Electronics Forum | Thu Jul 24 21:20:58 EDT 2008 | srt
Hi, Now we also facing voiding issue after rework .But this only happen to 1 BGA from diffrent PCBA.We also already change 3 type solder paste and fine tune the profile follow solder paste spec but problem intermitten happen again.Pls help to advic
Electronics Forum | Fri Jul 25 14:36:28 EDT 2008 | wavemasterlarry
Crap dang it! This new computer I got off a guy at the vette show is really getting to me. Sorry about my earlier post above. The reason I am here is because there seems to be a need. I rescanned my wave creds for eveyrone. And no I am not posti
Electronics Forum | Mon Jul 28 14:30:22 EDT 2008 | grics
Take a look at this. Remember, these are only guidlines and can not replace any paste specs. As Real Chunks said, a profiler will be of HUGE help. We use this to determine what our top side temps are and to see if we have any problems with heat sen
Electronics Forum | Mon Jul 28 13:03:12 EDT 2008 | wavemasterlarry
They make greeting cards that do this to. You open em up and they make all kinds of jibbersh. My nephew sent me one for my birthday and it scared the hell outta me. dang thing was playing some kind of rap or rock or something they call music these
Electronics Forum | Wed Jul 30 07:22:17 EDT 2008 | davef
Not sure what software you have, but somehow you must be accumulating costs by process and you probably know [or can figure-out] how many boards you processed. From this, you can calculate a standard cost of a process. Continuing, there is a thread,
Electronics Forum | Mon Aug 04 12:29:12 EDT 2008 | realchunks
If you are getting top side wetting, I doubt if this is a Delta-T problem. It also could be there is a lot of flux on the top side of the board stuck between the connector and the board. This is easily checked by fluxing and not running th eZ axi
Electronics Forum | Mon Aug 04 16:28:49 EDT 2008 | grics
Hey Patrick, thanks. The area that is dark (half circle) is where the camera was. It is the same color as the above. But you may be correct still. I also noticed that the majority of the solder balls were along the "Dark" blue depression around the
Electronics Forum | Tue Aug 12 13:40:08 EDT 2008 | ck_the_flip
GR@ICS: Are you drag soldering or point-to-point soldering? Keep in mind. Drag soldering mimics wave soldering. Molten solder is contacting and dragging across the solder mask. Keep in mind, too, that "semi-matt" or "semi-gloss" will also tend to
Electronics Forum | Mon Aug 04 04:58:23 EDT 2008 | stiva
Hi Sound like the same problem that i had. The machine after it had warmed up when initialising would drive the z rod down with the quadalign on checking for the nozzle height (I think). To me it seemed like an overheating problem as after allowin
Electronics Forum | Wed Mar 25 18:29:47 EDT 2009 | badnewz
My Quad IVc's will also do the same thing. Mine are equipped with CyberOptics scanners, not QuadAlign. The Cyberoptics scanners do go bad and once they do, they get very warm to the touch and at the same time, if the Quad is reset, the theta axis wil
