How to perform a cutout for a PA only for the top 4 layers of a PCB
return0 , 09-10-2024, 02:03 PM
I have a PCB which has the following stackup: 4 layers (65mil width), followed by a copper core (94 mils) and then 4 more layers (65 mils). I need to know if it´s possible to do a cutout on the top 4 layers so that when I place a power amplifier IC the thermal pad of the IC will be in direct contact with the copper core. This way I dont have to use thermal vias. Is this possible in Altium? Thanks!
Robert Feranec , 09-10-2024, 03:56 PM
I would contact PCB manufacturer and ask them how they would like me to specify this in manufacturing documentation. I am not sure if this is possible to make visible in Altium 3d or if it is possible to somehow specify it there. Maybe through regions?
Robert Feranec , 09-10-2024, 03:57 PM
https://www.altium.com/documentation/altium-designer/planning-pcb-rigid-flex-regions?version=22&srsltid=AfmBOoq3vNO9K42ATv2lvBzMMj4TxKC4ZUgOM5KmQrWJDXdZtMkL_FmN#assigning-a-layer-stack-and-editing-the-board-region-name-advanced-rigid-flex-mode
return0 , 09-10-2024, 04:08 PM
great, thanks Robert!
QDrives , 09-10-2024, 09:30 PM
Technical term: "Copper coin"
ＶＩＫＡＳ , 09-12-2024, 11:27 AM
I want pcb designing roadmap can some tell me from scratch..
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