Dynamically adjustable decoupling capacitance to reduce gate...

Details Dynamically adjustable decoupling capacitance to reduce gate... Dynamically adjustable decoupling capacitance to reduce gate...

2005-09-27

2005-09-27

Wells, Kenneth B. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific input to output function

By integrating

C327S379000

Reexamination Certificate

active

06949967

ABSTRACT:
A new method to reduce switching noise on an integrated circuit device is achieved. The method comprises providing an integrated circuit device comprising a power supply, a ground, and a plurality of switchable capacitors. Each switchable capacitor is connected from the power supply to ground. The operating mode of the integrated circuit device is tracked. An optimal capacitance value is selected based on the operating mode. A set of switchable capacitors from the plurality of switchable capacitors is selected to thereby connect the optimal capacitance value from the power supply to ground.

REFERENCES:
patent: 5506457 (1996-04-01), Krauter et al.
patent: 5789964 (1998-08-01), Voldman
patent: 6307250 (2001-10-01), Krauter et al.
patent: 6392944 (2002-05-01), Kono
patent: 6704680 (2004-03-01), Amick et al.
patent: 2002/0081832 (2002-06-01), Bernstein et al.
Article “Interconnect and Circuit Modeling Techniques for Full-Chip Power Supply Noise Analysis,” by Chen et al., in IEEE Trans. on Components, Packaging, and Manuf. Tech.-Part B, vol. 21, No. 3, Aug. 1998, pp. 209-215.

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