Car monitoring circuit board assembly
This post mainly discusses about the PCB fabrication of the outer layers section.
The outer layers of our multilayer consist of sheets of glass cloth pre-impregnated with uncured epoxy resin (prepreg) and a thin copper foil.
This is related to a few factors to the outer layers of PCB during to fabrication process.
First is the multilayer PCB have outer layer.
So the single layer or two layers (sometimes also called double layer PCB) didn't have outer layer.
And the second is the outer layer PCB consist of.
Or we can discuss about the made from material.
One kind of material is copper.
Last but not least one factor.
It's the PCB fabrication experience.