Electronics Forum | Fri May 29 13:37:18 EDT 1998 | Ryan Jennens
We are getting solder balls after reflow of surface mount components. We are using a no-clean paste and a new jar seemed to help for a little bit. Any ideas? Thanks in advance
Electronics Forum | Fri Apr 03 02:52:42 EST 1998 | Jacqueline Coia
At this moment in time we are using water soluble solder paste on our PCBs these are cleaned using water only, agitated with ultrasonics. After drying a white/grey residue is left around solder joints. Reflow profile is fine and a reliable wash proce
Electronics Forum | Tue Aug 14 20:47:29 EDT 2001 | Pete
Hi, would like to get good info on the above solder paste metal content regarding their advantage and disadvantage against each other and their effect on fine pitch solderability. regards,
Electronics Forum | Fri Nov 09 10:25:43 EST 2001 | steven
is it all right to reflow a BGA using a rework station but without applying a layer of solder paste on pcb. the diameter of the solder ball is 0.75 and the pitch is 1.5mm.
Electronics Forum | Thu Feb 28 06:24:50 EST 2002 | mrpsilva
Dear SMTneter, I am loonkig for some information about how to rework a BGA. Some technical info explaing how to put solder past manualy, soldering manualy, tips and so on. Where can I find something about? Thanks in advance Marcos
Electronics Forum | Wed Apr 17 22:43:54 EDT 2002 | ianchan
what process is that? can kindly describe? is it that technology where bricks of solder are "ready made" deposit onto PCB pads thus eliminating the need to solder paste print/dispense by machine?
Electronics Forum | Mon Aug 26 09:02:53 EDT 2002 | blnorman
Our requirement is 2 hours after printing before the board needs to go through the oven. Course we're in the humid south where on those 95%+ RH days we do get solder balling.
Electronics Forum | Wed Oct 02 00:08:26 EDT 2002 | praveen
Hi, We are using chip components with Silver Pladium coating and finding poor wetting. We are using the water wash solder paste with 2Ag and std. reflow profile. Any suggestion how ti improve the solder wetting for those components. Thanks,
Electronics Forum | Wed Oct 02 00:08:39 EDT 2002 | praveen
Hi, We are using chip components with Silver Paladium coating and finding poor wetting. We are using the water wash solder paste with 2Ag and std. reflow profile. Any suggestion how to improve the solder wetting for those components. Thanks,
Electronics Forum | Fri Oct 25 04:13:33 EDT 2002 | kcngoi
Hi, No clean mean is no need to clean. Of couse if you usin incompatibility solvent to clean, the white residue will appear. If cleaning is needed, source the suitable solvent and this always suggested by your solder paste supplier. regards
Capital Equipment Solutions - SMT | PCBA | TEST
Equipment Dealer / Broker / Auctions
113 S Main Street
Lodi, USA
Phone: 6083431779
