Electronics Forum | Tue May 13 07:40:14 EDT 2014 | sarason
There are many alloys of silver solder for higher temperatures mostly used in plumbing There are also alloys which are available in paste form used in the manufacture of hybrids. sarason
Electronics Forum | Fri Jun 03 10:04:51 EDT 2016 | sara_pcb
I am planning to attach 1760 pin BGA. The pitch is 1mm and Balls are SAC alloy type. The PCB is for aerospace use and expected to work in harsh environment. What is the recommended PCB surface finish and the attachment process for such a applicatio
Electronics Forum | Sat Jan 19 11:37:23 EST 2019 | davef
Thermodynamically, alloying increases free energy & entropy. You are basically adding disorder to the lattice by alloying so it is easier to melt. [Laxmi Narayanan R, Practical Metallurgist!!!!!]
Electronics Forum | Fri Jun 21 13:41:48 EDT 2019 | slthomas
Another question - how would you classify a "pure tin" (supplier term, not mine) alloy with .12% Ni specified? is this a common Pb-free HASL alloy?
Electronics Forum | Tue Apr 27 19:13:04 EDT 2021 | astarotf
Solder balls, can be excess paste by opening ST. Do you see the curve still working pasty with lead with alloy "63Sn / 37Pb alloy" has defects?
Electronics Forum | Fri Oct 01 01:25:55 EDT 2021 | sn
Thank you Djo for your sharing. By the way, do you know that which field/product will prefer to use SAC405 paste instead of SAC305 or lower Ag wt% alloy solder paste?
Electronics Forum | Fri Oct 01 02:46:47 EDT 2021 | sn
Thanks, Evtimov. In terms of mechanical drop performance, can we conclude that the higher Ag alloy will have poorer drop shock performance relatively compare to those with lower Ag? The Ag3Sn is a good IMC for welding strength?
Electronics Forum | Tue Oct 05 10:38:43 EDT 2004 | palmerg
Major Japanese OEMs investigated numerous lead-free alternatives, including alloys containing bismuth and/or zinc, such as Sn/Ag/Bi/Cu, Sn/8Zn/3Bi and Sn/58Bi. However, over time, the Japanese industry has moved toward Sn/Ag/Cu alloys. The Japan Elec
Electronics Forum | Fri May 12 14:35:58 EDT 2006 | patrickbruneel
Steve, You're asking the right questions, don�t listen to sales pitch and stick with the facts. But you're in for a tough ride with lead-free because there is just not enough data and experience with the lead-free alloys as of yet. Every month you h
Electronics Forum | Wed Sep 27 23:52:28 EDT 2006 | fctassembly
Hello Steve, Yes, there are differences in the various alloys and I have described briefly below these differences: SN100- a common name for 100% tin that is used to increase the tin content in 63/37. SN100C-Name for Tin/Copper/Nickel/Germanium all
.gif)
