CXMT G5 DRAM Enters Mass Production With 11.95nm Pitch
ChangXin Memory Technologies (CXMT) has officially entered full-scale mass production of its fifth-generation DRAM technology platform, known as G5, marking a major expansion of the company’s domestic DRAM manufacturing capabilities.
The announcement was made at the 2026 World Manufacturing Convention, where CXMT also unveiled two high-capacity LPDDR5X products developed using the G5 platform. The new products feature a single-die capacity of 24Gb, representing a 50% increase over the corresponding previous-generation products.
According to CXMT, the G5 platform introduces new process, structural, and materials technologies across the DRAM manufacturing flow. The company says its memory-array active-area half-pitch has been reduced to 11.95 nm, while additional innovations target capacitor structures, transistor architecture, power efficiency, manufacturing yield, and development-cycle optimization.
The transition from development to mass production is particularly significant because advanced DRAM process technology directly affects memory density, power consumption, manufacturing economics, and the ability to produce high-capacity memory for smartphones, PCs, AI systems, and other increasingly memory-intensive applications.
🧩 Major Process and Materials Innovations #
CXMT’s G5 platform incorporates multiple changes across the underlying DRAM manufacturing process rather than relying on a single scaling technique.
11.95nm memory-array half-pitch #
At the process-scaling level, CXMT says it has implemented Quadruple Patterning Technology to reduce the memory-array active-area half-pitch to 11.95 nm.
This tighter pitch allows more memory structures to be integrated into a given silicon area. In practical terms, continued scaling can increase memory density while creating additional opportunities to improve manufacturing efficiency and reduce the physical footprint of individual memory dies.
CXMT describes the resulting process parameters as approaching those of leading global DRAM manufacturing platforms, although direct comparisons between process nodes should be treated carefully because semiconductor manufacturers can use different definitions and structures when reporting process dimensions.
Advanced capacitor and transistor structures #
The G5 platform also introduces changes to the DRAM cell structure and materials. CXMT reports a 45:1 capacitor aspect ratio, supported by specialized process technologies intended to improve charge retention and reduce leakage.
The company has additionally developed a DRAM-specific High-k Metal Gate (HKMG) process. CXMT says the approach helps optimize the core chip architecture while reducing the height of the platform’s core functional region to 6,762 nm.
Together, these technologies are intended to support higher integration density, lower operating power, and improved memory stability as the DRAM process continues to scale.
Additional proprietary process technologies #
CXMT also highlights work on several specialized manufacturing technologies, including interface engineering, saddle-fin structures, and low-k spacer bitlines.
These technologies address different parts of the DRAM fabrication flow and form part of CXMT’s broader effort to establish an internally developed process platform capable of supporting continued G5 production and subsequent iterations.
🖥️ Digital Twin Accelerates DRAM Development #
The G5 platform is not based solely on improvements to physical semiconductor manufacturing. CXMT has also incorporated a self-developed Digital Twin system into its research and development process.
The system covers multiple stages of the product lifecycle, including:
- DRAM chip design
- Process development
- Manufacturing-line operations
- Equipment maintenance
- Product iteration
By creating virtual models of DRAM manufacturing processes, CXMT can simulate production scenarios before implementing changes on physical manufacturing lines.
This approach is intended to reduce the cost of trial-and-error experimentation, shorten development cycles, and make process optimization more systematic. For advanced semiconductor manufacturing, where physical wafer experiments can be expensive and time-consuming, greater use of process simulation can help accelerate the transition from research and development to stable production.
📈 Higher Density and Wafer Efficiency #
One of the most important benefits CXMT attributes to the G5 platform is improved manufacturing efficiency.
According to the company, G5 delivers at least 50% more net dies per wafer than its fourth-generation platform. More usable dies from each wafer can improve manufacturing economics by reducing the effective wafer cost allocated to each memory chip.
The combination of higher density and improved wafer utilization also provides a foundation for producing higher-capacity DRAM products without requiring a proportional increase in silicon consumption.
CXMT further states that the new process architecture and materials provide improvements in power control and operational stability compared with previous-generation products, aligning with the increasing demand for high-performance memory with tighter power constraints.
📱 24Gb LPDDR5X Targets High-End Devices #
The first major products based on the G5 platform are two 24Gb LPDDR5X memory products unveiled alongside the mass-production announcement.
Each die provides 24Gb of capacity, which CXMT says is 50% higher than the corresponding previous-generation products. Higher per-die capacity can simplify the construction of high-capacity memory packages and provide additional flexibility for device manufacturers.
CXMT identifies several target applications, including:
- High-resolution smartphone imaging
- Large-scale mobile gaming
- Background multitasking
- On-device AI workloads
- Tablets
- Thin-and-light laptops
- Wearable devices
The products are offered in 496-ball and 245-ball package configurations, allowing manufacturers to select package options according to the requirements of different mobile and portable platforms.
CXMT says both products have completed production-line verification and entered full-scale mass production.
🔗 LPDDR5X Enters Flagship Smartphone Supply Chains #
CXMT also states that its new 24Gb LPDDR5X products have entered the supply chains of domestic mainstream flagship smartphones.
This represents an important transition from development and verification toward commercial deployment in higher-end consumer electronics. Rather than being limited to lower-cost or capacity-focused applications, the G5-based memory is being positioned for devices with demanding performance, bandwidth, capacity, and power requirements.
The actual performance characteristics, customer list, shipment volumes, and device-specific configurations remain dependent on individual manufacturers and product designs. CXMT’s announcement nevertheless indicates that its latest DRAM platform has progressed beyond laboratory development into commercial mass production and supply-chain deployment.
🌐 Implications for the DRAM Supply Chain #
The G5 platform gives CXMT a new manufacturing foundation for scaling domestic DRAM production toward higher densities and more advanced applications.
For the broader memory industry, improvements in manufacturing capacity and process technology can affect both product availability and supply-chain diversification. The significance of the G5 platform therefore extends beyond individual LPDDR5X products: it provides CXMT with a process foundation that can potentially support additional DRAM products and future technology generations.
CXMT says it will continue developing new memory technologies in response to global market demand, with a focus on higher performance, reliability, and manufacturing capability.
With G5 now entering full-scale production and 24Gb LPDDR5X products moving into commercial supply chains, CXMT’s latest platform marks a significant step in the company’s ongoing expansion of advanced DRAM manufacturing.