xzsawq21
Junior Member level 1
Hello
I have drawn a 6-layers layout in ADS.
I should have a ground plane and many ground vias on the top layer.
I have inserted a ground plane with 20mils clearance as shown below:
![2.JPG 2.JPG](https://www.edaboard.com/data/attachments/76/76104-c30522b1fb3acf02a5bf8ec1182c7b0a.jpg)
![3.JPG 3.JPG](https://www.edaboard.com/data/attachments/76/76105-d067f15803e7cfb9ac9805d7d36e5578.jpg)
![1.JPG 1.JPG](https://www.edaboard.com/data/attachments/76/76103-b37490b5a81c502b3b873261f3b7d193.jpg)
some area should be ground free as you see with Red Cross in above pic. how should I draw a keep-out layer?
some area I need to have many ground vias as you see with some Blue circles. is there any prepared multi-layer via?
the left pad of C3 capacitor is connected to ground as you see in above schematic, but why the ground plane is not unified with this pad?!!!
Thanks
I have drawn a 6-layers layout in ADS.
I should have a ground plane and many ground vias on the top layer.
I have inserted a ground plane with 20mils clearance as shown below:
![2.JPG 2.JPG](https://www.edaboard.com/data/attachments/76/76104-c30522b1fb3acf02a5bf8ec1182c7b0a.jpg)
![3.JPG 3.JPG](https://www.edaboard.com/data/attachments/76/76105-d067f15803e7cfb9ac9805d7d36e5578.jpg)
![1.JPG 1.JPG](https://www.edaboard.com/data/attachments/76/76103-b37490b5a81c502b3b873261f3b7d193.jpg)
some area should be ground free as you see with Red Cross in above pic. how should I draw a keep-out layer?
some area I need to have many ground vias as you see with some Blue circles. is there any prepared multi-layer via?
the left pad of C3 capacitor is connected to ground as you see in above schematic, but why the ground plane is not unified with this pad?!!!
Thanks