Difficulty of a 6-8 Layer Board with one very precise layer, and the remainder normal layers.

Engineer asked Jan 14,2025
0

A Project of mine requires a small number of ICs with supporting <3mil traces and spacing, about which ive asked previously and gotten a good answer.

I have gotten quite a lot further through the project and noticed, that only the top layer requires such precision, the rest of the pcb can be made with normal 5 or 6 mil spacing and traces.

(Previous Question: https://www.pcbway.com/project/question/How_can_I_select_2mil_Spacing_Traces_for_PCBs_.html )

Would the requirement of only one precise layer change anything for me as the customer?

Thank you in advance.

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