Printed circuit board manufacturers

8 layers pcb assy blue custom gold-fingers IPC class 3 electronic circuit board


Electronic circuit board specification :

Layer: 8 Material: FR4 TG175
Thickness: 0.062″ Min.Lind width: 4mil
Min.Hole size: 8mil Surface finish: ENIG+30 U” gold fingers
Copper thickness: 1 OZ Unit size: 3.50*4.50″
Leading time: 7 working days Min.copper hole: 1mil/hole

Product detail:

*  We choose IT 180A  for TG 175, especially for the multilayer circuit boards

*  The surface finish of the board is ENIG+gold fingers.  For the gold thickness of the gold fingers, we have the specification of 15u”, 30u”, 50u” and 60 u”.

*  Also we have the 1 mil min copper in holes as our standard.

*  For the solder mask color, we provide not only bule, but also other colors like black, red and yellow.


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