Abstract
In this article a new multielectrode micromachined gas sensor, fabricated by silicon technology, is presented. The device enables different measuring methods which can be used to optimize the properties of resistive gas sensors, e.g. tin oxide sensors. In addition to the conventional interdigitated electrode below the sensitive film, a second interdigitated electrode has been manufactured on top of it. With the use of the two pairs of electrodes it is possible to use different electrical set-ups for resistive measurements. Firstly, the electrodes below and on top of the sensing layer lead to a different sensor behaviour. Therefore, a double sensor array is designed. Secondly, the sensor enables the application of external electric fields e.g. between one electrode and the plane heater. With the use of external electric fields both the resistivity and the sensitivity of the gas sensors could be influenced, significantly. The manufacturing of the silicon based sensor device is described in detail. Results from measurements in different nitrogen dioxide concentrations, applying both measuring principles, are presented and discussed. A qualitative model to explain the sensor properties and suggestions on how to use the new measurement method are presented.
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Göpel, W., Hesse, J., and Zemel, J.N. (eds.): Sensors, A Comprehensive Survey,Vol.2,Chemical and Biochemical Sensors, Part I, VCH Verlagsges. mbH, Weinheim (1991)
Madou, M.J., and Morrison, S.R.: Chemical Sensing with Solid State Devices, Academic Press Inc., California USA (1988)
Kohl, D., Surface processes in the detection of reducing gases with Sn02-based devices, Sensors and Actuators, 18 (1989) pp. 71–113
Morrison, S.R.: The Chemical Physics of Surfaces, Plenum Press, New York and London (1977)
Morrison, S.R.: Selectivity in Semiconductor Gas Sensors, Sensors and Actuators 12 (1987) pp. 425–440
Heiland, G.: Homogeneous semiconducting gas sensors, Sensors and Actuators 2 (1982) pp. 343–361
Heiland, G., and Kohl, D., Problems and possibilities of oxidic and organic semiconductor gas sensors, Sensors and Actuators 8 (1985) pp. 227–233
Sberveglieri, G., Recent developments in semiconducting thin-film gas sensors, Sensors and Actuators B 23 (1995) pp. 103–109
Weimar, U., and Göpel, W.: A.c. measurements on tin oxide sensors to improve selectivities and sensitivities, Sensors and Actuators B 26-27 (1995) pp. 13–18
de Agapito, J., and Santos, J.: The interaction of low N02 concentrations in air with degenerate nanocrystalline tin dioxide thin films, Sensors and Actuators B31 (1996) pp. 93–98
Diéguez, A., Romano-RodrÃguez, A., Morante, J.R., et al.: Morphological analysis of nanocrystalline Sn02 for gas sensor applications, Sensors and Actuators B31(1996)pp. 1–8
Gentry, S.J., Jones, T.A., The role of catalysts in solid-state gas sensors, Sensors and Actuators 10 (1986) pp. 141–16313
Ylinampa, A., Lantto, V., and Leppävuori, S.: Some differences between Au and Pt electrodes in Sn02 thick-film gas sensors, Sensors and Actuators B 13–14 (1993) pp. 602–604
Doll, T., Lechner, J., Eisele, I., et al.: Ozone Detection in the ppb-Range with Workfunction Sensors Operating at Room Temperature, 8th Int. Conf. on Solid-State Sensors and Actuators, and Eurosensors IX., Stockholm 1995, pp. 997–1000
Endres, H.-E., Drost, S., and Hutter, F.: Impedance spectroskopy on dielectric gas sensors, Sensors and Actuators B22 (1994) pp. 7–11
Egashira, M., Shimizu, Y., Takao, Y., and Sako, S.: Variations in I-V characteristics of oxide semiconductors induced by oxidizing gases, Sensors and Actuators B35-36 (1996) pp. 62–67
Getino, J., Gutiérrez, J., Arés; L., et al.: Integrated sensor array for gas analysis in combustion atmospheres, Proc. 8th Int. Conf. on Solid-State Sensors and Actuators, and Eurosensors IX., Stockholm 1995, pp. 803–806
Hellmich, W., Müller, G., Bosch-v.Braunmühl, C, et al.: Field-Effect-Induced Gas Sensitivity Changes in Metal Oxides, Proc. Eurosensors X, Leuven (Belgium), 1996, pp. 505–508
Di Natale, C, Davide, F., and D’Amico, A.: Pattern recognition in gas sensing: well-stated techniques and advances, Sensors and Actuators B23 (1995) pp. 111–11820
Hausner, M: Silizium-basiertes Sensorsystem zur Erfassung von Spurengasen in Luft mittels mikrostrukturierter Multielektroden-Anordnungen, Dissertationsschrift, Universität Bremen (1997)
Hausner, M; Zacheja, J.; Binder, J.: Multi-electrode substrate for selectivity enhancement in air monitoring, Sensors and Actuators B43 (1997) pp. 11–17
Storm, U. Bartels, O. Binder, J.: Sensitivity Enhancement for Resistive Gas Sensors by External Electrical Fields. Proceedings of Sensor′99, Nürnberg (Mai 1999) pp. 487–491.
Bartels, O., Splinter, A., Storm, U., and Binder, J.: Thick porous silicon layers as sacrificial material for low power gas sensors, Proceedings of SPIE Volume 3892, pp. 184–191, Device and Process Technologies for MEMS and Microelectronics (October 1999, Queensland, Australia)
Hausner, M., Storm, U., Karagözoglu, H., Zacheja, J., and Binder, J.: Air Monitoring by a Combined Resistive and Field Effect Sensor Device, Proc. 9th Int. Conf. on Solid-State Sensors and Actuators (Transducers’97), Chicago (USA), June 16–19,1997
Geistlinger, H.: Equilibrium theory of chemisorption and bulk diffusion of MO-THIN-FILMS, Proc. 8th Int. Conf. on Solid-State Sensors and Actuators, and Eurosensors IX., Stockholm 1995, pp. 863–865
Geistlinger, H.: Semi-klassisches Modell und phänomenologische Elektronentheorie der Chemisorption halbleitender Metalloxid-Dünnschichten Habilitationsschrift, TU Ilmenau (1997)
Laurs, H. and Heiland, G., Electrical and Optical Properties of Phtalocyanine Films, Thin Solid Films, 149 (1987) 129 ff.
Hellmich, W.: Feldinduzierte Empfindlichkeitssteuerung bei mikromechanisch hergestellten Halbleitergassensoren auf Sn02-Basis Dissertationsschrift, Universität der Bundeswehr München (1996)
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Hausner, M., Storm, U., Bartels, O., Binder, J. (2003). Multielectrode Micromachined Gas Sensors. In: Doll, T. (eds) Advanced Gas Sensing. Springer, Boston, MA. https://doi.org/10.1007/978-1-4419-8612-2_5
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DOI: https://doi.org/10.1007/978-1-4419-8612-2_5
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