Electronics Forum | Tue Jan 20 13:33:14 EST 1998 | Justin Medernach
| This is a re-post of my previous message. I typed my Email address wrong in the other message. I am sorry for any inconvenience caused. | Is there anyone who can tell me what is the maximum allowable soldering temperature when soldering a TQFP (Thi
Electronics Forum | Thu Jan 15 15:13:50 EST 1998 | justin medernach
| I have a problem! The solder on my pc boards look great comeing out | of my reflow oven. They go thrue the rest of the prossese | and at the end at the qc station it's cold or whitish or gray not shiny. | does any one have a idea on how to correct
Electronics Forum | Mon Dec 22 16:02:22 EST 1997 | Justin Medernach
| what is your experience about the presence of the voids in the joints ? | Are they dangerous and when ? Vincenzo, Voids in solder joints can be caused by a number of factors. Let's begin with the flux vehicle in your soldering media. If the prope
Electronics Forum | Fri Mar 29 11:12:34 EST 2002 | stefwitt
I can not tell you which machine types are the majority in the market. For these numbers you should contact Charles Henry from Ceeris. I guess with the term low quantity / high volume you mean low mix / high volume which means low variety of differe
Electronics Forum | Sun Jul 28 19:50:55 EDT 2002 | fastek
Wrong Sai. Quite a difference between assembling a board or a PC and building/assembling a screen printer. These systems being built in China will be for the China or Asian market only. MPM and DEK spent decades trying to establish themselves as the
Electronics Forum | Tue Sep 15 14:12:36 EDT 1998 | Justin Medernach
| Unfortunatly there are too many variables to play with that you can't make a general rule for the vibration time. | However, I suggest you increase the vibration time and lower the vibration force ( AC voltage ). For an SO 8, I would use 600 ms for
Electronics Forum | Tue Aug 25 20:33:31 EDT 1998 | Karlin
| | | | Hi, | | | | Does anyone has experiences in reflowing Ceramic BGA and found solder wicking ? Solder wicking has the syndrome that solder being wick from the pad and ended up in the leads. | | | | We have rule out the possibility of not printin
Electronics Forum | Thu Jun 25 09:53:04 EDT 1998 | Earl Moon
| | Has anyone had experience with placing BGA on gold plated boards. I thought I read a while ago there was a problem with embrittlment causing cracked joints. If anyone has experience with this your feedback would be great. | | Mike | Mike, | You
Electronics Forum | Sat Apr 11 14:31:16 EDT 1998 | Gary Simbulan
| | I would like to invite everyone to share/discuss | | information/knowledge/experience they have with | | the req's that are assumed to be valid for the | | temperature/time relation in the process of reflow | | soldering Pin In Paste, Intrusive R
Electronics Forum | Tue Apr 14 15:50:45 EDT 1998 | Bob Barr
Justin, Thanks for the response to my dilemma. For once it's not just me! The parts seem perfectly solderable, but I will try the modification to the profile you suggested. I wonder if the retention clips may be letting loose from the holes they a
