A structure and method of fabrication for PFET devices in a compressively
strained Ge layer is disclosed. The fabrication method of such devices is
compatible with standard CMOS technology and it is fully scalable. The
processing includes selective epitaxial depositions of an over 50% Ge
content buffer layer, a pure Ge layer, and a SiGe top layer. Fabricated
buried channel PMOS devices hosted in the compressively strained Ge layer
show superior device characteristics relative to similar Si devices.