Journal
MRS BULLETIN
Volume 28, Issue 2, Pages 126-130Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1557/mrs2003.40
Keywords
microelectronics; single-event upsets; soft errors
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Historically-radiation-induced corruption of data in high-speed complementary metal oxide semiconductor designs has been limited to on-board static random-access memory in various memory caches. Successive generations of scaling, however, have resulted in capacitance reductions in key logic circuits, increasing their vulnerability to these soft errors.' Charge delivered by radiation events now carries a substantial probability of inducing upsets, not only in bistable elements, but in logic evaluation circuits as well. This article introduces the reader to common logic-circuit topologies in high-speed microprocessors', radiation circuit response mechanisms that can compromise logic evaluation integrity; and existing techniques that mitigate this exposure.
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