Reverse Engineerng PCB Technology
Reverse Engineerng PCB Technology is a kind of technology to extract the schematic diagram, gerber file, layout diagram and BOM list from PCB Board, through these documents we can reproduce the PCB board;
In the PCB reverse engineering process, layout is the most critical step of circuit board copying, and even there is another saying is all of the work and preparation engineers have done before are all for this purpose. In the whole process of PCB reverse engineering, layout has the high level and most restricted terms, with finest skill and great workload. PCB layout can be separated into single side layout, double side layout and multilayer layout for printed circuit board.
And there are two ways of PCB design layout: automatically layout and cross layout. Before engineer use automatically layout, they can use cross layout in advance in those circuit parts which has higher requirement. The circuit conductors on the input and output terminate should avoid the parallel layout which can help to decrease the reflection interference. Add ground line to isolate them when necessary and the layout in adjacent layers should be vertical, since parallel could possibly has the decoupling issue.
The first yield rate of automatically layou is firmly depends on the high quality of PCB board circuit pattern arrangement, the layout rules can be set in advance, which include the bend quantity, number of through hole, stepper quantity, etc. generally speaking, exploring stepper should be instrumented first, and then follow the short circuit connection swiftly, finally comes the labyrith layout, so optimize the layout profile is critical.
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