Method and system to evaluate signal line spacing

Details Method and system to evaluate signal line spacing Method and system to evaluate signal line spacing

2006-08-29

2006-08-29

Dinh, Paul (Department: 2825)

Computer-aided design and analysis of circuits and semiconductor

Nanotechnology related integrated circuit design

Reexamination Certificate

active

07100135

ABSTRACT:
A system to evaluate a distance between polyline segments includes identification of a first polyline and a second polyline associated with a differential signal, determination of whether a distance between a segment of the first polyline and a segment of the second polyline is within a first tolerance, and, if the distance is not within the first tolerance, determining whether the distance is within a second tolerance. If the distance is not within the first tolerance and is within the second tolerance, it is determined whether the length of the segment of the first polyline is less than a first threshold. If the distance is not within the first tolerance and is within the second tolerance, and if the length of the segment of the first polyline is less than the first threshold, it is indicated that the first polyline and the second polyline are sufficiently spaced. If the distance is not within the second tolerance or if the length of the segment of the first polyline is greater than the first threshold, it is determined whether the segments are located near a device pin, and, if the segments are not located near a device pin, it is indicated that the first polyline and the second polyline are not sufficiently spaced.

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