Patent ID: 6383905
Filing Date: 2002-05-07
Classification: H01L,Y10S

Abstract:
A method for manufacturing an integrated device having a semiconductor material substrate, comprising:forming a polysilicon layer on the substrate using a shallow trench isolation process; forming indentations in a top surface of the polysilicon layer to create a micro-rough layer by chemical mechanical polishing using a slurry solution having particles of a predetermined maximum size of less than one-half the width of the later-formed polysilicon strip without adhering the particles to the polysilicon layer and then cleaning the polysilicon layer; patterning and removing portions of the polysilicon layer to form strips of polysilicon; and forming a silicide film on the top surface of the polysilicon strips, the silicide film covering the micro-rough surface of the polysilicon strips and being formed without entering a C54 transformation phase, by depositing a refractory metal film, causing the metal film to react with the polysilicon strips, and removing portions of the metal film not in contact with the polysilicon strips.