I.K. Pour, D.J. Krajnovich, et al.
SPIE Optical Materials for High Average Power Lasers 1992
A circuit for on-chip monitoring bias-temperature instability (BTI) degradation of CMOS devices, which distinguishes between NBTI and PBTI, is described. Intended for long-term monitoring of field-installed systems, the measurements are performed entirely on chip, and reported through digital scan chains. The circuit measures the frequency degradation of conventional inverters, and separately measures the degradation due only to NBTI and only to PBTI. The measurement time is very short compared to off-chip measurements. The operation of the circuit is demonstrated with examples from polysilicon gate technology and high-k/metal-gate technology. © 2013 Elsevier Ltd. All rights reserved.
I.K. Pour, D.J. Krajnovich, et al.
SPIE Optical Materials for High Average Power Lasers 1992
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