This scanning electron micrograph depicts a silicon crystal nanomachined into an antenna oscillator that can vibrate about 1.5 billion times per second.
The antenna-type oscillator is a nanomachined single-crystal structure of silicon. Using this design, movements 1000 times smaller than nanometer scale are amplified into motion of the entire micron-sized structure. Operating at gigahertz speeds, the technology could help further miniaturize wireless communication devices like cell phones. This macroscopic nanomechanical oscillator consists of roughly 50 billion silicon atoms.
Raj Mohanty, Boston University
The central silicon beam is 10.7 µm long and 400 nm wide; the "paddles" along the sides are 500 nm long and 200 nm wide.
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