Electronics Forum | Fri Apr 23 08:20:25 EDT 2004 | babe
Sometimes solder balling is related to oxidized paste or paste that has sat on the pcb too long before reflow. Mostly it is related to process, sorry... Too slow or too fast of a reflow ramp rate. Heating up an assembly too quickly will not allow the
Electronics Forum | Fri Apr 23 11:03:07 EDT 2004 | smtpro
nc-smq92 had a problem with sticking to squeegee blades. 92j was suppose to fix that problem....
Electronics Forum | Tue Apr 27 17:37:30 EDT 2004 | Ren�
We have switched over form Indium's nc-smq92 to > nc-smq92j and are experiencing a ton of solder > balls. Even if the print is dead on we still seem > to be getting them. We never seemed to have this > problem with old paste unless the print was
Electronics Forum | Fri Apr 23 07:50:50 EDT 2004 | smtpro
We have switched over form Indium's nc-smq92 to nc-smq92j and are experiencing a ton of solder balls. Even if the print is dead on we still seem to be getting them. We never seemed to have this problem with old paste unless the print was way off. Is
Electronics Forum | Fri Apr 23 10:54:59 EDT 2004 | cyber_wolf
92J is the upgraded version of 92.
Electronics Forum | Fri Apr 23 11:59:42 EDT 2004 | smtpro
Yes we are doing bed of nails testing.
Electronics Forum | Mon May 10 11:33:29 EDT 2004 | adm
Hi Can anyone tell what is a Ramp to Spike Profile? Rgds
Electronics Forum | Fri Apr 23 10:51:12 EDT 2004 | patrickbruneel
If the previous type was working fine why did you change to another type of paste??
Electronics Forum | Wed Apr 28 09:15:15 EDT 2004 | smtpro
Yes we are using a 7 zone and a ramp to spike. How do you handle your solder paste and what printing methods do you use?
Electronics Forum | Fri Apr 23 09:29:06 EDT 2004 | cyber_wolf
We have had this EXACT same problem. How can I contact you?
