Alpha and Omega Semiconductor Releases Robust 600V AlphaMOS-II MOSFET Family

 Alpha and Omega Semiconductor
475 Oakmead Parkway, Sunnyvale, California 94085 USA
Media Contact: Martha Aparicio
Tel: 408.789.3233
Email: [email protected]
Alpha and Omega Semiconductor Releases Robust
600V AlphaMOS-II MOSFET Family
Ideal solutions for high-voltage applications where reliability and performance are critical
SUNNYVALE, Calif., Feb. 15, 2013 – Alpha and Omega Semiconductor Limited (AOS) (Nasdaq: AOSL), a designer,
developer and global supplier of a broad range of power semiconductors and power ICs, today introduced the AOTF11C60
and AOTF20C60, 600V MOSFETs with AlphaMOS™ II technology. The AlphaMOS II (a patent pending proprietary
structure and process) combines planar-like robustness and controlled switching characteristics with the low on-resistance
performance of super-junction type devices. The AOTF11C60 and AOTF20C60 are ideally suited for high-voltage
applications where reliability and performance are critical. Such applications include server, telecom and networking power
supplies, uninterruptable power supplies, solar inverters, industrial motor control systems, and LED lighting.
AOS’s new AlphaMOS II technology offers a simplified manufacturing process without compromising the core performance
of the MOSFET. The AOTF11C60 and AOTF20C60 offer significant improvement in UIS capability over super-junction.
Additionally the new family has been optimized for low noise operation and high efficiency by fine tuning the switching
parameters. Their low RDS(ON), Ciss and Crss, make the new MOSFETs perfectly suited for designs that require high efficiency,
robustness and reliability.
“As efficiency and reliability becomes more and more critical, power designers need high voltage MOSFETs which can
withstand reverse recovery current spikes and can also reduce switching and conduction losses. With their unique structure,
the new AlphaMOS II products help designers achieve all that in a more robust solution.” said Yalcin Bulut, Vice President
of Discrete Product Lines at AOS.
AOTF11C60 Technical Highlights
 600V N-channel MOSFET
 RDS(ON) < 0.4 Ohms max at VGS = 10V
 COSS = 108 pF typ
 Qg (10V) = 30 nC typ
AOTF20C60 Technical Highlights
 600V N-channel MOSFET
 RDS(ON) < 0.25 Ohms max at VGS = 10V
 COSS = 190 pF typ
 Qg (10V) = 52 nC typ
Tel: 408.830.9742 • Fax: 408.830.9757 •
Pricing and Availability
The AOTF11C60 and AOTF20C60 100% Rg and UIS tested and are housed in Halogen Free RoHS compliant TO-220F
packages. The devices are immediately available in production quantities with a lead-time of 12 weeks. The unit price for
10,000 pieces is $0.925 and $1.54, respectively.
About AOS
Alpha and Omega Semiconductor Limited, or AOS, is a designer, developer and global supplier of a broad range of power
semiconductors, including a wide portfolio of Power MOSFET, IGBT and Power IC products. AOS has developed extensive
intellectual property and technical knowledge that encompasses the latest advancements in the power semiconductor
industry, which enables us to introduce innovative products to address the increasingly complex power requirements of
advanced electronics. AOS differentiates itself by integrating its Discrete and IC semiconductor process technology, product
design, and advanced packaging know-how to develop high performance power management solutions. AOS's portfolio of products targets high‐volume applications, including portable computers, flat panel TVs, LED lighting, smart phones, battery packs, consumer and industrial motor controls and power supplies for TVs, computers, servers and telecommunications equipment. For more information, please visit
Forward Looking Statements
This press release contains forward-looking statements that are based on current expectations, estimates, forecasts and
projections of future performance based on management's judgment, beliefs, current trends and anticipated product
performance. These forward-looking statements include, without limitation, references to the efficiency and capability of new
products, and the potential to expand into new markets. Forward looking statements involve risks and uncertainties that may
cause actual results to differ materially from those contained in the forward-looking statements. These factors include, but are
not limited to, the actual product performance in volume production, the quality and reliability of the product, our ability to
achieve design wins, the general business and economic conditions, the state of the semiconductor industry, and other risks as
described in the Company's annual report and other filings with the U.S. Securities and Exchange Commission. Although the
Company believes that the expectations reflected in the forward looking statements are reasonable, it cannot guarantee future
results, level of activity, performance, or achievements. You should not place undue reliance on these forward-looking
statements. All information provided in this press release is as of today's date, unless otherwise stated, and AOS undertakes
no duty to update such information, except as required under applicable law.
Tel: 408.830.9742 • Fax: 408.830.9757 •