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Comprehensive Analysis of Sequential and Combinational Soft Errors in an Embedded Processor | IEEE Journals & Magazine | IEEE Xplore

Comprehensive Analysis of Sequential and Combinational Soft Errors in an Embedded Processor


Abstract:

Radiation-induced soft errors have become a key challenge in advanced commercial electronic components and systems. We present the results of a soft error rate (SER) anal...Show More

Abstract:

Radiation-induced soft errors have become a key challenge in advanced commercial electronic components and systems. We present the results of a soft error rate (SER) analysis of an embedded processor. Our SER analysis platform accurately models generation, propagation, and masking effects starting from a technology response model derived using TCAD simulations at the device level all the way to application masking. The platform employs a combination of accurate models at the device level, analytical error propagation at gate level, and fault emulation at the architecture/application level to provide the detailed contribution of each component (flip-flops, combinational gates, and SRAMs) to the overall SER. At each stage in the modeling hierarchy, an appropriate level of abstraction is used to propagate the effect of errors to the next higher level. Unlike previous studies which are based on very simple test chips, analyzing the entire processor gives more insight into the relative contributions of combinational and sequential SER. The results of this analysis can assist circuit designers to adopt effective hardening techniques to reduce the overall SER while meeting the required power and performance constraints.
Page(s): 1586 - 1599
Date of Publication: 14 April 2015

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