In the information age, along with the electronic products renewal speed is accelerating and foreign new technology products emerge in an endless stream, the existing popular product technical analysis, technical follow-up, technical barriers to breakthrough and competitive analysis is particularly important, in this situation, PCB copy board emerge as the times require. PCB copy board is also known as a circuit board, circuit board, PCB cloning, cloning, PCB reverse design and so on, it is the premise of electronic products have physical, using reverse research means all kinds of anti product launch the PCB file, the circuit principle diagram and a full set of technical data, and then use that information to technical principle of complete analysis and applied research, and through the process plate making Proofing, circuit board welding, assembly processes to achieve the electronic product cloning.
Copy board also called cloning or imitation, is conducting the research on Reverse Technology PCB board design of the circuit board; also is to use PCB software copying others, also is the software design for circuit according to the circuit board. Others draw a block and then to do your own circuit board. This is the copy board to explain the traditional, with the continuous development of copy board technology, copy board industry influence and scope expanding, define the copy board have been constantly improved and extended, in a narrow sense, copy board only refers to the electronic circuit board PCB file extraction is original and using the file circuit board clone; in a broad sense, copy board includes not only the circuit board, circuit board file extraction cloning, circuit board imitation technology process, but also to modify the circuit board (the board) file, the electronic product shape mold imitation extraction and 3D model data (i.e., scanner) the various types of electronic components and electronic products on the circuit board, to imitate, to decrypt the encrypted chip circuit board or chip assembly of electronic products such as a full set of clones of all technical process of system software of electronic products.
The realization process copy board technology
The first step, get a piece of PCB, first recorded on paper all the components of the model, parameter, and the position, especially the diode, three level pipe direction, the direction of the IC gap. The best shot Zhang Yuan two gas position with a digital camera photos. PCB circuit board now more do more advanced diode triode tubes above some do not pay attention to never see.
The second step, remove all devices, and remove the PAD hole in the tin. PCB clean with alcohol, and then placed in the scanner, the scanner scans when the need to slightly increase the number of scan pixels, in order to get a clearer image. Water paper top and bottom slightly polished, shiny polished to a copper film, placed in the scanner, start PHOTOSHOP, two layers with color scanning. Note, PCB is placed in the scanner must be horizontal, vertical, or scanning image cannot use.
The third step, adjust the canvas contrast, brightness, so that part of the copper film and not part of the copper film contrasting, then switch to the black and white color, check the lines are clear, if not clear, repeat this step. If clear, will survive in the black and white BMP format files TOP.BMP and BOT.BMP, if found graphics problems can also repair and modification for PHOTOSHOP.
The fourth step, the two BMP format files into PROTEL format file, into two layers in PROTEL, such as position basically coincide with two layers of PAD and VIA, show that the first few steps to do well, if there is a deviation, then repeat step third. So PCB copy board is a work of patience, because a small problem will affect the matching degree of quality and the copy board.
The fifth step, the TOP layer of the BMP into TOP.PCB, the note to be converted to the SILK layer, is the yellow layer, then you in the TOP layer is the scanning line, and according to the second step of placing device. The SILK layer will be unfinished deleted. Repeated know to draw all layers.
The sixth step, the redeployment of PROTEL will be TOP.PCB and BOT.PCB, as a graph on OK.
The seventh step, using a laser printer TOP LAYER, BOTTOM LAYER print to transparencies (1:1 ratio), the film on the piece of PCB, compare whether the error, if yes, you will be accomplished.
Copy board piece and the original board like was born, but this is only half done. Would also like to test, electronic technology and performance testing copy board Is it right? And original plate. If it is done.
Note: if the multilayer also carefully polished to the inside of the inner layer, at the same time, repeat third to copy board step fifth step, of course, the naming of the graphics are different, according to the number of layers, the general double sided board than many simple multilayer, multilayer board copy prone misaligned, so the multilayer copy plate to be especially careful and careful (internal vias and not via hole is prone to problems).
PCB Copy Flow
Step 1. Firstly write down all components' part numbers, parameters and placement, especially diode and audion's direction, IC gap's direction. It's better to take some photos of components' placement by digital camera.
Step 2. Dismantle all components on the board and remove the tin in PAD holes. Next, use alcohol to clean the PCB and then put it into scanner, start "PHOTOSHOT" to scan silkscreen side with color pattern and print it out for later use.
Step 3. Slightly burnish TOP LAYER and BOTTOM LAYER with waterproof abrasive paper and then put it into scanner, start "PHOTOSHOP" to scan TOP and BOTTOM LAYERS. Please note that the PCB must be placed flat, or the scanned pictures are unusable.
Step 4. Adjust canvas' contrast ratio and intensity to form sharp contrast between the part with copper film and the part without copper film, and then turn the pictures into black and white color. Check if the lines are clear, if not, the above job must be repeated; if clear, save the pictures in black and white BMP format file, namely TOP.BMP and BOT.BMP.
Step 5. Turn two BMP format files into PROTEL format and insert TOP and BOTTOM layers; if the two layers' pads and vias are overlapping, the next step can continue; on the contrary, the job of step 3 must be done again.
Step 6. Turn TOP.BMP into TOP.PCB in SILK layer, draw lines on TOP layer and place components according to pictures mentioned in step 2; finally delete SILK layer after finishing drawing.
Step 7. Turn BOT.BMP into BOT.PCB in SILK layer, and then draw lines on BOT layer, finally delete SILK layer after finishing drawing.
Step 8. Insert TOP PCB and BOT PCB in PROTEL and then integrate them into a picture.
Step 9. Use laser printer to print TOP LAYER and BOTTOM LAYER with transparent film (1:1 ratio) and then put the transparent film on the PCB for checking. If there isn't any error, the PCB copy is successful.
About PCBWAY
Since 2003 PCBWAY has been the leading PCB quick turn manufacturer specializing in both Prototype and Production quantities, Initially produced single-sided and double-sided printed circuit boards for the consumer electronics market. PCBWAY is ranked among the top 4 board fabricators in asia and is well-known for its expedited turn time capabilities and its reliable best on-time shipping record.
Today, we have over 450 operators with high modern facilities to manufacture multi-layer PCB up to 12 layers. Backing up with a group of professional engineers, and well established quality system. PCBWay has grown to become a major PCB manufacturer in Asia to serve in diverse customers base such as electronics appliance, communication, educational electronics, power supplies, Automationsetc.
Our mission is to become one of leading PCB manufacturer that provide in high quality product with total customer satisfaction.
For more information about PCB, or to learn more about the online quote and ordering process, please visit //www.PCBway.com.
