Quartz crystal unit, quartz crystal oscillator and electronic apparatus
作者： Hirofumi Kawashima
DOI:
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摘要: In a quartz crystal unit, the unit comprising resonator having base portion, and first second vibrational arms connected to at least one groove being formed in of opposite main surfaces each arms, length portion less than 0.5 mm an overall 2.1 mm, mounting arm protruding from between extending common direction with arms.
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