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Doubts: 4 layer PCB appear to be 2 layer?

Posted: Sun Apr 07, 2013 4:47 pm
by grit_fire
Hello Everyone,

I uploaded a 4-layer pcb (1-sigal, 2-VCC 3-GND 4-signal) to BatchPCB and passed the DRC. However, I realize in the page where it shows the information on my board, there is an item says "Layers: 2" while I made four layer for my PCB in Eagle CAD tool. Did I do something wrong in my design?

Thank you guys!