Hello TechNet's Studying the use of BGA in Space applications, we are dubitative about the possible use of soft solder ball using SnPb + Bi What do you know about these particular alloys for that sort of application ? What interest ? What reliability for long life assemblies ? What risks ? Thank you in advance, Michel ################################################################ TechNet E-Mail Forum 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's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################