OCIN06: Scaling, Power and the Future of CMOS - Mark Horowitz, Stanford
28:59
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3 years ago
In the mid 1980s the power growth that accompanied scaling forced the industry to focus on CMOS technology, and leave nMOS and bipolars for niche applications. Now 20 years later, CMOS technology is facing power issues of its own. After first reviewing the "cause" of the problem, it will become clear that there are no easy solutions this time—no new technology or simple system/circuit change will rescue us. Power, and not number of devices, is now the primary limiter of chip performance, and the need to create power efficient designs is changing how we do design. This talk will review power-optimized design methods and show how power is strongly tied to performance and that variability adversely effects power efficiency. Projecting forward, it shows that unless die size shrinks, in future technologies most of the devices will need to be idle most of the time which has strong ramifications for the both the underlying device and system design.In the mid 1980s the power growth that accompanied scaling forced the industry to focus on CMOS technology, and leave nMOS and bipolars for ...all »In the mid 1980s the power growth that accompanied scaling forced the industry to focus on CMOS technology, and leave nMOS and bipolars for niche applications. Now 20 years later, CMOS technology is facing power issues of its own. After first reviewing the "cause" of the problem, it will become clear that there are no easy solutions this time—no new technology or simple system/circuit change will rescue us. Power, and not number of devices, is now the primary limiter of chip performance, and the need to create power efficient designs is changing how we do design. This talk will review power-optimized design methods and show how power is strongly tied to performance and that variability adversely effects power efficiency. Projecting forward, it shows that unless die size shrinks, in future technologies most of the devices will need to be idle most of the time which has strong ramifications for the both the underlying device and system design.«
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