Tag Archives: Clean Rooms

With companies like Google, Microsoft, and IBM all racing to create the world’s first practical quantum computer, scientists worldwide are exploring the potential materials that could be used to build them.

Now, Associate Professor Yang Hyunsoo and his team from the Department of Electrical and Computer Engineering at the National University of Singapore (NUS) Faculty of Engineering have demonstrated a new method which could be used to bring quantum computing closer to reality.

“The NUS team, together with our collaborators from Rutgers, The State University of New Jersey in the United States and RMIT University in Australia, showed a practical way to observe and examine the quantum effects of electrons in topological insulators and heavy metals which could later pave the way for the development of advanced quantum computing components and devices,” explained Assoc Prof Yang.

The findings of the study were published in the scientific journal Nature Communications in June 2018.

The advantage of quantum computers

Quantum computers are still in the early stages of development but are already displaying computing speeds millions of times faster than traditional technologies. As such, it is predicted that when quantum computing becomes more readily available, it will be able to answer some of the world’s toughest questions in everything from finance to physics. This remarkable processing power is made possible by the radical way that quantum computers operate – using light rather than electricity.

Classical computers push electrons through devices which code information into binary states of ones and zeros. In contrast, quantum computers use laser light to interact with electrons in materials to measure the phenomenon of electron “spin”. These spinning electron states replace the ones and zeros used as the basis for traditional computers, and because they can exist in many spin states simultaneously, this allows for much more complex computing to be performed.

However, harnessing information based on the interactions of light and electrons is easier said than done. These interactions are incredibly complex and like anything in the quantum world there is a degree of uncertainty when trying to predict behaviour. As such, a reliable and practical way to observe these quantum effects has been sought-after in recent research to help in the discovery of more advanced quantum computing devices.

Visualising quantum spin effects

The real breakthrough from the scientists at NUS was the ability to “see” for the first time particular spin phenomena in topological insulators and metals using a scanning photovoltage microscope.

Topological insulators are electronic materials that are insulating in their interior but support conducting states on their surface, thus enabling electrons to flow along the surface of the material.

Assoc Prof Yang and his team examined platinum metal as well as topological insulators Bi2Se3 and BiSbTeSe2. An applied electrical current influenced the electron spin at the quantum level for all of these materials and the scientists were able to directly visualise this change using polarised light from the microscope.

Additionally, unlike other observational techniques, the innovative experimental setup meant that the results could be gathered at room temperature, making this a practical method of visualisation which is applicable to many other materials.

Mr Liu Yang, who is a PhD student with the Department and first author of the study, said, “Our method can be used as a powerful and universal tool to detect the spin accumulations in various materials systems. This means that developing better devices for quantum computers will become easier now that these phenomena can be directly observed in this way.”

Next steps

Moving forward, Assoc Prof Yang and his team are planning to test their new method on more novel materials with novel spin properties. The team hopes to work with industry partners to further explore the various applications of this unique technique, with a focus on developing the devices used in future quantum computers.

JULY 15, 2009 — SPARTANBURG, SC — Contec, Inc. has announced an agreement to purchase the Anticon Products Wiping Cloth business from Milliken & Company. Contec has manufacturing facilities in Spartanburg and Suzhou, China.

Contec CEO Jack McBride states that “As long as I can remember Milliken has been a technological leader in textiles for critical industrial applications. The current state of the economy has made consolidation a necessity in our industry so this step makes sense for both companies. Contec is excited about working together with Milliken to bring their proprietary technology to a broader global market. The Anticon® brand is synonymous with superior performance and value. Contec has a track record of taking great technology platforms such as the Anticon line and growing them into significant businesses through superior applications engineering and world-class manufacturing.
Our team believes we can expand the global market for Anticon products and keep as many jobs in the upstate as possible. We view this as a long-term partnership with a technological industry leader.”

During a 6-month transition period, most Anticon® products will continue to be made in their current location, says McBride. “Customers can be assured of a smooth transition and a continuation of the quality manufacturing they have come to expect from Milliken’s Anticon brand.”

More information about Contec, Inc. can be found at www.contecinc.com. To learn more about Anticon Products, visit www.anticonwipers.com.

JULY 16, 2009 — EAST WINDSOR, CT — High-Tech Conversions Inc., a manufacturer of wiping products and a supplier of consumable items used in cleanrooms, assembly lines, laboratories and manufacturing, has moved to a larger corporate headquarters that will quadruple the size of its former facility. The new address for the headquarters in Enfield, CT is 1699 King Street.

According to the company, the brand new modern facility will enable High-Tech to better serve its customers and provide room for future growth. “The move went smoothly and it is business as usual here at High Tech. We continue to grow, despite the economic downturn

JULY 17, 2009 — LANDENBERG, PA — W. L. Gore & Associates, Inc. (Gore) announces the results of a cable particulation study it contracted with the Fraunhofer Institute for Manufacturing Engineering and Automation IPA in Stuttgart, Germany. The study measured the particulation of four different cable systems for ISO cleanroom certification