But basically: - Core: material which has copper-isolation-copper (looks like 2 layer PCB, but you can buy it in different thickness) - Prepreg: just isolation e.g. used to stick two cores together
I am not sure if I have ever used film or surface material (they removed that options from that menu later). But I found a little bit more info here (search for film) - maybe it will help: ​https://www.altium.com/documentation...yer+Stack))_AD
Use our interactive Discord forum to reply or ask new questions.