A new approach for the fabrication of large contour-mode single-crystal silicon resonators has been demonstrated without the use of SOI substrates. Twenty-four-megahertz disk resonators have been built thanks to industrial facilities dedicated to the integration of passive components on silicon and exhibit a good compromise between the quality factor higher than 50 000 and the motional resistance of a few kiloohms.
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Sworowski et al. (2009) studied this question.
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