发明名称 |
FIRST AND SECOND ORDERS TEMPERATURE-COMPENSATED RESONATOR |
摘要 |
The resonator has a micro electro-mechanical system body i.e. bar, with a core formed of a plate formed at a cut angle in a quartz crystal determining first and second orders temperature coefficients. The body includes a coating deposited partially on the core, where the cut angle of the plate and thickness (d) of the coating are adapted according to thermoelastic coefficients of the coating to obtain first and second orders temperature coefficients of the resonator in order to render the temperature coefficients to be zero. The coating is made of germanium oxide and tantalum oxide. |
申请公布号 |
HK1166557(A1) |
申请公布日期 |
2016.04.08 |
申请号 |
HK20120107209 |
申请日期 |
2012.07.23 |
申请人 |
THE SWATCH GROUP RESEARCH AND DEVELOPMENT LTD. |
发明人 |
THIERRY HESLLER;SILVIO DALLA PIAZZA |
分类号 |
H03H |
主分类号 |
H03H |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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