Kanika Nadda | Searcharxiv

arXiv2013

Schottky Collector Bipolar Transistor without Impurity Doped Emitter and Base: Design and Performance

In this paper, we report an alternative approach of implementing a Schottky collector bipolar transistor without doping the ultrathin SOI film. Using different metal work function electrodes, the electrons and holes are induced in an intrinsic silicon film to create the n emitter and the p base regions, respectively. Using two-dimensional device simulation, the performance of the proposed device has been evaluated. Our results demonstrate that the charge plasma based bipolar transistor with Schottky collector exhibits a high current gain and a better cut-off frequency compared to its conventional counterpart.

cond-mat.mes-hall↗

arXiv2012

Bipolar Charge Plasma Transistor: A Novel Three Terminal Device

A distinctive approach for forming a lateral Bipolar Charge Plasma Transistor (BCPT) is explored using 2-D simulations. Different metal work-function electrodes are used to induce n- and p-type charge plasma layers on undoped SOI to form the emitter, base and collector regions of a lateral NPN transistor. Electrical characteristics of the proposed device are simulated and compared with that of a conventionally doped lateral bipolar junction transistor with identical dimensions. Our simulation results demonstrate that the BCPT concept will help us realize a superior bipolar transistor in terms of a high current gain compared to a conventional BJT. This BCPT concept is suitable in overcoming doping issues such as dopant activation and high-thermal budgets which are serious issues in ultra thin SOI structures.

cond-mat.mes-hall↗