Papers by Gokul Raj Ganesan
2009 Design, Automation & Test in Europe Conference & Exhibition, 2009
NBTI (Negative Bias Temperature Instability) has emerged as the dominant PMOS device failure mech... more NBTI (Negative Bias Temperature Instability) has emerged as the dominant PMOS device failure mechanism for sub-100nm VLSI designs. There is little research to quantify its impact on skew of clock trees. This paper demonstrates a mathematical framework to compute the impact of NBTI on gating-enabled clock tree considering their workload dependent temperature variation. Circuit design techniques are proposed to deal with NBTI induced clock skew by achieving balance in NBTI degradation of clock devices. Our technique achieves up-to 70% reduction in clock skew degradation with miniscule (<0.1%) power and area penalty.
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Papers by Gokul Raj Ganesan