{"id":951,"date":"2021-08-24T16:37:44","date_gmt":"2021-08-24T08:37:44","guid":{"rendered":"http:\/\/www.bestpcbs.com\/blog\/?p=951"},"modified":"2022-08-17T17:59:09","modified_gmt":"2022-08-17T09:59:09","slug":"why-most-of-pcb-boards-are-green","status":"publish","type":"post","link":"https:\/\/www.bestpcbs.com\/blog\/2021\/08\/why-most-of-pcb-boards-are-green\/","title":{"rendered":"Why most of PCB boards are green?"},"content":{"rendered":"
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You may have found such a situation, most of the PCB boards are with green colors, while other colors are relatively rare to see, do you know why?<\/p>\n\n\n\n

As we know that the Printed Circuits Board consists of Solder Mask Layer, Silk screen layer, solder PAD, Copper traces, surface finishing and other parts, etc.<\/p>\n\n\n\n

Among them, the solder mask refers to the part of the PCB that is covered by oil. Since most PCB boards use green oil, the part of the green oil that can be seen on the board surface is the solder mask, which play an important role during the reflow soldering process.  <\/p>\n\n\n

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green solder mask<\/figcaption><\/figure><\/div>\n\n\n

Then why are most of the PCB boa<\/a>rds green? The main reasons are as follows:<\/p>\n\n\n\n

  1. Green is less irritating to the eyes. We all know that green is good for the eyes and can resists fatigue. So when the PCB board with green solder mask, relative production and maintenance personnel are not prone to eye fatigue when staring at the PCB board for a long time, and it is less harmful to the eyes.<\/li><\/ol>\n\n\n\n

    2. Cost for Green oil is lower. Since green is the mainstream in the production process, the purchase of natural green oil will be larger, and the purchase cost of green solder mask will be lower than other colors. At the same time, using the same color oil in mass production can also reduce the replacement cost.<\/p>\n\n\n\n