Comparative Analysis of Dielectric Modulated Junctionless FinFET Biosensor and Junctionless DG MOSFET Biosensor for Medical Instrumentation

2019 International Conference on Power Electronics, Control and Automation (ICPECA) Pub Date : 2019-11-01 DOI:10.1109/ICPECA47973.2019.8975506

Himani Dua Sehgal, Yogesh Pratap, Mridula Gupta, S. Kabra

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引用次数: 4

Abstract

In this work, a comprehensive comparative analysis of a junctionless FinFET and a junctionless double gate (DG) MOSFET as label free biosensor has been carried out. Nanogap cavity is created and filled with different biomolecules having dielectric constant ranging from 1 to 10. Different sensing parameters including threshold voltage, OFF current, surface potential gradient and ratio of ON current to OFF current (Ion/Ioff) are used for the detection of biomolecules. These parameters are compared for JLT FinFET and JLT DG MOSFET to find out which device provides better sensitivity as a biosensor. Other sensing parameters which have been calculated to analyze the performance of JLT FinFET biosensor are drain current, transconductance (gm) and output-conductance (gd). Different parameters are analyzed for the detection of biomolecules to find out which parameter provides better sensitivity as a detecting parameter. Threshold Voltage, Surface Potential and OFF current are better sensing parameters for lower values of gate voltage.

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医用仪器用介电调制无结FinFET生物传感器与无结DG MOSFET生物传感器的比较分析

在这项工作中，对无结FinFET和无结双栅(DG) MOSFET作为无标签生物传感器进行了全面的比较分析。利用介电常数为1 ~ 10的不同生物分子填充纳米隙腔。不同的传感参数包括阈值电压、OFF电流、表面电位梯度和ON电流与OFF电流的比值(Ion/Ioff)用于生物分子的检测。比较JLT FinFET和JLT DG MOSFET的这些参数，以找出哪种器件作为生物传感器具有更好的灵敏度。为分析JLT FinFET生物传感器的性能，还计算了漏极电流、跨导(gm)和输出导(gd)等传感参数。对生物分子检测的不同参数进行了分析，找出了灵敏度较高的检测参数。阈值电压、表面电位和关断电流是较低栅极电压的较好检测参数。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2019 International Conference on Power Electronics, Control and Automation (ICPECA)

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