Patent ID: 6383851
Filing Date: 2002-05-07
Classification: H01L

Abstract:
A process for forming a thin film transistor for a semiconductor device, said process comprising the steps of:forming an insulation layer on a silicon substrate; forming hemispherical grained silicon on said insulation layer; forming an amorphous silicon layer covering said hemispherical grained silicon and said insulation layer; converting said amorphous silicon layer into a grained silicon film, said grained silicon film being formed about said hemispherical grained silicon and having grains of approximately 0.1 microns to 0.5 microns in size; patterning an oxide layer into a transistor gate oxide, thus leaving uncovered sections of said grained silicon on opposing sides of said transistor gate oxide; conductively doping said uncovered sections of said grained silicon; forming a patterned metal gate on said transistor gate oxide.