Starts at: April 17, 2014 4:30 PM
Ends at: 5:30 PM
Location: Scaife Hall, Room 125
Speaker: Jack Judy
Affiliation: Director of the Nanoscience Instutute for Medical & Engineering Technology, University of Florida
Refreshments provided: Yes
Although it is widely understood that advancing micro-/nano-manufacturing technologies have enabled the miniaturization and cost reduction of electronics by many orders of magnitude (i.e., Moore’s “Law”), what is not as widely appreciated is how uneven and incomplete this miniaturization revolution has been. From a circuit perspective, Moore’s Law reflects the improvements achieved in transistor, diode, capacitor, and resistor technology by several orders of magnitude over the past 40+ years. Inductor technology, by contrast, has only advanced perhaps one order of magnitude over the same time period. As a result, the vast majority of electronic circuits are designed without any inductors and inductor-based systems are often relatively enormous and/or power inefficient. For related micro-/nano-manufacturing-limitation reasons, the design and scaling of RF systems has also been hampered by the relative inability to scale/improve the inductive (i.e., magnetic) elements significantly. However, perhaps the most striking failing of existing micro-/nano-manufacturing advances has been in the miniaturization of high-power-density motors and other power-conversion systems. The miniaturization of motors at the power-density scaling limit ends with conventional macro machining processes at a volume of ~20 mm^3 (i.e., cell phone buzzer motor). Employing micro-/nano-manufacturing processes to shrink below this volume results in a performance reduction of several orders of magnitude below power-density limit. Until this problem is solved, it will continue to be extremely difficult to realize highly articulated miniature robotic systems with integrated power-conversion systems — a potentially highly disruptive technology platform. Fortunately, there exist opportunities to improve the micro-/nano-manufacturing processes for ferromagnetic and ferroelectric (i.e., ferroic) devices. The scale and scope of the challenge, potential application areas for impact, as well as some approaches for meeting the challenge will be discussed.
Dr. Jack Judy joined the faculty of the University of Florida in 2013, where he serves as the Director of the Nanoscience Institute for Medical and Engineering Technology (NIMET) and holds the Intel Nanotechnology Endowed Chair. Dr. Judy was formerly a program manager in the Microsystems Technology Office (MTO) of the Defense Advanced Research Projects Agency (DARPA). While at DARPA he managed the Reliable Neural-Interface Technology Program (RE-NET), which he created to address the fundamental, and yet at the time largely overlooked, reliability problem of chronic neural-recording interfaces. Without successfully developing and translating high-performance neural-recording interfaces that function for the life of the patient, many of the widely envisioned clinical applications for brain-machine interfaces will not be realized. Dr. Judy served at DARPA while on leave from his faculty position in the Electrical and Biomedical Engineering Departments at UCLA, where he also served as Director of the NeuroEngineering Program, the Nanoelectronics Research Facility, and the Instructional Microfabrication Laboratory. Dr. Judy and his laboratory have a long history of developing novel micro-/nano-systems, including ferromagnetic microactuators and microsensors. He has received the National Science Foundation Career Award and the Okawa Foundation Award. He received his B.S.E.E. with summa cum laude honors from the University of Minnesota in 1989, and his M.S. and Ph.D. from the University of California, Berkeley, in 1994 and 1996, respectively.