Piezoelectric device and electronic apparatus
AssigneeSeiko Epson Corporation
InventorKyo HORIE
Life of this patent
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Abstract
A piezoelectric device includes an insulating substrate, a piezoelectric vibration device that is mounted on a device mounting pad, a metal lid member that seals the piezoelectric vibration device in an airtight manner, an external pad that is arranged outside the insulating substrate, an oscillation circuit, a temperature compensation circuit, and a temperature sensor. The lid member and the temperature sensor or the lid member and the IC component are connected to each other so as to be heat-transferable, and a heat transfer member having thermal conductivity higher than that of the material of the insulating substrate is additionally included.
Claims20
An oscillation equipment comprising:
- a vibration device including a package, the package containing an insulating substrate and a lid;
- a vibration element installed in the package;
- an oscillation circuit that drives the vibration device;
- a temperature compensation circuit that supplies a signal to the oscillation circuit for compensating temperature characteristics;
- a temperature sensor that outputs analog temperature information;
- and
- an A/D converter that converts the analog temperature information into a digital temperature signal and that supplies the digital temperature signal to the temperature compensation circuit,
- wherein the lid and the temperature sensor are connected with a metal material.
Dependencies are inferred from the claim text.