Big Small Development
While you may not have to solder nanowires to nanoelectrodes—yet—know that there has been a development that goes beyond the process that has heretofore been the methods which were pretty much performed one at a time, which is rather tedious for creating electronic sensor arrays.The new process: electroplating.
While you may not have to solder nanowires to nanoelectrodes—yet—know that there has been a development that goes beyond the process that has heretofore been the methods which were pretty much performed one at a time, which is rather tedious for creating electronic sensor arrays.
The new process: electroplating. Yes, the process that’s been used in industry since the mid-1800’s.
The nano development was a result of work performed by the Center for Integrated Technologies (CINT) at the Sandia National Laboratories (www.sandia.gov) and Arizona State University (www.asu.edu).
The new process uses a lithographic process to form microarrays of composite gold electrodes on oxidized silicon substrates. Then, there is electric-field-assisted alignment of silicon nanowires between the electrodes. The nanowire ends are embedded in nickel by selective electrodeposition over prepatterned electrodes. Finally, there is annealing to 300°C.
“All of the electroplating is done in parallel. Everywhere there’s a metal contact, the electroplated nickel grows over the nanowire, capturing it,” explained Sean Hearne, a Sandia researcher at CINT.
And you just thought electroplating was for parts, well, larger than a billionth of a meter in size.
This is not a piece of modern art: Rather, it is an image from Blackmore Sensors and Analytics of Bozeman, Montana, micro-Doppler signatures of pedestrians (or maybe that’s a pedestrian, singular) walking (see it now?). Blackmore is a company that is developing FMCW lidar.
Kia Motors America COO and executive vice president says this crossover is “crafted for the urban pioneer.” And it is designed and engineered for competing in one of the hottest segments in the overall auto market.
The mid-size 2005 Pathfinder, Nissan's largest design and development program to date, involved three technical centers, and took 36 months and countless trans-Pacific trips to complete. Though it borrows major components from the full-size Titan pickup and Armada SUV, it's not just a downsized clone.