Gate electrode for semiconductor devices

摘要

The present invention provides an MIS type semiconductor device, comprising a semiconductor substrate and a gate electrode formed on the gate insulating film and formed of gate material. The gate electrode comprises: a first layer of activated crystalline gate material having a first side oriented towards a substrate and a second side oriented away from the substrate, the first layer of activated crystalline gate material having a doping level of 10¹⁹ ions/cm³ or higher, and a second layer of gate material at the second side of the first layer of activated crystalline gate material. The present invention also provides a method for making such a device.