Patent ID: 7232768
Filing Date: 2007-06-19
Classification: G03F,H01L

Abstract:
1. A method of fabricating an electronic device formed on a semiconductor wafer, comprising the steps of: forming a layer of a first material in a fixed position relative to the wafer, wherein the first material is reactive with oxygen plasma; forming a photoreist layer in a fixed position relative to the layer of the first material; forming at least one void through the layer of the first material in response to the photoresist layer, wherein the step of forming at least one void further forms a polymeric residue in response to the photoresist layer; subjecting the semiconductor wafer to a plasma which incorporates a gas which includes hydrogen so as to remove the photoresist layer; and removing the polymeric residue by subjecting the semiconductor wafer to a dry plasma having a mixture of at approximately 80% NH