Stats

Locked Locked
Replies 6
Subscribers 167
Views 20857
Members are here 0

How to measure Net Etch Length considering vias in vertical direction using Allegro？

momo1982 over 10 years ago

Hi all,

I found that Allegro can't measure net length with via height between the routing layers, which is illustrated in following figures. These two connections actually have a difference of (board thickness * 2), but allegro seems just measure the length in horizontal directions, ignoring the height coming from via.

Total etch length 316 mil here:

Total etch length still 316 mil here. But actually there is a (2*Board Thickness) here which should be considered.

Is there any method in allegro that we can get the REAL net length including the trace length, and via height between the routing layers?

Thanks so much!

Parents

redwire over 10 years ago

I believe that option is in the user setup menu as one of the options not in constraint manager iirc.
Cancel
Vote Up 0 Vote Down

Cancel

Reply

redwire over 10 years ago

I believe that option is in the user setup menu as one of the options not in constraint manager iirc.
Cancel
Vote Up 0 Vote Down

Cancel

Children

No Data

Cadence Guidelines

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.