Semiconductor device, liquid discharge head, and liquid discharge apparatus
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United States of America Patent
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Jul 19, 2016
Grant Date -
Sep 10, 2015
app pub date -
Mar 4, 2015
filing date -
Mar 5, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A semiconductor device which is provided to correspond to each of a plurality of nozzles discharging a liquid and controls a plurality of drive elements causing a liquid to be discharged from each nozzle by an application of a drive signal includes a detection circuit which detects a residual vibration signal of the drive element, an output terminal which is provided to correspond to each of the plurality of drive elements, a discharge transistor which controls an application of the drive signal to the drive element through the output terminal, and a detection transistor which controls an application of the residual vibration signal to the detection circuit through the output terminal, in which the detection transistor is smaller than the discharge transistor in size, and the discharge transistor is disposed between the detection transistor and the output terminal.
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