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A 200 μm by 100 μm Smart Dust system with an average current consumption of 1.3 nA

: Funke, D.A.; Mayr, P.; Straczek, L.; McCaskill, J.S.; Oehm, J.; Pohl, N.


Vladimirescu, A. ; Institute of Electrical and Electronics Engineers -IEEE-; IEEE Circuits and Systems Society:
IEEE International Conference on Electronics, Circuits and Systems, ICECS 2016 : 11-14 Dec. 2016, Monte Carlo
Piscataway, NJ: IEEE, 2016
ISBN: 978-1-5090-6113-6
ISBN: 978-1-5090-6112-9
ISBN: 978-1-5090-6114-3 (Print)
International Conference on Electronics Circuits and Systems (ICECS) <23, 2016, Monte Carlo>
Fraunhofer FHR ()

In this paper we present a microscale “Smart Dust” type system with a volume of 200 μm × 100 μm × 10 μm, called lablet. The lablet contains a 20 Hz low power clock generator, a sensor, electric actuators and a simple finite state machine to implement a predefined response to the sensor input. The system operates with supply voltages ranging from 0.3 V to 1.8 V and is thus suitable to be supplied from a capacitor with decreasing voltage. An input rectifier allows powering the lablet independent of polarity. The average current consumption of the system was measured to be 1.3 nA when supplied from a capacitor with an initial voltage of 1.8 V. The system is intended to be used within electrolyte solutions. The small system scale allows the investigation of “pourable electronics”, a concept where large quantities of microsystems are deployed within a chemical solution to perform a predefined task. Several lablets have been designed and fabricated in a standard 180 nm CMOS process and the electrical functionality has been verified by contacting the lablet electrodes with multiple probe needles.