Patent ID: 8951921
Filing Date: 2015-02-10
Classification: C03C,C23C,C30B,H01L

Abstract:
1. A method of forming a thin film transistor, comprising: forming a thin film poly silicon layer by a method of forming a thin film poly silicon layer, wherein the method of forming the thin film poly silicon layer comprises: providing a substrate, having a first surface; performing a heating treatment; and performing a silicon thin film deposition process for directly forming a thin film poly silicon layer on the first surface of the substrate, wherein the heating treatment comprises: heating the substrate to a first temperature by a main heating source; and heating the first surface of the substrate to a second temperature by an auxiliary heating source, wherein the second temperature is higher than the first temperature; performing a first patterning process on the thin film poly silicon layer to form a semiconductor pattern; forming a gate electrode; forming a gate insulation layer; and forming a source electrode and a drain electrode.