Wireless sensor device

摘要

A wireless sensor device capable of constant operation without replacement of batteries. The wireless sensor device is equipped with a rechargeable battery and the battery is recharged wirelessly. Radio waves received at an antenna circuit are converted into electrical energy and stored in the battery. A sensor circuit operates with the electrical energy stored in the battery, and acquires information. Then, a signal containing the information acquired is converted into radio waves at the antenna circuit, whereby the information can be read out wirelessly.

主权项

1. A sensor device comprising:
a substrate comprising an antistatic film; a circuit comprising a plurality of semiconductor elements over the substrate; an antenna electrically connected to the circuit over the substrate; a sensor provided over the substrate and electrically connected to the circuit; and a flexible secondary battery over the substrate and electrically connected to the circuit and the antenna, wherein the sensor device is configured to be implanted in a living body.