Electronics Forum: oxidation solderability (Page 1 of 63)

PCB oxidation

Electronics Forum | Wed Jun 08 13:49:48 EDT 2011 | sonofptolemy

Hello, I am having a problem with HASL PCB's after it comes back from the stuffer. To me it looks like oxidation and it causes poor wetting. This leads to a bunch of problems all of which have different symptoms but the cause is this oxidation proble

solderability problem

Electronics Forum | Fri Nov 11 04:06:46 EST 2005 | arnold

we are manufacturer of molded type transformer. we have a trim and form process and its damage the pins of our units. the TIN insulation was being damage so we decide to immediately solder (wave soldering) the units to avoid oxidation. my question is

problem in solderability

Electronics Forum | Tue Sep 02 12:43:12 EDT 2008 | stepheniii

That could lead to oxidation of the leads and worsen solderability. It's much better to make sure the components are handled properly and not exposed to moisture. The reason for baking is moisture in the body not in the leads. Why is no one suggest

problem in solderability

Electronics Forum | Wed Sep 03 12:29:47 EDT 2008 | omid_juve

That could lead to oxidation of the leads and > worsen solderability. It's much better to make > sure the components are handled properly and not > exposed to moisture. > > The reason for baking is > moisture in the body not in the leads. > > W

solderability and hasl thickness

Electronics Forum | Fri Sep 12 13:14:33 EDT 2003 | Mark Kostinovsky

A little adition to Norm's statement: Sn-Pb intermettalic compounds do not accept solder as they are (even without being oxidized).

problem in solderability

Electronics Forum | Thu Aug 28 13:15:59 EDT 2008 | omid_juve

how can i be sure that the device isn`t affected by moisture ? i mean that if the pins are oxidized due to the moisture how can i remove this oxidization ?

problem in solderability

Electronics Forum | Sat Aug 30 12:36:05 EDT 2008 | omid_juve

we are doing many experiment on this problem 1)sn63 pb37 solder paste +normal profile 2)sn62 pb36 ag2 solder paste +normal profile 3)pb free solder paste + pb free profile 4)sn63 pb37 solder paste + pb free profile but still the problem exist so i th

BGA solderability / moisture

Electronics Forum | Mon Feb 11 21:54:14 EST 2002 | davef

LONG TERM Your plans to buy a vaccuum bag resealer and a batch drying oven sound good as you say, but you�re correct. They will not help with this current situation. SHORT TERM If your connections are clean, free of pits and holes with a smooth,

BGA solderability / moisture

Electronics Forum | Mon Feb 11 13:28:36 EST 2002 | stepheno

We have some BGA's that don't solder very well. They weren't properly stored in regards to moisture protection. The balls look dull and rough. After reflow there seemed to be a diffinate line between the balls and the solder on the PCB's. I think

Re: Poor solderability

Electronics Forum | Thu Feb 10 13:01:29 EST 2000 | Wolfgang Busko

Hi Russ, yes, I did get the homeplate info, thanks. Thought that it looks that way, only didn�t know how to deal with that expression. Now your problem: it�s hard to tell without seeing it actually. All I wonder is this 80sec above liquidous, at what

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