promoting crystallization of the amorphous semiconductor film to form a first metal element added region and a second metal element added region; crystallizing the amorphous semiconductor film from the first metal element added region and the second metal element added region in parallel to the substrate to form a first crystalline portion and a second crystalline portion, respectively, in a crystalline semiconductor film; and patterning the crystalline semiconductor film to form at least one crystalline semiconductor island of a functional array of semiconductor islands using the first crystalline portion while the second crystalline portion is not used to form any crystalline semiconductor island of the functional array of semiconductor islands, wherein the second crystalline portion is located between the crystalline semiconductor island and the second metal element added region, and wherein the first metal element added region is away from the second metal element added region.