Patent ID: 7300872

Claim:
A method for manufacturing a semiconductor device using a dual-damascene pattern, the method comprising the steps of: forming a first conductor on a portion of a first insulation film deposited on a semiconductor substrate; depositing a second insulation film, a third insulation film, and a fourth insulation film on the first insulation film; forming a first hole by selectively removing portions of the fourth and third insulation films; forming a fifth insulation film by coating a photoresist on the fourth insulation film, the first hole being filled with the fifth insulation film; curing the fifth insulation film by hard baking; etching back the fifth insulation film using a dry etch to form a hole fill potion filled with the fifth insulation film; forming a sixth insulation film on the fifth and fourth insulation films; forming a trench mask pattern on the sixth insulation film; forming a trench line hole and a trench via hole using the trench mask pattern; and forming a barrier metal film and a second conductor, the trench line hole and the trench via hole being filled with the second conductor.