The standard 1.6mm thickness 4-layer PCB stack-up is as below (from top to bottom): 1oz copper (0.035mm) + 7628Prepreg(0.1778mm) + 1.2mm core board + 7628Prepreg(0.1778mm) + 1oz copper(0.035mm). The tolerance of the finished thickness is +/-0.1mm.
We can also offer 4 layer PCBs with thicknesses of 0.8mm, 1.0mm, 2.0mm and 2.4mm. Please contact us to find out more information about a multi-layer PCB stack-up.
Posted in: PCB Specification