Adaptive body bias for reducing impacts of die-to-die and within-die parameter variations on microprocessor frequency and leakage

James Tschanz, J. Kao, S. Narendra, Raj Nair, D.A. Antoniadis, Anantha P. Chandrakasan, Vivek De

2002 IEEE International Solid-State Circuits Conference. Digest of Technical Papers (Cat. No.02CH37315) · 2003 · 87 citations · 3 references

Concepts

Abstract

Measurements on a 150 nm CMOS test chip show that on-chip bidirectional adaptive body biasing compensates effectively for die-to-die parameter variation to meet both frequency and leakage requirements. An enhancement of this technique to correct for within-die variations triples the accepted die count in the highest frequency bin.

References

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