Patent ID: 7416963

Claim:
A method of manufacturing a semiconductor device, comprising: forming a first insulation film on a front surface of a semiconductor substrate; forming an opening in the first insulation film by etching so as to expose part of the front surface of the semiconductor substrate; forming a pad electrode that is disposed in the opening and on the first insulation film; forming a second insulation film on a back surface of the semiconductor substrate; forming a via hole that penetrates through the second insulation film and the semiconductor substrate so as to expose part of the pad electrode disposed in the opening of the first insulation film and part of the first insulation film surrounding said part of the pad electrode disposed in the opening of the first insulation film; forming a third insulation film on a sidewall and a bottom of the via hole and on the second insulation film; etching the third insulation film so as to expose the part of the pad electrode disposed in the opening of the first insulation film; forming a through-hole electrode in the via hole, the through-hole electrode being electrically connected with the pad electrode; and dividing the semiconductor substrate to form at least a semiconductor die.