Surface mountable piezoelectric device using a metallic support

Details Surface mountable piezoelectric device using a metallic support Surface mountable piezoelectric device using a metallic support

1992-06-26

1994-01-25

Lee, Benny

Wave transmission lines and networks

Coupling networks

Electromechanical filter

333188, 333191, 333192, 310348, H03H 948

Patent

active

052819353

ABSTRACT:
A surface mountable piezoelectric device that includes an in situ finish plate mask is mounted on a substrate (20) that includes feedthrough holes (26, 28, and 30) to conduct signals from a piezoelectric element (40) that may include multiple resonator stages (48, 46, 50, and 56). A metallic support structure that includes windows or holes therethrough (72, 74 and 76) permits tuning of the piezoelectric device by mass loading during manufacturing, compliantly supports the piezoelectric element (40), provides RF shielding for the resonators, and is an in situ finish plate mask.

REFERENCES:
patent: 3573672 (1971-04-01), Fair et al.

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