Fellow TechNetters: Any beamers out there from Fishkill or Burlington Back in the days with Big Blue a fluorescence yellow solution was used to detect BGA interface voiding. The solution was detectable under black light. The sample and solution were pressurized to accomplish the task. I have TRIED to use the Steel Red DYKEM for a similar project with no success. Can one shared their experience with void detecting techniques and/or materials. In advance I will thank you for your timely response in this matter. Victor G. Hernandez --------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------