Paper Info
Title
18.7 A remotely controlled locomotive IC driven by electrolytic bubbles and wireless powering
Abstract
As implantable medical CMOS devices become a reality [1], motion control of such implantable devices has become the next challenge in the advanced integrated micro-system domain. With integrated sensors and a controllable propulsion mechanism, a micro-system will be able to perform tumor scan, drug delivery, neuron stimulation, bio-test, etc, in a revolutionary way and with minimum injury. Such devices are especially suitable for human hollow organs, such as urinary bladder and stomach. Motivated by the art reported in ISSCC 2012 [2], we demonstrate a remotely-controlled locomotive CMOS IC which is realized in TSMC 0.35μm technology. As illustrated in Fig. 18.7.1, a bare CMOS chip flipped on a liquid surface can be moved to the desired position without any wire connections. Instead of Lorentz forces [2], this chip utilizes the gas pressure resulting from electrolytic bubbles as the propulsive force. By appointing voltages to the on-chip electrolysis electrodes, one can decide the electrolysis location and thereby control the bubbles emissions as well as the direction of motion. With power management circuits, wireless receiver and micro-control unit (MCU), the received signal can be exploited as the movement control as well as wireless power. Experiments show a moving speed of 0.3mm/s of this chip. The total size is 21.2mm2 and the power consumption of the integrated circuits and the electrolysis electrodes are 125.4μW and 82μW, respectively.
Year
DOI
Venue
2014
10.1109/ISSCC.2014.6757453
Solid-State Circuits Conference Digest of Technical Papers
Keywords
DocType
ISSN
cmos integrated circuits,biomedical electrodes,bubbles,drug delivery systems,electrochemical electrodes,electrochemical sensors,electrolysis,injuries,microsensors,neurophysiology,power consumption,power supply circuits,prosthetics,radio receivers,radiofrequency power transmission,tumours,cmos chip,lorentz forces,mcu,tsmc,biotest,drug delivery system,electrolysis electrodes,electrolytic bubbles,gas pressure,human hollow organs,implantable medical cmos devices,injury,integrated circuits,integrated microsystem domain,integrated sensors,microcontrol unit,motion control,neuron stimulation,on-chip electrolysis electrodes,power management circuits,remotely-controlled locomotive cmos ic,stomach,tumor scan,urinary bladder,wireless power,wireless receiver
Conference
0193-6530
Citations 
PageRank 
References 
1
0.41
9
Authors
7
Name
Order
Citations
PageRank
Po-Hung Kuo1284.92
Jian-Yu Hsieh2214.80
Yi-Chun Huang351.60
rongda tsai410.41
tao wang5496.34
Hung-Wei Chiu6194.13
Shey-Shi Lu713328.72