Patent ID: 6245493
Filing Date: 2001-06-12
Classification: G03F,H01L

Abstract:
A method for creating a roughened surface on an oxide material, comprising:roughening the surface of the oxide material via a plasma etch with a non-reactant gas of at least one of argon (Ar) (5-100 sccm); xenon (5-100 sccm); krypton (5-100 sccm); and helium (5-100 sccm) at a source power level within the range of about 20-500 W, bias power level within the range of about 50-200 W, and pressure within the range of about 3-20 mT, wherein the roughened surface diffuses light incident thereto so as to mitigate damage during exposure to a photoresist subsequently formed on the oxide material.