Mechanical resonator optimization using shear wave damping
US8335356B2 · kind B2 · utility
86Cited by
1References
11Claims
0Family size
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Key dates
| Filing date | May 8, 2008 |
| Grant date | Dec 18, 2012 |
| Priority date | — |
| Expiry date | Jan 15, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/1306
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.