Electronics Forum | Wed Sep 03 03:51:36 EDT 2014 | methewbell
Hello everyone, hope people will find this information useful... In UK you can find best pcbs at a great price from here your local source for PCB Manufacturing in UK with International Standards We manufacture high quality and reliable prototype P
Electronics Forum | Thu Sep 04 05:18:45 EDT 2014 | sasa29
PCB Manufacturing demands preparation of design well in advance. The finalized designs are fed into the systems and the production is carried away. If the boards are of small sizes, multiple boards are made on a single large board and separated into
Electronics Forum | Thu Aug 28 23:15:44 EDT 2014 | phyllishwl
Hi all, Our production reported that they found 3 panels out of 53 panels with strange phenomenon after reflow. 1/ Blister / Delamination of PCB panels, 2pcs blister/delamination under solder mask, 1pc under Gold plating at Gold finger 2/ Silkscr
Electronics Forum | Fri Aug 29 09:39:08 EDT 2014 | rgduval
I'll try to deal with the issues as you've presented them. 1. Blistering/delamination, shown in photo 2. The most likely cause of blistering/delamination like this is moisture in the boards. The moisture can get into the boards in multiple ways..
Electronics Forum | Thu Apr 20 14:11:24 EDT 2006 | cw
hi All, recently i have received some parts with the lead turning black, and i then found out the leads are silver plating, is that going to be a problem? or it is simply a cosmetic issue? pls advise ASAP!! thansk a lot!!
Electronics Forum | Wed Apr 01 07:20:51 EDT 2020 | proceng1
The brush also turned yellow.
Electronics Forum | Wed Apr 01 07:18:29 EDT 2020 | proceng1
We are using Superior 515 flux to clean and tin selective solder nozzles. Yesterday the flux turned a bright yellow (like a highlighter) when heated after the flux being applied. This does not happen with our Lead Free solder, only the Lead alloy.
Electronics Forum | Wed Apr 01 11:41:34 EDT 2020 | emeto
Very interesting.Safety datasheet suggest acid that might turn yellowish. I am interested is it cleaned easily with water?
Electronics Forum | Wed Apr 01 12:45:31 EDT 2020 | emeto
And this is why you see it only in Leaded process I guess.
Electronics Forum | Wed Apr 01 11:48:16 EDT 2020 | proceng1
We did not try using water. Once the nozzles were left in the pot a while longer, the yellow goes away. Suggesting that it's cooking off.
