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The PCB files required for manufacturing


Most PCB design engineers are used to designing PCB files and sending them directly to PCB factories for processing. The most popular practice in the world is to convert PCB files into GERBER files and drilling data and then submit them to PCB manufacturers, why it's necessary to do in this way?


Because PCB production engineers and PCB design engineers have different understandings of PCBs, the GERBER file converted from the PCB factory may not be what you want. For example, when you define the parameters of the components in the PCB file during design, you do n’t want these The parameters are displayed on the finished PCB. You did not explain it. The PCB factory left these parameters on the finished PCB according to the gourd painting. This is just an example. If you convert the PCB file into a GERBER file yourself, you can avoid such events.


The GERBER file is an international standard light drawing format file, which contains RS-274-D and RS-274-X two formats, of which RS-274-D is called the basic GERBER format, and must be accompanied by a D code file. Completely describe a graphic; RS-274-X is called the extended GERBER format, which itself contains D code information. Common CAD software can generate these two format files.


How to check the correctness of the generated GERBER? You only need to import these GERBER files and D code files in the free software Viewmate V6.3 to see them on the screen or print them out through the printer.


Drilling data can also be generated by various CAD software. The general format is Excellon, which can also be displayed in Viewmate. Without drilling data, of course, you can't make a PCB. 

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