Patent ID: 6165824
Filing Date: 2000-12-26
Classification: H01L

Abstract:
A method of manufacturing a semiconductor device comprising the steps of:forming a semiconductor film comprising amorphous silicon on an insulating surface of a substrate;providing a first selected portion of said semiconductor film with a catalyst material for promoting crystallization thereof;heating said catalyst material and said semiconductor film to crystallize said semiconductor film from said first selected portion horizontally with said insulating surface wherein said catalyst material diffuses into said semiconductor film during the crystallization;providing a second selected portion of the crystallized semiconductor film with a gettering material;heating the crystallized semiconductor film and the gettering material so that said catalyst material contained in the crystallized semiconductor film is moved therethrough in a direction parallel with a crystal growth direction in said heating step for the crystallization; and thenpatterning the crystallized semiconductor film to define an active region of the semiconductor device.