Electronics Forum: snag snpb (Page 1 of 1)

Sn/Ag Terminations with Sn/Pb Solder

Electronics Forum | Wed Jan 03 18:44:13 EST 2001 | Todd Koeppel

If we procure parts with a Sn/Ag termination, can we still use standard Sn/Pb solder pastes and the current reflow and wave processes?

Re: High temperature solder paste for gold plated MCMs

Electronics Forum | Thu Jan 27 14:49:53 EST 2000 | Glenn Robertson

Tuan - One of the reasons I suggested pre-tinning (aside from the negative effects of Gold on appearance and reliability) is the known slower wetting of Sn/Ag and Sn/Cu alloys as compared to Sn/Pb. If you don't have to be Lead-free, the high Lead

HMP Lead free solder?

Electronics Forum | Wed Aug 31 03:35:41 EDT 2005 | Slaine

I have a through hole product that is currently built with HMP solder(93.5Pb,5Sn,Ag1.5). We then dip it in 60/40 SnPb to give a solderable finish as HMP tends to oxidise. We need the HMP as our Customers solder through reflow ovens. Some customers w

Higher TG for PWB when soldering Lead Free (?)

Electronics Forum | Mon Mar 08 11:42:05 EST 2004 | Jay

Sn-Ag, Sn-Sb, and Sn-Cu based lead free alloys have a higher melting point than that of Sn-Pb eutectic system. Thus, it will be better if you can use a higher TG PCB for lead free purpose. But, also most of commercial products including SAC can be

Re: Sn/Ag Terminations with Sn/Pb Solder

Electronics Forum | Sat Jan 06 10:27:07 EST 2001 | Dave F

This is a very timely topic, as we drift [buffeted by the combined wind of everyone down-stream in the supply chain ] on waves carrying all of us from the land of lead to the land of no-lead. I want to say there was a recent trade journal article pu

Use and Restrictions of solder containing lead

Electronics Forum | Thu Jun 05 16:44:19 EDT 2003 | blnorman

The data we have is from an IBM report. Below 100�C the SAC reliability is almost double that of SnPb (-40 to 100�C thermal cycle). When the upper end temp is increased to 125�C the reliability drops to 75% of SnPb. I'd like to see the data that s

Re: high temperature solder alloy

Electronics Forum | Thu Oct 07 16:57:02 EDT 1999 | Glenn Robertson

| | I have a board, 4 spacers needed to be soldered on the board | | first with the normal 62Sn37Pb alloy. Then, capacitors are manually soldered on the boards. The density of the board is quite high. If we wave soldered capacitors first, there wi

Re: high temperature solder alloy

Electronics Forum | Fri Oct 08 08:26:03 EDT 1999 | Carol Zhang

| | | I have a board, 4 spacers needed to be soldered on the board | | | first with the normal 62Sn37Pb alloy. Then, capacitors are manually soldered on the boards. The density of the board is quite high. If we wave soldered capacitors first, ther

Palladium Silver surface finish

Electronics Forum | Tue Aug 24 14:49:58 EDT 2004 | jamyboy

Hi, I am trying to assemble a LTCC component > with Pd/Ag surface finish on to Sn/Pb/Ag solder > and Sn/Ag/Cu solder. I am passing it through a > reflow. I have observed poor wettability at the > solder-pad joint. Does anyone have information

Re: high temperature solder alloy

Electronics Forum | Fri Oct 08 10:08:48 EDT 1999 | Glenn Robertson

| | | | I have a board, 4 spacers needed to be soldered on the board | | | | first with the normal 62Sn37Pb alloy. Then, capacitors are manually soldered on the boards. The density of the board is quite high. If we wave soldered capacitors first,

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