Electronics Forum | Thu Nov 14 10:18:31 EST 2019 | slthomas
It doesn't look to me like the jumper wire is wetting at all. I would immediately question the solderability - do you know how that jumper wire is finished (plating type)? Also, how experienced are the solderers? It could be that the wire never get
Electronics Forum | Tue Dec 31 02:29:29 EST 2019 | sssamw
Do you have clear picture show how it looks like solder open? And you can run DOE with TAL and soak time and peak temperature to see which factor is key, or non of them is key then you can try add some flux to see if better before change solder past
Electronics Forum | Tue Feb 25 06:34:50 EST 2020 | hexton
The reason the resistors are fitted at a later stage is to complete the circuit but the values that will be fitted depends on the frequency range desired. My preference would be to leave them free of solder, limiting the options for the process used
Electronics Forum | Wed Apr 22 12:22:46 EDT 2020 | mvargas
Hi, We are currently using WonderMask PX Peelable Solder Mask # 2222 for the wave rework process, but we are having a lot of trash in the pot. I understand that it is because the solder mask resists the pot temperature (500F) but not the rework tim
Electronics Forum | Thu Sep 23 08:08:12 EDT 2021 | SN
Hi. Anyone in this forum experienced the lead-free solder paste SAC305 and SAC405? What are the differences to expect for solder paste with SAC305 and SAC405? What is the effect of silver (Ag) alloy in solder paste? It was really appreciated if could
Electronics Forum | Mon Dec 27 19:10:58 EST 2021 | ppcbs
The component should float into place provided you have the correct amount of solder paste. Perform a solderability test on the pads. We have come across new components with oxidation that prevents wetting. This will cause components to not self ali
Electronics Forum | Fri Jan 21 12:36:52 EST 2022 | stephendo
Like I said a lot of people don't tape the gold fingers the first time they run them. After that they make sure the fingers get taped up because solder gets places you don't think it does and once it touches gold, that gold is contaminated. How do y
Electronics Forum | Tue Apr 05 12:32:16 EDT 2022 | proceng1
Here are the nozzles that soaked, but didn't get tinned. Since the solder joints also had yellow, I am wondering if the contamination is lingering in the solder pot, and getting on the joints. The Superior is never applied to a board. In the board
Electronics Forum | Wed Mar 15 11:34:28 EDT 2023 | proceng1
I'm sure this isn't the same situation, but we did have a selective solder machine with crazy dross and solder ball build up. Turns out the operator switched the low pressure nitrogen line used for solder level and the high pressure nitrogen line fo
Electronics Forum | Mon Jul 03 02:41:16 EDT 2023 | jalina
Hi Researchmfg, If upload picture would be great to interpret this question, anyway,if bridge occur defect should be adjudge NG product,to avoide this issue,firstly,bridge is a PCB defect that happens when solder gets to an area it shouldn't be. You
