Hi All, We have some SMT LED's that were exhibiting solderability problems and investigation with the SEM/EDS revealed that the base metal is composed of a copper alloy that contains about 10% nickel. Does anybody have any experience with this material? Do they require higher reflow temperatures similar to Alloy 42? Any information would be appreciated. Thanks Scott **************************************************************************** ************************* Scott M. Severson QA/FA Lab Manager "Space and Time are not conditions in which we live, Benchmark Electronics Inc. but modes in which we think." 4155 Theurer Blvd. Winona, MN 55987 ---Albert Einstein (507)452-8932 **************************************************************************** ************************* ############################################################## 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 ##############################################################