During the PCB production process, it is crucial to transmit the PCB CAM data generated by CAD to the PCB manufacturer. The manufacturer then uses the CAM 1 data editor to thoroughly examine and modify the film and hole data, along with incorporating necessary reference marks and production-specific correction values. One important aspect to check is the appropriate distance between pads and apertures in the design. Typically, the pads are tin-plated and the plug-in holes are hollow. While a slight deviation in width during the design process is acceptable, manufacturers have their own minimum width standards that must be adhered to. These production standards need to be considered alongside the regular design standards. For instance, the minimum pad width may range from 0.2mm to 0.25mm, depending on the capabilities of different manufacturers. It is vital to ensure that the required pad width can be accurately achieved to guarantee pad formation.

Another critical check is the distance between the window on the solder mask and the pad. PCBs are typically covered with a green film texture known as the solder mask, which aids in soldering. To prevent interference with the soldering process, the window on the solder mask should be larger than the pad diameter, maintaining a specific distance, often set to 0.2mm. This ensures that even if there is some deviation on the board, the solder mask will not obstruct the pad, resulting in poor soldering.

Lastly, it is essential to review the minimum trace width and spacing. Under normal circumstances, the manufacturing process can achieve a minimum width and spacing of 0.2mm. If a smaller width or spacing is required, a special process is necessary. These are the minimum standards that manufacturers can usually achieve, and they must be taken into account during the design stage.