METHOD FOR IMPROVING TEMPERATURE AND FREQUENCY CHARACTERISTICS OF GLASS-PACKAGED CRYSTAL RESONATORS Russian patent published in 2007 - IPC H01L41/22 H03H3/04 

Abstract RU 2308790 C2

FIELD: radio electronics.

SUBSTANCE: piezoid is exposed to focused pulse radiation of laser beyond disposition region of electrodes at Q-factor modulation with energy density in laser beam constriction exceeding laser destruction threshold of crystal piezoid to produce microscopic destruction therein measuring 30 to 100 μm. Impact points are chosen at distance L = (3t + 0.5) mm from piezoid electrode edge, where t is piezoid thickness in millimeters. Laser radiation energy density is below laser destruction threshold of resonator glass package residing beyond laser beam constriction region.

EFFECT: improved monotony of glass-packaged crystal resonator temperature and frequency characteristics with basic parameters retained.

1 cl, 1 dwg

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RU 2 308 790 C2

Authors

Pashkov Sergej Sergeevich

Naumov Valentin Sergeevich

Kalashnikova Irina Isakovna

Vasil'Ev Aleksandr Mikhajlovich

Dates

2007-10-20Published

2005-12-13Filed