[time-nuts] PCB design questions thread II

[Jim Lux]

At 06:05 PM 6/2/2008, you wrote:
>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.
><snip>
>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.

or etch ALL the copper off one side of two sided..

Jim