5/20/2023 0 Comments Silkscreen pcbIf you need that, provide an assembly drawing. In cases like that, all the reference designators can make the board unreadable. Some people like to put other information on the board, like instruction or port identifications. This is a printing process and the must be cured. If you have a detailed assembly drawing, with all reference designators, part outlines and polarities clearly marked, you can get away without silkscreen. Most PCBs have a component legend to show which component goes where and is known as Silkscreen or Legend. The only exception with silkscreen is having a good assembly drawing. There’s still a lot of human work and too much ambiguity due to poor use of standards in marketing. Even though we have a nice set of industry standards, the adoption of those standards is sporadic enough that we simply can’t rely on data to be accurate. And it’s a lot easier to short something in operation with all of that extra exposed metal.Ī good assembly drawing format containing reference designators and polarity marks.What about silkscreen? Shouldn’t all of the automation render the need for silk screen an obsolete requirement? In theory yes. Some PC board metal surfaces will corrode if not covered with either solder or solder mask. The amount of solder paste we put down on a surface mount pad is based on making a good solder joint and having solder mask to prevent that migration. Without soldermask, solder can migrate off the pad, on to the traces or down into vias. I would like to know what you think of my latest efforts and if I should move forward with this. I have never had good results with toner transfer. If you’re hand building your own boards, it may be a viable option, but it can lead to so many other problems down the road, we recommend always having a soldermask. silk screen technique for homemade pcb Using Arduino General Electronics system November 1, 2014, 1:50am 1 I've been working on getting a nice homemade silkscreen technique for my PCBs. That’s the short answer - and the incorrect answer according to probably all assembly service providers. You can buy boards that way for less money. Right? Doesn’t leaving mask and silk off dramatically reduce the cost? On the surface (pun somewhat intended), leaving off the soldermask and silkscreen seems like it reduces cost. Today, the users apply the Silkscreen on soldering side that includes manufacturers & engineers. First, however, you will find that people would apply the Silkscreen on the component side. Silkscreen removes ambiguity, ensuring that parts go where parts need to go, and that they are pointed the way they need to be pointed.īut, that’s just the Screaming Circuits perspective. The Silkscreen PCB aims to help you distinguish the PCB components, test points, warning symbols, and other parts of the PCB. To us, soldermask protects exposed metal, reduce the chance of shorts and keeps solder where solder needs to be. Duane Benson, Chief Technology Champion, Screaming CircuitsĪs PCB assemblers, we’ve been asked the question,”Do I really need soldermask and silkscreen?” many times.
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