Phil et al, The CR units have no trouble with these parts at around 100kv. I used boards with the parts on them when looking for x-ray units recently. Hope to have my CR unit next week. Rick -----Original Message----- From: TechNet [mailto:[log in to unmask]]On Behalf Of Phil Zarrow Sent: Friday, April 28, 2000 2:14 PM To: [log in to unmask] Subject: Re: [TN] I can't X-ray through this BGA!!! Steve- This might be a case of "you gets what you pays for" and might be one of the differences between the low-cost x-ray systems, and the more powerful, higher resolution systems, like CR and others. You might try examining the part with a CR and see what results. We'll stay tuned! I also think one needs the a resolution of at least 10 microns in order to determine if voids are in the 20-25% range and I don't think you get that on a benchtopper. Regards, Phil Zarrow ITM, Inc. Durham, NH ############################################################## 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 ##############################################################