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Design of Resonant Global Clock Distributions
San Jose, California October 13-October 15
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/ICCD.2003.12409022003 IEEE International Conference on ...
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Steven C. Chan, Columbia University, New York, NY
Kenneth L. Shepard, Columbia University, New York, NY
Phillip J. Restle, IBM T.J Watson Research Center, NY
This paper presents a new approach to global clock distribution in which traditional tree-driven grids are augmented with on-chip inductors to resonate the clock capacitance at the fundamental frequency of the clock node. Rather than being dissipated as heat, the energy of the fundamental resonates between electric and magnetic forms. The clock drivers must only provide the energy necessaryto overcomelosses. As a result, power reductionof over 80% is possible depending on the Q of the resonant system. Clock latency is also improved because the effective capacitance of the grid is lower, and fewer buffer stages are necessaryto drive the grid. Skew and jitter reductions come about because of this reduced buffer latency.
Citation:
Steven C. Chan, Kenneth L. Shepard, Phillip J. Restle, "Design of Resonant Global Clock Distributions," iccd, pp.248, 2003 IEEE International Conference on Computer Design (ICCD'03), 2003
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