Patent ID: 7081416
Filing Date: 2006-07-25
Classification: H01L

Abstract:
1. A method of forming a field effect transistor gate, comprising: forming a series of layers proximate a semiconductive material channel region, the layers comprising a gate dielectric layer and a conductive metal-comprising layer having an ion implanted polysilicon layer received therebetween; forming masking material over the series of layers; patterning the masking material over the series of layers, the polysilicon having been ion implanted with conductivity enhancing impurity prior to said patterning; using the patterned masking material as a mask, etching completely through the conductive metal-comprising layer and only partially through the ion implanted polysilicon layer; and when the ion implanted polysilicon layer has been only partially etched through, annealing the ion implanted polysilicon effective to electrically activate implanted impurity atoms received therein, the annealed polysilicon comprising a portion of the field effect transistor gate.