Electronics Forum | Wed Aug 22 16:00:02 EDT 2007 | razor1
The color variation in the solder mask from our PCB supplier varies to the point that we have problems with our AOI recognition and accuracy. We have not been successful at finding an industry spec which outlines solder mask color requirements. We
Electronics Forum | Wed Aug 22 21:44:04 EDT 2007 | davef
Questions are: * Do these boards meet IPC-A-600? * What does your supplier say is the source of this color variation? * What steps is your supplier taking to make the boards more acceptable?
Electronics Forum | Thu Aug 23 11:24:16 EDT 2007 | hussman
Welcome to Chine. Your best bet is to specify the type of mask you want and the type of finish you need. If not, they run what ever they have available. You may want to contact you board vendor and find out what they can offer. That's what we had
Electronics Forum | Wed Jan 14 08:43:14 EST 2009 | prkonrad
I did not change my mind, I just said that we sat down with the manufacturer and showed them the 3-4 different color PCBs for one product. They agreed that it is not acceptable... and supply us only from one of their sites. (the different manufacturi
Electronics Forum | Tue Dec 30 11:29:13 EST 2008 | davef
People use green soldermask because people use green soldermask. In the 1950s, the US military selected green, because they liked green better than other colors. So, here we are. We believe the performance of red and blue is comparable with green. T
Electronics Forum | Wed Dec 12 17:00:14 EST 2001 | mparker
Aw Dave - you guys are so fashionable, are the dark green and red combos seasonal? caramel brown like a Pale Ale? I once heard that the green was chosen because it gives the best color contrast for white silk screens. As for color reflecting or abs
Electronics Forum | Tue Jan 13 12:54:11 EST 2009 | boardhouse
Emil, Part of the problem it sounded like is that the color was not clearly defined as light or dark in Matte or gloss. Your example of car paint would have the same issue if you just ask them to paint your car green. What color of green would y
Electronics Forum | Tue Dec 11 22:31:40 EST 2001 | davef
I'd be surprised if solder mask color is causing your delamination. We use various solder mask colors on FR4 boards and notice no difference. * ~99% of our boards are a medium green * ~1% of our boards are dark green * One of our boards is caramel b
Electronics Forum | Fri Jan 09 01:15:45 EST 2009 | sarah_9
Hello, Hey friend i also wonder why always green , recently i purchased blue solder mask for my brother, it looks more attractive and lively. Regards, sarah_9 www.museoshop.com/
Electronics Forum | Wed Jan 14 18:23:05 EST 2009 | boardhouse
konrad, Here are a couple of things that can affect color. 1) Material color is the major, 2) Matte green from Enthone would be different in shad than Matte green from Taiyo. 3) Solder mask is two parts, One the green mask, two the hardner, having t
