期刊
APPLIED PHYSICS LETTERS
卷 105, 期 26, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4904953
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资金
- Systems on Nanoscale Information fabriCs (SONIC), one of the six SRC STARnet Centers - MARCO
- DARPA
We report a mechanically enhanced inkjet-printed microelectromechanical (MEM) relay with a U-bar-shaped cantilever by exploiting the coffee-ring effect. The printed cantilever shape, especially the effective thickness caused by the elevated walls, can be controlled during the drying process by outward convective flow of silver nanoparticles. This enhances mechanical stiffness to efficiently produce a strongly suspended cantilever that is immune to collapse-and curling-related failures. This approach to enhancing cantilever stiffness is unique to printing-based processes using metal-nanoparticle inks and is not feasible for conventional photolithography processes. The resulting printed MEM relays show a pull-in voltage of only 6.6 V and an on/off ratio of 10(8) with extremely low on-state resistance (similar to 14.3 Omega) and off-state leakage that is comparable to those of conventional silicon-based MEM relays. (C) 2014 AIP Publishing LLC.
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