CMOS-compatible SOI Micro-Hotplate-based Oxygen Sensor

被引:0
|
作者
Avramescu, Viorel [1 ]
De Luca, Andrea [2 ]
Brezeanu, Mihai [1 ]
Ali, Syed Zeeshan [3 ]
Udrea, Florin [2 ,3 ]
Buiu, Octavian [1 ]
Cobianu, Cornel [1 ]
Serban, Bogdan [1 ]
Gardner, Julian [4 ]
Dumitru, Viorel [1 ]
Stratulat, Alisa [1 ]
机构
[1] Sensors & Wireless Lab Bucharest, ACS Global Lab, Honeywell Romania, 169A Calea Floreasca, Bucharest, Romania
[2] Univ Cambridge, Dept Engn, CAPE Bldg,9 JJ Thomson Ave, Cambridge CB3 0FA, England
[3] Cambridge CMOS Sensors Ltd, Deanland House,160 Cowley Rd, Cambridge CB4 0DL, England
[4] Univ Warwick, Sch Engn, Coventry CV4 7AL, W Midlands, England
基金
英国工程与自然科学研究理事会;
关键词
GAS-SENSOR; TEMPERATURE; SOICMOS;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The paper reports upon the design and characterization of a resistive O-2 sensor, which is fully CMOS-compatible and is based on an ultra-low-power Silicon on Insulator (SOI) micro-hotplate membrane. The microsensor employs SrTi0.4Fe0.6O2.8 (STFO60) as sensing layer. Thermo-Gravimetric Analysis (TGA) Energy-Dispersive X-ray Spectroscopy (EDX), X-ray Diffraction (XRD) and Scanning Electron Microscope (SEM) techniques have been used to assess the quality of both the sensing layer and STFO-SOI interface. At room temperature, the SOI sensor shows good sensitivity and fast response time (<= 6 seconds) to O-2 concentration ranging from 0% to 20% in a nitrogen atmosphere. This is the first experimental result showing the potential of this structure as O-2 sensor.
引用
收藏
页码:280 / 283
页数:4
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