In this paper, we report a new structure for bipolar junction transistors based on concept of surface inversion. This structure is made up of only one PN junction and a metal with appropriate work function connected to the p region which results in an inversion of electrons in the semiconductor near the metal-semiconductor interface, this inversion layer plays the role of emitter n+ region. Simulations show that the proposed transistor has a very high current gain and cutoff frequency.
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