Patent ID: 7517746

Claim:
A method of manufacturing a metal oxide semiconductor transistor with a metal gate, comprising: providing a substrate, a gate temporary layer formed on the substrate, a spacer surrounding the gate temporary layer, the substrate having two doping regions on two sides of the gate temporary layer respectively; forming an insulating layer on the gate temporary layer, the spacer and the substrate forming a dielectric layer on the insulating layer; removing the partial dielectric layer to expose the insulating layer; removing the gate temporary layer and the insulating layer positioned on the gate temporary layer, and forming a bevel edge and a recess, the bevel edge covering the spacer, and the recess being surrounded by the spacer; forming a barrier layer covering the inner sidewall of the recess, the bevel edge and the remaining dielectric layer; forming a conductive layer in the recess, and on the bevel edge and the remaining dielectric layer; and removing the barrier layer and the conductive layer positioned on the remaining dielectric layer to form a metal gate.