Electronics Forum | Thu Jun 21 00:23:55 EDT 2001 | Robert Sykoh
Hi, I am looking into lead free process. Do anybody has experience?? The composition used in SMT & wave. I heard Sn,Ag,Cu & Sn,Ag,Cu,Bi. What are the major differences and concerns. Besides, what are the capital investment required?? Any advice is
Electronics Forum | Mon Feb 07 15:53:12 EST 2005 | John S
I ran across a description of a SnAgCuIn variant of lead free solder that melts around 195C. Has anyone used such an alloy? Is it widely available? I haven't seen it marketed widely. Thanks John S
Electronics Forum | Tue Apr 05 07:46:47 EDT 2005 | py
lead free plating can create whiskers. you might use dim sn/ag/cu .
Electronics Forum | Tue Aug 22 09:49:39 EDT 2000 | galltp
Dr. Lee, We have seen a small decrease in shear strength for Pb/Sn plated components attached with Sn/Ag/Cu solder compared to components with a Pb-free finish. With the jump in the cost of Pd, we are struggling to define a practical Pb-free
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
Electronics Forum | Thu Oct 21 16:31:23 EDT 2004 | Tony
I have a component manufacturer that is using Sn/Ag/Cu plating on chip caps and resistors. Does anyone have any information on compatability with Sn/Pb paste. Are any changes in profile required? Is the reliability of the solder joint at risk? Tony
Electronics Forum | Mon Feb 07 20:05:01 EST 2005 | davef
Here's a similar thread: http://lists.smartgroup.org/SCRIPTS/WA-SMARTGROUP.EXE?A2=ind0403&L=smart-e-link&F=&S=&P=17013
Electronics Forum | Mon Feb 07 21:28:42 EST 2005 | Grant
Hi, That link above points to a weird forum, and I have no idea how to use it. Was there any reply to the original post on that forum? Some posts here on it would be good. Regards, Grant
Electronics Forum | Mon Oct 03 10:20:43 EDT 2005 | davef
Follow your component supplier recommendations. For instance: Xilinx says their lead-free alloy for their BGA spheres is SnAgCu, and liquidous is 217*C and they want you to peak at 230 - 235*C for good wetting according to their reflow guidelines.
Electronics Forum | Thu Mar 01 12:01:50 EST 2007 | flipit
Anyone ever try this Viromet 247 Sn/Ag/Cu/In aloy from Asahi? It has a reflow temp of 206 or 209 C? Thanks, Chris
