Patent ID: 7781335
Filing Date: 2010-08-24
Classification: H01L

Abstract:
1. A method for fabricating a semiconductor device, comprising the steps of: (a) forming a first insulating film having moisture absorbency on a substrate; (b) forming a dummy contact hole and a contact hole in the first insulating film, the contact hole going fully through the first insulating film; (c) heat-treating the substrate, thereby removing water contained in the first insulating film; (d) filling the contact hole and the dummy contact hole with a conductive material, thereby forming a contact and a dummy contact, (e) after the step (d), forming, on the first insulating film, a second insulating film, in which a wiring groove is formed on the first insulating film and the contact; and (f) filling the wiring groove with a conductive material, thereby forming an interconnect on the contact, wherein in the step (b), the dummy contact hole and the contact hole are formed by the same step.