What does it take to fabricate electronic and medical devices tinier than a fraction of a human hair?
Nanoengineers at the University of California, San Diego recently invented a new method of lithography in which nanoscale robots swim over the surface of light-sensitive material to create complex surface patterns that form the sensors and electronics components on nanoscale devices. Their research, published recently in the journal Nature Communications,offers a simpler and more affordable alternative to the high cost and complexity of current state-of-the-art nanofabrication methods such as electron beam writing.
Led by distinguished nanoengineering professor and chair Joseph Wang, the team developed nanorobots, or nanomotors, that are chemically-powered, self-propelled and magnetically controlled. Their proof-of-concept study demonstrates the first nanorobot swimmers able to manipulate light for nanoscale surface patterning. The new strategy combines controlled movement with unique light-focusing or light-blocking abilities of nanoscale robots.
“All we need is these self-propelled nanorobots and UV light,” said Jinxing Li, a doctoral student at the Jacobs School of Engineering and first author. “They work together like minions, moving and writing and are easily controlled by a simple magnet.”
State-of-art lithography methods such as electron beam writing are used to define extremely precise surface patterns on substrates used in the manufacture of microelectronics and medical devices. These patterns form the functioning sensors and electronic components such as transistors and switches packed on today’s integrated circuits. In the mid-20thcentury the discovery that electronic circuits could be patterned on a small silicon chip, instead of assembling independent components into a much larger “discrete circuit,” revolutionized the electronics industry and set in motion device miniaturization on a scale previously unthinkable.
Today, as scientists invent devices and machines on the nanoscale, there is new interest in developing unconventional nanoscale manufacturing technologies for mass production.
Li was careful to point out that this nanomotor lithography method cannot completely replace the state-of-the-art resolution offered by an e-beam writer, for example. However, the technology provides a framework for autonomous writing of nanopatterns at a fraction of the cost and difficulty of these more complex systems, which is useful for mass production. Wang’s team also demonstrated that several nanorobots can work together to create parallel surface patterns, a task that e-beam writers cannot perform.
The Latest on: Nanofabrication
via Google News
The Latest on: Nanofabrication
- Sensor Based on Black Silicon Detects Toxic Contaminants and Explosiveson November 28, 2019 at 9:28 am
Researchers from Far Eastern Federal University (FEFU), Far Eastern Branch of the Russian Academy of Sciences, Swinburne University of Technology, and Melbourne Center for Nanofabrication have ...
- Black silicon can help detect explosiveson November 27, 2019 at 9:15 am
Scientists from Far Eastern Federal University (FEFU), Far Eastern Branch of the Russian Academy of Sciences, Swinburne University of Technology, and Melbourne Center for Nanofabrication developed an ...
- Small firms are a part of the big picture in innovationon November 26, 2019 at 5:08 am
Supplied Mr Rowland attributes much of the company’s success to a “great relationship with Flinders University here in South Australia where we’ve worked with Biomedical Engineering students”, the ...
- Implosion Manufacturing: Novel Nanotech Methods for Next Generation Materialson November 25, 2019 at 8:46 am
The report will evaluate the various technologies that are being developed or adapted from existing nanofabrication technologies, including - Read the full report: ...
- CoMotion Makerspace to be replaced by startup incubator, students express frustrationon November 21, 2019 at 12:19 am
The startup space, a partnership with the College of Engineering and the Washington Nanofabrication Facility, will “be a space for UW spinoffs and startups with a focus on hardware and heavy ...
- Focused Ion Beam Market - Global Forecast to 2024 by Ion Source, Application, Vertical, and Regionon November 11, 2019 at 12:45 pm
DUBLIN, Nov. 11, 2019 /PRNewswire/ -- The "Focused Ion Beam Market by Ion Source (Ga+ Liquid Metal, Plasma), Application (Failure Analysis, Nanofabrication), Vertical (Electronics & Semiconductor, ...
- Colorado Shared Instrumentation in Nanofabrication and Characterization (COSINC)on October 23, 2019 at 1:50 am
He received a Ph.D. degree in Optoelectronics, Electronic engineering, with a focus on Nanofabrication, from the University of Glasgow, followed by a postdoctoral fellowship at McGill University. His ...
- Vathys (YC W18) Is Hiring a Packaging Engineer/Nanofabrication Engineeron October 1, 2019 at 10:11 pm
Location is ideally in the Bay Area, but remote is also possible if there is a nanofabrication facility (e.g. an university lab) nearby. Generous compensation will be provided to the right talent.
- Nanofabrication tools promise new laser manufacturing methodson September 30, 2019 at 5:00 pm
The recent advances in nanofabrication provide many new opportunities to develop new devices that are cheaper and better than conventional alternatives. Quantum dot lasers, NanoOpto’s polarizers, ...
- Ice lithography: opportunities and challenges in 3D nanofabricationon June 21, 2019 at 7:09 am
Nanotechnology and nanoscience are enabled by nanofabrication. Electron-beam lithography (EBL), which makes patterns down to a few nanometers, is one of the fundamental pillars of nanofabrication. In ...
via Bing News