Verifying proximity of ground vias to signal vias in an...

Details Verifying proximity of ground vias to signal vias in an... Verifying proximity of ground vias to signal vias in an...

2005-07-26

2005-07-26

Whitmore, Stacy A. (Department: 2825)

Computer-aided design and analysis of circuits and semiconductor

Nanotechnology related integrated circuit design

C716S030000

Reexamination Certificate

active

06922822

ABSTRACT:
Techniques are disclosed for verifying the proximity of ground vias to signal vias in an integrated circuit package design. A package designer creates the package design using a package design tool. A proximity verifier verifies that there is a ground via within a predetermined threshold distance of each specified signal via in the package design. The proximity verifier may notify the package designer of any signal vias which are not sufficiently close to ground vias, such as by providing visual indications of such signal vias in a graphical representation of the package design displayed on a display monitor. In response, the package designer may modify the package model to ensure that all signal vias are sufficiently close to ground vias. The proximity verifier may be implemented as a design rule which may be executed automatically and in real-time by the package design tool.

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