Patent ID: 6784059
Filing Date: 2004-08-31
Classification: H01L

Abstract:
A method of manufacturing a semiconductor device comprising:forming high concentration source/drain layers of a second conductive type in a semiconductor layer of a first conductive type; forming a gate electrode on a channel layer located between the source and drain layers; and forming a body layer of the first conductive type in direct contact with the source layer and a low concentration drain layer of the second conductive type formed between the channel layer and the drain layer, wherein the body layer is formed only under the gate electrode, and wherein forming a body layer of the first conductive type comprises doping impurities of the first conductive type into said semiconductor layer by ion implantation, wherein said low concentration drain layer of the second conductive type or said low concentration source/drain layers of the second conductive type are formed so that they are shallow under said gate electrode and they are deep under said high concentration drain layer of the second conductive type or said high concentration source/drain layers of the second conductive type.