Thin Solid Films, Vol.369, No.1-2, 375-378, 2000
A self-aligned epitaxially grown channel MOSFET device architecture for strained Si/SiGe systems
We describe the fabrication of a self-aligned epitaxially grown channel MOSFET device suitable for the strained Si/SiGe systems. This device architecture relies on a selective epitaxy process to achieve self-alignment and contact formation of the source and drain. It is also amenable in a conventional Si VLSI manufacturing environment. Difficulties encountered with growing high quality source/drain contacts to the channel layer were highlighted and a novel solution was proposed. Structural as well as electrical characterisation of the completed devices are presented.
Keywords:silicon-germanium;metal-oxide-semiconductor field effect transistor;virtual substrate;chemical vapour deposition;self-aligned epitaxy