In the production process of PCB, there are many defects such as surface smudginess, solder mask unevenness, text excursion, pad damage, track damage etc.
在印刷电路板的生产过程中,会产生外观不整洁、阻焊不均匀、文字偏移、线路及焊盘破损等缺陷。
Solder mask
英语例句库
原声例句
DEFCON Collection
You know traces that are on the outer layers of the PCB you can actually scrape off the solder mask and get at those. but you're gonna have less options.
你知道，在印刷电路板的外层上有痕迹，你实际上可以刮掉焊接掩膜，然后拿到这些痕迹。但你会有更少的选择。
英语百科
Solder mask
Solder mask or solder stop mask or solder resist is a thin lacquer-like layer of polymer that is usually applied to the copper traces of a printed circuit board (PCB) for protection against oxidation and to prevent solder bridges from forming between closely spaced solder pads. A solder bridge is an unintended electrical connection between two conductors by means of a small blob of solder. PCBs use solder masks to prevent this from happening. Solder mask is not always used for hand soldered assemblies, but is essential for mass-produced boards that are soldered automatically using reflow or solder bath techniques. Once applied, openings must be made in the solder mask wherever components are soldered, which is accomplished using photolithography. Solder mask is traditionally green but is now available in many colors.
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