| 摘要 |
A crystal oscillator module and method to manufacture the crystal oscillator module by sandwich method on a bottom-base, as a printed board ( 4 ), where the oscillator crystal ( 1 ) is for instance fixed onto the surface of the printed district board ( 4 ). On the opposite surface of the printed district board, at least partly at oscillator crystal ( 1 ), in order to increase the thickness of the printed district board ( 4 ), one or several elements ( 5 ) are fixed, by means of which a cavity is formed for components included module.
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