5 pieces prototype pcbs follow these rules:
2 layers, FR-4 ,Tg140,
Thickness 0.8mm-1.6mm
finished copper thickness:1OZ
green solder mask,white silkscreen. HASL
The following specifications define the requirements for 2 layers pcb layout rules:
Track size
Minimum track width:5 mil
Minimum track spacing:5 mil
Pad size
Minimum pth hole pad size: hole size+20mil
Minimum via hole pad size: hole size+12mil
Minimum pad spacing :6mil
minimum soldermask openning pad
sapcing to ensure the dam:8mil
Hole size
Max npth hole size:6.0mm
Minimum npth hole size:0.3mm
Minimum slot size:0.8mm
*Please note that when you add one product to shopping cart,it means that you can get 5 pieces pcb.not 1 piece.
