Blind/Buried via runs
Blind and buried vias require additional manufacturing ‘runs’ as part of a sequential buildup.
If your design requires Blind or Buried vias then use this option to add them.
Adding Blind or Buried via runs
Select this option by clicking on the up arrow or by clicking on the ‘Add via’ button in the buildup section as below.
A popup will open where you can define on which layer the via starts and ends and click on the ‘Add’ button.
This will then update the image in the Buildup section showing the blind or buried via run added.
To add more runs click on the up arrow or the ‘Add via’ button again.
Removing Blind Buried via runs
If you wish to remove a run click on the down arrow or the ‘Remove via’ button and select which run to select from the popup and click on the ‘Remove’ button.
The run will be removed from the Buildup section.
- A Via must always go through an even number of copper layers.
- Vias cannot end at the top side of a core.
- Vias cannot start at the bottom side of a core.
- Blind or Buried Vias cannot start or end inside or at the end of another Blind/Buried via unless the one is completely enclosed within the other (this will add extra cost as an extra press cycle is required).