Mechanical resonator optimization using shear wave damping
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United States of America Patent
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Dec 18, 2012
Grant Date -
Nov 12, 2009
app pub date -
May 8, 2008
filing date -
May 8, 2008
priority date (Note) -
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Abstract
Provided is a fingerprint sensor including one or more mechanical devices for capturing the fingerprint. The mechanical devices include a matrix of pillars and are configured to be mechanically damped based upon an applied load. A q factor of the pillars is optimized by adjusting a distance between pillars within the matrix in accordance with a quarter shear wavelength at an operating wavelength.
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