Metal working – Piezoelectric device making
Patent
1979-05-18
1981-04-28
Hall, Carl E.
Metal working
Piezoelectric device making
H01L 4122
Patent
active
042637023
ABSTRACT:
A quartz resonator is made from a chemically polished quartz plate. The plate is placed in an enclosure fitted with at least three mounting clips to receive the plate. The plate is secured to the clips with an electrically conductive adhesive capable of withstanding operation at 350 degrees C. The assembly is cleaned and a metallic electrode deposited onto the plate until the desired frequency is reached. The enclosure is then hermetically sealed. The resulting resonator can consistently withstand extremely high shocks.
REFERENCES:
patent: 3931388 (1976-01-01), Hafner
"Polyimide Bonded Resonators"; Filler et al., Jun. 1978.
"The Effect of Bonding on the Frequency Vs. Temp. Characteristics of AT-Cut esonators"; Filler et al., 1976.
"Force Frequency Compensation . . .", Ballato; Jul. 1978.
Filler Raymond L.
Frank James M.
Peters R. Donald
Vig John R.
Edelberg Nathan
Gordon Roy E.
Hall Carl E.
Kanars Sheldon
The United States of America as represented by the Secretary of
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