Patent ID: 7563382
Filing Date: 2009-07-21
Classification: B24C,G03F

Abstract:
1. A method of fabricating a mask, said method comprising the steps of: (a) forming a soft material layer by disposing a soft material having positive photosensitivity and at least one of adhesion and adhesiveness on a material as a target of machining; (b) forming a hard material layer by disposing an opaque hard material, with which a desired mask pattern has been formed in advance, on said soft material layer; and (c) forming the mask pattern in said soft material layer by performing exposure to light and development on said soft material layer by using said hard material as a photomask, wherein step (b) includes: forming the mask pattern of said hard material on a releasable member having adhesion that is reduced by at least one of an external stimulus and external energy; and transferring the mask pattern of said hard material formed on said releasable member onto said soft material layer by attaching said releasable member formed with the mask pattern of said hard material to said soft material layer, and then, applying at least one of external stimulus and external energy to said releasable member to release said member from said hard material and said soft material layer, leaving only said hard material in the mask pattern on said soft material layer.