Download E-books Minimizing and Exploiting Leakage in VLSI Design PDF

By Nikhil Jayakumar

Power intake of VLSI (Very huge Scale built-in) circuits has been turning out to be at an alarmingly speedy cost. This raise in energy intake, coupled with the expanding call for for portable/hand-held electronics, has made strength intake a dominant situation within the layout of VLSI circuits this present day. usually, dynamic (switching) strength has ruled the complete energy intake of an IC. even though, as a result of present scaling developments, leakage energy has now develop into an immense component to the complete energy intake in VLSI circuits. Leakage strength relief is principally vital in portable/hand-held electronics akin to cell-phones and PDAs. This booklet provides strategies geared toward lowering leakage energy in electronic VLSI ICs. the 1st method reduces leakage during the selective use of excessive threshold voltage sleep transistors. the second one approach reduces leakage through employing the optimum opposite physique Bias (RBB) voltage. This ebook additionally indicates readers how you can flip the leakage challenge into a chance, by utilizing sub-threshold logic.

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Four. 6. three evaluating MLVC-VAR with MLVC and RVA .. . . . . . . . . . . four. 7 precis . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . References .. . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 33 33 34 35 36 38 39 forty-one forty-one forty three forty five forty five forty six forty nine fifty two fifty three five The HL technique: A Low-Leakage ASIC layout Methodology.. . . . . . . . five. 1 evaluation . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . five. 2 Philosophy of the HL procedure . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . five. three comparable earlier paintings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . five. four The HL procedure .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . five. four. 1 layout technique .. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . five. four. 2 merits and drawbacks of the HL process .. . . . . . five. five Experimental effects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . five. five. 1 comparability of put and Routed Circuits . . . . . .. . . . . . . . . . . five. 6 utilizing Gate size Biasing rather than VT switch .. . . . . . .. . . . . . . . . . . five. 7 Leakage aid in Domino common sense .. . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . five. eight precis . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . References .. . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . fifty five fifty five fifty six fifty six fifty seven fifty nine 60 sixty two sixty three sixty eight seventy one seventy four seventy six 6 Simultaneous enter Vector keep an eye on and Circuit amendment . . . . . . . . . . . 6. 1 evaluation . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 6. 2 advent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 6. three The instinct in the back of Our strategy . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 6. four comparable past paintings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 6. five Our method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 6. five. 1 The Gate alternative set of rules .. . . . . . . . . . . . . . .. . . . . . . . . . . 6. 6 Experimental effects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 6. 7 precis . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . References .. . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . seventy seven seventy seven seventy seven seventy eight seventy nine eighty eighty two eighty four 89 ninety Contents xvii 7 optimal opposite physique Biasing for Leakage Minimization. . .. . . . . . . . . . . 7. 1 evaluation . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 7. 2 objective and history .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 7. three comparable earlier paintings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 7. four Leakage Monitoring/Self-Adjusting Scheme .. . . . . . . . . . . . .. . . . . . . . . . . 7. four. 1 Leakage present tracking Block (LCM).. . . . .. . . . . . . . . . . 7. four. 2 electronic regulate Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 7. five precis . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . References .. . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . ninety one ninety one ninety two ninety four ninety six ninety six ninety eight ninety nine ninety nine eight half I: Conclusions and destiny instructions . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . one zero one References .. . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 104 half II useful Methodologies for Sub-threshold Circuit layout: Exploiting Leakage via Sub-threshold Circuit layout nine Exploiting Leakage: Sub-threshold Circuit layout .

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