Compact modelling and simulation of extended-gate ion-sensitive field-effect-transistor

Author

Yueyou Ma ; Chenyu Wen ; Ruixue Zeng ; Ming Xu ; Jiangfeng Pan ; Dongping Wu

Author_Institution

State Key Lab. of ASIC & Syst., Fudan Univ., Shanghai, China

fYear

2014

fDate

28-31 Oct. 2014

Firstpage

1

Lastpage

3

Abstract

Extended-gate ion sensitive field-effect-transistor (EG-ISFET), which can be easily integrated in conventional large-scale integrated circuits, has recently disrupted the field of semiconductor genetics and gained accelerated momentum in more biosensing applications. Comprehensive understanding and modeling of the EG-ISFET which generally comprises of reference electrode, electrolyte, electrical double layer and an extended-gate MOSFET are prerequisite for designing integrated circuits using EG-ISFET as the sensing device. In this work, we propose an improved equivalent circuit model of EG-ISFET and provide in-depth understanding of EG-ISFET through simulating its DC and transient characteristics using SPICE. These results pave the way to expedite using EG-ISFET in emerging semiconductor biosensing applications.

Keywords

MOSFET; biosensors; electrodes; electrolytes; equivalent circuits; ion sensitive field effect transistors; semiconductor device models; DC characteristics; EG-ISFET; SPICE; electrical double layer; electrolyte; extended-gate MOSFET; extended-gate ion-sensitive field-effect-transistor; gained accelerated momentum; improved equivalent circuit model; large-scale integrated circuits; reference electrode; semiconductor biosensing; semiconductor genetics; sensing device; transient characteristics; Electrodes; Equivalent circuits; Integrated circuit modeling; MOSFET; Semiconductor device modeling; Sensors; Transient analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State and Integrated Circuit Technology (ICSICT), 2014 12th IEEE International Conference on

Conference_Location

Guilin

Print_ISBN

978-1-4799-3296-2

Type

conf

DOI

10.1109/ICSICT.2014.7021480

Filename

7021480