Patent ID: 8323876
Filing Date: 2012-12-04
Classification: G03F,H01L

Abstract:
1. A method of forming an integrated circuit device, comprising: forming an anti-reflective coating comprising a silsesquioxane resin and a cross-linking catalyst on a substrate; forming an anti-penetration film on the anti-reflective coating by using the cross-linking catalyst within the anti-reflective coating to cause a cross-linking reaction within a surface region of the anti-reflective coating, said anti-penetration film consisting of a material having a greater density of Si—O—Si bonds therein relative to the anti-reflective coating; patterning a photoresist layer on the anti-penetration film; and selectively etching the anti-penetration film and the anti-reflective coating in sequence using the patterned photoresist layer as an etching mask.