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Resonant tunneling permeable base transistor based pulsed oscillator

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4 Author(s)
E. Lind ; Solid State Phys./Nanometer Consortium, Lund Univ., Sweden ; P. Lindstrom ; A. Nauen ; L. -E. Wernersson

In this paper, we show that a three terminal resonant tunneling transistor can be used to obtain pulsed operation of a resonant tunneling based oscillator. We have developed a technology to embed nm-sized metallic features in close vicinity to semiconductor heterostructures which allows a direct integration of resonant tunneling diodes inside the channel of a permeable base transistor, thus forming a resonant tunneling permeable base transistor (RT-PBT). When biased in the NDR-region, the RT-PBT works as a negative resistance oscillator. A fundamental oscillation frequency of 800 MHz was detected, with higher harmonics up to 2.6 GHz. Varying the gate voltage shifted the oscillation frequency, showing the possibility of using the RT-PBT as a voltage controlled oscillator.

Published in:

Device Research Conference, 2004. 62nd DRC. Conference Digest [Includes 'Late News Papers' volume]

Date of Conference:

21-23 June 2004