PCB board testing is essential for manufacturing, production, and prototypes, and includes slice analysis, green oil adhesion test, metallized hole thermal stress test, dielectric withstand voltage test, damp heat and insulation resistance test, temperature impact test, and various other methods such as online testing, flying needle test, automatic optical inspection, X-ray examination, functional testing, manufacturing design, solderability test, PCB contamination test, microsection analysis, and other functional tests.