How do you route 3 layer boards? Top layer (components), 2 inner layers and no bottom layer is one configuration that come to mind? Those are not common, but they exist out there.
Jean-Paul On Jun 6, 2014, at 2:40 PM, Lorenzo Marcantonio <[email protected]> wrote: > On Fri, Jun 06, 2014 at 08:31:33PM +0200, jp charras wrote: >> A board has always 2 * n layers ( You know that). >> And has at least always 2 sides, therefore 2 layers (like a rope has >> always 2 ends). > > Well, if there isn't copper (or jumpers) it's not a layer for me. And > I pay less for the board. But obviously the board is not a moebius > strip, so it has two sides :P > >> THT boards (and not only THT boards) that could be done on only one >> *routing* layer, but this layer could be the back layer or the front layer. > > Another very important case is boards with THT on one side and SMD on > the other. Countless power supplies are done that way. > > Either way, it's not a problem. If I want to do a one layer board I just > use one and hide the other. > > -- > Lorenzo Marcantonio > Logos Srl > > _______________________________________________ > Mailing list: https://launchpad.net/~kicad-developers > Post to : [email protected] > Unsubscribe : https://launchpad.net/~kicad-developers > More help : https://help.launchpad.net/ListHelp _______________________________________________ Mailing list: https://launchpad.net/~kicad-developers Post to : [email protected] Unsubscribe : https://launchpad.net/~kicad-developers More help : https://help.launchpad.net/ListHelp
