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IBM Announces Worlds Fastest Silicon-Based Transistor

IBM today announced it has built the world’s fastest silicon-based transistor, a basic building block used to make microchips.

IBM expects the new transistor will drive communications chips to speeds of 100GHz within two years — five times faster and four years sooner than recently-announced competitive approaches.

The transistor uses a modified design and IBM’s proven silicon germanium (SiGe) technology to reach speeds of 210 GigaHertz (GHz) while drawing just a milliamp of electrical current. This represents an 80 percent performance improvement and a 50 percent reduction in power consumption over current designs.

“Just as aircraft were once believed incapable of breaking an imaginary ‘sound barrier’, silicon-based transistors were once thought incapable of breaking a 200GHz speed barrier,” said Bernard Meyerson, IBM Fellow and vice president, IBM Communications Research and Development Center. “Makers of high performance electronics like networking gear are no longer forced to use chips made of exotic and expensive materials to reach these speeds. Silicon’s future is safe as the preferred medium for chip-making.”

Top-tier communications equipment makers are already working with the new IBM technology to help build faster, more efficient products to increase the speed of today’s networks.

“AMCC has proven that IBM’s current SiGe process can achieve the critical speeds necessary for high-speed next generation optical networks,” said Oswin Schreiber, senior product marketing manager, Applied Micro Circuits Corporation. “We believe that IBM’s next generation of SiGe can enable customers like AMCC to deliver devices that perform at even higher data rates to meet future networking requirements.”

Transistor speeds are largely determined by how quickly electricity passes through them. This is dependent on the material the transistor is made of and the distance electricity must travel through it. Standard transistors are made of ordinary silicon. In 1989, IBM introduced an improvement to the basic silicon material by adding germanium to greatly speed the electrical flow, improving performance and reducing power consumption. With this latest achievement, IBM is combining the use of the SiGe material with an improved transistor design that shortens the electrical path to speed up the device.

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