Electronics Forum: termination (Page 1 of 94)

Component termination contain silver

Electronics Forum | Thu Apr 20 14:08:34 EDT 2006 | cw

hi All, recently i have received some parts with the lead turning black, and i then found out the leads are silver plating, is that going to be a problem? or it is simply a cosmetic issue? pls advise ASAP!! thansk a lot!!

Ag/Pd termination reflow soldering issues

Electronics Forum | Wed Apr 18 04:22:43 EDT 2007 | ray

I facing dewetting problem on Ag/Pd termination(chip component)during reflow process. The solder wetting is pull to terminal side and exhibits dewetting. Any one ever face the same problem and any solutions for the problem?

Solder wick on Ag/Pd termination

Electronics Forum | Mon Oct 22 20:41:32 EDT 2007 | jkhiew

Hi Dave, The solder has tended to wet the component termination of Ag/Pd (chip capacitor) but has not wetted the pads, whereas the solder has wetted both termination & pads when using Ag/Ni/Sn finishes. Thks

Ag/Pd termination reflow soldering issues

Electronics Forum | Wed Apr 18 08:14:20 EDT 2007 | davef

Silver palladium termination * AgPd-terminated capacitors are designed for conductive adhesion. Reflow or wave soldering is not recommended. [EPCOS Multilayer ceramic capacitors, Soldering directions, October 2006] * CONDUCTIVE EPOXY BONDING. Epoxy c

Solder wick on Ag/Pd termination

Electronics Forum | Mon Oct 22 05:04:08 EDT 2007 | jkhiew

Hi, Recently we have encountered solder wicking on components termination (total of 13 pcs of components on one pcb)with Ag/Pd finishes during lead-free reflow soldering. The pcb is LF HASL surface finish and LF solder paste composition is SAC305.We

Ag/Pd termination reflow soldering issues

Electronics Forum | Wed Aug 29 11:07:39 EDT 2007 | mikecollier

I am being asked to perform the same evaluation now with a Au/Pd termination varistor. We currently use a Pb/Sn process with an RMA flux. The manufacturer of the device recommends going to a 2% silver paste. What is the intended advantage with 2%

Solder wick on Ag/Pd termination

Electronics Forum | Mon Oct 22 21:34:36 EDT 2007 | davef

Double check on this, but we have this little voice in our heads telling us that your AgPd termination is intended for conductive adhesive applications. Check with your component supplier. We recall a thread on SMTnet [ http://www.smtnet.com/forums

Ag/Pd termination reflow soldering issues

Electronics Forum | Thu Apr 19 16:54:32 EDT 2007 | flipit

I don't suggest using Pd/Ag or Ag/Pd terminated components unless you are forced to use them. You often see a line of demarcation that suggests a poorly wetted solder joint. I have had bad experiences with Pd/Ag terminated capacitors. Even when so

Ag/Pd termination reflow soldering issues

Electronics Forum | Wed Apr 18 06:18:53 EDT 2007 | pavel_murtishev

Good afternoon, Huh. My sympathy. We have the same issue. Check this: http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=11637&mc=3 BR, Pavel

Solder wick on Ag/Pd termination

Electronics Forum | Mon Oct 22 10:51:48 EDT 2007 | davef

You say, "we have encountered solder wicking on components ..." We expect to see wicking on solder connections. Maybe we're just using different terminology. Please describe the problem that you're seeing.

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