PCB gold fingers
4 layer Green Impedance Control Industrial Main PCB Board Printing with gold fingers
pcb gold fingers specification：
|Layer：||4||Material：||FR4 TG 170|
|Thickness：||1.6mm||Min. Line width and space：||5.5 mil|
|Min.Hole size：||8 mil||Surface finish：||ENIG+ Gold fingers（30u”）|
|Copper thickness：||1 OZ||Unit size：||4.5*11.0″|
|Impedance control：||Yes||Leading time：||7 working days|
* This a green soldermask pcb board with the ENIG+gold fingers finish. For the gold thickness of the gold fingers, we have the specification of 15u”, 30u”, 50u” and 60 u”.
* For the impedance control boards, we will have a impedance testing and generate a report before they are shipped. And for the gold fingers, we will also inspect on the gold thickness. All these test results will be reported to you in a formal hard copy.