Lookup table-based adaptive body biasing of multiple macros = 룩업 테이블을 이용한 다중 매크로 블록의 어댑티브 바디 바이어싱

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A reduced supply voltage must be accompanied by a reduced threshold voltage, which makes this approach susceptible to process variation in transistor parameters, as well as resulting in increased subthreshold leakage. We propose a new adaptive body biasing scheme, based on a lookup table for independent control of multiple functional blocks on a chip, which controls leakage and also compensates for process variation at the block level. An adaptive body bias is applied to blocks in active mode and a large reverse body bias is applied to blocks in standby mode. This is achieved by a central body bias controller, which has a low overhead in terms of area, and standby to active transition time. The problem of optimizing the required set of bias voltages is formulated and solved. A design methodology for semicustom design using standard-cell elements is developed and verified with benchmark circuits.
Advisors
Shin, Young-sooresearcher신영수researcher
Description
한국과학기술원 : 전기및전자공학전공,
Publisher
한국과학기술원
Issue Date
2008
Identifier
297146/325007  / 020053604
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 전기및전자공학전공, 2008.2, [ vii, 54 p. ]

Keywords

body bias; leakage current; 바디 바이어스; 누설전류; body bias; leakage current; 바디 바이어스; 누설전류

URI
http://hdl.handle.net/10203/38529
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=297146&flag=dissertation
Appears in Collection
EE-Theses_Master(석사논문)
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