Hello Folks!
I make a lot of boards for high power LEDs. It is common in the industry to use aluminum core boards for this type of application. An aluminum core board has only top layers (silkscreen, mask, solder, and top layer) followed by a thin dielectric layer and then the aluminum substrate. I cannot figure out how to build this stackup in CS. I can delete all but the copper layer on the bottom and I cannot rename or change any property of that layer. I can add layers all day long - as long as they are signal, dielectric or internal plane. Has anyone made such a stackup?
