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Details of Grant 

EPSRC Reference: GR/K88743/01
Title: QUANTUM DEVICES USING SILICON GERMANIUM GROWTH AND REGROWTH ON PATTERNED SUBSTRATES
Principal Investigator: Pepper, Professor Sir M
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Imperial College London
Department: Physics
Organisation: University of Cambridge
Scheme: Standard Research (Pre-FEC)
Starts: 01 October 1996 Ends: 31 January 2000 Value (£): 281,705
EPSRC Research Topic Classifications:
Condensed Matter Physics Materials Synthesis & Growth
EPSRC Industrial Sector Classifications:
Electronics
Related Grants:
Panel History:  
Summary on Grant Application Form
It is proposed to grow, fabricate and measure a number of different novel, Si/SiGe electrical devices using the technique of regrowth. Substrates, prepatterned at Cambridge will have epitaxial material regrown on them before devices are fabricated (using CMOS compatible techniques) and measured at Cambridge. Devices to be investigated include short channel (sub 0.1...) vertical MODFET devices where MBE layers define the short channels and expensive high resolution lithography is not required. Double channel devices for both high power (especially mobile communication applications) and ultra high speed will also be pioneered. Regrown material over etched ridges and troughs along with over oxides will be investigated to assess the potential of such materials to be used as low resistivity interconnects. Coupled electron-hole structures with the theoretical possibility of a room temperature superconducting state will be investigated. Since the proposal plans to investigate silicon quantum devices with fabrication techniques compatible with CMOS plants, the success of the project would allow industry to increase performance by changing the architectures in the present fabrication plants for a small increase in cost rather than scaling the present architecture to 0.1... gate lengths which is believed to require fabrication plants costing >10 billion dollars.
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Organisation Website: http://www.cam.ac.uk