Hi ya'll! I've got a project coming where it's called out to use a SN96 solder. Not having the characteristics on the top of my head, I went to a web page to refresh my memory. A SN 96 alloy is 96.5% Tin, and 3.5% Silver. It's a eutectic alloy with the liquidous and solidus temperature at 221-degrees C. The page stated the typical use was in applications where standard lead based solders did not meet the safety or strength requirements. It also went on to say that a SN96 was not recommended against gold plated surfaces. Guess what? I was told the PCB is gold plated! So what is the issue, gold embrittlement? Undesirable intermetallics? Would sure like to know something about this... Appreciate any info! -Steve Gregory- ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or 847-509-9700 ext.5365 ##############################################################