The Michigan Engineer News Center

Yoonmyung Lee receives 2011 Intel Corporation PhD Fellowship

Lee is currently working closely with his colleagues to build an ultra-low power wireless sensor platform.| Short Read
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Yoonmyung Lee, PhD student in electrical engineering, was selected to receive a 2011 Intel Corporation PhD Fellowship to pursue his research in circuit design challenges for new technologies. This is a highly competitive fellowship within Intel, and recipients must be nominated by their departments.

Yoonmyung’s research interests include various design challenges in circuits for future mm-scale ultra-low power wireless sensor systems. He has worked on standby power managing and low power memory design for ultra-low power systems. He is currently working closely with his colleagues to build an ultra-low power wireless sensor platform with multi-processor, solar energy harvesting, temperature and image sensors, and wireless communication — everything in 1.0mm3 volume.

Mr. Lee recently published the paper, “A 660pW Multi-Stage Temperature-Compensated Timer for Ultra-Low-Power Wireless Sensor Node Synchronization,” in the Proceedings of the 2011 IEEE International Solid-State Circuits Conference (ISSCC), the premier conference for circuit design. He conducts his research under the direction of Prof. David Blaauw.

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The electrons absorb laser light and set up “momentum combs” (the hills) spanning the energy valleys within the material (the red line). When the electrons have an energy allowed by the quantum mechanical structure of the material—and also touch the edge of the valley—they emit light. This is why some teeth of the combs are bright and some are dark. By measuring the emitted light and precisely locating its source, the research mapped out the energy valleys in a 2D crystal of tungsten diselenide. Credit: Markus Borsch, Quantum Science Theory Lab, University of Michigan.

Mapping quantum structures with light to unlock their capabilities

Rather than installing new “2D” semiconductors in devices to see what they can do, this new method puts them through their paces with lasers and light detectors. | Medium Read