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February 18th, 2004
NEC spotlights two promising designs
In papers at the International Solid State Circuits Conference here this week, NEC Corporation showed to novel on-chip technologies that could, if they prove out, make major changes in the industry. The more dramatic of the two is called a nanobridge. Closely related to the antifuse used in some Actel and all QuickLogic FPGAs, the nanobridge is a structure in which application of a programming voltage causes a low-resistance conduction path to form through a dielectric material, shorting together two electrodes. But unlike the antifuse, which is one-time programmable, NEC's structure is reprogrammable.
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