Semiconductor device
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United States of America Patent
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Oct 25, 2016
Issued Date -
Oct 1, 2015
app pub date -
Mar 27, 2015
filing date -
Mar 27, 2015
priority date (Note) -
Withdrawn
status (Latency Note)
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Abstract
Provided is a semiconductor device including a sequential circuit including a first transistor and a capacitor. The first transistor includes a semiconductor layer including indium, zinc, and oxygen to form a channel formation region. A node electrically connected to a source or a drain of the first transistor and a capacitor becomes a floating state when the first transistor turns off, so that a potential of the node can be maintained for a long period. A power-gating control circuit may be provided to control supply of power supply potential to the sequential circuit. The potential of the node still can be maintained while supply of the power supply potential is stopped.
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