Breakthrough flash device could boost computing with faster, efficient chips

A team of researchers at Fudan University has achieved a major milestone in memory technology that could change how we build future computing systems. Their development of a two-dimensional single-electron quantum flash memory device addresses the limitations of current standards like DRAM and 3D NAND flash.

Modern computers rely on memory chips to store and retrieve data. Current solutions offer a trade-off. DRAM is fast but loses information without power. 3D NAND is nonvolatile but slow. The Fudan team spent over a decade working to combine speed, efficiency, and data retention in one structure.

By manipulating a single electron to represent one bit of information, the researchers created a device that functions at room temperature. This is a significant shift from previous quantum experiments that required extreme cold to observe electron behavior. The device achieves this using a structure that creates a memory window of 0.5 volts from just one electron.

This technology is designed to handle the heavy demands of artificial general intelligence. Because it can be integrated directly with processors, it minimizes data transfer delays. Lead researcher Zhou Peng notes that standard DRAM uses 200,000 electrons to store a single bit, while this new hardware performs the same task with just one.

The discovery also includes a phenomenon the researchers call the density of states scissors. This provides a theoretical basis for managing quantum states, potentially accelerating the path from lab experiments to commercial products. The result is a pathway toward higher density, lower power consumption, and improved processing speeds for the next generation of hardware.