An SRAM reliability test macro for fully-automated statistical measurements of Vmin degradation

نویسندگان

  • Tony Tae-Hyoung Kim
  • Wei Zhang
  • Chris H. Kim
چکیده

An SRAM reliability test macro is designed in a 1.2V, 65nm CMOS process for statistical measurements of Vmin degradation. An automated test program efficiently collects statistical Vmin data and reduces test time. The proposed test structure enables Vmin degradation measurements for different SRAM failure modes such as the SNM-limited case and the access-time-limited case. The impact of voltage stress on the time to cell data flip was measured.

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تاریخ انتشار 2009