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A novel Si bistable diode

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5 Author(s)
Xuegen Zhu ; Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA ; Xinyu Zheng ; Pak, M. ; Tanner, M.O.
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We have previously reported bistable I-V characteristics in a delta-doped SiGe/Si diode and its application to a SRAM cell. In this paper, a novel full Si bistable diode is studied. The full Si feature of the device makes it more compatible with mainstream Si technology. The I-V bistability is achieved by band engineering with two double delta-doped tunnel junctions. Since the bistability is based on quantum tunneling, the device can be conveniently built in a vertical stack leading to further reduction of device area. The new bistable diode operates with several positive feedback mechanisms, which lead to fast turn-on and turn-off speeds.

Published in:

Device Research Conference Digest, 1997. 5th

Date of Conference:

23-25 June 1997