Biochemical sensing of charged polyelectrolytes with a novel CMOS floating-gate device architecture

被引：0

作者：

Chen, Baozhen ^{[1
]}

Tao, Chengwu ^{[1
]}

William, Sumarlin ^{[1
]}

Pandey, Santosh ^{[1
]}

机构：

[1] Iowa State Univ, Dept Elect & Comp Engn, Ames, IA 50011 USA

来源：

2008 IEEE INTERNATIONAL CONFERENCE ON ELECTRO/INFORMATION TECHNOLOGY | 2008年

关键词：

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

Novel CMOS device is proposed as a biochemical sensor. We modified the basic architecture of an extended floating-gate field-effect transistor (FET) to be suited for VLSI applications. The FET has a floating-gate that is umbrella-shaped (UGFET), maximizing its charge sensing area in a much reduced transistor area. Compared to previous extended floating-gate structures, the UGFET shows improved scalability and sensitivity. 3-D device simulations validate the UGFET model. The design is fabricated in a standard CMOS process and characterized. Experimental results are presented employing transconductance and subthreshold measurement schemes which confirm its high sensitivity and workability.

引用

页码：300 / 303

页数：4

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