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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Po-Hung Kuo Jian-Yu Hsieh Yi-Chun Huang Yu-Jie Huang Rong-Da Tsai Tao Wang Hung-Wei Chiu Shey-Shi Lu |
| Copyright Year | 2014 |
| Description | Author affiliation: Chang Gung Univ., Taoyuan, Taiwan (Tao Wang) || Nat. Taipei Univ. of Technol., Taipei, Taiwan (Rong-Da Tsai; Hung-Wei Chiu) || Nat. Taiwan Univ., Taipei, Taiwan (Po-Hung Kuo; Jian-Yu Hsieh; Yi-Chun Huang; Yu-Jie Huang; Shey-Shi Lu) |
| 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 $21.2mm^{2}$ and the power consumption of the integrated circuits and the electrolysis electrodes are 125.4μW and 82μW, respectively. |
| Starting Page | 322 |
| Ending Page | 323 |
| File Size | 6497707 |
| Page Count | 2 |
| File Format | |
| ISBN | 9781479909186 |
| ISSN | 01936530 |
| e-ISBN | 9781479909209 |
| DOI | 10.1109/ISSCC.2014.6757453 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-02-09 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Electrodes Electrochemical processes Amplitude shift keying Integrated circuits Voltage control Biomedical measurement Wireless communication |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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