Electronics Forum | Mon Jun 27 03:32:52 EDT 2011 | samsim
It will not easy to measure solderability on PCB pad. Any metal tends to oxidize with time and temperature. Make sure your storage of the PCB is accordance to supplier recommended specification.
Electronics Forum | Mon Aug 14 17:23:20 EDT 2006 | russ
Can you just coat them with solder? Russ
Electronics Forum | Mon Jun 27 02:55:45 EDT 2011 | jamessunderland
Testing, huh... Appreciate the feedback. Thanks!
Electronics Forum | Sun Feb 26 17:40:35 EST 2006 | GS
Hi, just my comment, theoretically No Clean means no Ion Contaminants from Flux, but it some some case ion contamination (Cl-Br-F) could come out from raw PCBs, from Components, from fingerprints, etc. To incorporate a ROSE step in the pro
Electronics Forum | Fri Jun 24 09:32:53 EDT 2011 | kahrpr
Looking at the appearance of pads and solder joint is pretty subjective. Especially lead free people are all over the map on the physical appearance of pads and joints. The true test is solderabilty testing, weather it’s just looking for good wetti
Electronics Forum | Sun Feb 26 13:49:18 EST 2006 | masrimhd
Hi, We will run a no-clean wave solder process to assemble TV boards. What about incorporating a ROSE Test equipment (Ionograph, zero-ion, Omega Meter) in the process? Is it recommended, helpful or unnecessary? I�ve read about the use and limits of
Electronics Forum | Mon Feb 27 17:08:15 EST 2006 | GS
3,5 ugr/cm2 NaCl) or power components, or Raw PCB. Nothing with the solder process or fluxes. Ion Chromatography analysis was necessary to help understanding of contamination origin. When occasionally we run TIC on a NC assembled PBA (Paste ROL0 or
Electronics Forum | Thu Jul 14 19:12:40 EDT 2005 | sync40
Hi. In the past years I had made dozens of PCBs but now I am trying to get a professional finishing on them. The main problem is oxidation of the copper traces. Basically I use the silkscreen method to make the pattern in both layers and then etch. L
Electronics Forum | Wed Oct 11 13:40:20 EDT 2023 | proceng1
Agreed. Your "leads" are fairly small compared to the PAD area, so you leave your part lots of room to "stretch it's legs". One thing that I have trouble communicating to my operators is that placement does not have to be perfect, and neither does t
Electronics Forum | Tue Feb 28 14:32:26 EST 2006 | masrimhd
As I know, the encapsulation effect occurs only with rosin based fluxes. So if you have a PBA soldered using RA Flux, you should either wash it well, or leave it alone and it will be safe. For NC process the story is different because there�s no re
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