发明授权
US07678655B2 Spacer layer etch method providing enhanced microelectronic device performance 有权
间隔层蚀刻方法提供增强的微电子器件性能

Spacer layer etch method providing enhanced microelectronic device performance
摘要:
A method for forming a field effect transistor device employs a conformal spacer layer formed upon a gate electrode. The gate electrode is employed as a mask for forming a lightly doped extension region within the semiconductor substrate and the gate electrode and conformal spacer layer are employed as a mask for forming a source/drain region within the semiconductor substrate. An anisotropically etched shaped spacer material layer is formed upon the conformal spacer layer and isotropically etched to enhance exposure of the source/drain region prior to forming a silicide layer thereupon.
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