Electronics Forum: indium 8.9hf lead free paste (Page 1 of 5)

Lead free paste manufacturers

Electronics Forum | Tue Jun 08 11:06:34 EDT 2004 | adm

Hi Russ Try using Indium NC-SMQ230. Rgds

Lead free solder paste selection

Electronics Forum | Thu Jul 01 17:35:30 EDT 2004 | Sofia

Hi Everyone, I am just curious, is there a guidline that people follow for choosing their lead-free solder paste? In other words, how do people know whether they should use Indium alloy, or Castin (Sn/Ag/Cu), or whatever else? Thanks

Lead free components in 62/36/2 paste prob.

Electronics Forum | Wed Nov 23 17:33:23 EST 2005 | adlsmt

Are the components 100% tin plated? Thats what we are buying and we have no problem at all soldering with the same profiles we always have used and we use the same alloy as you but different mfg. We have not had problems soldering tin plated parts wi

Lead free rework of BGA

Electronics Forum | Thu Jan 18 13:13:53 EST 2007 | russ

won;t recommend a paste since I propose that you do not use but here is a flux I have had great success with Indium tacflux 20B IPN 84283 No clean flux, Use this alone without paste and your BGAs will work!! What was your package temp during th

Lead free Solder Paste troubles !!!!

Electronics Forum | Thu Sep 23 11:56:30 EDT 2004 | rkevin

We are printing on an assembly using SAC305 Alloy Sn96.5 Ag 3 Cu .5 with a no clean flux and getting virtually NO spread with either a ramp to spike or straight ramp profile. We are printing to standard FR4 board with immersion Ag finish. I am trying

Lead free Solder Paste troubles !!!!

Electronics Forum | Thu Sep 23 16:23:08 EDT 2004 | russ

Pb free pastes do not wet out like 63/37. Their are no claims from any manufacturers that I am aware of that say it will. Your "little solder balls" are likely caused from oxidization during reflow. What type paste are you using 3,4,5? What are t

Lead free Solder Paste troubles !!!!

Electronics Forum | Mon Sep 27 22:25:05 EDT 2004 | KEN

Minimal cost and low melting point??? Have you bought Indium or Bismuth based alloys lately? Tin/Silver, Tin silver coper-X you name it....there are trade-offs (cost / performance). Not all are exactly published or are suitable for all appliations

Lead free Solder Paste troubles !!!!

Electronics Forum | Tue Sep 28 19:54:22 EDT 2004 | KEN

If we are talking about Indium...then you will eventually be paying what everyone else is. The resource is diminishing especially with the application into the display markets. Same with silver. We are comming out of an all time low for silver....

Lead free Solder Paste troubles !!!!

Electronics Forum | Tue Sep 28 21:46:49 EDT 2004 | grayman

yes, in the future prices of China product will increase by 10 - 20 percent, but other may increase double. So still China price will stay competative. I am not for China,in fact most of our local companies went to China already, but hey, lets face

paste Sn42/Bi58 and Lead Finish

Electronics Forum | Tue Nov 06 22:37:35 EST 2012 | davef

Ryan ... "As for bismuth-based lead-free alloys, a lower melting temperature than that of tin-lead is offered together with a cost similar to that of tin [in the area of $3/lb]. Unfortunately, bismuth in soldering alloys tends to create embrittlemen

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