Patent ID: 6066518
Filing Date: 2000-05-23
Classification: G02F,H01L

Abstract:
A method of manufacturing a semiconductor device comprising the steps of:forming a semiconductor film comprising amorphous silicon on an insulating surface;forming a mask comprising an insulating material on said semiconductor film to expose a first portion of said semiconductor film;selectively adding a crystallization promoting material to the first portion of said semiconductor film by using said mask, said crystallization promoting material being capable of promoting crystallization of said amorphous silicon;heating said semiconductor film and said crystallization promoting material to crystallize said semiconductor film;selectively adding a gettering material into the first portion of the crystallized semiconductor film by using said mask;heating the crystallized semiconductor film added with said gettering material so that the crystallization promoting material contained in the crystallized semiconductor film is gettered by said first portion;removing the first portion of the crystallized semiconductor film after the heating of the crystallized semiconductor film with said gettering material.