Patent ID: 7432146
Filing Date: 2008-10-07
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device having a gate, a source and a drain within a single crystal semiconductor region, comprising: a first step of pattern forming said gate above said single crystal semiconductor region through a gate insulating film; a second step of introducing atoms to amorphize said single crystal semiconductor from oblique directions to a surface of said single crystal semiconductor region with said gate as a mask to form amorphous regions seeping into said single crystal semiconductor region under said gate; before or after said second step, a third step of introducing impurities into said amorphous regions of said single crystal semiconductor region with said gate as a mask; and a fourth step of activating said impurities by executing laser irradiation on at least said amorphous regions to form the source and the drain; wherein an intensity of said laser irradiation is a value of conditions under which said amorphous semiconductor melts but said single semiconductor does not melt.