Via Stubs and Propagation Delay Script

Via Stubs and Delay - GUI

The Script can find Via Stubs and Set Via Propagation Delay times.

Enter the Max Stub length allowed in mils. 

Select Top or Bottom or both to find and select stubs.

Then select Run

For strict zero length stubs enter 0 in Max Stub, then select Run

Easter Egg: Double Click Max Stub to set Max Stub = to 1/2 Board Height.

Via Propagation Delay Notes:

Select more or less than 1 Via to set the Propagation Delay of all Via Drill Pairs.
Select only one Via to set the Propagation Delay of the Via's Drill Pair.

Then click the Delay Button.

Altium calculates the delay as the proportion of the via the signal path between the start and stop layers versus the total length of the via. 

Example: A board with a total thickness of 61.8mil, including a total of 1mil of solder mask and 2mil outer Cu thickness, where the electrical via length is calculated as Total - Soldermask - 1/2 top Cu - 1/2 bot Cu = 58.8mil.

Example:

Delay of the Selected Via = 10.917pSec and the signal path length = 58.8mils.

Contact me at Parts if you would like learn more about this script.

Randy Clemmons

That's it !