In past years there have been panel sessions, presentations, and publications that have addressed the role of GaAs digital ICs in this silicon world. An IEEE Ad Hoc committee was formed to discuss this issue. Although the question is far from being fully resolved, there seems t o be general agreement that GaAs ICs will be important for selected applications that require very high speed. GaAs ICs have demonstrated speeds well into the gigahertz range, but have yet to approach the levels of functional complexit…
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