Harris, N.R., Hill, M., Torah, R., Townsend, R., Beeby, S., White, N.M. and Ding, J.
A multilayer thick-film PZT actuator for MEMs applications
Sensors and Actuators A: Physical, 132, (1), . (doi:10.1016/j.sna.2006.06.006).
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This paper describes a technique for replacing the conventional bonded bulk PZT transducer, commonly used in MEMS devices, with a screen printed equivalent. Previously, the piezoelectric activity available from screen printed PZT has been considerably lower than the bulk material, but recent developments in material composition and device structure have allowed screen printed structures to deliver powers equivalent to bulk devices. An actuator using the multilayer screen printed technique was designed for use in an ultrasonic flow-through separator, and its successful use is reported.
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