Abstract
Laminated 3D structures made using low-temperature co-fired ceramic (LTCC) technology are practical for ceramic micro-electro-mechanical systems (C-MEMS). The sensors for mechanical quantities, and/or actuators, are fundamental parts of MEMS. Thick-film resistors can be used to sense the mechanical deformations, and thick-film piezoelectric materials can be used as electro-mechanical transducers in a C-MEMS structure. The integration of these thick-film materials on LTCC substrates is in some cases difficult to realise due to interactions with the rather glassy LTCC substrates. The subject of our work is an investigation of thick-film materials for electro-mechanical transducers (sensors and actuators) and their compatibility with LTCC substrates. Resistors made with commercial thick-film resistor materials for use as sensors on LTCC substrates have been investigated and evaluated. Ferroelectric ceramic materials based on solid solutions of lead zirconate titanate (PZT) with low firing temperatures around 850°C were developed for thick-film technology and evaluated on LTCC substrates.
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References
N. Maluf, K. Williams, An Introduction to Microelectromechanical System Engineering, (Artech House, Norwood, 2004)
D. Belavič, S. Šoba, M. Hodnik, M. Pavlin, S. Gramc, M. Hrovat, Low-cost force sensor for an electronic scale, Inf. MIDEM 27, 172–176 (1997)
R. Del’Acqua, Sensors: a great chance for microelectronic technologies, Inf. MIDEM 24, 248–257 (1994)
N.M. White, J.D. Turner, Thick film sensors: past, present and future. Meas. Sci. Technol. 8, 1–20 (1997)
D. Belavič, M. Hrovat, M. Pavlin, M. Santo Zarnik, Thick-film technology for sensor applications, Inf. MIDEM 33, 45–48 (2003)
D. Belavič, M. Hrovat, M. Pavlin, S. Gramc, Low-cost Thick-film Strain Gauge Applications, Proceedings of the 13th European Microelectronics and Packaging Conference, Strasbourg, France, pp. 103–108 (2001)
T. Thelemann, H. Thust, M. Hintz, Using LTCC for microsystems. Microelectron. Int. 19, 19–23 (2002)
L.J. Golonka, A. Dziedzic, J. Kita, T. Zawada, LTCC in microsystem application. Inf. MIDEM 32, 272–279 (2002)
C.J. Ting, C.S. Hsi, H.J. Lu, Interactions between ruthenium-based resistors and cordierite-glass substrates in low temperature co-fired ceramics. J. Am. Ceram. Soc. 83, 2945–2953 (2000)
A.A. Shapiro, D.F. Elwell, P. Imamura, M.L. MeCartney, Structure-property Relationships in Low-temperature Cofired Ceramic, Proceedings of the 1994 International Symposium on Microelectronics ISHM-94, Boston, MA, pp. 306–311 (1994)
J.H. Jean, C.R. Chang, Camber development during cofiring Ag-based low-dielectric-constant ceramic package. J. Mater. Res. 12, 2743–2750 (1997)
R.E. Doty, J.J. Vajo, A Study of Field-assisted Silver Migration in Low Temperature Cofirable Ceramic, Proceedings of the 1995 International Symposium on Microelectronics ISHM-95, Los Angeles, CA, pp. 468–474 (1995)
T. Maeder, C. Jacq, H. Briol, P. Ryser, High-strength Ceramic Substrates for Thick-film Sensor Applications, Proceedings of the 14th European Microelectronics and Packaging Conference, Frieddrichshafen, Germany, pp. 133–104 (2003)
C. Grimaldi, T. Maeder, P. Ryser, S. Strässler, Critical behaviour of the piezoresistive response in RuO2-glass composites. J. Phys. D: Appl. Phys. 36, 1341–1348 (2003)
C. Grimaldi, S. Vionnet-Menot, T. Maeder, P. Ryser, Effect of Composition and Microstructure on the Transport and Piezoresistive Properties of Thick-film Resistors, Proceedings of the XXVIII International Conference of IMAPS Poland chapter, Wroclaw, Poland, pp. 35–42 (2004)
M. Hrovat, D. Belavič, J. Holc, S. Šoba, An evaluation of some commercial thick film resistors for strain gauges, J. Mater. Sci. Lett. 13, 992–995 (1994)
M. Hrovat, D. Belavič, Z. Samardzija, J. Holc, A characterisation of thick film resistors for strain gauge applications. J. Mater. Sci. 36, 2679–2689 (2001)
M. Hrovat, A. Benčan, D. Belavič, J. Holc, G. Dražič, The influence of firing temperature on the electrical and microstructural characteristics of thick-film resistors for strain gauge applications, Sens. Actuators, A, Phys. 103, 341–352 (2003)
P. Tran-Huu-Hue, F. Levassort, F.V. Meulen, J. Holc, M. Kosec, M. Lethiecq, Preparation and electromechanical properties of PZT/PGO thick films on alumina substrates. J. Eur. Ceram. Soc. 21, 1445–1449 (2001)
B. Jaffe, W.R. Cook, H. Jaffe, Piezoelectric Ceramics, (Academic, London, 1971), pp. 115–127
M. Hrovat, J. Holc, S. Drnovšek, D. Belavič, J. Bernard, M. Kosec, L. Golonka, A. Dziedzic, J. Kita, Characterization of PZT thick films fired on LTCC substrates. J. Mater. Sci. Lett. 22, 1193–1195 (2003)
M. Kosec, J. Holc, F. Levassort, L.P. Tran-Huu-Hue, M. Lethiecq, Screen-printed Pb(Zr,Ti)O3 Thick Films for Ultrasonic Medical Imaging Applications, Proc. 34th Int. Symp. on Microelectronics IMAPS-2001, Baltimore, pp. 195–200 (2001)
H.D. Chen, K.R Udayakumar, L.E. Cross, J.J. Bernstein, L.C. Niles, Dielectric, ferroelectric and piezoelectric properties of lead zirconate titanate thick films on silicon substrates. Appl. Phys. 77, 3349–3353 (1995)
Acknowledgements
The authors wish to thank Mr. Mitja Jerlah (HIPOT-RR) for printing and firing the samples as well as for measuring the electrical characteristics.
The financial support of the Slovenian Research Agency in the frame of the project L2-6462 and the EC support of the project MINUET (FP6-505657) and NoE MIND (FP6-515757) are gratefully acknowledged.
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Belavic, D., Hrovat, M., Holc, J. et al. The application of thick-film technology in C-MEMS. J Electroceram 19, 363–368 (2007). https://doi.org/10.1007/s10832-007-9064-z
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DOI: https://doi.org/10.1007/s10832-007-9064-z