Invention Grant
- Patent Title: Semiconductor device and power receiving device
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Application No.: US15362175Application Date: 2016-11-28
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Publication No.: US10256669B2Publication Date: 2019-04-09
- Inventor: Takeshi Osada , Hikaru Tamura
- Applicant: Semiconductor Energy Laboratory Co., Ltd.
- Applicant Address: JP Kanagawa-ken
- Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee Address: JP Kanagawa-ken
- Agency: Robinson Intellectual Property Law Office
- Agent Eric J. Robinson
- Priority: JP2006-237047 20060831
- Main IPC: H01L27/12
- IPC: H01L27/12 ; H02J50/12 ; G06K19/07 ; G06K19/077 ; B60L11/18 ; H04B5/00 ; B60L1/00 ; H02J50/80 ; H02J50/20

Abstract:
An object is to provide a semiconductor device that is capable of wireless communication, such as an RFID tag, which can transmit and receive individual information without checking remaining capacity of a battery or changing batteries due to deterioration with time in the battery for a drive power supply voltage, and maintain a favorable a transmission/reception state even when electric power of an electromagnetic wave from a reader/writer is not sufficient. The semiconductor device includes a signal processing circuit, a first antenna circuit connected to the signal processing circuit, an antenna circuit group, a rectifier circuit-group and a battery connected to the signal processing circuit. The first antenna circuit transmits and receives a signal for transmitting data stored in the signal processing circuit and drives a power supply circuit, and each antenna circuit of the antenna circuit group receives a signal for charging the battery and includes an antenna which has a different corresponding frequency.
Public/Granted literature
- US20170077763A1 SEMICONDUCTOR DEVICE AND POWER RECEIVING DEVICE Public/Granted day:2017-03-16
Information query
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