Next Month’s Focus PCB and Automation Send News Releases For SMTAI Product Preview VOLUME 32 - NUMBER 8

Product Preview: NEPCON S.China


Newest Class of Supercarrier Is All-Electric

By Walter Salm, Editor Emeritus

Newport News, VA — The U.S. Navy’s supercarriers are getting even more super. Having just com- pleted sea trials, the first member of

Yamaha's new Sigma Series G5S modular mounter delivers high-speed, flexible placement using two heads and overdrive control. Product Preview be- gins on…

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American Tec Automates

Through-Hole Insertion

American Tec launches an au- tomated, modular through- hole insertion platform; ASM takes E by SIPLACE on the road in Southern California. Section begins on…

Page 20 This Month's Focus:

Production & Packaging

The empty flight deck of the USS Gerald R. Ford as the ship undergoes sea trials. (U.S. Navy Combat Camera photo by Mass Communication Specialist 2nd Class Ridge Leoni/Released)

“Spintronics” May Enable Future Hybrid Electronics

Techcon refines progressive cavity dispensing tech; Koh - Young delivers its 10,000th inspection system; FEIG bench marks RFID readers, comparing speed and inter- ference performance. Special Features begin on…

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Linköping, Sweden — A discovery of how to control and transfer spinning electrons paves the way for novel hy- brid devices that could outperform ex- isting semiconductor electronics. In a study published in Nature Communi- cations, researchers at Link öping University in Sweden demonstrate how to combine a common semicon- ductor with a topological insulator, a recently discovered state of matter with unique electrical properties. Just as the Earth spins around

its own axis, so does an electron, in a clockwise or counter-clockwise direc- tion. “Spintronics” is the name used to describe technologies that exploit both the spin and the charge of the electron. Current applications are limited, and the technology is mainly used in computer hard drives. Spin- tronics promises great advantages over conventional electronics, includ- ing lower power consumption and higher speed. In terms of electrical conductiv-

ity, natural materials are classified into three categories: conductors, semiconductors and insulators. Re- searchers have recently discovered an exotic phase of matter known as a “topological insulators,” which is an insulator inside, but a conductor on the surface. One of the most striking properties of topological insulators is that an electron must travel in a spe- cific direction along the surface of

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a totally new class of carrier, the USS Gerald R. Ford (CVN-78) has been designed to operate more effi- ciently and with a smaller crew than the 10 Nimitz-class carriers that cur-

rently form the bulwark of U.S. sea power. The new ship has a larger flight deck and is loaded with innova- tive technology that is expected to see it comfortably through its planned operating life of 50 years. It replaces the now-decommissioned USS Enterprise, the first nuclear- powered carrier (CVN-65), which ended 55 years of military service in February of this year. For years, Nimitz-class carriers

have been the heart of the U.S. Navy’s power in the world’s oceans. Since the first Nimitz joined naval service in 1975, some shortcomings

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Stretchable, Compressible Supercapacitors

Hong Kong — Flexible, wearable electronics require equally flexible, wearable power sources. In the jour- nal Angewandte Chemie, Chinese sci- entists have introduced an extraordi- narily stretchable and compressible polyelectrolyte which, in combination with carbon nanotube composite pa- per electrodes, forms a supercapaci- tor that can be stretched to 1,000 percent in length and compressed to 50 percent in thickness with even gaining, not losing capacity. Supercapacitors bridge the gap

between batteries, which are merely energy-storing devices, and normal capacitors, which release and take up electric energy very quickly but cannot store so much energy. With their ability to charge and release large amounts of electric power in a very short time, supercapacitors are preferred for regenerative braking, as power buffers in wind turbines, and, increasingly, in consumer elec- tronics. To make supercapacitors fit for

future electric demands like, for ex- ample, wearables and paper elec- tronics, Chunyi Zhi from the City University of Hong Kong and his col- leagues are searching for ways to en- dow them with mechanical flexibili- ty.

It can be achieved with a new

electrolyte material; they developed a polyelectrolyte that can be stretched more than 10 times its length and compressed to half its

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