Netease Technology News, September 2 news Ziguang Group's Yangtze River Storage announced on the eve of IC China 2019, the company has begun mass production of 64-layer 256 Gb TLC 3D NAND flash memory based on Xtacking architecture to meet the mainstream market such as solid state drive, embedded storage Application requirements.

As China's first 64-layer 3D NAND flash memory, the product will be unveiled at the IC China 2019 Ziguang Group booth.

The Yangtze River Storage 64-layer 3D NAND flash memory is the world's first flash memory product designed and mass-produced based on the Xtacking architecture, with the highest storage density of its generation. Xtacking enables peripheral circuits and memory cells to be fabricated separately on two separate wafers, which facilitates the selection of more advanced manufacturing processes. When the two wafers are completed, Xtacking technology can bond two wafers through billions of Vertical Interconnect Channels (VIAs) in a single processing step. Compared to traditional 3D NAND flash architectures, Xtacking delivers faster I/O transfer speeds, higher storage densities and shorter time-to-market.

Cheng Weihua, co-chief chief technology officer and senior vice president of technology research and development center of Changjiang Storage, said: “By introducing Xtacking architecture into mass production, it can significantly improve product performance, shorten development cycle and manufacturing cycle, and promote the market of high-speed and large-capacity storage solutions. Rapid development. “We also mentioned that, with the advent of 5G, artificial intelligence and ultra-large data centers, the demand for the flash memory market will continue to grow.” Mass production of 64-layer 3D NAND flash memory products from the Yangtze River will inject new impetus into the healthy development of the global memory market. ”