Patent ID: 7794540
Filing Date: 2010-09-14
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device on a region of silicon oxide situated next to a region of monocrystalline silicon at a surface of a semiconductor body, the method comprising the steps of: 1) forming a layer of arsenic on the region of monocrystalline silicon by heating the silicon oxide and monocrystalline regions in an atmosphere with an arsenic compound, the layer of arsenic not being formed on the region of silicon oxide; and, thereafter, 2) forming a layer of non-monocrystalline silicon as an auxiliary layer on the region of silicon oxide by heating the semiconductor body in an atmosphere that includes a gaseous silicon compound and that does not include a gaseous arsenic compound, the layer of non-monocrystalline silicon not being formed on the region of monocrystalline silicon; wherein the layer of arsenic is removed and then a silicon-containing layer is deposited on the region of monocrystalline silicon.