Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


PCB layer to layer registration

Views: 1456

#78096

PCB layer to layer registration | 6 July, 2017

Hello everyone, I was curious if anyone knows what criteria there is for layer to layer registration. I have looked at ipc-600 and 601 and have not found anything or am missing something. We had a small qty. of pcbs sent to a customer and some inner layers were shorting now we are very sensitive on our inspection of bare PCB and very sensitive when it LOOKS like layers are shifted. Any input would be helpful.

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#78098

PCB layer to layer registration | 6 July, 2017

Hi Jack,

Haven't you done 100% E-test? there is a registration tolerance. CCD+/-2mil, Manual+/-4mils according to our manufacturing capacitites.

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#78142

PCB layer to layer registration | 7 July, 2017

Our PCB supplier was supposed to be doing 100% ET but a few of his PCBs were not, and were not marked as tested, so now we are supersensitive. We received some PCBs from a new supplier and one of our inspectors noticed some shift. I was looking for some criteria from IPC or some other standard.

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#78792

PCB layer to layer registration | 31 August, 2017

Hello ALL Good day , it is Amalia from HX Circuit Technology Co.,Ltd in China, we are a prefessional PCB factory with many years. We are focusing on quick lead time for PCB with good service . please contact with me now ,thanks Email: amalia@hx-circuit.com Skype: amalia.zeng www.hx-circuit.com Sorry for bothering you here

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