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Technology Stocks : Kopin Corp. (KOPN)

KOPN 2.325

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To: LLLefty who wrote ()	10/5/1998 6:40:00 PM
From: kinkblot	Read Replies (1) of 1820

Extending the Boundaries of High-Performance Semiconductors (NT): nortel.com This article from 'The Nortel Edge' magazine, 1st Quarter 1998 describes their development programs in high-performance semiconductors, including both SiGe and GaAs. Nortel is one of the partner companies "engaged in IBM's leading-edge SiGe development program." Note that ICs based on GaAs HBT technology are being used in tranceivers for their 10-Gbit/s SONET/SDH fiber-optic networks. Excerpts on performance goals wrt transistor frequencies: ---------------------------------------- \| SILICON TECHNOLOGY \| . SiGe-based devices hold the promise of transporting information across networks at speeds previously considered to be beyond the reach of silicon technology. By exploiting SiGe, Nortel aims to boost the silicon transistor transit frequency (Ft) - a key benchmark for describing microcircuit performance - to 50 gigahertz (GHz), more than double the current speed of its most advanced bi-polar silicon transistors. ... \| III-V COMPOUND SEMICONDUCTORS \| . While silicon microcircuits can offer design and cost advantages over devices made from III-V materials, it is unlikely they will ever approach the performance capabilities of state-of-the-art compound semiconductors. Already, Nortel has developed and deployed GaAs devices with Ft performance ratings of 75 GHz - fully three times faster than current NT25 bipolar silicon microchips. One of the newest applications for GaAs technology is a series of custom GaAs heterojunction bipolar transistor (HBT) integrated circuits developed for high-speed, 10-gigabit-per-second (Gbit/s) transceivers in Nortel's S/DMS TransportNode OC-192/TN-64X fiber transport system - the world's first 10-Gbit/s SONET/SDH transport platform. Nortel currently enjoys a commanding lead in this market, which is aggressively demanding exponential increases in bandwidth. . Having successfully demonstrated high-performance GaAs microcircuits operating at transit frequency (Ft) rates of 75 GHz, Nortel is now working to extend HBT performance beyond 100 GHz Ft for next-generation fiber transport and broadband wireless applications, and to develop a power process that addresses the need for cost-effective high-efficiency wireless power amplifiers. ... ---------------------------------------- S/DMS TransportNode OC-192: nortel.com Northern Telecom is listed by Kopin as a customer for their HBT device wafers... WT

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