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PCB prepreg vs core describes the difference between partially cured bonding material and a fully cured laminate used in multilayer boards. Prepreg contains reinforcement and resin that flows and cures ...

What Is PCB Stackup? PCB layer stackup defines how copper layers and insulating materials are arranged within a multilayer circuit board. It specifies signal layers, power and ground planes, dielectric ...

PCB AOI uses cameras, lighting and image processing to inspect visible features of assembled circuit boards. Automated optical inspection can identify missing or misaligned components, polarity errors where markings are ...

PCB design rules define layout constraints such as trace widths, copper clearances, hole sizes and board edge spacing. Design Rule Check, or DRC, compares a PCB layout against these configured ...

PCB X-ray inspection uses radiographic imaging to evaluate hidden solder joints in PCB assemblies without dismantling components. Automated X-ray inspection, or AXI, helps assess packages such as BGA, CSP and ...

Introduction PCB electrical testing checks bare boards for continuity and isolation, helping identify open circuits and unintended connections before component assembly. As layouts become denser, electrical defects may escape visual ...