Report on Rapidus's delayed SRAM implementation raises possibility of disruptions to 2nm mass production

Rapidus’s plan to mass-produce 2-nanometer chips by March 2028 may slip after Bloomberg reported the Japanese foundry has yet to produce a working SRAM cell, citing unnamed sources. The sources said Rapidus has not secured stable SRAM production technology needed for mass output, pushing the schedule at least several months behind plan, with cleanroom dust and particle control also flagged as challenges. The issue matters because 2nm logic chips embed hundreds of millions of SRAM cells whose transistor structures must be reproduced at atomic-level precision for reliable operation and data storage. Watch whether Rapidus secures stable SRAM yields by summer and whether the delay affects customer commitments and Japan’s advanced-node ambitions.