Standard Test Data Format (STDF) Log (TSM)

The Standard Test Data Format (STDF) Log is a standard file format for storing test station information, lot information, and semiconductor test result data.

Note
  • When you retest a DUT, the STDF file includes the PIR, PRR, PTR, and FTR records for every test run, including retests. The WRR, PCR, HBR, and SBR summary records include only the results of the last retest and do not include retested results. The TSR summary record includes the counts of all tests run, including retests.
  • All string fields in the STDF log must use only ASCII characters. If lot settings, such as TestTemperature, and station settings, such as LoadBoardId, use non-ASCII characters, TSM replaces those characters with the question mark character (?) when writing those values to the STDF log.
  • You cannot view the STDF Log in the sequence editor or default operator interface.