Patent ID: 6258513
Filing Date: 2001-07-10
Classification: G03F

Abstract:
A method of manufacturing a semiconductor device comprising the steps of:preparing a semitransparent phase shifting mask including (a) a hole formation semitransparent phase shifting pattern having a semitransparent film formed at a predetermined position on a photomask substrate and (b) a light shielding area provided at a peripheral edge portion of said hole formation semitransparent phase shifting pattern and serving to make an intensity of light having passed through said light shielding area smaller than an intensity of light having passed through said semitransparent phase shifting film, as measured on a to-be-exposed film, said hole formation semitransparent phase shifting pattern being for two semiconductor chips; andexposing, with a projection exposure optical system, said to-be-exposed film by use of said semitransparent phase shifting mask.