Patent ID: 6764964
Filing Date: 2004-07-20
Classification: G03F,H01L,Y10S

Abstract:
A method for forming patterns of a semiconductor device comprising:(a) applying a first organic anti-reflective coating composition onto a surface of a layer to be etched and conducting a baking process to form a first anti-reflective film; (b) applying a second organic anti-reflective coating composition on the upper portion of the first anti-reflective film with a different refractive index and light-absorbency from the first organic anti-reflective composition and conducting a further baking process to form a second anti-reflective film; (c) performing an etching process of the fanned anti-reflective films to form micro-bends thereon; and (d) coating photoresist on the anti-reflective films with micro-bends, exposing the coated anti-reflective films to light source and then developing the same to form desirable photoresist patterns.