Semiconductor device
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United States of America Patent
Stats
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Nov 6, 2018
Grant Date -
Jan 25, 2018
app pub date -
Aug 16, 2017
filing date -
Nov 20, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An object is to achieve low power consumption and a long lifetime of a semiconductor device having a wireless communication function. The object can be achieved in such a manner that a battery serving as a power supply source and a specific circuit are electrically connected to each other through a transistor in which a channel formation region is formed using an oxide semiconductor. The hydrogen concentration of the oxide semiconductor is lower than or equal to 5×1019 (atoms/cm3). Therefore, leakage current of the transistor can be reduced. As a result, power consumption of the semiconductor device in a standby state can be reduced. Further, the semiconductor device can have a long lifetime.
First Claim
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 4 Citation Count
- H04M Class
- 21.43 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | May 6, 2026 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 6, 2030 |
