BULK ACOUSTIC WAVE BASED CLOCKS FOR TIMING DEVICES
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United States of America
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Issued Date -
Jan 30, 2025
app pub date -
Jul 9, 2024
filing date -
Jul 9, 2024
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Abstract
Aspects of the disclosure provide a method of using a bulk acoustic wave (BAW) based clock. For example, a first burst pulse of ultrasonic waves may be received by a transmit transducer of a BAW delay device. A feedthrough pulse from the first burst pulse may be received at a receive transducer of the BAW delay device. After receiving the feedthrough pulse, a first echo pulse from the first burst pulse may be received at the receive transducer. The first pulse may be a reflection of a portion of the first burst pulse from a substrate. A difference in time between the receipt of the feedthrough pulse and the receipt of the first echo pulse may be used to control timing of a second burst pulse of ultrasonic waves.
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