abstract |
A method for forming an interlayer insulating film is disclosed. This method comprises the steps of: forming a first insulating film on an object to be formed, the film containing one selected from at least H2O, C and a hydrocarbon; forming a first insulating film having porosity by performing heat treatment for the first insulating film to discharge H2O, C or hydrocarbon therefrom; and forming a second insulating film on the first insulating film having porosity. |