Electronics Forum | Tue Sep 01 10:16:10 EDT 1998 | Mike Cox
| | We are experiencing shorting on a BGA. The part has a 1mm pitch with a 196 I/O count. The problem seems to pop up without warning & disappear in the same manner. | | Our pad design is .020" diameter pads with .025" solder resist diameter. Th
Electronics Forum | Wed Sep 02 08:52:13 EDT 1998 | Justin Medernach
| | We are experiencing shorting on a BGA. The part has a 1mm pitch with a 196 I/O count. The problem seems to pop up without warning & disappear in the same manner. | | Our pad design is .020" diameter pads with .025" solder resist diameter. Th
Electronics Forum | Tue Sep 26 10:44:28 EDT 2006 | Brad Courtemanche
Hi larry, don't know if you resolved your problem but if machine is picking part three times, rejecting all three but places number fourth your nozzle pickup is misaligned very slightly. During the first three pickups the nozzle is finally seating it
Electronics Forum | Thu Jul 15 22:24:48 EDT 2004 | rohman23
I am interested in getting feedback from anyone who has or is reeling different parts on the same reel for pick and place. Our department is extremely high mix, extremely low volume. I am also very new to surface mount, and any experience with this
Electronics Forum | Wed Oct 30 09:43:01 EST 2002 | gregp
Larger tighter spaced balls will present a problem in sealing the vacuum cup. There will be more leakage in this case. It really depends upon the application. The BGA you mention should not be a major concern. The bigger problems are with bigger
Electronics Forum | Tue Sep 26 11:05:44 EDT 2006 | slthomas
You might also have a dirty/sticky Z-rod resulting in the same problem, although ordinarily you'll see a lot of missed pickups as well.
Electronics Forum | Wed Jan 27 08:39:07 EST 2016 | thefinder
Hi to all. i resolved my problem. I just select "LOAD" option the the program run.
Electronics Forum | Thu Aug 17 14:35:47 EDT 2023 | lauri
Thanks for the response. We have checked everything except the stepper motor, which we will try. But as we were checking everything now we've developed a software (?) problem. A msg comes up "can't find DSP".
Electronics Forum | Mon Sep 25 09:42:51 EDT 2006 | slthomas
It sounds like it's just failing the laser align step. Try changing the align type for the part to "2" and see if it places it. If it's failing the laser align and you have valid part dimensions I can't help much but you might consider opening up th
Electronics Forum | Sat Oct 24 23:26:43 EDT 2015 | thefinder
Hi. Have a problem with a QSA 30 machine. show me a error at the end of set up program. CAN'T ANC OPEN and then show me on the next row message. invalid place position x. if anyone has any suggestions please tell me.
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