Electronics Forum | Mon Dec 04 11:46:41 EST 2006 | samir
SMTNetters, I have a product coming down the pipeline that we'd like to make pure double sided reflow, it'll be RoHS product, and the hope is... we'll be able to solder the thru-hole stuff by screen printing solder paste and reflow soldering. Anybo
Electronics Forum | Tue Aug 24 14:49:58 EDT 2004 | jamyboy
Hi, I am trying to assemble a LTCC component > with Pd/Ag surface finish on to Sn/Pb/Ag solder > and Sn/Ag/Cu solder. I am passing it through a > reflow. I have observed poor wettability at the > solder-pad joint. Does anyone have information
Electronics Forum | Thu Jul 22 22:18:12 EDT 2004 | davef
Notes from an AIM No-Lead Presentation ... Wave Soldering * May require a higher pot temperature than tin/lead: 255-265*C * May require a change in liquid fluxes to compensate for the poor wetting of some alloys and high thermal stresses of the wave
Electronics Forum | Fri Oct 21 12:22:56 EDT 2016 | horchak
Looking at your picture I'm not sure you have a wetting problem. Who determined it's not wetted? Are you having functional failures? Is this an isolated incident? What was your TAL? Is the pad on the suspect ball possibly smaller than the others, or
Electronics Forum | Thu May 05 09:50:29 EDT 2005 | patrickbruneel
Hi Hannu, You just gave a very realistic and practical view of the lead-free dilemma. The main reason that your coil coating doesn't get removed is because of the inability of lead free alloys to wet the surface and conduct the heat. Higher temperat
Electronics Forum | Thu Sep 21 02:58:45 EDT 2017 | kubabel
Thank You! I will try to go in touch with them...
Electronics Forum | Tue Feb 15 06:30:23 EST 2005 | Hannu
Hello all Is somebody doing leadfree soldering with a dip soldering machine? What kind of alloy are you using? What temperature are you using? Any problems with wetting/soldering quality? Regards Hannu
Electronics Forum | Mon May 09 01:30:40 EDT 2005 | Hannu
Hi Pat, And thanks for the sympathy :) This thing with ultrasonic transducer, is it something tried and trusted or is this a new idea for improving the wetting behaviour of leadfree alloys? This is completely new to me, can you please elaborate on
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,
