TSMC A14 Node to Break Eight Years of SRAM Scaling Stagnation

TSMC, the world's largest and most advanced semiconductor manufacturer, has been grappling with stagnant progress in SRAM scaling for years. Since the launch of the N5 5 nm process in 2020, the size of the SRAM 6T bitcell has remained around 0.021 µm². While transistor density in logic elements has increased, memory has not seen similar advancements. However, with the introduction of the A14 node, set for production in 2028, TSMC's 6T SRAM bitcell is expected to shrink significantly to 0.017 µm², marking a 19% reduction. This breakthrough indicates that TSMC has successfully advanced the technology and is ready to bring it to mass production with the A14 node.

TSMC is currently conducting pilot production to assess the viability of this semiconductor node, enabling customers to evaluate how their designs will perform in TSMC's production environment. The progress of the A14 node production is promising, with timelines advancing due to early successes. If pilot production continues smoothly without major yield or production issues, risk production is set to commence in 2027, followed by high-volume manufacturing in 2028. If no significant challenges arise next year, TSMC may even accelerate the production schedule by a few months. Read full story