SST and UMC Launch Advanced 28nm SuperFlash® Gen 4 Automotive Platform
On January 15, 2026, at a joint announcement from Silicon Storage Technology® (SST®), a subsidiary of Microchip Technology Inc. (Nasdaq: MCHP), and United Microelectronics Corporation (NYSE: UMC: TWSE: 2303), two key players in the semiconductor sector unveiled the full qualification and production release of the embedded SuperFlash® Gen 4 (ESF4) with automotive grade 1 (AG1) capabilities. This innovative platform utilizes UMC's advanced 28HPC+ foundry process technology and is expected to meet the growing demands of the automotive industry for high-performing vehicle controllers.
Key Features of the New ESF4 Platform
The development of ESF4, achieved through a close partnership between SST and UMC, showcases significant enhancements in embedded non-volatile memory (eNVM) performance, reliability, and manufacturing efficiency. By reducing the number of additional masking steps compared to competing 28nm High-k/Metal-Gate Stack (HKMG) eFlash technologies, SST offers notable cost advantages to their customers.
- AEC Q-100 Grade 1 qualification for temperatures of -40°C to +150°C (Tj)
- Read access time of less than 12.5ns
- Endurance cycles exceeding 100K+
- Data retention of over 10 years at 125°C
- Only 1-bit ECC required
- Qualification of a 32Mb macro under auto grade 1 conditions with zero bit failures
- Peak yield reached 100%
Industry Implications and Market Demand
The automotive sector continues to evolve rapidly, with increasing shipment volumes of automotive controllers that necessitate innovative solutions for various vehicle applications. As highlighted by Mark Reiten, Vice President of Microchip's licensing business unit, there is a pressing need for solutions that enhance efficiency and hasten time to market while conforming to stringent industry standards.
In light of these demands, Steven Hsu, Vice President of Technology Development at UMC, emphasized the necessity for highly reliable data storage solutions that can support high-capacity firmware updates, including over-the-air (OTA) processes. The launch of the 28nm ESF4 solution allows customers to tap into a wide range of existing models and intellectual property (IP) available in UMC's portfolio, addressing critical market requirements effectively.
Availability and Further Information
For those interested in SST's SuperFlash technology, further details can be accessed by visiting the SST website or by contacting a regional SST sales executive. Similarly, inquiries regarding UMC's offerings can be directed to the UMC website.
About Microchip Technology and UMC
Microchip Technology Inc., a significant supplier of semiconductors, is committed to simplifying innovative design through comprehensive system solutions catering to various market challenges. Headquartered in Chandler, Arizona, Microchip delivers solutions across industries including automotive, aerospace, and communications. For more information, visit Microchip's website.
United Microelectronics Corporation (UMC) is recognized as a leading global semiconductor foundry, offering high-quality IC fabrication services. UMC's expansive capabilities span various electronics sector needs, and the company operates multiple fabs across Asia, all standing certified with the IATF 16949 automotive quality standard. To learn more, access UMC's website.