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Reliability Study of Combinational Circuits
 In EURODAC
, 1994
"... An exact, practical implementation of reliability calculation for combinational circuits can be based on a hierarchical decomposition of the circuit into manageable subunits, and construction of exact summary tables for each subunit. For a simple example of voting logic, this exact reliability a ..."
Abstract

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An exact, practical implementation of reliability calculation for combinational circuits can be based on a hierarchical decomposition of the circuit into manageable subunits, and construction of exact summary tables for each subunit. For a simple example of voting logic, this exact reliability analysis reaffirms that the reliability of the individual voter inputs is as important as the voter reliability. 1 Introduction Reliability analysis of a circuit estimates the likelihood that a whole system operates correctly after a given period of time. An attractive technique of improving this reliability is through the use of hardware redundancy which ensures that correct outputs are produced even when some faults are present in the circuit structure. In these circumstances, redundancy masks faults so that many different fault combinations are not visible at the circuit's outputs. To obtain a precise estimate of the reliability of circuits, it is desirable to model circuits at the transi...