Aluminum substrate PCB production specifications and design rules

The main technical requirements are: Size requirements, including board size and deviation, thickness and deviation, verticality and warpage; appearance, including requirements for cracks, scratches, burrs and delamination, aluminum oxide film, etc.; performance, including peel strength, surface resistivity, minimum breakdown voltage, dielectric constant, flammability and thermal resistance. Special testing methods for aluminum-based copper-clad laminates: First, the…