CXMT plans to commercialize its first 4F2 memory product, a server DDR5 RDIMM, by the end of the year.
The design leverages vertical transistors to shrink cell footprint by roughly one-third compared to standard 6F2 layouts, following years of research and patent filings.
The new memory is based on a denser arrangement that uses vertical transistors, a technology that has not yet been commercially exploited in the market. According to theoretical data, this design reduces the space occupied by each memory element by about a third. So far, the company has not announced the speeds or capacities of the new product.
The company's president presented these designs at the Integrated Chips and Chiplets Conference. This architecture occupies about two-thirds of the area required by today's 6F² memories in the same form factor, while all known designs to date place the transistor in an upright position.
The company has filed patents and published research on this technology in 2021, 2023, and 2025. In addition, it had presented an 8Gb research example at the IEDM conference in 2023.
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