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Device-Level PBTI-induced Timing Jitter Increase in Circuit-Speed Random Logic Operation



Jiwu Lu, Canute I. Vaz, Jason P. Campbell, Jason T. Ryan, Kin P. Cheung, Guangfan Jiao, Gennadi Bersuker, Chadwin D. Young


We utilize eye-diagram measurements of timing jitter to investigate the impact of PBTI in devices subject to DC as well as ring oscillator (RO) and pseudo-random binary sequence (PRBS) stress waveforms. We observe that RO measurements miss the relevant random timing jitter increases which are well captured using PRBS measurements. We also observe that DC, RO, and PRBS stresses all introduce similar increases in random timing jitter. This calls into question the widely assumed degradation headroom between DC and AC measurements. This work collectively provides a snapshot of PBTI degradation in “real” circuit environments. It provides a path for more accurate and realistic circuit lifetime estimations and circuit timing budget criteria.
Proceedings Title
IEEE Symposia on VLSI Technology and Circuits
Conference Dates
June 9-13, 2014
Conference Location
Honolulu, HI


Positive Bias Temperature Bias (PBTI), Pseudo-Random Binary Sequency (PRBS), Eye diagram, Jitter


Lu, J. , Vaz, C. , Campbell, J. , Ryan, J. , Cheung, K. , Jiao, G. , Bersuker, G. and D., C. (2014), Device-Level PBTI-induced Timing Jitter Increase in Circuit-Speed Random Logic Operation, IEEE Symposia on VLSI Technology and Circuits, Honolulu, HI, [online], (Accessed April 18, 2024)
Created July 31, 2014, Updated February 19, 2017