Electronics Forum: sn62pb36ag2 and gold (Page 1 of 10)

SN/PB soldering with gold plated pcb

Electronics Forum | Sun Apr 24 09:12:00 EDT 2005 | davef

We're not sure what your customer is talking about either. Gold and tin form an intermetallic compound [IMC] that can cause poor solder connections. To minimize the potential of a problem, keep gold to less than 3 percent of the metal. [Search the

Tin Lead Silver BGAs

Electronics Forum | Tue Apr 26 07:56:12 EDT 2016 | joelperez

Hello SMTnet team, I have read before that silver content on solder joints is ok at around 2% total silver content. Does anyone has experience using SN62/PB36/AG2 BGAs on hard gold (10 micro inches) PCB surface finish? Any drawbacks? Thanks Joel

Re: 2% silver solder paste

Electronics Forum | Thu Apr 15 09:45:34 EDT 1999 | Terry Keen

We process both tin/lead plated boards and gold plated boards in our surface mount group. I have used Sn62/Pb36/Ag2 solder paste on all gold plated boards to help prevent gold scavaging. To reduce the amount of different solder pastes we have t

2% silver solder paste

Electronics Forum | Tue Apr 13 08:08:33 EDT 1999 | Rob Palson

We process both tin/lead plated boards and gold plated boards in our surface mount group. I have used Sn62/Pb36/Ag2 solder paste on all gold plated boards to help prevent gold scavaging. To reduce the amount of different solder pastes we have to bu

Re: 2% silver solder paste

Electronics Forum | Mon Apr 19 02:38:41 EDT 1999 | Brian Sloth Bentzen

We process both tin/lead plated boards and gold plated boards in our surface mount group. I have used Sn62/Pb36/Ag2 solder paste on all gold plated boards to help prevent gold scavaging. To reduce the amount of different solder pastes we have to

Immersion gold and BGAs

Electronics Forum | Wed Aug 31 12:33:25 EDT 2005 | Jaya

I have expirence running,double sided Imm gold boards recently which ed up a lot of solderability issue. The Imm gold need to be slightly more control during reflow oven area on it's profile.

Immersion gold and BGAs

Electronics Forum | Fri Aug 26 09:48:11 EDT 2005 | David

I have heard that there are problems using immersion gold on PCBs when working with BGAs. Is this correct? Is white tin more suitable?

Immersion gold and BGAs

Electronics Forum | Fri Aug 26 09:57:21 EDT 2005 | russ

The Immersion gold is not a problem with BGAs specifically but "black pad" which can be present anywhere. The unfortunate thing with BGAs is you cannot see it. Personally I hate white tin. It is okay for single sided boards running no-clean, but c

Immersion gold and BGAs

Electronics Forum | Fri Aug 26 14:15:16 EDT 2005 | David

Where could I find more information regarding the double sided reflow and flux problems with white tin?

Immersion gold and BGAs

Electronics Forum | Tue Sep 06 09:30:34 EDT 2005 | russ

I read it in Florida Cir-teks own literature. http://www.florida cirtek.com

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