For small and medium-sized industrial enterprises and automation equipment manufacturers, a faulty PCB or obsolete circuit board often becomes a bottleneck in production continuity—especially when original design documents are lost or unavailable. PCB cloning, or reverse engineering, emerges as a reliable solution to replicate functional boards accurately. Our proven five-step process ensures precision, consistency, and compatibility with your industrial systems, making us your trusted partner for PCBA orders.
Step 1: Meticulous Preparation
Start with a thorough inspection of the intact PCB. Document details of tall components—including reference designators, footprints, and temperature ratings—before removal. Scan the board at 600 dpi as a backup; after removing tall components, scan again to capture SMD and small parts clearly. Always clean the PCB surface to eliminate dirt, ensuring IC part numbers and silk-screen text remain legible in scans.
Step 2: Component Desoldering & BOM Creation
Use a low-wind hot air gun for desoldering, holding components with tweezers to prevent displacement. Follow the sequence: resistors first, then capacitors, and finally ICs. We prioritize component traceability by using a customized BOM template—each entry has a double-sided tape section to attach desoldered parts corresponding to their reference numbers. After cooling (critical for accurate measurements), use a bridge tester to record component values, which are then digitized for archiving.
Step 3: Residual Solder Removal
Apply soldering flux and use desoldering braid to clean solder residues. Adjust the soldering iron temperature based on PCB layers—multilayer boards require higher temperatures (due to faster heat dissipation) but not so high as to damage the solder mask. Clean the board with PCB cleaner or thinner, then dry it thoroughly for subsequent steps.
Step 4: Software-Enabled Cloning
Convert top and bottom layer scans into software-compatible templates. Create precise component footprints (including silk-screen, pad sizes, and mounting holes) and align them with the scanned layout. For clear copper traces, sand off silk-screen and solder mask—always sand perpendicular to the scan direction for optimal contrast (a more eco-friendly method than chemical stripping). For multilayer boards (e.g., 8-layer), work from outer to inner layers: copy layers 1 and 8, remove their copper, then proceed to 2/7, 3/6, and finally 4/5. Calibrate scans to match the physical board’s dimensions before placing vias, tracing routes, and applying copper pours.
Step 5: Rigorous Quality Inspection
Combine image processing tools, PCB design software, and physical connectivity checks for 100% accuracy. For high-frequency boards, test impedance with specialized equipment; slice samples to measure copper thickness and layer spacing via metallographic microscopes. Analyze substrate dielectric constants (FR4, PTFE, RCC common) to ensure performance matches the original board perfectly.
Our cloning process isn’t just about replication—it’s about delivering PCBA solutions that keep your automation lines running. Whether you need to replace legacy boards or scale production, our precision and industry expertise ensure seamless integration. Contact us today to discuss your PCBA requirements.
