Documents provided to the manufacturing plant before the pcb board is manufactured

2019-09-04 22:02:25 473

Most PCB design engineers are accustomed to designing PCB boards directly to PCB manufacturing plants. The most popular method in the world is to convert PCB files into GERBER files and drilling data and then hand them to PCB manufacturing plants. Why do you want to do this? "What?"

Because the PCB manufacturing engineer and the PCB design engineer have different understandings of the PCB, the GERBER file converted by the PCB manufacturing factory may not be what you want. If you design the component parameters in the PCB file, you don't want to Let these parameters be displayed on the finished PCB board. If you have not explained it, the PCB manufacturing factory still keeps these parameters on the finished PCB. This is just an example. This can be avoided if you convert the PCB file to a GERBER file yourself.

The GERBER file is an international standard lithography format file, which includes RS-274-D and RS-274-X formats. The RS-274-D is called the basic GERBER format and must be accompanied by a D code file. A complete description of a graphic; RS-274-X is called the extended GERBER format, which itself contains D code information. Commonly used CAD software can generate these two format files.

How to check the correctness of the generated GERBER? Simply import these GERBER files and D-code files into the free software Viewmate V6.3 to see them on the screen or 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. If there is no drilling data, the PCB cannot be produced.

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