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NEW TRANSISTOR CREATED THAT USES 80% LESS POWER

IBM announced an innovative chip design for future wireless devices that can improve performance fourfold or reduce power consumption fivefold.

This announcement builds on IBM's recent announcement of clever new design and manufacturing methods that improve the performance and lower the power consumption of pure computing chips. As the wireless industry continues to grow, device manufacturers also need better mixed-signal chips that support computing applications as well as high frequency communications applications. This new chip design uses a revolutionary wafer thin enough to maximize the performance of both the computing and communications components.

Today complementary metal oxide semiconductor (CMOS) chips are the foundation for computing applications; silicon germanium (SiGe) bipolar chips provide radio frequency communications and analog functions. To improve the reliability of wireless devices, chip manufacturers have created SiGe BiCMOS chips that put computing and communications transistors onto one chip instead of using separate chips for computing and communications applications.

CMOS computing chips show higher performance when built atop a thin silicon on insulator (SOI) wafer. However, traditional SiGe bipolar transistors cannot be built on a thin SOI wafer. Until now, no one had been able to find a technique to combine CMOS and SiGe bipolar onto one wafer that would maximize the performance of both. IBM is the first to build SiGe bipolar using a thin SOI wafer, thereby paving the way to build SiGe bipolar and CMOS on the same thin SOI wafer, maximizing the performance of both the computing and communications functions.

"As the wireless industry continues to grow, new devices will require greater functionalities, performance, and reliability from their components," said Dr. T. C. Chen, VP Science and Technology, IBM Research. "IBM continues to find new methods to improve chips to ensure that the industry can meet consumer demands. The new chip design could be implemented within five years, enabling applications such as video streaming on cell phones."

This project was a collaboration between researchers and developers at the IBM Semiconductor Research and Development Center, IBM Research and IBM Microelectronics Division.

About IBM

IBM is the world's largest information technology company, with 80 years of leadership in helping businesses innovate. Drawing on resources from across IBM and key IBM Business Partners, IBM offers a wide range of services, solutions and technologies that enable customers, large and small, to take full advantage of the new era of e-business on demand. For more information about IBM, visit http://www.ibm.com.