Patent ID: 6605393
Filing Date: 2003-08-12
Classification: G03F

Abstract:
A method of manufacturing an alternative PSM, comprising the steps of:providing a transparent substrate; sequentially forming a translucent layer and a light-shielding layer on said transparent substrate; defining said light-shielding layer to form a light-shielding pattern; etching said translucent layer to expose said transparent substrate to form a first transparent region in 0 degree phase by using said light-shielding pattern as a mask; and defining said first transparent region in 0 degree phase to alternatively form a second transparent region in 180 degree phase, wherein a part of said translucent layer is left on a common border between said first transparent region in 0 degree phase and said second transparent region in 180 degree phase to form a third translucent region in 85-95 degree phase.