Avoid these four circuit board design mistakes:
1. Stipulating a "minus" tolerance on small micro via holes
2. Having Non-functional pads on inner layers
3. Not defining nor considering edge tolerances
4. Stipulating wrong copper thicknesses
To begin, the laminate manufacturer freely admits the material will move, but only during the etching process.
The key they state is to first etch 80% of the copper, cure the material in an oven, then provide a final etch and a final baking cure.
(Image by Jeff Keizer)
When beginning work with a new material, you try to do as much research and get as much advice as possible.
You download the manufacturers documentation and talk with the manufacturers representatives, drill/router bit manufacturers and other PCB manufacturers who have worked on the material in the past.
After compiling all this information, a manufacturing process is developed which fits both the material and your own facility.
The purpose of panelization is to secure PCB boards during manufacturing, shipping and assembly processes and faster throughput while making their separation as painless as possible.
PCB Manufacturer = The company that manufactures blank PCBs for you, Omni Circuit Boards Ltd is a "PCB Manufacturer"
PCBA Manufacturer = The company that manufactures an assembled or populated PCB for you, also known as CMs or contract manufacturers.