Patent ID: 8524101

Claim:
A method for manufacturing a semiconductor device, comprising the steps of: preparing a substrate having an interlayer insulating film formed thereon; forming an upper layer film having a mask pattern on an upper surface of the interlayer insulating film present on the substrate in such a manner that a portion of the upper surface of the interlayer insulating film is exposed; supplying a gas required for dehydration to the substrate to remove moisture from the interlayer insulating film with the portion of the upper surface of the interlayer insulating film exposed; and etching a portion of the interlayer insulating film to form a connection hole in which an electrical connection portion is to be embedded, wherein the gas required for dehydration releases a proton (H+) which couples with a hydroxyl group contained in the interlayer insulating film to desorb water vapor from the interlayer insulating film, wherein the gas required for dehydration is dipivaloylmethane (DPM), and the film, after treatment, has an increased measured contact angle with water or a lower measured amount of moisture remaining in the film.