Patent ID: 7399557
Filing Date: 2008-07-15
Classification: G03F

Abstract:
1. A writing pattern data generating method for, in order to form a first photomask for use in a manufacturing method of a semiconductor device, generating a first writing pattern data which allows a first photomask pattern to be written on a mask-blank from a first pattern data, the manufacturing method of the semiconductor device including forming a mask material film formed on a first film; forming a first resist film on the mask material film; forming a first resist pattern by transferring the first photomask pattern to the first resist film and developing the first resist film; forming a first mask pattern by etching the mask material film with the first resist pattern used as a mask; removing the first resist pattern, after forming the first mask pattern; forming a second resist film on the mask material film, after removing the first resist film; forming a second resist pattern by transferring a second photomask pattern which is formed on a second photomask to the second resist film and developing the second resist film, after removing the first resist pattern; forming a second mask pattern by etching the mask material film with the second resist pattern used as a mask, the second mask pattern including the first mask pattern; removing the second resist pattern, after forming the second mask pattern; and forming a first film pattern by etching the first film with a second mask pattern used as a mask, after removing the second resist pattern, the writing pattern data generating method comprising: correcting the first pattern data in accordance with a first formation change difference between the first resist pattern and the first mask pattern formed by etching the mask material film with the first resist pattern used as a mask and a second formation chance difference between the first film pattern and the second mask pattern which is formed by etching the mask material and the film with the second resist pattern used as a mask, the second mask pattern including the first mask pattern.