What's the minimum space between FlipChips for letting the eye-foot in between and down enough to see? /Ingemar -----Original Message----- From: Stephen R. Gregory [mailto:[log in to unmask]] Sent: den 2 juni 2000 19:35 To: [log in to unmask] Subject: Re: [TN] Other visual tests under a BGA possible? In a message dated 06/02/2000 12:04:54 PM Central Daylight Time, [log in to unmask] writes: << Dear Members! With interest I follow your discussion about X-ray testing of BGAs. I would like to know, are there any other visual tests possible, to look under a soldered BGA? For example, with a very tiny camera using a glass-fibre-cable, say 0,5mm diameter? Is something like this in use? Or makeable? Would need a very tiny optical system? I got the impression, to solder BGAs reliable is a very delicate thing, isn't it? Sorry for my stupid statements, but I haven't any experience in BGAs nor testing of PCBs. Jurgen. >> Hi Jurgen! The system is already out there. Go to: http://csitechnet.com/sld001.htm and you'll find a online presentation about the whole thing. I'm trying to get management to buy it. -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 Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ############################################################## ############################################################## 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 Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ##############################################################