Abstract
A length extensional mode lead zirconate titanate (PZT)-on-Si resonator is presented using 50 Ω
termination with high-stopband rejection exploiting feed-through cancellation. A 250-nm-thick
(100)-dominant oriented PZT thin-film deposited on top of 3 µm Si using pulsed laser deposition has
been used. The resonator is presented with the length of 40 µm (half-wavelength), which corresponds
to a resonance frequency of about 83 MHz. The effect of feed-through cancellation has been studied
to obtain high-stopband rejection using bottom electrode patterning in the presence of a specific
grounding resistance. Using this technique, the stopband rejection can be improved by more than
20 dB.
Original language | Undefined |
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Article number | 063509 |
Pages (from-to) | 063509 |
Number of pages | 4 |
Journal | Applied physics letters |
Volume | 102 |
Issue number | 6 |
DOIs | |
Publication status | Published - 14 Feb 2013 |
Keywords
- EWI-23112
- Feed-through cancellation
- TST-ACTUATORS
- IR-84248
- RF MEMS
- PZT
- METIS-294472
- MEMS