Electronics Forum: poor soldering detection (Page 3 of 110)

HDMI Connector poor contact

Electronics Forum | Tue Aug 10 05:32:42 EDT 2004 | praveen_madaan@jabil.com

Hi, Has any body experienced the problem of poor cotacts on HDMI connectors. The connectors pins are gold plated and we see some kind of white residue on the gold pins.How to check if this is a flux residue?We are using No Clean flux in wave solderin

HDMI Connector poor contact

Electronics Forum | Tue Aug 10 07:10:11 EDT 2004 | abraham

Praveen, White powder residue can be produced if you clean the No clean flux residue with isopropyl alcohol. Check whether you are using any IP for local cleaning. In case you want to clean the noclean flux residue ( as per the requirements of conta

ENIG poor wetting

Electronics Forum | Mon Jul 29 16:43:55 EDT 2002 | mcm4me

I have a customer with up to 8% scrap from one board supplier and 1% from another supplier for solder dewett and no wet over ENIG finish with mask defined pads. Initially I suspected mask residue on pads because of the no wets but I have come to find

ENIG poor wetting

Electronics Forum | Thu Aug 01 08:58:47 EDT 2002 | Rick Lathrop

Good morning Dave F. I am not going to try to touchup the solder pad until I get surface analysis work done, don't want to ruin the evidence. I am getting XPS work done not XRF, XPS is X-ray Photoelectron Spectroscopy and can see very thin films of o

Palladium poor wetting

Electronics Forum | Thu May 25 03:31:17 EDT 2006 | slaine

Hi I manufacture ceramic parts that have a terminations that are palladium/platinum/silver or any combination of the 3. Termination Ink usually consists of 3 main parts the alloy, glass frit and binder. Binder is to help bind everything together whi

Palladium poor wetting

Electronics Forum | Tue May 23 21:14:22 EDT 2006 | davef

First, where the temperatures that aare mentioned in the original post measured? Second, it sounds like the PdAg component terminations are not seeing enough heat [your soldering iron touch-up proves this]. Your 232*C peak is the absolute minimum s

DIMM connector area with poor solderability

Electronics Forum | Tue Nov 22 21:57:17 EST 2016 | Miche

Hello Dears, I'm a small CS Engineering at Taiwan.There are some problem on DIMM connector area with poor solderability at ODM. It was random on Dimm connector area and the SMT area is fine. At the same time, there were other PCB vendor's product whi

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.

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

Electronics Forum | Thu Mar 22 13:06:50 EDT 2012 | smtmfgeng

Does anyone have any insight on alternatives to Indium NC-SMQ 92J solder paste for minimizing poor wetting on parts with oxidized leads (see datasheet here: http://www.dtsprocess.com/contents/articlefiles/6-SMQ92j.pdf). I am considering setting up a

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

Electronics Forum | Fri Mar 23 03:41:19 EDT 2012 | grahamcooper22

try Almit Sn62 HM1 RMA V14L ....its the best no clean lead paste for wetting...I sell it and it has solved wetting problems many times when users have used other pastes


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