Patent ID: 8390387

Claim:
A crystalline semiconductor resonator device comprising: a first resonator having an elongate spring member which includes a first portion of a crystalline semiconductor, for supporting a semiconductor resonator mass of the first resonator; a second resonator having an elongate spring member which includes a second portion of the crystalline semiconductor for supporting a resonator mass of the second resonator, wherein the elongate spring members are aligned with respect to a crystal structure of the crystalline semiconductor such that the respective elongate spring members have Young's moduli that are different from one another, wherein the elongate spring members of the first and second resonators each include a portion of a material having a temperature dependency of the Young's modulus that is different than a temperature dependency of the Young's modulus of the crystalline semiconductor; and a measurement device for measuring a resonant frequency ratio between the first and second resonators at a calibration temperature and an operation temperature and for deriving therefrom a frequency of one of the resonators at the operation temperature which takes into account the temperature dependency of the one of the resonators.