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Design, Automation and Test in Europe, DATE 2011, Grenoble, France, March 14-18, 2011; 01/2011
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Gregory K. Chen,
Hassan Ghaed,
Razi-Ul Haque,
Michael Wieckowski,
Yejoong Kim,
Gyouho Kim,
David Fick,
Daeyeon Kim,
Mingoo Seok,
Kensall Wise,
David Blaauw, Dennis Sylvester
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ABSTRACT: Glaucoma is the leading cause of blindness, affecting 67 million people worldwide. The disease damages the optic nerve due to elevated intraocular pressure (IOP) and can cause complete vision loss if untreated. IOP is commonly assessed using a single tonometric measurement, which provides a limited view since IOP fluctuates with circadian rhythms and physical activity. Continuous measurement can be achieved with an implanted monitor to improve treatment regiments, assess patient compliance to medication schedules, and prevent unnecessary vision loss. The most suitable implantation location is the anterior chamber of the eye, which is surgically accessible and out of the field of vision. The desired IOP monitor (IOPM) volume is limited to 1.5mm<sup>3</sup> (0.5x1.5x2mm<sup>3</sup>) by the size of a self-healing incision, curvature of the cornea, and dilation of the pupil.
IEEE International Solid-State Circuits Conference, ISSCC 2011, Digest of Technical Papers, San Francisco, CA, USA, 20-24 February, 2011; 01/2011
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Proceedings of the 47th Design Automation Conference, DAC 2010, Anaheim, California, USA, July 13-18, 2010; 01/2010
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IEEE International Solid-State Circuits Conference, ISSCC 2010, Digest of Technical Papers, San Francisco, CA, USA, 7-11 February, 2010; 01/2010
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11th International Symposium on Quality of Electronic Design (ISQED 2010), 22-24 March 2010, San Jose, CA, USA; 01/2010
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Design, Automation and Test in Europe, DATE 2010, Dresden, Germany, March 8-12, 2010; 01/2010
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IEEE Trans. VLSI Syst. 01/2010; 18:166-170.
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ABSTRACT: An 8.75 mm<sup>3</sup> sensor system is implemented with a near-threshold ARM Cortex-M3 core, custom 3.3 fW leakage-per-bit SRAM, two 1 mm<sup>2</sup> solar cells, a thin-film Li-ion battery, and an integrated power management unit. The 2.1 ¿W system enters a 100 pW data-retentive sleep state between sensor measurements and harvests energy from the solar cells to enable nearly perpetual operation.
IEEE International Solid-State Circuits Conference, ISSCC 2010, Digest of Technical Papers, San Francisco, CA, USA, 7-11 February, 2010; 01/2010
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Proceedings of the 46th Design Automation Conference, DAC 2009, San Francisco, CA, USA, July 26-31, 2009; 01/2009
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Design, Automation and Test in Europe, DATE 2009, Nice, France, April 20-24, 2009; 01/2009
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Proceedings of the 2009 International Symposium on Low Power Electronics and Design, 2009, San Fancisco, CA, USA, August 19-21, 2009; 01/2009
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Integration. 01/2008; 41:319-339.
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41st Annual IEEE/ACM International Symposium on Microarchitecture (MICRO-41 2008), November 8-12, 2008, Lake Como, Italy; 01/2008
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IEEE Trans. VLSI Syst. 01/2007; 15:1215-1224.
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IEEE Trans. VLSI Syst. 01/2007; 15:613-623.
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Conference Proceeding:
A dual-V
Proceedings of the 2006 International Symposium on Low Power Electronics and Design, 2006, Tegernsee, Bavaria, Germany, October 4-6, 2006; 01/2006
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7th International Symposium on Quality of Electronic Design (ISQED 2006), 27-29 March 2006, San Jose, CA, USA; 01/2006
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International Symposium on Circuits and Systems (ISCAS 2006), 21-24 May 2006, Island of Kos, Greece; 01/2006
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6th International Symposium on Quality of Electronic Design (ISQED 2005), 21-23 March 2005, San Jose, CA, USA; 01/2005
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6th International Symposium on Quality of Electronic Design (ISQED 2005), 21-23 March 2005, San Jose, CA, USA; 01/2005