UMC shares surge 6.21% after-hours as SST and UMC launch 28nm automotive SuperFlash Gen 4 platform.

United Microelectronics Corporation (UMC) surged 6.21% in after-hours trading following the announcement that it and Silicon Storage Technology (SST) have launched the 28nm SuperFlash Gen 4 platform, now certified for automotive-grade production. The platform, integrated with UMC’s 28HPC+ process, meets stringent Automotive Electronics Council Q-100 Grade 1 standards, enabling high-reliability applications in automotive controllers. Key advantages include zero bit failures, 100% peak yield, and streamlined manufacturing steps, positioning UMC to capitalize on growing demand for advanced automotive semiconductors. The news underscores UMC’s competitive edge in a critical sector, aligning with the stock’s upward momentum as investors anticipate increased adoption and revenue from next-generation automotive solutions.