Electronics Forum | Wed Sep 19 11:04:49 EDT 2012 | davef
Melissa ... Are you calling the blobs of solder on the pads solder balls?
Electronics Forum | Tue Jul 04 09:32:54 EDT 2017 | pavel_murtishev
Evtimov, Indeed. What are you interested in: - selective soldering machines - soldering robots (laser etc) ? Regards
Electronics Forum | Wed Jul 05 07:03:24 EDT 2017 | emeto
As I am soldering SMT electrolytic capacitors - I guess, soldering robot.
Electronics Forum | Thu Jul 20 12:23:00 EDT 2000 | Dave F
Bob: Please help us understand the effect of changing to lead-free solder paste on our processes better. Compare the following for tin-lead and lead-free solders: * Size of stencil apertures � amount of solder necessary for a reliable solder conne
Electronics Forum | Sun Aug 23 20:24:59 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 printing any solder paste there
Electronics Forum | Sun Sep 09 10:53:05 EDT 2001 | bentzen
For reflow soldering, you are correct ! The higher surface tension of the solder paste in nitrogen atmosphere can increase the number of solder bridges if the component or solder paste print is inaccurate. Another defect that might increase is tomb
Electronics Forum | Tue Dec 04 09:48:43 EST 2001 | davef
Defining the thickness of solder between the lead and the pad, J-001 states "Properly wetted fillet shall be evident." J-001 is available from http://www.ipc.org. Factors that affect this are: * Amount and composition of solder * Amount and compo
Electronics Forum | Fri Sep 19 15:51:01 EDT 2003 | David Bonilla
Hi I am having solder short defects on the bottom side with SMD devices that run through the Wave solder. May you let me know any IPC guildelines about the spacing, orientation or any other design guidelines for avoid solder defects with SMD device
Electronics Forum | Wed Feb 16 17:28:14 EST 2005 | davef
Greg: As we understand it, in your situation: * One 0805 lead solders to board properly * Another 0805 lead does not solder On the 0805 lead does not solder, there does the solder go? * On the pad * On the component lead A common solderability test
Electronics Forum | Mon Aug 06 17:29:07 EDT 2007 | gsala
Hi Gents, I heard people having concernes by using 2512R SMD resistors due to potential solder joint reliability defect(CTE mismach among ceramic/alumina+solder+PCB) when soldered by lead free alloys (SAC like). Any experience/news about solder j
