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
- VELION focused ion beam scanning electron microscope expands MIT.nano capabilitieson June 16, 2021 at 4:05 am
MIT.nano has acquired a Raith VELION focused ion beam scanning electron microscope (FIB-SEM) as a demonstration unit in its characterization facility. The instrument, which arrived on campus last ...
- VELION focused ion beam scanning electron microscope expands MIT.nano capabilitieson June 14, 2021 at 7:26 am
FIB-SEM is now available to researchers across the Institute for use in characterization, nanofabrication, and rapid prototyping. MIT.nano has acquired a Raith VELION focused ion beam scanning ...
- Nanophotonics and nanofabrication combine to achieve 3D color printson June 2, 2021 at 3:55 am
(Nanowerk Spotlight) A new generation of lenses ('metalenses') is starting to replace bulky curved lenses with simple, flat surfaces that use nanostructures to focus light. These flat surfaces ...
- Nanofabrication of Three-Dimensional Graphene with Controlled Shapeon May 30, 2021 at 5:00 pm
Graphene is a very promising material for many applications. The current mass production of graphene is focused on two-dimensional graphene sheets. However, the attractive forces between graphene ...
- Creating and Commercializing a Human ‘Body Cube’ for Testing New Drugson May 28, 2021 at 6:55 am
Growing up, I always had a love for living things, so I went off to college and got an undergraduate degree in biology.
- Nanofabrication tool brings zero-carbon energy from sea water a step closeron May 27, 2021 at 6:24 am
(Nanowerk News) Researchers at McGill University have demonstrated a technique that could enable the production of robust, high-performance membranes to harness an abundant source of renewable energy.
- Nanofabrication Market Size 2021 to 2026 Segmentation at Region Level Including Market Revenue, Share and Price Analysison May 4, 2021 at 4:22 am
May 04, 2021 (The Expresswire) -- "Final Report will add the analysis of the impact of COVID-19 on this industry" Global “Nanofabrication Market” has numerous changes in recent years and ...
- Micro and Nanofabrication Cleanroomon March 13, 2021 at 4:07 am
The Micro and Nanofabrication Cleanroom provides a shared research facility open to all Colleges and Departments on the Baylor campus. Located at the Baylor Research and Innovation Collaborative, the ...
- Nanofabrication Labon August 17, 2020 at 9:11 pm
The Nanofabrication Lab features a state-of-the-art, 4,200 ft2 Class 100 clean room equipped with over 40 pieces of process and analytical instrumentation for complex research projects that require ...
- Clean Room & Nanofabrication Facilityon August 9, 2020 at 2:37 pm
Open to both Boston College and External Users, this laboratory is home to over 30 high-end micro and nanoscale instrumentation systems worth several million dollars. Comprised of 1,500 square feet of ...
via Bing News