Patent ID: 6339011
Filing Date: 2002-01-15
Classification: H01L

Abstract:
A method of processing a monocrystalline silicon substrate comprising:forming a proximity gettering region within monocrystalline silicon of a monocrystalline silicon substrate; after forming the proximity gettering region, forming epitaxial monocrystalline silicon on the substrate monocrystalline silicon to blanketly increase its thickness at least over the proximity gettering region; wherein the forming of the proximity gettering region comprises ion implanting at least two impurities into the monocrystalline silicon, one of the impurities being of first or second conductivity type, another of the impurities being conductivity-type neutral; and wherein the ion implanting of the conductivity-type neutral impurity is to a peak depth which is shallower than that of the first or second conductivity type impurity.