Electronics Forum: copper (Page 1 of 170)

beryllium copper

Electronics Forum | Tue Mar 14 12:56:07 EST 2006 | robhs

Q: Is anyone aware of any solderability issues that may exist when soldering beryllium copper parts (in this case spring contacts) to a PCB using standard Pb63/Sn37 solder paste/wire?

beryllium copper

Electronics Forum | Tue Mar 14 16:26:45 EST 2006 | patrickbruneel

BeCu is not solderable without plating Cu, Sn, Ag, Ni etc. The solder joint will only be as strong as the bond strength of the solderable plating to the BeCu Pat

raw copper on pcb

Electronics Forum | Thu Jun 07 05:11:42 EDT 2012 | cp38260

Hi, I have pcbs (Duroid/RT 5880) with raw copper, soldered in vapour-phase chamber at 230 degrees Celsius. During soldering, copper gets tarnished. Cleaning with Vigon A250 removes the tarnished layer. Indeed, in the VigonA250 techn. datasheet it is

contamination on copper

Electronics Forum | Thu Apr 15 11:15:30 EDT 2004 | patrickbruneel

Pure (red) copper oxide is green, its not a residue its just oxidation. In your case water and heat will accelerate the oxidation process of unplated or unprotected pure copper. The best way to avoid this from happening is use a socket with tin or n

Thickest internal copper layer?

Electronics Forum | Thu Jan 10 13:24:36 EST 2013 | kenkay

What is the thickest internal copper layer we could get in a pcb?

Thickest internal copper layer?

Electronics Forum | Tue Jan 15 10:19:39 EST 2013 | boriskilk

For a multilayer board the thickest internal copper layer we will do is 0.062".

Effect of copper

Electronics Forum | Tue Jul 04 21:56:23 EDT 2017 | anhsang38

Hi Everyone I wonder know the effect of copper in solder paste, solder bar. Thanks.

contamination on copper

Electronics Forum | Thu Apr 15 08:23:47 EDT 2004 | prod

hi, Having put a copper socket trough a wave soldering machine, and then through a DI wash, the boards have been dried and after a few days a green residue has been noticed on the copper. any suggestions? not drying properly maybe? or could it be th

SAC copper level control

Electronics Forum | Wed Sep 27 08:28:05 EDT 2006 | AR

Hi all All you wave soldering people, have you had any trouble in keeping the copper level of your SAC solder pots under control? How do you combat the gradual rise of copper contents owing to dissolution from through-hole component leads etc.?

SAC copper level control

Electronics Forum | Wed Sep 27 10:02:24 EDT 2006 | aj

Hi, We are using SACX and have not noticed any rise in copper. I do know that there are Solder Bars available without the Copper to try and bring the level under control. aj...

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