Patent ID: 6218292
Filing Date: 2001-04-17
Classification: H01L,Y10S

Abstract:
A method of manufacturing a semiconductor device, which method comprises:depositing a first anti-reflective coating on a substrate;depositing a second anti-reflective coating on the first anti-reflective coating, wherein the second anti-reflective coating exhibits greater transparency than the first anti-reflective coating; anddepositing a photoresist layer on the second anti-reflective coating, wherein: the second anti-reflective coating has an extinction coefficient (k) which is less than the extinction coefficient (k) of the first anti-reflective coating; and the first and/or second anti-reflective coating comprise silicon oxime having the formula: Si.sub.1-(x+y+z) N.sub.x O.sub.y :H.sub.z, wherein x, y and z represent the atomic percentage of nitrogen, oxygen and hydrogen, respectively.