Oscillators – Electromechanical resonator – Crystal
Patent
1993-09-02
1995-02-21
Mis, David
Oscillators
Electromechanical resonator
Crystal
331 68, 331187, 310344, 29 2535, H03B 532, H01L 4108
Patent
active
053920066
ABSTRACT:
A piezoelectric resonator is formed with a case and a stem for housing the piezoelectric vibrating portion thereof. The case and stem are coupled by press-fitting and the interface is coated with a high temperature solder containing at least 90% lead. An inner lead of the resonator is also coated with the solder and a portion of the vibrator is fixed to the lead by melting the solder. Alternative constructions employ a resin case or a metallic plate case and a configuration in which an integrated circuit and a piezoelectric vibrator are integrally molded to achieve a highly desirable mounting configuration.
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patent: 5200714 (1993-04-01), Hayashi
Ichinose Kazushige
Ikeda Tatsuo
Ogiso Hiroyuki
Mis David
Seiko Epson Corporation
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