Multilayer PCB has complex internal structures, including multilayer copper foil circuits, buried holes, blind holes, and interlayer connection lines, which cannot be accurately identified by traditional optical scanning and manual detection methods. Ordinary PCB copying processes can only identify surface circuits, and it is easy to miss errors in internal interlayer circuits, via connections, and insulating layer structures, resulting in cloned multilayer boards with open circuits, short circuits, functional failure, and poor stability. Our professional multilayer PCB copy service is equipped with professional Xray nondestructive inspection equipment, realizing fulllayer, allround, highprecision detection and data restoration of multilayer PCBs, thoroughly solving the technical pain points of difficult internal structure identification and low cloning accuracy of multilayer boards.

Xray inspection is a nondestructive detection technology specially for multilayer PCB internal structure scanning, which can penetrate the PCB insulating layer without damaging the original sample, clearly presenting the distribution of internal copper layers, the position of buried and blind holes, the interlayer circuit connection relationship, and the welding state of internal components. For 4layer, 6layer, 8layer and even higherdensity multilayer industrial control boards, communication highfrequency boards, and precision medical boards, we conduct layerbylayer Xray scanning and image analysis to record the circuit trajectory, line width, spacing, and via connection parameters of each copper layer in detail. The system automatically calibrates the deviation of interlayer alignment and eliminates detection blind spots, ensuring that all internal circuit data is completely and accurately collected.

Based on Xray scanning data, our engineers carry out precise multilayer PCB data sorting, layout restoration, and circuit verification. We compare the scanning data of each layer one by one, verify the electrical connectivity of interlayer via holes, correct interlayer alignment errors, and completely restore the original multilayer stack structure and circuit design logic. After the completion of data restoration, we conduct secondary Xray sampling inspection and circuit simulation testing to ensure that the internal structure and electrical performance of the cloned multilayer board are completely consistent with the original board. The Xray inspectionbased multilayer PCB copy service effectively improves the cloning accuracy and yield of highcomplexity multilayer boards, avoids rework and waste caused by internal structure errors, and provides reliable highprecision replication solutions for highend multilayer circuit boards in industrial control, communication, aerospace, and medical fields.