How to change many placed vias all at once?

[gbugh]

1. How does a person remove all unused via annular rings on inner layers. Right now I only see how to do it one via at a time.
2. When the board goes to fabrication, is the PCB design not able to be pooled with others as well if the vias don’t have annular rings on inner layers?
3. Regarding blind or buried vias, is the fab cost usually the same regardless of whether vias all go through or if many are blind or buried?
4. When all vias are placed, is there a way to convert all vias that can change to either blind or buried?

[craftyjon]

@gbugh

How does a person remove all unused via annular rings on inner layers. Right now I only see how to do it one via at a time.

Tools > Remove Unused Pads. By default it will operate on all vias or pads, not just selected ones.

@gbugh

When the board goes to fabrication, is the PCB design not able to be pooled with others as well if the vias don’t have annular rings on inner layers?

No, it doesn’t matter.

@gbugh

Regarding blind or buried vias, is the fab cost usually the same regardless of whether vias all go through or if many are blind or buried?

If you use any blind/buried, there is normally a fixed cost increase vs. having only through vias (in my experience). The cost does not change based on how many blind/buried vias you have, as long as you have more than zero.

@gbugh

When all vias are placed, is there a way to convert all vias that can change to either blind or buried?

I am not sure I think doing this is a good idea, but maybe there are specific reasons you need to. But, set the selection filter to only Vias, select all, then use the properties panel to change the type to Blind/Buried and set your desired start/end layers.

[gbugh]

@craftyjon

I am not sure I think doing this is a good idea, but maybe there are specific reasons you need to. But, set the selection filter to only Vias, select all, then use the properties panel to change the type to Blind/Buried and set your desired start/end layers.

Thanks for helpful answers! Is it not a good idea because of cost or other reasons?

[craftyjon]

@gbugh

Thanks for helpful answers! Is it not a good idea because of cost or other reasons?

Normally when you use blind/buried vias you need them in a specific area of the board. Converting all vias on the board to blind/buried usually wouldn’t make sense.

[gbugh]

When you say: “set the selection filter to only Vias”, where is this selection filter, under what menu category? I need the back of the board to be a solid ground plane with zero RF leakage from through-hole via gaps. Electromagnetic energy can escape through gaps smaller than a quarter wavelength primarily due to diffraction effects and Huygens’ principle which allow for partial transmission even when classical expectations would suggest otherwise.

[marekr]

@gbugh

When you say: “set the selection filter to only Vias”, where is this selection filter, under what menu category?

[gbugh]

After setting the selection filter to only vias, then if for example I go to an inner PWR plane and select all vias to make them buried, it still selects ALL vias and not just the ones connected to the PWR plane, so then anything I change affects the other vias I didn’t want to change and then I get many connected on one layer only errors.

[craftyjon]

Well, you said you wanted to change all vias, not just some vias. The selection filter doesn’t care what net the vias are on.

There is no “1-click” way to make only the vias on a certain net into blind/buried vias. So, you have to use various other selection tools like drag-selecting to select the vias you want to change, then you can change them.

[gbugh]

ok, I understand, thanks ;~)