Two types of micro-mechanical memory cells are introduced in this paper. The programmable parameters are the resonant frequency of a micro-mechanical bridge and the tip deflection of a micro-mechanical cantilever. For both cases, the actuation was done by laser pulses that locally heated the vanadium dioxide (VO2) thin film coating. Due to the hysteretic behavior of the mechanical properties of the VO2 film coating across the transition, a different “memory state” was programmed with every pulse. The memory state remained programmed after the pulse ended, as long as the sample was maintained at a specific temperature (programming temperature) by using a Peltier heater. The resetting of the mechanical memory cell was accomplished by driving the temperature to regions outside the hysteretic region.
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ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
September 18–21, 2011
Scottsdale, Arizona, USA
Conference Sponsors:
- Aerospace Division
ISBN:
978-0-7918-5471-6
PROCEEDINGS PAPER
Multifunctional Micro-Mechanical Memory Devices
Emmanuelle Merced
,
Emmanuelle Merced
Michigan State University, East Lansing, MI
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Rafmag Cabrera
,
Rafmag Cabrera
Michigan State University, East Lansing, MI
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Noraica Da´vila
,
Noraica Da´vila
Michigan State University, East Lansing, MI
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Nelson Sepu´lveda
,
Nelson Sepu´lveda
Michigan State University, East Lansing, MI
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Fe´lix E. Ferna´ndez
Fe´lix E. Ferna´ndez
University of Puerto Rico at Mayagu¨ez, Mayagu¨ez, Puerto Rico
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Emmanuelle Merced
Michigan State University, East Lansing, MI
Rafmag Cabrera
Michigan State University, East Lansing, MI
Noraica Da´vila
Michigan State University, East Lansing, MI
Nelson Sepu´lveda
Michigan State University, East Lansing, MI
Fe´lix E. Ferna´ndez
University of Puerto Rico at Mayagu¨ez, Mayagu¨ez, Puerto Rico
Paper No:
SMASIS2011-4965, pp. 49-51; 3 pages
Published Online:
February 7, 2012
Citation
Merced, E, Cabrera, R, Da´vila, N, Sepu´lveda, N, & Ferna´ndez, FE. "Multifunctional Micro-Mechanical Memory Devices." Proceedings of the ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 1. Scottsdale, Arizona, USA. September 18–21, 2011. pp. 49-51. ASME. https://doi.org/10.1115/SMASIS2011-4965
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