Patent ID: 7687346
Filing Date: 2010-03-30
Classification: H01L

Abstract:
1. A manufacturing method of a semiconductor integrated circuit device comprising: forming first and second gate electrodes on a semiconductor substrate; doping impurity into the semiconductor substrate with the first and second gate electrodes used as a mask to form first and second diffusion layers in the semiconductor substrate; forming a first insulating film which has concave portions between the first and second gate electrodes on the first and second diffusion layers and first and second gate electrodes; forming a second insulating film on the first insulating film to fill the concave portions between the first and second gate electrodes, a hydrogen content in the first insulating film being less than that in the second insulating film; forming a third insulating film on the second insulating film; forming an inter-level insulating film having a main component different from that of the third insulating film on the third insulating film; etching a contact electrode forming portion of the first diffusion layer to form a contact hole, and forming a contact electrode connected to the first diffusion layer in the contact hole.