Sergio, Some are the silkscreen (the letters and symbols you see on one or both sides of the pcb), the solder paste (used when you use surface mounting devices), 8 phisical cooper layers and the nets, look for a general tutorial on pcb fabrication or http://web.wt.net/~billw/gsch2pcb/tutorial.html which is not intended to be a PCB tutorial but is a very good resource.
Olgierd El jue, 02-10-2003 a las 15:05, Sergio Luiz Carmelo Barroso - posdoc escribió: > Dear All, > > Thanks for the answers. > > Sorry, I am not sure if I understood what the layers are. I understand > that the board can have no more than two cooper faces (layers). At the > left side of the PCB screen I can see several buttons (Solder, Gnd-Sldr, > Vcc-Sldr, Component, GND-comp, Vcc-comp, unuesed, unuesed, etc.), but I > think I should see only two, if each button represents a layer (cooper > face) of the board. > > Also, when I "autoroute", I end with more than two colors of tracks. > > Thanks and sorry for the silliness. > > Best regards, > > Sergio > > >The diferent colors are the layer in which resides the traces, look a > >the colors in the left pan to identificate the layer. > > > >Olgierd > > > > >Each copper layer is shown with a different color. Before using > >autoroute, disable the layers you do not want to route on (the buttons > >on the far left, top). > > >
