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Chinese researchers achieve making world's fastest flash memory device: Nature

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      Chinese researchers achieve making world's fastest flash memory device: Nature

      2025-04-18 16:44 Last Updated At:17:07

      A Chinese research team has developed a revolutionary flash memory device that can store data at a speed of one bit per 400 picoseconds, setting a new record for the fastest semiconductor storage device ever reported.

      This groundbreaking research result by Shanghai-based Fudan University researchers was published in Nature on Wednesday.

      Named "PoX," this non-volatile memory outperforms even the fastest volatile memory technologies, which take around one to ten nanoseconds to store one bit of data. A picosecond is one-thousandth of a nanosecond or one-trillionth of a second.

      Volatile memories like SRAM and DRAM, which lose data on power loss, are ill-suited for low-power systems, while non-volatile memories like flash, though energy-efficient, fail to meet the high-speed data access demands of AI.

      The Fudan University researchers developed a two-dimensional Dirac graphene-channel flash memory using an innovative mechanism, shattering the speed limits of non-volatile information storage and access.

      "The increase in speed is a major breakthrough, completely overcoming a theoretical bottleneck in existing storage technology frameworks," said Liu Chunsen, a researcher at the State Key Laboratory of Integrated Chips and Systems at Fudan University.

      Liu explained that the computation of large AI models mainly relies on GPU chips, and current commercial GPU chips can achieve 33.5 trillion floating-point operations per second while the speed of writing or erasing memory associated with them still lingers at the microsecond (one millionth of a second) level.

      "PoX" is precisely tailored to meet the demands of high-speed computation by GPU chips, said Liu.

      To expedite the practical application of this groundbreaking technology, the research team has deeply collaborated with manufacturing enterprises during the research and development process. A tape-out verification has been carried out, achieving initial results.

      "We have now been able to make a small-scale, fully functional chip. The next step involves integrating it into existing smartphones and computers. This way, when deploying local models on our phones and computers, we will no longer encounter the bottleneck issues such as lagging and heating caused by existing storage technology," said Liu.

      Chinese researchers achieve making world's fastest flash memory device: Nature

      Chinese researchers achieve making world's fastest flash memory device: Nature

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      Shanghai launches major shopping festival to boost consumer spending

      2025-05-02 04:18 Last Updated At:07:17

      The sixth edition of Shanghai's iconic "5·5 Shopping Festival" kicked off on Thursday, alongside the 2025 International Consumption Season, in a renewed push to boost domestic demand and revitalize consumer spending.

      Co-hosted by the Ministry of Commerce, China Media Group (CMG), and the Shanghai Municipal Government, the event promises a vibrant mix of promotional campaigns, themed events, and immersive retail experiences across the city's commercial districts.

      Centering on the theme "Quality Consumption, Demand Creation," the festival targets four key consumer sectors: services, big-ticket purchases, inbound spending, and emerging consumption trends. It also highlights new economic frontiers such as the debut economy, the silver economy, the nighttime economy, and the ticket-based economy—aimed at unlocking consumer potential and enhancing Shanghai's commercial vitality through new product launches, senior-friendly services, dynamic nightlife, and spending on cultural activities.

      The festival launch ceremony also included the Fourth International Consumption Center City Forum. In a video address, Marwan Ahmed Bin Ghalita, Acting Director General of Dubai Municipality, expressed hopes for deeper cooperation between Shanghai and Dubai as the two metropolises mark the 25th anniversary of their sister-city relationship. He emphasized their shared vision for urban development and prosperity.

      Another highlight of the festival was the debut of the "CMG Select: Shanghai Pavilion." Combining celebrity hosts, culture, art, and premium brands, the pavilion leverages CMG's influential media platform to energize consumer activity and support Shanghai's drive to become a world-class consumption center.

      The shopping festival will run through the end of June, with over 1,000 companies and thousands of brands set to launch more than 1,000 special events.

      The 2025 International Consumption Season is a flagship event under the "Shop in China" campaign. Jointly launched by the Ministry of Commerce and five other government departments, the initiative will mobilize regions across the country to spotlight premium international and domestic goods. It will feature product debuts, first launches, and consumer-friendly measures to help both domestic shoppers and inbound tourists access high-quality global merchandise and enjoy top-tier services.

      Shanghai launches major shopping festival to boost consumer spending

      Shanghai launches major shopping festival to boost consumer spending

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