Patent ID: 7180153
Filing Date: 2007-02-20
Classification: H01L

Abstract:
1. A semiconductor device, comprising: a semiconductor substrate; a first, a second and a third diffusion resistors formed in said semiconductor substrate and arranged in parallel to each other, and each diffusion resistor having a top surface, a first end and a second end opposing said first end; an isolation dielectric film surrounding each of said first, second and third diffusion resistors in plan view; a first silicide film formed on said top surface of said first and third diffusion resistors; and a second silicide film formed on said top surface of said second diffusion resistor, wherein said second diffusion resistor is arranged between said first and third diffusion resistors, and wherein said first silicide film covers a whole top surface of said first and third diffusion resistors, and said second silicide film partially covers the top surface of said second diffusion resistor at said first and second ends and a portion between said first and second ends of said second diffusion resistor is not covered with said second suicide film.