Method for manufacturing a FinFET device comprising a mask to define a gate perimeter and another mask to define fin regions

摘要

A method for manufacturing a FinFET device includes: providing a substrate having a mask disposed thereon; covering portions of the mask to define a perimeter of a gate region; removing uncovered portions of the mask to expose the substrate; covering a part of the exposed substrate with another mask to define at least one fin region; forming the at least one fin and the gate region through both masks and the substrate, the gate region having side walls; disposing insulating layers around the at least one fin and onto the side walls; disposing a conductive material into the gate region and onto the insulating layers to form a gate electrode, and then forming source and drain regions.