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US 7,013,440 B2Granted
Apparatus and methods for interconnect characterization in electronic circuitry
AssigneeNascentric, Inc.
InventorJohn F. Croix
Life of this patent
Estimating the term…
Abstract
A system for characterizing an interconnect in an electrical circuit includes a computer. The computer calculates a set of terms, the set of terms derived from (i) a characteristic pole and a characteristic residue of the interconnect and (ii) a fixed time step used to describe a stimulus applied to the interconnect. The computer calculates a response of the interconnect to the stimulus by calculating a partial sum derived from the set of terms.
Claims20
A system comprising a computer configured to:
- generate a plurality of partial sums corresponding to a first time point of a response on an interconnect, wherein the response is caused by a stimulus input to an interconnect model corresponding to the interconnect, wherein the plurality of partial sums are a function of at least:
- one or more poles and residues of the interconnect and a fixed time step used to describe the stimulus;
- wherein at least a first partial sum of the plurality of partial sums corresponding to the first time point is also a function of the first partial sum calculated for a second time point that precedes the first time point;
- and
- generate the response at the first time point as a sum of the plurality of partial sums corresponding to the first time point.
2 more elements
A computer readable medium storing a plurality of instructions which, when executed, implement a method comprising:
- generating a plurality of partial sums corresponding to a first time point of a response on an interconnect, wherein the response is caused by a stimulus input to an interconnect model corresponding to the interconnect, wherein the plurality of partial sums are a function of at least:
- one or more poles and residues of the interconnect and a fixed time step used to describe the stimulus;
- wherein at least a first partial sum of the plurality of partial sums corresponding to the first time point is also a function of the first partial sum calculated for a second time point that precedes the first time point;
- and
- generating the response at the first time point as a sum of the plurality of partial sums corresponding to the first time point.
2 more elements
A method comprising:
- generating a plurality of partial sums corresponding to a first time point of a response on an interconnect, wherein the response is caused by a stimulus input to an interconnect model corresponding to the interconnect, wherein the plurality of partial sums are a function of at least:
- one or more poles and residues of the interconnect and a fixed time step used to describe the stimulus;
- wherein at least a first partial sum of the plurality of partial sums corresponding to the first time point is also a function of the first partial sum calculated for a second time point that precedes the first time point;
- and
- generating the response at the first time point as a sum of the plurality of partial sums corresponding to the first time point.
2 more elements
Dependencies are inferred from the claim text.