Patent ID: 8187962

Claim:
A method of making a semiconductor device, the method comprising: forming a gate electrode over an active area of a semiconductor body; depositing a liner over at least a part of the active area and the gate electrode; forming a first and a second contact hole in the liner, wherein the first contact hole exposes a part of the active area, and wherein the second contact hole exposes a part of the gate electrode; forming patterned polysilicon layers, the patterned polysilicon layers filling the first and second contact holes, wherein a top surface of the patterned polysilicon layers is disposed above a top surface of the liner; depositing an insulating layer around the patterned polysilicon layers; exposing the top surface of the patterned polysilicon layers; depositing a first conductive material over the exposed top surface of the patterned polysilicon layers; and in a single process step, converting the patterned polysilicon layers to form a second conductive material and converting the exposed active area under the first contact hole to a third conductive material, the second conductive material comprising the first conductive material.