PCB imitation board is PCB copy board, PCB copy board is PCB clone, is PCB design reverse engineering. Firstly, the components on the PCB board are removed and made into BOM, and the empty board is scanned into pictures and restored into PCB board drawing files by board copying software. Send the PCB board drawing file to the PCB factory to make the board (PCBA), then add the components (purchase the corresponding components according to the BOM), and the PCB board is exactly the same as the original PCB board.

Through PCB copying technology can complete any electronic product imitation, electronic product cloning.

Copy board is also called change board, is to design the PCB board reverse technology research. In reference to a large number of information, the board copying process is summarized as follows:

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 PCB circuit board is more and more advanced above the diode triode some do not pay attention to simply can not see.

Step 2: Remove all components and remove the tin from the PAD holes. Tisztítsa meg a NYÁK -t alkohollal, és helyezze egy szkennerbe, amely kissé magasabb képpontokat vizsgál, hogy élesebb képet kapjon. Ezután a felső és az alsó réteget enyhén polírozza vízzel fonalpapírral, amíg a rézfólia fényes nem lesz. Helyezze be őket a szkennerbe, indítsa el a PHOTOSHOP programot, és ecsetelje a két réteget külön -külön színben. Vegye figyelembe, hogy a NYÁK -t vízszintesen és függőlegesen kell elhelyezni a szkennerben, különben a szkennelt kép nem használható.

The third step, adjust the contrast and shade of the canvas, so that the part with copper film and the part without copper film contrast strongly, and then turn the subgraph to black and white, check whether the lines are clear, if not, repeat this step. If it is clear, save the picture as black and white BMP format files top.bmp and bot.bmp. If there is a problem with the picture, you can use PHOTOSHOP to repair and correct it.

The fourth step is to convert the two BMP files into PROTEL files respectively, and transfer two layers into PROTEL. For example, the positions of PAD and VIA that have passed the two layers basically coincide, indicating that the previous steps have been done well. If there is any deviation, repeat the third step. Ezért a NYÁK -lap másolása nagyon türelmes munka, mert egy kis probléma befolyásolja a minőséget és a megfelelő mértéket a tábla másolása után.

Step 5, convert TOP layer BMP to TOP.PCB, make sure to convert SILK layer, that is the yellow layer, then you trace the line on TOP layer, and place the device according to the drawing of step 2. Festés után törölje le a SILK réteget. Repeat until all layers are drawn.

Step 6, in PROTEL, call in top. PCB and bot. PCB, and combine them into one figure.

Step 7, use laser printer to print the TOP LAYER and the BOTTOM LAYER to transparent film (1:1 ratio), put the film on that PCB and compare if it is wrong, if it is right, you are done.

A copy of the original board was created, but it was only half done. Have a test even, the electronic technology performance that tests copy board is same as original board. Ha ugyanaz, akkor tényleg kész.

Megjegyzés: If it is a multi-layer board but also carefully polished to the inside of the inner layer, at the same time repeat the third to the fifth step of copying board steps, of course, the graphics of the name is different, according to the number of layers to decide, the general double panel copying board is much simpler than the multi-layer board, multi-layer copying board is prone to misalignment, So the multilayer board copy board to be particularly careful and careful (the internal through hole and not through hole is prone to problems).

Double panel copying method:

1. Scan the upper and lower layers of the circuit board to save two BMP pictures.

2. Open quickPC 2005, click “File” and “Open Base” to open a scanned image. Enlarge the screen with PAGEUP, see pad, place a pad according to PP, see the line according to PT line…… Just like a child drawing, draw it in the software and click “Save” to generate a B2P file.

3. Click “File” and “Open Base Map” to open the scan color map of another layer;

4. Click “File” and “Open” to open the previously saved B2P file. We can see that the newly copied board is superposed on this picture — the same PCB board with holes in the same position, but the circuit connections are different. So we press “Options” – “Layer Settings” to turn off the display top line and silk screen here, leaving only multiple layers of holes.

5. The holes in the top layer are in the same position as the holes in the bottom layer. Now we can trace the lines in the bottom layer as we did in childhood. Click “Save” again – the B2P file now has the data at the top and bottom levels.

6. Click “File” “Export to PCB File”, you can get a PCB file with two layers of data, which can be modified board or schematic diagram or directly sent to PCB plate factory for production

Multi-layer board copying method:

In fact, the four board copy board is repeated copy two double panels, six is repeated copy three double panels…… The layers are daunting because we can’t see the wiring inside. A sophisticated multilayer board, how do we see its inner universe? – layered.

Now there are many ways to layer, there are potion corrosion, tool stripping, but it is easy to layer too much, loss of data. Experience tells us that sandpaper is the most accurate.

When we finish copying the top and bottom layer of PCB, we usually use sandpaper to grind off the surface layer and show the inner layer. Sandpaper is the ordinary sandpaper sold in the hardware store, usually laid on the PCB, and then hold the sandpaper, evenly rubbed on the PCB (if the board is small, also can be laid on the sandpaper, with one finger to hold the PCB on the sandpaper friction). The point is to smooth it so that it’s even.

Silk screen and green oil are generally wiped off, copper wire and copper skin should be wiped several times. Generally speaking, bluetooth board can be wiped in a few minutes, about ten minutes memory; Of course, with greater strength, it takes less time; Strength flower will have a little more time.

Mill plate is the most common plan used in stratification at present, but also the most economic. We can find a piece of discarded PCB for a try. In fact, it is not technically difficult to grind the board, but it is just a bit boring. It takes some effort, and there is no need to worry about grinding the board through and to your fingers.