Patent · US Active

Cost-function based routing techniques for reducing crosstalk in electronic package designs

US8751989B1 · kind B1 · utility

4Cited by

7References

21Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Hubert Harrer · Böblingen, DE
Philip S. Honsinger · Poughkeepsie, US
Andreas Huber · Holzgerlingen, DE
Dierk Kaller · Schenefeld, DE
Martin Kindscher · Waldenbuch, DE

Key dates

Filing date	Feb 13, 2013
Grant date	Jun 10, 2014
Priority date	—
Expiry date	Feb 13, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG06F30/394
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A technique for routing signal traces in an electronic package design includes extracting near-end and far-end crosstalk values for traces and vias from a model of the electronic package design. The extracted values are then length-normalized and the normalized values are allocated to coupling factors of a cost-function. A first bus routing for the electronic package design is performed to provide a first routed design. Length segments from the first routed design are extracted and inserted in the cost-function. Crosstalk for each bus net is accumulated using the cost-function. In response to the accumulated crosstalk being less than a determined limit, the first routed design is saved. In response to the accumulated crosstalk being greater than the determined limit, an additional bus routing for the electronic package design is performed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.