Semiconductor device
First Claim
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1. A semiconductor device comprising:
- a first circuit including a variable resistance element;
a second circuit electrically connected to the first circuit; and
an antenna circuit configured to supply power to the first circuit,wherein;
a resistance value of the variable resistance element is changed in accordance with the power supplied from the antenna circuit,the variable resistance element is electrically connected in series between the second circuit and the antenna circuit, andthe antenna circuit has a first terminal and a second terminal, and the variable resistance element is electrically connected to the first terminal and not connected to the second terminal.
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Abstract
A semiconductor device is provided, which comprises a first circuit including a variable resistance element, a second circuit electrically connected to the first circuit, and an antenna circuit configured to supply power to the first circuit. A resistance value of the variable resistance element is changed in accordance with the power supplied from the antenna circuit, and the variable resistance element is electrically connected in series between the second circuit and the antenna circuit.
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Citations
27 Claims
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1. A semiconductor device comprising:
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a first circuit including a variable resistance element; a second circuit electrically connected to the first circuit; and an antenna circuit configured to supply power to the first circuit, wherein; a resistance value of the variable resistance element is changed in accordance with the power supplied from the antenna circuit, the variable resistance element is electrically connected in series between the second circuit and the antenna circuit, and the antenna circuit has a first terminal and a second terminal, and the variable resistance element is electrically connected to the first terminal and not connected to the second terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A semiconductor device comprising:
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a first circuit including a variable resistance element; a second circuit electrically connected to the first circuit; an antenna circuit configured to supply power to the first circuit; and a third circuit including a first portion and a second portion, wherein; the first portion configured to detect an output of the first circuit, the second portion configured to make a comparison between an output of the first portion and reference power, a resistance value of the variable resistance element is changed in accordance with a result of the comparison, the variable resistance element is electrically connected in series between the second circuit and the antenna circuit, and the antenna circuit has a first terminal and a second terminal, and the variable resistance element is electrically connected to the first terminal and not connected to the second terminal. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A semiconductor device comprising:
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a first circuit including a variable resistance element; a second circuit electrically connected to the first circuit; an antenna circuit configured to supply power to the first circuit; and a third circuit including a first portion and a second portion, wherein; the first portion configured to detect second power outputted from the first circuit and convert the second power into third power to output, the second portion configured to make a comparison between the third power and reference power and generate a signal in accordance with a result of the comparison, a resistance value of the variable resistance element is changed in accordance with the signal, the variable resistance element is electrically connected in series between the second circuit and the antenna circuit, and the antenna circuit has a first terminal and a second terminal, and the variable resistance element is electrically connected to the first terminal and not connected to the second terminal. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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Specification