The transfer of test results from testers to analysis tools can be complex, and the king of the standard file formats is STDF.
Originally a Teradyne spec, it has become an industry standard, to be owned by SEMI, and has been remodelled to adapt to different tester companies and users of test results. In addition to the standard v4 spec, new specs exist for scan fail data, memory fail data, custom field and record definitions, and rules for merging results. Enough to keep thousands of engineers busy to maintain and build tools to create, modify, convert, and analyze STDF.
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