Select the Down Arrow to open the Advanced Properties
Source:
New pad dialog ain't so good - slots - Altium Discussion Forums
Altium Designer Notebook
Select the Down Arrow to open the Advanced Properties
Source:
New pad dialog ain't so good - slots - Altium Discussion Forums
Via Stubs and Delay - GUI
This 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 zero length stubs enter 0 in Max Stub, then select Run
Double Clicking Max Stub will set Max Stub = to 1/2 Board's Copper Height.
Store and Recall Buttons may be used to save and recall selected Via Stubs.
Via Propagation Delay Notes:
Select more or less than 1 Via to set the Propagation Delay of all Via Drill Pairs.Note Altium calculates the delay as the proportion of the via the signal path between the start and stop layers, this is not the physical ength of the via. It is the signal path electrical length.
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.
Altium uses 1/2 of the copper height of the starting and stopping layers.
Example:
The Calculated Delay of the Via is 10.917pSec for a signal path length of 58.8mils.
Related Links:
https://resources.altium.com/p/your-complete-guide-stub-analysis
For more inforamation about this script Contact Parts (Randy Clemmons)
That's it !
To disable Auto Generate Supply Nets
Preferences > General > Advanced > Schematic.AutoGenerateSupplyNetsRule > Disable
Restart (Close and Open) Altium
See: https://forum.live.altium.com/#/posts/260254/848610
That's it !
The Design Rule
Note:
Most designs should NOT include Not inAnyDifferentialPair in the Scope as shown.
This is a special case for the board used in this Return Path DRC feature review.
The example Rule shown above is targeting a specific Net Class.
You might want to set the Scope to target All
Gotcha 1
In Gotcha 1 the problem is the GND Via on the left has a signal routed between the flagged via and the GND Via.
Solution 1: Add another Via or Waive the Violation
Other Points of Interest:
Per online help
Exclude small areas of copper from flagging a violation by setting the required value (in sq. mils, 10
by default) of the PCB.Rules.ReturnPathIgnoreArea
option in the Advanced Settings dialog.
That's it !