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Electrically Enhanced Readout System for a High‐Frequency CMOS‐MEMS Resonator
Authors:Arantxa Uranga  Jaume Verd  Joan Lluis Lopez  Jordi Teva  Francesc Torres  Joan Josep Giner  Gonzalo Murillo  Gabriel Abadal  Nuria Barniol
Abstract:The design of a CMOS clamped‐clamped beam resonator along with a full custom integrated differential amplifier, monolithically fabricated with a commercial 0.35 μm CMOS technology, is presented. The implemented amplifier, which minimizes the negative effect of the parasitic capacitance, enhances the electrical MEMS characterization, obtaining a 48 × 108 resonant frequency‐quality factor product (Q×fres) in air conditions, which is quite competitive in comparison with existing CMOS‐MEMS resonators.
Keywords:CMOS‐MEMS  MEMS characterization  clamped‐clamped beam resonator  differential readout amplifier
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