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US 2007/0176622 A1Published application
Id chip and ic card
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorShunpei Yamazaki
Life of this patent
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Abstract
The present invention provides an ID chip or an IC card in which the mechanical strength of an integrated circuit can be enhanced without suppressing a circuit scale. An ID chip or an IC card of the present invention has an integrated circuit in which a TFT (a thin film transistor) is formed from an insulated thin semiconductor film. Further, an ID chip or an IC card of the present invention has a light-emitting element and a light-receiving element each using a non-single-crystal thin film for a layer conducting photoelectric conversion. Such a light-emitting element or a light-receiving element may be formed consecutively to (integrally with) an integrated circuit or may be formed separately and attached to an integrated circuit.
Claims16
A semiconductor device comprising:
- an antenna,
- an integrated circuit comprising a thin film transistor,
- a light-emitting element, and
- a light-receiving element,
- wherein the light-emitting element and the light-receiving element each have a layer for conducting photoelectric conversion using a non-single crystal thin film, and
- wherein the antenna, the light-emitting element and the light-receiving element are electrically connected to the integrated circuit.
3 more elements
A semiconductor device comprising:
- an antenna,
- an integrated circuit comprising a thin film transistor,
- a light-emitting element, and
- a light-receiving element,
- wherein the antenna, the light-emitting element and the light-receiving element are electrically connected to the integrated circuit, and
- wherein the integrated circuit, the light-emitting element and the light-receiving element are formed integrally.
3 more elements
A semiconductor device comprising:
- an antenna,
- an integrated circuit comprising a thin film transistor,
- a light-emitting element, and
- a light-receiving element,
- wherein the antenna, the light-emitting element and the light-receiving element are electrically connected to the integrated circuit, and
- wherein the antenna, the integrated circuit, the light-emitting element and the light-receiving element are formed integrally.
3 more elements
A semiconductor device comprising:
- an integrated circuit,
- a light-emitting element, and
- a light-receiving element,
- wherein the integrated circuit comprises a connection terminal, a rectification circuit that generates power supply voltage from an alternating current signal that is input to the connection terminal by an antenna, a demodulation circuit for demodulating a first signal received in the light-receiving element, and a logic circuit that conducts arithmetic operation according to the first signal that is demodulated to generate a second signal,
- wherein the light-emitting element can convert the second signal to an optical signal, and
- wherein the integrated circuit, the light-emitting element and the light-receiving element are formed integrally.
3 more elements
A semiconductor device comprising:
- an antenna,
- an integrated circuit comprising a thin film transistor,
- a light-emitting element, and
- a light-receiving element,
- wherein the light-emitting element and the light-receiving element each have a layer for conducting photoelectric conversion using a non-single crystal thin film,
- wherein the antenna, the light-emitting element and the light-receiving element are electrically connected to the integrated circuit, and
- wherein the integrated circuit, the light-emitting element and the light-receiving element are formed over a first substrate and then separated therefrom, and attached to a second substrate.
4 more elements
A semiconductor device comprising:
- an antenna,
- an integrated circuit comprising a thin film transistor,
- a light-emitting element, and
- a light-receiving element,
- wherein the antenna, the light-emitting element and the light-receiving element are electrically connected to the integrated circuit, and
- wherein the integrated circuit, the light-emitting element and the light-receiving element are formed over a first substrate and then separated therefrom, and attached to a second substrate.
3 more elements
A semiconductor device comprising:
- an antenna,
- an integrated circuit comprising a thin film transistor,
- a light-emitting element, and
- a light-receiving element,
- wherein the antenna, the light-emitting element and the light-receiving element are electrically connected to the integrated circuit, and
- wherein the antenna, the integrated circuit, the light-emitting element and the light-receiving element are formed over a first substrate and then separated therefrom, and attached to a second substrate.
3 more elements
A semiconductor device comprising:
- an integrated circuit,
- a light-emitting element, and
- a light-receiving element,
- wherein the integrated circuit comprises a connection terminal, a rectification circuit that generates power supply voltage from an alternating current signal that is input to the connection terminal by an antenna, a demodulation circuit for demodulating a first signal received in the light-receiving element, and a logic circuit that conducts arithmetic operation according to the first signal that is demodulated to generate a second signal,
- wherein the light-emitting element can convert the second signal to an optical signal,
- wherein the integrated circuit, the light-emitting element and the light-receiving element are formed integrally, and
- wherein the integrated circuit, the light-emitting element and the light-receiving element are formed over a first substrate and then separated therefrom, and attached to a second substrate.
4 more elements
An IC card comprising:
- an antenna,
- an integrated circuit comprising a thin film transistor,
- a light-emitting element, and
- a light-receiving element,
- wherein the antenna, the light-emitting element and the light-receiving element are electrically connected to the integrated circuit, and
- wherein the integrated circuit, the light-emitting element and the light-receiving element are formed integrally.
3 more elements
An IC card comprising:
- an integrated circuit,
- a light-emitting element, and
- a light-receiving element,
- wherein the integrated circuit comprises a connection terminal, a rectification circuit that generates power supply voltage from an alternating current signal that is input to the connection terminal by an antenna, a demodulation circuit for demodulating a first signal received in the light-receiving element, and a logic circuit that conducts arithmetic operation according to the first signal that is demodulated to generate a second signal,
- wherein the light-emitting element can convert the second signal to an optical signal, and
- wherein the integrated circuit, the light-emitting element and the light-receiving element are formed integrally.
3 more elements
An IC card comprising:
- an antenna,
- an integrated circuit comprising a thin film transistor,
- a light-emitting element, and
- a light-receiving element,
- wherein the antenna, the light-emitting element and the light-receiving element are electrically connected to the integrated circuit, and
- wherein the integrated circuit, the light-emitting element and the light-receiving element are formed over a first substrate and then separated therefrom, and attached to a second substrate.
3 more elements
Dependencies are inferred from the claim text.