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Media contact -  Andrew Post, Sr. Manager, Global Communications
Phone:  1.610.251.5287 
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Siliconix and STMicroelectronics Announce License Agreement for New Double-Sided Cooling MOSFET Packaging Technology


Siliconix and STMicroelectronics Announce License Agreement
For more information:
Media contact -  Andrew Post, Sr. Manager, Global Communications
Phone:  1.610.251.5287 
Fax:  1.610.889.9429 
E-mail:  andrew.post@vishay.com

Sales contact: 

GENEVA, Switzerland and SANTA CLARA, Calif. — March 10, 2005 —croelectronics (NYSE: STM) and Siliconix incorporated (NASDAQ: SILI), an 80.4%-owned subsidiary of Vishay Intertechnology, Inc. (NYSE: VSH), today announced that the two companies have concluded an agreement whereby ST will license from Siliconix a new power MOSFET packaging technology that provides superior thermal performance via top and bottom heat dissipation paths in systems using forced air cooling.

Offered by Siliconix under the PolarPAK™ name, the new package's leadframe and plastic encapsulation are similar to those used for most standard power MOSFET packages, ensuring good die protection and easy handling in manufacturing. Yet compared with the standard SO-8, the PolarPAK package dissipates heat so efficiently that it can handle twice the current within the same footprint dimensions.

“With the size of dc-to-dc converters continuing to shrink, it has become a challenge to dissipate the heat generated by various components on the PCB,” said Ian Wilson, Manager of the Power MOSFET Division, STMicroelectronics. “Advances in packaging need to be developed in tandem with silicon technology improvements. The PolarPAK package, with its superior thermal handling capability, represents a remarkable evolution in assembly technology allowing designers to increase efficiency and power density. This package technology will complement ST's range of STripFETTM MOSFETs optimized for power conversion in computer, datacom, and telecom applications.

“By working together with Siliconix we will achieve the greater market acceptance of this new package necessary to enable cost-effective solutions” said Carmelo Papa, Corporate Vice President and General Manager of the Microcontroller, Linear and Discretes Product Group, STMicroelectronics. “We are strongly committed to the computer and telecom segments, where we want to be an important player through continuous innovation.”

“Siliconix power MOSFET innovations include the industry's first trench power MOSFETs and a wide range of package types that maximize power density and thermal performance,” said Dr. Felix Zandman, Vishay Chairman and Chief Technical and Business Development Officer, and Dr. Gerald Paul, Vishay President and CEO. “PolarPAK is the latest in a long line of such technology milestones that have made Siliconix and Vishay industry leaders, and this new agreement with STMicroelectronics is a proud moment for us.”

“In signing this agreement with STMicroelectronics, we are taking a significant step towards the adoption of PolarPAK as an industry-standard package by giving our customers the flexibility of being able to design with a multi-source solution,” said Dr. King Owyang, Siliconix President and CEO. “We are proud to have a semiconductor industry leader such as ST recognize the benefits that PolarPAK can bring to a wide range of power MOSFET applications.”

By delivering superior thermal performance and reducing package-related losses, the 5mm by 6mm PolarPAK package allows designers to create smaller, more compact circuit designs with a lower component count. With a height dimension of just 0.8 mm, half the height of the SO-8, the PolarPAK package enables end products that are thinner as well.

About STMicroelectronics
STMicroelectronics is a global leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications. An unrivalled combination of silicon and system expertise, manufacturing strength, Intellectual Property (IP) portfolio and strategic partners positions the Company at the forefront of System-on-Chip (SoC) technology and its products play a key role in enabling today's convergence markets. The Company's shares are traded on the New York Stock Exchange, on Euronext Paris and on the Milan Stock Exchange. In 2004, the Company's net revenues were $8.76 billion and net earnings were $601 million. Further information on ST can be found at www.st.com.

Vishay Intertechnology, Inc., a Fortune 1000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers of discrete semiconductors (diodes, MOSFETs, and infrared optoelectronics) and passive electronic components (resistors, inductors, and capacitors). These components are used in virtually all types of electronic devices and equipment, in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, power supplies, and medical markets. Vishay’s product innovations, successful acquisition strategy, and "one-stop shop" service have made it a global industry leader. Vishay can be found on the Internet at www.vishay.com.

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PolarPAK is a trademark of Siliconix incorporated

For further information, please contact

For further information, please contact
Siliconix  
Peter Henrici
Vice President
Vishay Intertechnology, Inc.
Telephone: +1-408-567-8400
E-mail: peter.henrici@vishay.com
 

STMicroelectronics
 
Maria Grazia Prestini
Director, Corporate Media Relations
Tel: +41.2.29.29.69.45
Email: mariagrazia.prestini@st.com
Michael Markowitz
Director, U.S. Media Relations
Tel: +1.212.821.8959
Email: michael.markowitz@st.com
For more information:
Media contact -  Andrew Post, Sr. Manager, Global Communications
Phone:  1.610.251.5287 
Fax:  1.610.889.9429 
E-mail:  andrew.post@vishay.com

Sales contact: