Electronics Forum | Thu Mar 15 06:01:24 EDT 2012 | andyhat
We run Mascots for leaded assembly on 15 stations for 20 product types in around 2500 variations...the system works brillianlty for us, but we experience programs going out of sequence for no apparent reason spontaneously - literally, an operator can
Electronics Forum | Thu Aug 01 06:09:01 EDT 2002 | mzaboogie
Hi Pete, The boards are HASL. The frequency is random. The solder balls are randomly deposited along the path of the select wave, not always along the component bodies. We are very careful regarding handling. There could have been contamination on s
Electronics Forum | Fri Feb 21 11:46:27 EST 2003 | larryk
Everyone is suspecting the epoxy. I'm just trying to understand why. Ryan stated he was having random chips falling off. If the epoxy or cure was the problem wouldn't he see the majority of the components falling off instead of just random?
Electronics Forum | Thu Sep 17 06:53:55 EDT 2020 | ameenullakhan
Hi Srini, Good day !! I the issue resolved. Which stencil design you used. We have similar kind of issue in 0402 package. very random failures. 192 part placement . randomly 1 or 2 component fail. Regards, Ameen
Electronics Forum | Mon Mar 20 06:21:42 EST 2006 | AR
Have a problem with Omniflo 5 (-97 vintage) pin chain conveyor. Occasionally the conveyor stops for a second or two, then makes a slight jerk, then stops again, makes a jerk etc. Then suddenly the problem goes away only to return next day (we switch
Electronics Forum | Mon Nov 27 12:25:02 EST 2000 | rabell
In that package, an online test is a part of the program. Questions are randomized by objective.
Electronics Forum | Fri Feb 25 09:30:29 EST 2011 | kahrpr
Was the void on the same pad for the 5 failures or were they random
Electronics Forum | Mon Feb 28 23:07:04 EST 2011 | kemasta
It is random. By the way, this board pass thought wave process, (BGA is at the top), will that cause the older short issue?
Electronics Forum | Tue May 22 10:14:22 EDT 2012 | patrickbruneel
are the briges like this (O-O) parallel to the wave or random parallel and perpendicular to the wave
Electronics Forum | Tue Jun 10 12:11:03 EDT 2014 | jorge_quijano
this is a Class II product. If I increase the openings... will I have random solder balls?
