Wireless semiconductor device having low power consumption
First Claim
1. A semiconductor device comprising:
- a logic portion;
a memory portion;
a detecting portion for detecting at least one of an operation frequency of the logic portion and an operation frequency of the memory portion;
a Vth control for supplying a Vth control signal to at least one of the logic portion and the memory portion depending on a detection result from the detecting portion; and
an antenna,wherein each of the logic portion and the memory portion comprises at least one transistor;
wherein the at least one transistor has a first gate electrode which is input with a logic signal and a second gate electrode which is input with the Vth control signal, andwherein at least the logic portion is provided with electric power from the antenna.
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Accused Products
Abstract
The invention provides a semiconductor device that power is stabilized by suppressing power consumption as much as possible. The semiconductor device of the invention includes a logic portion and a memory portion each including a plurality of transistors, a detecting portion for detecting one or both of operation frequencies of the logic portion and the memory portion, a Vth control for supplying a Vth control signal to one or both of the logic portion and the memory portion, and an antenna. Each of the plurality of transistors has a first gate electrode which is input with a logic signal, a second gate electrode which is input with the Vth control signal, and a semiconductor film such that the second gate electrode, the semiconductor film, and the first gate electrode are provided in this order from the bottom.
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Citations
12 Claims
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1. A semiconductor device comprising:
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a logic portion; a memory portion; a detecting portion for detecting at least one of an operation frequency of the logic portion and an operation frequency of the memory portion; a Vth control for supplying a Vth control signal to at least one of the logic portion and the memory portion depending on a detection result from the detecting portion; and an antenna, wherein each of the logic portion and the memory portion comprises at least one transistor; wherein the at least one transistor has a first gate electrode which is input with a logic signal and a second gate electrode which is input with the Vth control signal, and wherein at least the logic portion is provided with electric power from the antenna. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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2. A semiconductor device comprising:
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a logic portion; a memory portion; a detecting portion for detecting at least one of an operation frequency of the logic portion and an operation frequency of the memory portion; a Vth control for supplying a Vth control signal to at least one of the logic portion and the memory portion depending on a detection result from the detecting portion; and an antenna, wherein each of the logic portion and the memory portion comprises at least one transistor, wherein the at least one transistor has a first gate electrode which is input with a logic signal, a second gate electrode which is input with the Vth control signal, and a semiconductor film, wherein the semiconductor film is provided over the second gate electrode, wherein the first gate electrode is provided over the semiconductor film, and wherein at least the logic portion is provided with electric power from the antenna.
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Specification