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Ixiasoft
Visible to Intel only — GUID: esc1458237639083
Ixiasoft
4.9.3.5. Architectural Vulnerability Factor
10% SEFI factors are A typical specification to deflate the raw FIT to that observed in practice. For reference, the last two columns in the Projected SEU FIT by Component Usage report show AVF deflations for a conservative SEFI of 50% and a moderate SEFI of 25%.
SEFI represents a combination of factors. A utilization + ECC factor of 40% and AVF of 25% thus represents a global SEFI factor of 10%, because 0.4 × 0.25 = 0.1. An end-to-end SEFI factor of 10% is typical for a full design.
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