Design and Measured Results for Born-on-date Timers

  • Authors:
    Shantanu Chakrabartty (Washington Univ.), Liang Zhou (Washington Univ.)
    Publication ID:
    Publication Type:
    Deliverable Report
    Received Date:
    Last Edit Date:
    2640.001 (Washington University in St. Louis)

Research Report Highlight

An array of timers has been used to provide born-on-date authentication. After timer initialization, readout voltages of the array of timers has been explored as a function of fabrication process variations and evaluated for authentication.


In this deliverable report, we present a design of an array of timers that could be used for born-on-date authentication. The array can be configured and initialized using on-chip charge-pumps and the output of each element of the timer array could be selected and read-out. We present measurement results from a prototype timer array that were fabricated on 0.5um process. The objective is to: (a) verify the functionality of the timer array; (b) explore the statistical behavior of the timer resulted from variations and mismatch of process and (c) extract more robust result by from statistical results.

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