PCB cloning, equivalent to PCB copy board, PCB copy board is another way of saying, are already in the premise of electronic products and circuit board, the use of reverse research and development technology means of circuit board reverse analysis, The original products of PCB file and material list (BOM), schematic documents such as technical documents and PCB file for screen printing production 1:1 reduction, and then reuse these technical files and production of PCB board system, components welding, flying probe test, circuit debugging, complete model a complete copy of the original circuit.

PCB copying only refers to the process of extracting and restoring PCB files of electronic circuit boards and cloning circuit boards by using the files. Copy board includes not only the PCB file generic technology such as extraction, PCB cloning, PCB process, but also to modify PCB file change (PCB board), the electronic products of all kinds of electronic components on printed circuit boards information extraction and sorting, encrypted chips on the circuit board or all the technology such as single-chip decryption process.

PCB copying process:

PCB copy board technology implementation process in simple terms, is to first scan copy board circuit boards, record the details of the components, and components removed to make material list (BOM) and arrange the material purchasing, empty plate image is scanned into the software processing back into PCB copy board figure file, and then send a PCB file to plate plate making factory, After the board is made, the purchased components will be welded to the PCB board made, and then through the PCB test and debugging.

PCB board copying method:

The first step: get a PCB, first of all on the paper to record all the components of the model, parameters, and position, especially the diode, three pipe direction, IC notch direction. It is best to take two pictures of the position of the ski with a digital camera. Now the circuit board more and more advanced above the diode triode some do not pay attention to simply can not see.

Step 2: Board removal: Remove all components and remove the tin from the PAD hole. Clean the PCB with alcohol or washing board water, then put it into the scanner (multi-functional printer with scanning function), open the scanning software of Win 10, set the scanning format and resolution (1200DPI is recommended, set the image scanning format to BMP format), and ensure a clearer image. Sweep in the side with the silk screen, save the file and print it out for later use.

Step 3: Make BOM: according to the circuit board picture in step 1, record the model, parameter and position of all components on paper, especially the direction of diode, three engine tube and IC notch, and finally make BOM.

Step 4: Grinding plate: Polish the ink of the TOP LAYER and BOTTOM LAYER with yarn paper until the copper film shines, then put it into the scanner and continue to scan the positive and negative pictures (note that THE PCB must be placed horizontally and straight in the scanner, otherwise the scanned image will be tilted, and it will be troublesome to adjust the picture later) and save the file.

Step 5: Edit: Run PHOTOSHO to open the scanned picture, adjust the contrast and shade of the canvas, so that the part with copper film and the part without copper film contrast strongly, check whether the lines are clear, if not, repeat this step. If it is clear, the picture is saved as color BMP format files top.bmp and bot.bmp. If there is a problem with the picture, it can be repaired and corrected with PHOTOSHOP.

Step 6: Picture calibration: Start the PCB copying software QuickPcb2005 and import the scanned PCB pictures in the file menu. For example, the positions of PAD and VIA through two layers basically coincide, indicating that the previous steps have been done well. If there is any deviation, repeat step 5.

Step 7: packaging production and drawing line: import the BMP picture of the TOP layer into QuickPcb2005 software, respectively into the corresponding layer, and then place the device, respectively depict the TOP layer and BOTTOM layer of the line.

Step 8: Export PCB file: After most of the drawing is done in QuickPC 2005 software, export the file and save it as a. PCB format.

Step 9: File post-processing and optimization: Import the exported. PCB format file into EDA software for optimization. It is recommended to use Alitum Desiger 19 to optimize the file and DRC check, and output the GENERATED PCB file.