Patent ID: 6613618
Filing Date: 2003-09-02
Classification: H01L

Abstract:
A thin-filmed transistor manufacturing method, comprising:a first step of forming a gate electrode on a major surface of a substrate; second step of stacking a gate insulating film on said substrate so as to cover said gate electrode and then forming a semiconductor film on said gate insulating film; a third step of forming an interlayer insulating film on said semiconductor film, said interlayer insulating film having a silicon nitride film, said silicon nitride film having a capability to supply hydrogen to said semiconductor film; and a fourth step of heating said semiconductor film and said interlayer insulating film at a temperature to introduce hydrogen atoms contained in said interlayer insulating film into said semiconductor film; wherein, said third step including sub-steps on forming a silicon oxide film in contact with said semiconductor film to a first film thickness, and forming said silicon nitride film in contact with said silicon oxide film to a second film thickness, said first film thickness being set to a value of equal or less than (said second film thicknessÃ—8000 Ã¥)Â½.