Patent ID: 8017455
Filing Date: 2011-09-13
Classification: H01L

Abstract:
1. A method for manufacturing a semiconductor device, comprising the steps of: forming a gate insulating film over a semiconductor film; forming a gate electrode over the gate insulating film; forming a first inorganic insulating film on the gate electrode; heat-treating the first inorganic insulating film at a temperature of from 400° C. to 500° C. in a nitrogen atmosphere; after the step of heat-treating the first inorganic insulating film, forming a second inorganic insulating film including silicon and nitrogen on and in contact with the first inorganic insulating film; and forming an organic insulating film on and in contact with the second inorganic insulating film, wherein a hydrogen concentration in the second inorganic insulating film is higher than a hydrogen concentration in the first inorganic insulating film.