Hi,I am doing a CPWG design.
I wonder whether my ground setting is right or not.
(pic1.png)
I import the gerber file in ads layout. It has two layers, top metal and via(octangle shape).
At the em setup, I map the conductor via in the substrate, setting the hole to the hole(5) layer.
(pic2.png)
Back to the layout, I select all the octangle via and set them to the hole:drawing layer.
Is my setting right??
I find there is a tab Insert ground on the toolbar.
Can I insert a ground pin and don't place via holes??
( pic3.png)
I wonder whether my ground setting is right or not.
(pic1.png)
I import the gerber file in ads layout. It has two layers, top metal and via(octangle shape).
At the em setup, I map the conductor via in the substrate, setting the hole to the hole(5) layer.
(pic2.png)
Back to the layout, I select all the octangle via and set them to the hole:drawing layer.
Is my setting right??
I find there is a tab Insert ground on the toolbar.
Can I insert a ground pin and don't place via holes??
( pic3.png)
> (pic1.png)
Placing ground symbols in the layout will not have any effect. You better create a physical connection from the side grounds to the bottom ground plane (i.e. draw physical via).
> At the em setup, I map the conductor via in the substrate, setting the hole to the hole(5) layer.
> (pic2.png)
>
> Back to the layout, I select all the octangle via and set them to the hole:drawing layer.
>
> Is my setting right??
Yes, this modelling approach looks right. You can double check in the 3D EM preview to make sure the vias are indeed included in the EM model.
For the vertical line (from north side) there is no via fence over quite some length, so the side grounds can be at rather different potential than the bottom ground. But that is what you have in layout - and Momentum will show if this is causing issues or not.
> I find there is a tab Insert ground on the toolbar.
> Can I insert a ground pin and don't place via holes??
No. For Momentum you need physical (drawn) vias.