Bidirectional body bias regulation

Details Bidirectional body bias regulation Bidirectional body bias regulation

2006-01-03

2008-07-15

Zweizig, Jeffrey S (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

Reexamination Certificate

active

07400186

ABSTRACT:
A system may include detection of a direction of transistor body current flow, and control of a regulator transistor to regulate a transistor body voltage based on the detected direction. In some aspects, a first regulator transistor is controlled if the direction of current flow is into a transistor body and a second regulator transistor is controlled if the direction of current flow is out of the transistor body.

REFERENCES:
patent: 6784722 (2004-08-01), Tang et al.
patent: 6917237 (2005-07-01), Tschanz et al.
patent: 7138851 (2006-11-01), Sumita et al.
Tschanz, James W., “Adaptive Body Bias for Reducing Impacts of Die-to-Die and Within-Die Parameter Variations on Microprocessor Frequency and Leakage” , IEEE Journal of Solid-State Circuits, vol. 37, No. 11, Nov. 2002, pp. 1396-1402.
“ISSCC 2002 / Session 16 / High Speed I/O / 16.4”, 3pgs.

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