Category Technology/Electronics

Protons Fix a Long-Standing Issue in Silicon Carbide Electronics

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Proton implantation prevents the expansion of stacking faults and solves the problem of bipolar degradation.
Electroluminescence images of PiN diodes made from silicon carbide after being subjected to electrical stress. In the first diode (a), on which proton implantation was not applied, expanded stacking faults show up as dark regions. The other three diodes (b, c, and d) undergo proton implantation at increasing hydrogen ion doses. Contrary to the first diode, these exhibit no stacking fault expansion and, in turn, bipolar degradation.
Image credit: Masashi Kato from Nagoya Institute of Technology

Silicon carbide (SiC) is a promising semiconductor material for power electronic devices, but it suffers from bipolar degradation, which severely limits its lifespan...

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New Programming Tool Turns Sketches, Handwriting into Code

Programming tool turns handwriting into computer code
Programming tool turns handwriting into computer code / Cornell University

Cornell University researchers have created an interface that allows users to handwrite and sketch within computer code — a challenge to conventional coding, which typically relies on typing.

The pen-based interface, called Notate, lets users of computational, digital notebooks open drawing canvases and handwrite diagrams within lines of traditional, digitized computer code.

Powered by a deep learning model, the interface bridges handwritten and textual programming contexts: notation in the handwritten diagram can reference textual code and vice versa. For instance, Notate recognizes handwritten programming symbols, like “n,” and then links them up to their typewritten equivalents.

“A system like this w...

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Researchers Eye Embroidery as Low-cost solution for making Wearable Electronics

Embroidery machine
Yu Chen, graduate student at NC State, demonstrates embroidery techniques.

Embroidering power-generating yarns onto fabric allowed researchers to embed a self-powered, numerical touch-pad and movement sensors into clothing. The technique offers a low-cost, scalable potential method for making wearable devices.

“Our technique uses embroidery, which is pretty simple — you can stitch our yarns directly on the fabric,” said the study’s lead author Rong Yin, assistant professor of textile engineering, chemistry and science at North Carolina State University. “During fabric production, you don’t need to consider anything about the wearable devices. You can integrate the power-generating yarns after the clothing item has been made.”

In the study published in Nano Energy, researchers tes...

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A Possible Game Changer for Next Generation Microelectronics

Multicolor patterns of arrows in pointing across, down. (Image by Argonne National Laboratory.)
Magnetic fields created by skyrmions in two-dimensional sheet of material composed of iron, germanium and tellurium. (Image by Argonne National Laboratory.)

Researchers have discovered new properties of tiny magnetic whirlpools called skyrmions. Their pivotal discovery could lead to a new generation of microelectronics for memory storage with vastly improved energy efficiency in high performance computers.

Magnets generate invisible fields that attract certain materials. A common example is fridge magnets. Far more important to our everyday lives, magnets also can store data in computers. Exploiting the direction of the magnetic field (say, up or down), microscopic bar magnets each can store one bit of memory as a zero or a one — the language of computers.

Scientists at the U.S...

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