Failure analysis system, fatal failure extraction method and recording medium

摘要

An EWS for data analysis automatically performs automatic fatal failure extract processing on the basis of FBM information accumulated in a computer for a tester. In the automatic fatal failure extract processing, X-line repair judgment processing and Y-line repair judgment processing are continuously performed so that the X-line repair processing is performed in consideration of failures in a Y-line direction, and the Y-line repair judgment processing is performed in consideration of failures in an X-line direction. Further, the failures in the Y-line and X-line directions are taken into consideration from maximum ability decided by Y-line substitutability and X-line substitutability to zero. Thus provided is a failure analysis system capable of automatically investigating the cause for fatal failures.