Patent ID: 8614036

Claim:
A fabricating method of a laser reflective mask, the method comprising the steps of: forming a sacrificial layer on top of a base substrate; etching an opening through the sacrificial layer and recessing the base substrate by an etching process, for a region prearranged as a reflection region for a laser beam in the base substrate, to form a sacrificial layer pattern and a reflective layer filling groove having a predetermined depth; alternately and repeatedly laminating first and second reflective layers having different reflectances on top of the base substrate, the sacrificial layer pattern and the reflective layer filling groove formed on the base substrate; removing the first and second reflective layers laminated on top of the sacrificial layer pattern by a chemical lift-off process of removing the sacrificial layer pattern by using an etching process to form a reflective layer pattern configured in the reflective layer filling groove; and removing the sacrificial layer pattern remaining on top of the base substrate; wherein the sacrificial layer is a metal layer of one material selected from the group consisting of chrome (Cr), molybdenum (Mo), aluminum (Al), copper (Cu) and gold (Au), or a laminated structure composed of at least two different metal layers of at least two different materials selected from the group consisting of chrome (Cr), molybdenum (Mo), aluminum (Al), copper (Cu) and gold (Au).