486 snpb results

Electronics Forum: snpb (Page 16 of 49)

Lead Free solder

Electronics Forum | Sat Nov 21 12:22:00 EST 2009 | patrickbruneel

You are technically correct eutectic Sn/Pb was discovered by the ancient Egyptians in (XXX) BC much longer then 20 centuries. I was just referring to soft soldering in the electronics assembly industry :-).

Solder briding on QFP

Electronics Forum | Fri Jan 08 02:25:42 EST 2010 | graceytiu07

Happy New Year to All: Has anyone of you encountered a solder short on QFP pin yet there's no evidence of bridging in between gaps? I am using an SnPb solder paste.

solder question on crystal in DFN style package

Electronics Forum | Mon Apr 05 21:46:12 EDT 2010 | isd_jwendell

I have been using this series with AIM SnPb no-clean paste without problems.

sockets soldering

Electronics Forum | Sun May 16 20:47:25 EDT 2010 | aungthura

Thanks Dave I tried various sockts but all were failed.At SnPb profile,maximum- 230'c~240'c, the solder at sockets' pins not melted.Increasing to 250'C, the sockts were deformed.

ENIG reflow

Electronics Forum | Mon Jul 12 05:54:34 EDT 2010 | xps

Hi everyone, someone knows the correct parameters for reflow the smt devices using SnPb on ENIG finishing ? Someone suggest to use more temperature than others finishing, cause nickel barrier. Someone can confirm this ? There are handbooks or articl

Lead-free BGA in Tin/Lead Process

Electronics Forum | Tue Oct 05 15:20:45 EDT 2010 | scottp

I agree that in consumer electronics there may be nothing wrong with using a lead free BGA in a SnPb process, but that blanket statement can't be made for the high reliability market.

Wetting Issues - Humidity Related

Electronics Forum | Tue May 10 12:11:27 EDT 2011 | scottp

Do you have pictures and/or cross-sections of the non-wet? Is the HASL SnPb or SN100?

Alternative tin-lead solder pastes to minimize poor wetting on o

Electronics Forum | Fri Mar 23 10:00:38 EDT 2012 | isd_jwendell

I am a big fan of AIM SnPb solder paste. I currently use NC257-2 (no-clean, 89.5%), and recommend you include it in your evaluations.

PCB Surface Finishing for good solderability & rework

Electronics Forum | Wed Jul 15 12:20:52 EDT 2015 | dyoungquist

If you are using lead solder (SnPb) HASL is a good choice. If you are using lead-free (RoHS compliant) solder then I would recommend Immersion Gold (ENIG).