Patent ID: 6221728
Filing Date: 2001-04-24
Classification: H01L

Abstract:
A method for manufacturing a semiconductor device that has a mixture of a MOSFET and a low-resistance resistive element that is made of tungsten silicide film, consisting essentially of the steps of etching said tungsten silicide film, which will serve as said resistive element, to a prescribed shape, and after etching said tungsten silicide film, thermal processing said semiconductor device for the purpose of activating a diffusion layer of said MOSFET wherein during said thermal processing the resistance of said tungsten silicide film is reduced, depositing an interlayer insulation film over the MOSFET, forming a contact hole in said diffusion layer and forming an aluminum electrode of the semiconductor device, whereina first oxide film is formed after forming a gate electrode,said tungsten silicide film is formed on said first oxide film, anda second oxide film is formed on said tungsten silicide film.