Patent ID: 6320260
Filing Date: 2001-11-20
Classification: H01L

Abstract:
A semiconductor device, comprising:a first diffusion layer formed in the surface of a semiconductor substrate;an insulating film formed on said semiconductor substrate;a first contact hole formed in said insulating film to expose a surface of said first diffusion layer;a semiconductor film formed in direct contact with an inner surface of said first contact hole and in direct contact with the surface of said first diffusion layer exposed by said first contact hole;a second diffusion layer formed in the surface of said semiconductor substrate;a second contact hole formed in said insulating film to expose a surface of said second diffusion layer, anda film containing at least a metal and which is formed in direct contact with an inner surface of said second contact hole, in direct contact with the surface of said second diffusion layer exposed by said second contact hole, in direct contact with said insulating film and in direct contact with said semiconductor film,wherein a depth of said first diffusion layer is greater than a depth of said second diffusion layer.