896 oxide results

Electronics Forum: oxide (Page 1 of 90)

Copper oxide

Electronics Forum | Thu Jul 31 15:41:23 EDT 2003 | davef

Q: Could any of you guys tell me what exactly is this greenish thing ? A: No, but is not copper oxide. Copper oxide is brown, the color of a penny [here in the US] or an untreated copper laminated trace on a board. Many copper salts are greenish in

Copper oxide

Electronics Forum | Fri Aug 01 23:43:52 EDT 2003 | Yngwie

Thanks Dave, the residue appeared to be similar to fungus. First, I thought it could come from water soluble flux but, our plant only runs no-clean. So, can I concluded that this greenish "fungus" looking staff is not initiated from high hot air temp

Copper oxide

Electronics Forum | Thu Jul 31 11:33:51 EDT 2003 | yngwie

I faced problem over connecter's pin that were hot air soldered. This connector has 168 pins ( similar to the straddle connector ). The process is to apply the flux onto the connector's J-leads, and the hot air pencil were then ran thru' the leads to

Copper oxide

Electronics Forum | Sat Aug 02 08:12:05 EDT 2003 | davef

Q: So, can I concluded that this greenish "fungus" looking staff is not initiated from high hot air temperature setting ? A: Your temperature setting could have increased the growth rate of this crunchy looking stuff, but we wouldn't start there to

PCB OXIDATION

Electronics Forum | Sun Mar 07 09:31:01 EST 2010 | davef

If you could fill-in the blanks, it would be easier to help you. For instance, questions are: * What is is the oxide that you want to understand better? * What would like to do with the oxide? * Where is the oxide located? * What are the results of

Oxidation

Electronics Forum | Mon Nov 17 19:15:24 EST 2003 | Victor

I currently have an inventory of trim caps that have oxidation on the leads. I performed a dip test and am averaging 90% wetting on the leads. On product that has these components already installed is there any risk leaving the parts that have oxid