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An LSI system with locked in temperature insensitive state achieved by using body bias technique | IEEE Conference Publication | IEEE Xplore

An LSI system with locked in temperature insensitive state achieved by using body bias technique


Abstract:

Forward-body-bias (FBB) technology can compensate performance fluctuation in LSIs for low-voltage-operation. However, because the FBB characteristics depend on the temper...Show More

Abstract:

Forward-body-bias (FBB) technology can compensate performance fluctuation in LSIs for low-voltage-operation. However, because the FBB characteristics depend on the temperature, the FBB control effect is decreased at high temperatures. A temperature insensitive state (TIS) for supply voltage improves the LSI performance as a solution of the dependence of the FBB characteristics on temperature. When an LSI is operated in a TIS, the performance fluctuation is fixed in a low temperature condition. We propose a TIS locking circuit that achieves TIS operation and reduces performance fluctuation. The circuit achieves this by detecting the threshold voltage and generating a voltage proportional to temperature. Compensating TIS decreased performance fluctuation and power consumption of an LSI to one-third of those before TIS control was applied.
Date of Conference: 23-26 May 2005
Date Added to IEEE Xplore: 25 July 2005
Print ISBN:0-7803-8834-8

ISSN Information:

Conference Location: Kobe

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