Alpha and Omega Semiconductor intros first generation Alpha-MOS platform

SUNNYVALE, USA: Alpha and Omega Semiconductor Ltd (AOS) introduced at APEC 2011 its first high-voltage (600V) product based on a proprietary Alpha-MOS technology platform.

By taking advantage of major enhancements in process technology, the new device offers designers exciting new opportunities to build higher efficiency power supplies and meet the increasingly stringent green product requirements.

AOS continues to execute its strategy to be a full service power solution provider by introducing its proprietary 600V Alpha-MOS technology platform. The first product on this platform, AOTF27S60, is well suited for high voltage primary side applications. This new device reduces RdsA by a factor of 3.5 compared to its planar 600V MOSFETs, and improves the switching figure-of-merit Rds*Qg by a factor of 5.7.

The Rds*Qg figure-of-merit is also 4.3 times lower than the super-junction technology recently released by a leading competitor. This state-of-the-art super-junction technology has been implemented on 200mm wafers, and promises to bring significant advantages in terms of process control, precision and cost. The device is available in TO-220, TO-220F, TO-262, TO-262F and D2PAK packages with Green and Pb-Free options.

"By lowering on-resistance and reducing capacitive switching losses, the move to Alpha-MOS offers power supply designers significant improvements in efficiency," said Dr. Anup Bhalla, VP of High-Voltage MOSFETs at AOS. "This product delivers very attractive benefits in a whole new range of markets where power requirements are increasingly demanding."

"We are very pleased with the introduction of this new high-voltage technology platform, which marks another important milestone in the continued execution of our strategy. AOTF27S60 is the first of many products we expect to introduce utilizing this new high-voltage platform," commented Dr. Mike Chang, president and CEO of AOS.

"As discussed previously in our earnings call on February 2, 2011, we intend to step up our R&D efforts in the high-voltage area during this calendar year, and the introduction of this new technology platform today enables us to develop a portfolio of products based on this platform. We will be working closely with our customers in the upcoming months to compete for design-wins for our high-voltage products. Based on the typical product development and sales cycle, the production ramp is expected to begin slowly; nonetheless we expect this high-voltage product line will start to contribute meaningfully to our revenue in late calendar year 2012."