Mechanically biased semiconductor strain sensitive microphone
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United States of America Patent
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-
Jan 8, 1980
Grant Date -
N/A
app pub date -
Sep 21, 1978
filing date -
Sep 21, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A piezo-electric transducer element is disclosed which is formed by selected etchings from boron doped silicon. The transducer includes a diaphragm and a spring lever adapted to bias the transducer element into a state of strain so that a vibration of the diaphragm is transmitted to the transducer element. The transducer element is particularly suitable for use in a telephone microphone.
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