Electronics Forum | Wed Mar 15 09:52:34 EST 2006 | vicknesh28
It does leave a saddle like appearance on the solder
Electronics Forum | Tue Nov 04 12:58:17 EST 2008 | smt123
I have to agree with Patrick here. This image appears to show a board that is NOT HASL as there is what appears to be a copper pad in the upper portion of the image. But then again the arrow tip appears to be white and I woudl expect that to be red s
Electronics Forum | Sun Jan 18 10:13:59 EST 2004 | davef
Materials added to solder can change its appearance. For instance: * Gold in tin/lead solder is dull / grainy * Palladium in tin/lead solder is dull / grainy We do NOT advocate using visual appearance to define the appearance of a good and a bad so
Electronics Forum | Tue Jul 27 15:15:48 EDT 2004 | JSTARKEY
We have recently encountered a problem that we haven't seen before: The solder joint appears to be wetting ok and the solder is re-flowing but the appearance of the solder after re-flow is pitted. Using Kester 531, humidity around 41% temperature aro
Electronics Forum | Fri Sep 04 07:26:23 EDT 2009 | Sean
Dear Davef, Thanks for sharing with me..I observed this creeping corrosion tend to appear on PCB via hole rather than other PCB location. Why this problem did not appear on PCB traces? Besides, I also notice that this problem only appear on the PC
Electronics Forum | Wed Dec 13 13:11:06 EST 2017 | barryg
HI all. Recently we have been experiencing some PCB defects and so far it appears on a particular pcb. Components in areas, and the areas appears to be random, have shifted, skewed components. Most of these components, it appears the solder has flowe
Electronics Forum | Tue Jul 28 01:39:32 EDT 2009 | Sean
Hi All, I have some question about flux residue resulted from non clean process as following: 1) Under what kind of circumstances that flux residue could appear? This residue does not happen during production but did appear after some period of ti
Electronics Forum | Tue Jan 08 08:52:30 EST 2019 | ameenullakhan
Hi Steve, We did the below trials today. 1. Run the board in O2 environment. result : Yellowish appearance was observed. After DI water Cleaning : Still the yellow color is there. 2. Same board run secondary side. Result : First side board yel
Electronics Forum | Thu Dec 24 12:43:18 EST 2020 | marcelorotofrance
Hi Bob. When I initialize the system, all functions appears. In "Utilities/Initialize System Comm" option too. I have to confirm yet, but this problem appears to not happen in all programs. The red error message shows when I launch the program. My su
Electronics Forum | Tue Jan 16 15:02:25 EST 2001 | bdoyle
results are working for me. hm....I'll try in netscape. Relevancy actually scores based on the amount of times a certain searched term appears in the result and also where in the result it appears.
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