Ultra-Low Power Processor Design Using Subthreshold Design Techniques: The Solution to Battery Life with Voltage Scaling - Softcover

Zhai, Bo; Blaauw, David; Sylvester, Dennis

 
9783836497862: Ultra-Low Power Processor Design Using Subthreshold Design Techniques: The Solution to Battery Life with Voltage Scaling
Softcover
ISBN 10: 3836497867 ISBN 13: 9783836497862
Verlag: VDM Verlag Dr. Müller, 2010

Inhaltsangabe

Power consumption is becoming worse with every technology generation. While there has been much research in recent years proposing design methods addressing this issue, one of the most efficient approaches is to reduce supply voltage. In our research, we found the optimal voltage (Vmin) for energy efficiency in CMOS technology. We analyzed the different factors affecting Vmin and find that Vmin usually lies in subthreshold voltage regime. To verify the high energy efficiency of subthreshold operation, we designed and fabricated two subthreshold processors in 0.13um technology, specifically, the Subliminal 1 and Subliminal 2 processors. Measurements confirm 2.60pJ per instruction efficiency for the Subliminal 1. Also, we designed and fabricated the first sub-200mV compact 6-T SRAM in a commercial 0.13um CMOS technology. Silicon measurements show that all 24 dies measured were fully functional and a typical die operates from 1.2V to 193mV. Then to address the lost performance from voltage scaling, we proposed a novel micro-architecture and found that having multiple cores sharing one faster local L1 provides the best energy efficiency.

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Reseña del editor

Power consumption is becoming worse with every technology generation. While there has been much research in recent years proposing design methods addressing this issue, one of the most efficient approaches is to reduce supply voltage. In our research, we found the optimal voltage (Vmin) for energy efficiency in CMOS technology. We analyzed the different factors affecting Vmin and find that Vmin usually lies in subthreshold voltage regime. To verify the high energy efficiency of subthreshold operation, we designed and fabricated two subthreshold processors in 0.13um technology, specifically, the Subliminal 1 and Subliminal 2 processors. Measurements confirm 2.60pJ per instruction efficiency for the Subliminal 1. Also, we designed and fabricated the first sub-200mV compact 6-T SRAM in a commercial 0.13um CMOS technology. Silicon measurements show that all 24 dies measured were fully functional and a typical die operates from 1.2V to 193mV. Then to address the lost performance from voltage scaling, we proposed a novel micro-architecture and found that having multiple cores sharing one faster local L1 provides the best energy efficiency.

Biografía del autor

Bo Zhai received his B.S. degree in microelectronics from Peking University, China, in 2002, his M.S. and Ph.D. in Electrical Engineering from the University of Michigan, in 2004 and 2007. His research focuses on low power VLSI design and array methodology. He is a currently a senior design engineer at Advanced Micro Devices in Austin, TX.

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Verlag
VDM Verlag Dr. Müller
Erscheinungsdatum
2010
Sprache
Englisch
ISBN 10 
3836497867
ISBN 13 
9783836497862
Einband
Tapa blanda
Anzahl der Seiten
184
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