Electronics Forum | Sat Sep 18 14:37:00 EDT 1999 | Earl Moon
| | | | | | | | | Dave, I'll respond by paragraph: | | | | | | | | | Brian: | | | | | | | | I like Ag2 also. I prefer it over both 63/37 and 60/40, if the price is not a factor. Yes, gold rips through eutectic and near-eutectic solders like
Electronics Forum | Fri Sep 17 03:55:45 EDT 1999 | Brian
| We have some SMT components with gold plated leads. They're actually LCC led packages. A good solder alloy to use would be Indium / Lead to reduce tin dissolution into the gold and avoid the resultant brittle intermetallic compound. However, a reco
Electronics Forum | Fri Sep 17 15:01:05 EDT 1999 | Dave F
| | We have some SMT components with gold plated leads. They're actually LCC led packages. A good solder alloy to use would be Indium / Lead to reduce tin dissolution into the gold and avoid the resultant brittle intermetallic compound. However, a re
Electronics Forum | Fri Jun 03 15:19:32 EDT 2022 | dwl
I don't recall thicknesses off the top of my head but brittleness becomes an issue more for gold plating then ENIG. .125 um should be fine. also, gold ain't cheap so its unlikely your PCB fab will get anywhere near the max tolerance. On the other e
Electronics Forum | Wed Dec 23 10:25:00 EST 2009 | spitkis2
Is it possible to reflow leaded or lead-free solder paste onto chrome plated pads? Thanks.
Electronics Forum | Thu Dec 24 10:34:51 EST 2009 | davef
isd.jww: First, the original poster is talking about pads, not component leads. Second, you're correct that chrome plated component leads can be attached by spot welding or crimping a solderable tab to the lead and then soldering the tab to the boa
Electronics Forum | Wed Dec 23 14:05:13 EST 2009 | spitkis2
Thanks for the replies. I haven't soldered to a chrome plated pad in the past and have my doubts so thought I'd ask here. Our customer supplied the material and for some reason decided to change the plating to chrome. We only found out about this
Electronics Forum | Wed Dec 23 12:24:18 EST 2009 | davef
We doubt that you can successfully solder to chrome
Electronics Forum | Mon Dec 28 22:01:06 EST 2009 | isd_jwendell
How about silver epoxy? Could you use a PnP with a dispenser?
Electronics Forum | Wed Dec 23 12:46:51 EST 2009 | stepheniii
Can you etch where you want to solder to? But you would need harsh chemicals to do that. The whole point of chrome is to not chemically react.
