Invention Grant
US08304965B2 Package, method for manufacturing the same, piezoelectric vibrator, oscillator, electronic device, and radio-controlled timepiece 失效
封装,制造方法,压电振子,振荡器,电子装置和无线电控制的钟表

Package, method for manufacturing the same, piezoelectric vibrator, oscillator, electronic device, and radio-controlled timepiece
Abstract:
Providing a package and a method for manufacturing the package capable of achieving improvement in the degree of vacuum in the cavity, and to provide a piezoelectric vibrator, an oscillator, an electronic device, and a radio-controlled timepiece. There is provided a package which includes a plurality of kinds of gettering materials 20, 21 having different activation temperatures and which are capable of being activated by heating is disposed in the cavity C.
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