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2010
IEEE

Novel Vth Hopping Techniques for Aggressive Runtime Leakage Contro

8 years 8 days ago
Novel Vth Hopping Techniques for Aggressive Runtime Leakage Contro
The continuous increase of leakage power consumption in deep sub-micro technologies necessitates more aggressive leakage control. Runtime leakage control (RTLC) is effective, since runtime circuits generally have significant amount of idleness. However, current RTLC techniques are only used when circuits have long idleness, rendering the techniques less profitable. The reason is due to the large energy and delay overhead when performing RTLC mode transition. We propose two novel techniques, workload-adaptive Vth hopping (WAVTH) and hierarchical Vth hopping (HIVTH), to tackle the overhead problems and enable aggressive runtime leakage control. Experimental results show 19.2% average improvement on leakage saving with WAVTH and HIVTH over basic Vth hopping. The optimum design points of these two techniques are determined through accurate modeling.
Hao Xu, Wen-Ben Jone, Ranga Vemuri
Added 18 Jun 2011
Updated 19 Jun 2011
Type Conference
Year 2010
Where VLSID
Authors Hao Xu, Wen-Ben Jone, Ranga Vemuri
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