Shock recording device
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United States of America Patent
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Apr 10, 2018
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N/A
app pub date -
Feb 16, 2015
filing date -
Feb 25, 2014
priority date (Note) -
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Abstract
The present invention provides a shock recording device includes: an electric power source; a vibration energy harvester including a first electrode and a second electrode, the vibration energy harvester converting an energy of a shock applied thereto into a potential difference between the first electrode and the second electrode; a first transistor including a first gate electrode, a first source electrode, and a first drain electrode, the first transistor further including a stacked structure of a ferroelectric layer and a semiconductor layer; and a second transistor including a second gate electrode, a second source electrode, and a second drain electrode. The second gate electrode is electrically connected to the first electrode. The second drain electrode is electrically connected to the electric power source. The second source electrode is electrically connected to the first gate electrode. The first source electrode is electrically connected to the second electrode.
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