0.05mm Line Width/Space with 0.1mm Holes for Flexible circuits
Do you need special line width and space to control the impedance in your FPC design?
Do you need 0.1mm drill holes with 0.3mm pad for Flex PCB?
Currently, we made a 2 layers FPC sample, it has required 0.05mm line width and space for all top layer lines, and all lines has required 50ohm single-ended impedance.
Picture1:2 layers FPC sample
You can see very clear lines and holes by 200 times magnifying glass, the hole size is 0.1mm with pad 0.3mm, we drilled it by laser drilling machine.
Picture2:lines and holes by 200 times magnifying glass
There are several factors will affect the impedance. Material stack up (copper thickness and PI thickness), dielectric constant, line width and space. Normally customer only need to tell us which lines require 50/90/100 ohm impedance together with your gerber files, then our engineer will calculate the impedance and adjust the line width and space to meet your impedance before production. If you need to meet the impedance and CAN NOT adjust the line width and space, then we will adjust the stack up to meet the impedance. If you want to know more details about impedance control, welcome to visit the Design Guide in our website https://www.bestfpc.com/Impedance_Control
If you have similar line width and space requirements for your flex printed circuit board, or impedance control requirement, please feel free to send your new enquiry to firstname.lastname@example.org