Method of manufacturing a piezoelectric vibrator
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United States of America Patent
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May 28, 2013
Grant Date -
Dec 16, 2010
app pub date -
Aug 20, 2010
filing date -
Feb 21, 2008
priority date (Note) -
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Abstract
When a base substrate where through electrodes are formed is anodically bonded to a lid substrate that includes a bonding film formed on the entire lower surface thereof, a method of manufacturing a piezoelectric vibrator includes a superimposing process for superimposing the lid substrate on the base substrate so that a piezoelectric vibrating reed is received in a cavity, after bonding the piezoelectric vibrating reed to the upper surface of the base substrate; a setting process for placing a dummy member, which is made of a material in which ions can be transferred at a bonding temperature, on an electrode plate, and placing the superimposed substrates on the dummy member so that the base substrate faces the dummy member; and an applying process for applying a bonding voltage between the electrode plate and the bonding film after heating the dummy member and the substrates up to the bonding temperature.
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