Researchers at Fudan University have made a major breakthrough in memory technology with the development of a "PoX" (phase change oxide) chip. This non-volatile memory chip, which can read and write in the picosecond range—that is, one trillionth of a second—offers extraordinary speed compared to traditional memory technologies that operate in nanoseconds or milliseconds.
Unlike traditional SRAM and DRAM, the PoX chip retains data without power, a rare feature that combines energy efficiency and speed. Flash memory, while non-volatile, lags behind in speed, which limits its use in areas such as AI and real-time data processing. However, the PoX chip overcomes these obstacles.
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The success of the PoX chip lies in its revolutionary design. The chip uses two-dimensional Dirac graphene with high charge mobility instead of silicon, enabling ultra-fast flow of charges through a phenomenon called 2D super-injection. By manipulating the Gaussian length of the channel, PoX overcomes the speed limitations of traditional flash memory.
The Fudan team has already built a working PoX chip and completed successful tape-out and early trials. The team’s next goal is to collaborate with industry partners for mass production. The goal is to integrate the PoX chip into smartphones and computers.
This technology will significantly reduce the energy and time of data transfer. This will eliminate problems such as system lag and overheating, especially in edge AI applications. PoX chip opens up new possibilities for AI and real-time data processing.
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Researchers believe that the PoX chip will lead to major changes in the electronics industry. The arrival of PoX is important as the demand for fast, energy-efficient memory solutions increases.
If mass production and commercialization are successful, the PoX chip will increase the performance of devices ranging from smartphones to supercomputers. This achievement by Fudan University offers the possibility of redefining the future of memory technology.
The discovery has attracted the attention of researchers and industry experts around the world. The development of the PoX chip is a testament to the infinite human ability to redefine the boundaries of technology.