Bob Paddock wrote: >>> 2. How many layers? In an ideal world with money no object, if I >>> understand the current art correctly, I think I'd probably aim for a five >>> layer > > I assume that is a typo? You can not have an odd number of layers. > In this current 3D reality each layer has two sides. :-)
Sure you can. I have done 3 layer, 5 layer, and 7 layer boards. Having done those, I will advise you not to do 3 layer, it warps. But everything else is easily do able. Multilayer boards are done by bonding together combinations of 1 side, 2 side, and 0 sided laminate. For instance: 4 layer can be made by: 2 side | 0 side | 2 side 1 side | 2 side | 1 side 1 side | 1 side | 2 side ... 5 layer can be made by: 2 side | 1 side | 1 side | 1 side 2 side | 0 side | 2 side | 1 side 2 side | 1 side | 0 side | 2 side ... 6 layer can be made by: 2 side | 0 side | 2 side | 0 side | 2 side ... The only down side to odd numbers of layers is the supply house has to stock 1 sided laminate. -Chuck Harris _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
