Industrial Evaluation of DRAM SIMM Tests

  • Authors:
  • Ad J. van de Goor;Alexander Paalvast

  • Affiliations:
  • -;-

  • Venue:
  • ITC '00 Proceedings of the 2000 IEEE International Test Conference
  • Year:
  • 2000

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Abstract

This paper describes the results of testing 50 single inlinememory modules (SIMMs), each containing 16 16MbitDRAM chips (DUTs); 39 SIMMs failed, and of the 800DUTs, 116 failed. In total 54 different test algorithms havebeen applied, using up to 168 different stress combinationsfor each test. The results show that GAL9R is the best test.Furthermore, it is shown that burst mode tests detect a completelydifferent class of faults as compared with traditionalword mode tests, and that tests with address scrambling enableddetect more faults.