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Combined smart chemFET/resistive sensor array
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Covington, James A., Tan, S. L., Gardner, J. W., Hamilton, A., Koickal, T. and Pearce, T. (2004) Combined smart chemFET/resistive sensor array. In: 2nd IEEE International Conference on Sensors , Toronto, Canada, 22-24 Oct 2003. Published in: Proceedings of the IEEE Sensors 2003, Vols 1 and 2 pp. 1120-1123. ISBN 0780381335. ISSN 1930-0395.
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Official URL: http://dx.doi.org/10.1109/ICSENS.2003.1279118
Abstract
Here we describe a novel CMOS compatible gas sensor array based on a combined resistive/chemFET sensor cell. We have fabricated an array of 70 sensors with integrated drive, gain and baseline removal circuitry using an AMS 0.6 mum CMOS process. The sensing materials are carbon black/polymer composite (CB) thin films, which have been previously reported to have good vapour-sensing properties. Different CB films have been deposited onto the sensor array and have been shown to respond differently to volatile organic compounds. This combined sensing element both reduces silicon area and, more importantly, measures different physical properties of the same gas sensitive material improving discrimination and giving more insight into the sensing mechanism.
| Item Type: | Conference Item (Paper) | ||||
|---|---|---|---|---|---|
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||
| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
| Series Name: | IEEE Sensors | ||||
| Journal or Publication Title: | Proceedings of the IEEE Sensors 2003, Vols 1 and 2 | ||||
| Publisher: | IEEE | ||||
| ISBN: | 0780381335 | ||||
| ISSN: | 1930-0395 | ||||
| Official Date: | 5 April 2004 | ||||
| Dates: |
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| Number of Pages: | 4 | ||||
| Page Range: | pp. 1120-1123 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Conference Paper Type: | Paper | ||||
| Title of Event: | 2nd IEEE International Conference on Sensors | ||||
| Type of Event: | Conference | ||||
| Location of Event: | Toronto, Canada | ||||
| Date(s) of Event: | 22-24 Oct 2003 |
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