Quartz oscillator manufacturing method and quartz oscillator

Oscillators – Electromechanical resonator

Reexamination Certificate

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Details

C331S156000, C331S158000, C073S504120, C073S504140, C073S504160, C310S370000

Reexamination Certificate

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07394326

ABSTRACT:
A method for manufacturing a quartz oscillator having a stable temperature drift characteristic attributed to the quartz oscillating piece and a quartz oscillator are disclosed.The method comprises a quartz crystal etching step S1of processing a quartz oscillating piece into a predetermined shape by etching, an electrode membrane forming step S2of forming an electrode on the quartz oscillating piece, a quartz crystal mounting step S3of mounting the quartz oscillating piece in an oscillator package, a leakage oscillation adjusting step S4of driving the mounted quartz oscillating piece, detecting the leakage oscillation, and removing a part of the quartz oscillating piece depending on the detected leakage oscillation, and a re-etching step S6of re-etching the quartz oscillating piece subjected to the removal.

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patent: 6675651 (2004-01-01), Yanagisawa et al.
patent: 6806797 (2004-10-01), Kikushima
patent: 2001-196891 (2001-07-01), None
patent: 2002-243451 (2002-08-01), None
patent: 2003-28645 (2003-01-01), None
patent: 2004-77453 (2004-03-01), None
patent: 2004-079869 (2004-03-01), None
patent: 2004-93158 (2004-03-01), None

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