Electronics Forum | Mon Jul 01 16:34:46 EDT 2013 | wpierowski
So that is common when the temp on the wash is high? The temp was adjusted for a flux that required a higher temp. How much of an issue is this tin oxide?
Electronics Forum | Thu Sep 24 08:05:59 EDT 2020 | majdi4
In my opinion, it is not possible to eliminate the oxidation in a component because oxidation it is not removable .. the only solution is to apply a mechanical operation (scraping) and then tinning the part..
Electronics Forum | Fri May 13 20:32:39 EDT 2022 | swilson
Any Suggestions on How to remove oxidation on connector pins. The boards have been sitting for awhile and can't be washed due to transformers and open relays that are on the board.
Electronics Forum | Mon May 16 21:16:50 EDT 2022 | SMTA-64387687
Can you brush some flux on the connector pins and run them through a heat cycle, hot enough to activate the flux, but not enough for solder to melt or component damage? That should remove most of the oxidation. Then, you can run it through your regul
Electronics Forum | Fri Feb 19 02:11:11 EST 1999 | Pete Sorenson
| During inspection and test we find leads which do not get soldered. Some are because of insufficient paste, but with others everything looks right. This will only happen on 1 to 2 pins, and it is not isolated to a specific type of ic or location o
Electronics Forum | Fri Jul 30 16:02:49 EDT 1999 | Earl Moon
| | I received a request from customer to assemble ceramic substrate (alumina oxide)that printed with a low temperature Copper thick film conductor (the overglaze layer is polymer). The Copper pads are exposed without any coating. | | This ceramic su
Electronics Forum | Wed Jul 28 20:14:22 EDT 1999 | Dave F
| While inspecting incoming PCBs we detected around all plated-through-holes (only there and all in the same place) some halfmoonshaped light rings that match obviously only with the pink ring symptom shown in the IPC-A-600 chapter 2.5.2.. That would
Electronics Forum | Fri Oct 18 06:33:28 EDT 2002 | johnw
Here's one for you lot, dos anyone have a method or a vendor that can clean the ball's of BGA's of oxides to bring them back to 'new' conditions ? I've got a bathc of components that are fairly old and I get some issues with soldering them which I b
Electronics Forum | Fri Oct 18 07:14:51 EDT 2002 | cyber_wolf
Have you tried using a paste with a more aggressive flux? Our main paste is Indium, but whenever we run into oxidized parts or have soldering problems due to oxidation on pads we use an older Alpha WS paste called WS609. The drawback of this paste is
Electronics Forum | Thu May 05 09:17:58 EDT 2005 | jimmiem
I tried soldering to several of the black pads and was successful, the solder stuck with no hesitation. so i guess this is not truly "black pad"? would that be a correct statement? What causes this blackening that looks like oxidation under the mic
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