I.B.M. researchers increase speed of silicon transistors

Article Abstract:

Researchers at IBM have pushed the speed limit for silicon based transistors to 75 billion cycles per second, or almost double the previous high. The achievement is significant because many analysts felt that silicon would be left behind with the discovery of new materials such as gallium arsenide that provide higher speeds. The breakthrough pushes the potential switching speed of a computer to new levels, and the silicon itself will no longer be the limiting factor to computer speed. The experimental transistor is known as a heterojunction bipolar transistor. It is made from an alloy of silicon with a small quantity of the element germanium. The chips have the advantage of being easier to make than processes using other materials, and most of the same techniques used for current chips can be applied.

Semiconductor chips, Integrated circuits, Transistors, Transistor, Enhancements

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Bell Labs laser said to be world's tiniest; a possible use; fast computers run by beams of light

Article Abstract:

AT&T Bell Laboratory scientists announced on Thursday, Nov 7, 1991, at the 1992 annual meeting of the Optical Society of America that they had created the world's smallest laser. This development might be lead to the manufacture of a new series of very fast computers, which would be controlled by light beams. Other developments might include creating sensitive artificial vision systems that could take over the functions of the human retina. The new lasers can be assembled into arrays in the same way used to make semiconductor chips. The new lasers are created by alternating one or more layers of indium gallium arsenide with layers of indium gallium arsenide phosphide. Researchers say they will now begin creating photon 'wires' to direct the light beams emitted by the lasers.

Commercial physical research, Conferences, meetings and seminars, Microcomputers, Design and construction, Lasers, Photonics, Optoelectronic devices, Laser, Lucent Technologies Inc. Bell Laboratories, Microcomputer, Miniaturization, Optical Society of America

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I.B.M. joined by Motorola in semiconductor research

Article Abstract:

IBM and Motorola agree to participate in a joint research venture to develop synchrotron X-ray lithography technology for the production of semiconductors and thereby head off Japanese domination of the semiconductor production equipment industry. The site of the x-ray research will be IBM's Advanced Semiconductor Technology Center in New York State. IBM plans on spending up to $1 billion to break beyond the current limits of semiconductor etching techniques. Chips manufactured with x-ray lithography could hold 16 times as much information as the highest capacity chip today. Motorola will contribute an undisclosed amount of money to the research effort, and a team of Motorola engineers will join the IBM research staff.

Special industry machinery, not elsewhere classified, Contracts, Semiconductor production equipment industry, Semiconductor production equipment, Motorola Inc., MOT, X-ray lithography

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