Method of modeling circuit cells for powergrid analysis

Details Method of modeling circuit cells for powergrid analysis Method of modeling circuit cells for powergrid analysis

2007-10-16

2007-10-16

Rodriguez, Paul (Department: 2123)

Data processing: structural design, modeling, simulation, and em

Simulating electronic device or electrical system

Circuit simulation

C703S002000, C716S030000, C716S030000, C716S030000, C716S030000, C716S030000

Reexamination Certificate

active

10876218

ABSTRACT:
Techniques for modeling a circuit cell of a microprocessor or other integrated circuit for hierarchical powergrid analysis are disclosed herein. Distribution coefficients, used to distribute node voltages and capacitances to respective parts of the cell, are determined for each internal node of the cell. Current distribution coefficients may also be determined for each resistor in the cell. Using the distribution coefficients, internal cell capacitances are modeled as port capacitors. Resistive elements are modeled as a resistor network having no internal nodes. Transistor elements are modeled as port current sources. Such a model permits back calculation of internal node voltages and currents.

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Qian et al., “Hierarchical Random-walk Algorithms for Power Grid Analysis”, Proceedings of the ASP-DAC 2004, Design Automation Conference, Asia and South Pacific, pp. 499-504, Jan. 27-30, 2004.

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