Atomera (ATOM) Introduces MST Technology to Enhance GaN-on-Silicon Performance for RF Applications - Yahoo Finance

Atomera Inc. (NASDAQ: ATOM) introduced its proprietary MST (Modified Surface Treatment) technology on June 4, 2026, aimed at enhancing the performance of GaN-on-Silicon for RF applications. By embeddi... Read original →

Atomera’s MST technology directly mitigates interfacial charge issues in GaN-on-Silicon RF devices by embedding an oxygen-modified layer into silicon wafers, enabling cost-effective silicon platforms to rival RF SOI performance. This will compel upstream wafer suppliers like AXT to adapt surface treatment processes and prompt downstream 5G/6G chipset designers to reassess reliance on expensive compound semiconductors. From a compliance standpoint, MST strengthens U.S.-centric silicon supply chains but faces potential export control risks when integrated with EUV-based 3nm nodes. Competitors like Qorvo and Skyworks may accelerate in-house alternatives or lobby for new RF standards to slow MST adoption. Within 18 months, if major foundries validate MST integration, silicon-based GaN could dominate Sub-7GHz commercial deployments, fundamentally reshaping RF front-end economics.