Osaka Scientists Unveil 'Living' Electrodes That Can Enhance Silicon Devices - Related to 'living', flash, devices, japan, silicon

Japan Will Tighten Control of Computer Chips and Quantum Tech Exports

Japan's central government will adjust its control over cutting-edge chips and quantum computer-related technology—a Japan Times news article proposes that new regulations will come into effect by the end of May. The analysis hints at that the nation's governing body is expanding its list of export-controlled items to include: "advanced chips, lithography equipment and cryo-coolers needed for the manufacture of quantum computers." The publication has gathered this information from revised foreign exchange laws. , companies will be required to apply for external trade licenses—extra measures are being put in place to prevent the export of cutting-edge items to foreign military organizations. The updated terms are viewed as another step in tightening the supply of advanced semiconductor products to mainland China. Recent global events have paved the way for a new wave of AI chip-related restrictions.Naturally, China has expressed concern regarding upcoming changes—they anticipate problems affecting supply chains and normal commercial exchanges between enterprises. , the Ministry of Commerce in Beijing: "hopes Japan will make sure the measures don't hinder the economic and trade development between the two countries." The two nations have enjoyed a cordial semiconductor-centric trade relationship, skewed more in favor of Japan. Industry watchdogs believe that Chinese manufacturers have generated significant demand for Japanese-made production equipment. Japan's Ministry of Economy, Trade and Industry (METI) has updated its documents. , 42 new entities worldwide have been added to a list of: "foreign companies and organizations that would be subject to export oversight on any dual-use items. The additions come into effect on Feb. 5, it revealed. A total of around 110 Chinese companies, research institutions and other entities are on the list."

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Plasma Technology Doubles Etch Rate for 3D NAND Flash Memory

"Cryo etch with the hydrogen fluoride plasma showed a significant increase in the etching rate compared to previous cryo-etch processes, where you are using separate fluorine and hydrogen reports," mentioned Thorsten Lill of Lam Research.

"Most people are familiar with NAND flash memory because it's the kind that is in the memory cards for digital cameras and thumb drives. It is also used in computers and mobile phones. Making this type of memory denser still—so that more data can be packed into the same footprint—will be increasingly critical as our data storage needs grow due to the use of artificial intelligence," stated Igor Kaganovich, a principal research physicist at PPPL.

Scientists have made a big step forward in data storage technology, they've managed to improve the manufacturing process for 3D NAND flash memory. This type of storage technology stacks memory cells on top of each other to obtain higher data density. A team of experts from Lam Research, the University of Colorado Boulder, and Princeton Plasma Physics Lab came up with a better way to etch (the process of carving holes into alternating layers of silicon oxide and silicon nitride) by using hydrogen fluoride plasma. This new method cuts vertical channels through silicon-based materials twice as fast as before achieving 640 nanometers in just one [website] team found out that mixing in certain chemicals like phosphorus trifluoride helps the etching process. They also learned that some byproducts can slow down etching, but adding water can help fix this problem. "The salt can decompose at a lower temperature when water is present, which can accelerate etching", said Yuri Barsukov, a former PPPL researcher now working at Lam Research. This breakthrough is important as the need for data storage received a huge boost with the rise of AI programs, that need tons of [website] study was & Technology A (2024).

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Osaka Scientists Unveil 'Living' Electrodes That Can Enhance Silicon Devices

Shrinking components was (and still is) the main way to boost the speed of all electronic devices; however, as devices get tinier, making them becomes trickier. A group of scientists from SANKEN (The Institute of Scientific and Industrial Research), at Osaka University has discovered another method to enhance performance: putting a special metal layer known as a metamaterial on top of a silicon base to make electrons move faster. This approach displays promise, but the tricky part is managing the metamaterial's structure so it can adapt to real-world [website] address this, the team looked into vanadium dioxide (VO₂). When heated, VO₂ changes from non-conductive to metallic, allowing it to carry electric charge like small adjustable electrodes. The researchers used this effect to create 'living' microelectrodes, which made silicon photodetectors advanced at spotting terahertz light. "We made a terahertz photodetector with VO₂ as a metamaterial. Using a precise method, we created a high-quality VO₂ layer on silicon. By controlling the temperature, we adjusted the size of the metallic regions—much larger than previously possible—which affected how the silicon detected terahertz light," says lead author Ai I. [website] the temperature was just right, VO₂s metallic parts formed a network that changed the electric field in the silicon layer. As a result, the silicon became more responsive to terahertz light, and by changing the temperature, it allowed the 'living' metallic regions in VO₂ to boost the silicon's reaction to terahertz light."Heating the photodetector to 56°C significantly improved its signal. This happened because the silicon layer and the dynamic VO₂ microelectrode network worked together at this temperature. The controlled VO₂ structure amplified the electric field, improving silicon's performance," explains senior author Azusa [website] research points to the potential of metamaterials, as it could pave the way for quicker, more effective electronics that surpass what traditional materials can do. However, one of the concerns is the fact that in order to be effective, the temperature must be controlled [website] article "Si−VO₂ Hybrid Materials with Tunable Networks of Submicrometer Metallic VO₂ Domains Provide Enhanced Diode Functionality," was .

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