"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

Comparative analytical analysis of various configurations of nanoscaled dielectric-modulated double gate MOSFET based biosensors

B. BUVANESWARI1,* , N. B. BALAMURUGAN2

Affiliation

  1. Department of Computer Science and Engineering, K.L.N. College of Engineering, Madurai, Tamilnadu, India-630612
  2. Department of Electronics and Communication Engineering, Thiyagarajar College of Engineering, Madurai, Tamilnadu, India-625015

Abstract

In this paper, an analytical model for DG MOSFET based biosensor has been developed by applying Dielectric Modulation (DM) technique. This paper dealt with three types of DG MOSFET structures. These structures are classified with respect to the location of a uncovered region, which is acting as a door for the biomolecules. The uncovered region is called as a nanocavity region, that is formed by etching the gate oxide layer. In the first configuration, biomolecules are immobilized near the source. In the second configuration, the immobilization has been done near the drain. In the next configuration, the biomolecules are interacting through the vicinity of both the source and drain regions. This paper summarizes the performance metric such as sensitivity of the various biosensors and the metrics have been compared. The short channel effects of various configurations are analyzed and their mitigation level is compared , in order to put forward a optimum device structure in a nanoscaled limit..

Keywords

Poisson 's equation, Parabolic approximation, Short channel effects, Biosensor.

Submitted at: March 14, 2018
Accepted at: Oct. 10, 2018

Citation

B. BUVANESWARI, N. B. BALAMURUGAN, Comparative analytical analysis of various configurations of nanoscaled dielectric-modulated double gate MOSFET based biosensors, Journal of Optoelectronics and Advanced Materials Vol. 20, Iss. 9-10, pp. 526-536 (2018)