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US 7,454,719 B2Granted
System and method for calculating effective capacitance for timing analysis
AssigneeNEC Electronics America, Inc.
InventorWolfgang Roethig
Life of this patent
Estimating the term…
Abstract
A method involves: accessing data representing an interconnect model, where the interconnect model includes a driving point node and is not a lumped capacitance model; calculating a value of an effective capacitance of the interconnect model to be inversely proportional to a voltage at the driving point node of the interconnect model; and storing the value of the effective capacitance. Such a method can be used to calculate effective capacitance of the interconnect model using analytical techniques.
Claims6
A method, comprising:
- accessing data representing an interconnect model, wherein the interconnect model includes a driving point node;
- reducing the interconnect model to a lumped capacitance model consisting of an effective capacitance, wherein said reducing comprises:
- calculating the effective capacitance by setting a voltage across the effective capacitance equal to a voltage at the driving point node of the interconnect model;
- and
- storing a value representing the effective capacitance.
2 more elements
Dependencies are inferred from the claim text.