Electronics Forum | Thu Jul 31 14:53:14 EDT 2014 | emeto
Hi, Essemtec and Mydata are big companies in the industry that manufacture machines . Manncorp is a reseller.
Electronics Forum | Wed May 09 10:39:03 EDT 2001 | davef
The two first level cuts at comparing placement machines are: * Placement rate * Range of component capabilities This boils-down approximately to machine price. Virtually, everyone's feeders are priced similarly. Go to "Circuits Assembly" magazine
Electronics Forum | Sun Mar 01 14:51:55 EST 1998 | Vincenzo Longobardo
From several months I am investigation about the VOIDS PERSENCE and his important as reliability. One question now is : It is possible that on the BGA components the voids are already present into the balls, before the mounting on the pcb ? If you ha
Electronics Forum | Mon Dec 19 12:21:09 EST 2005 | Amol Kane
from what i know, Tg is important from thermal stresses point of view. board warpage increases greately when Tg is exceed
Electronics Forum | Fri Jan 25 05:22:47 EST 2008 | dekiper
Hi, You could try other types without brass shim. It's also important to use a good tool that is adjusted properly. Contact me and I will help you with quality samples and instructions. http://www.dekitools.com // Per Gester
Electronics Forum | Fri Aug 24 09:29:08 EDT 2007 | jgrootkoerkamp
Solder balls with wave soldering can have different causes. The two most important are the solderresist and the flux. I have similar problems, after changes the flux type 90% off all solderballs are gone. KR, Joris Groot koerkamp
Electronics Forum | Wed Aug 27 13:08:30 EDT 2008 | vladig
Td - is the degradation temperature for a laminate (board), while Tg - is glass transition one. There is one more (even more important) - delta Tg. They characterize the quality of the laminate material. Regards, Vlad www.sentec.ca
Electronics Forum | Fri Mar 19 10:27:42 EDT 2010 | karlo
No clean pastes leave more flux residues. These can result in void formation and inhibtion of underfill curing. Selection of an underfill that is compatible with the flux residue is important. One company that has written about the effect of flux
Electronics Forum | Tue Feb 14 22:20:10 EST 2017 | swestheimer
Hi Dave, Thank you for your inputs as they were good suggestions. I however let out one important detail and that this is IMS material and not glass reinforced so I think that there is more bending going on during processing than warping and twistin
Electronics Forum | Mon Aug 04 12:28:42 EDT 2014 | dyoungquist
Mydata (recently changed name to Micronic) will be more expensive than Manncorp but from my experience using Mydata, they are well worth the money. Tech support (in the USA at least) is very good if you go through them to buy the machines. You can
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