Dear Experts: I've been asked to investigate this concern, so here goes: When someone in my company mentioning using BGAs for a space application, one of our customers raised a concern about dendrite growth. Unfortunately, this is the only information I have. I don't know any specifics regarding the assembly or the application (or the customer, for that matter) or where or what kind of dendrites. All I know is that I'm now deemed the "company expert" on BGAs, so I got the task. Has anyone heard of a dendrite growth problem associated with BGAs? Thanks for your help. Jim Marsico AIL Systems Inc. (516) 595-5879 [log in to unmask] ################################################################ 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 ################################################################