Patent ID: 7461446
Filing Date: 2008-12-09
Classification: G11B,Y10S,Y10T

Abstract:
1. A method of fabrication for minimizing refractive notching defects in fabricated components, comprising: A) providing an unshaped block of component material; B) applying a photoresist material layer on said unshaped block; C) baking said photoresist material layer; D) applying an index matching overcoat to said baked photoresist material layer; E) applying a pattern mask to said baked photoresist material layer with said index matching overcoat to form protected areas and exposed areas of said baked photoresist material layer; F) exposing said baked photoresist material layer with said an index matching overcoat to light; G) developing said baked photoresist material layer and removing said index matching overcoat and the exposed backed photoresist material layer to produce developed photoresist mask areas which form protected areas of said unshaped block of component material; and H) milling said unshaped block of component material except the protected areas with a milling source to form a shaped component.