Patent ID: 6953965
Filing Date: 2005-10-11
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor substrate of a first conductivity type; a source region and a drain region of a second conductivity type formed in the semiconductor substrate such that the source region and the drain region are spaced apart; a first gate insulation film formed on the semiconductor substrate between the source region and the drain region; a floating gate formed on the first gate insulation film; a second gate insulation film formed on the floating gate; a control gate formed on the second gate insulation film; and a source line formed on the semiconductor substrate and including a first conductive film and a second conductive film, the first conductive film being formed of the same material as that of the floating gate, and the second conductive film being provided on the first conductive film and formed of the same material as that of the control gate, wherein the floating gate and the first conductive film include polysilicon films, and the control gate and the second conductive film include polysilicon films and suicide films formed on the polysilicon films.