Hi Jim, when your process is fine you do not need x-ray! We have produced many boards with BGAs up to 600 balls for Motorola (3/4 G mobiles)several k a day, all components under shielding soldered in one reflow process forcing any repair to change the production into red! So we would recommend to setup process control with stencil/paste control by volume measurement, 100% AOI control BGA paste printing, pick and place with x/y/z measurement and closed short control loop and reflow temperature control. Good luck, Torsten Best Regards KRISTRONICS GmbH Torsten Hagge team leader HW development & tech. projectmanager Gewerbegrund 5-9 24955 Harrislee Telefon +49 (0) 461 7741-624 Telefax +49 (0) 461 7741-642 [log in to unmask] www.kristronics.de Place of jurisdiction: Flensburg, commercial register: HRB 1433 FL CEO Dipl.-Ing. oec. Thormod Ohm VAD-Id DE 811182059 Bank account: Deutsche Bank AG Flensburg, account 4216610, bank number 21570011 IBAN: DE32 2157 0011 0421 6610 00, BIC: DEUT DE HH 215 Please consider the environment before printing this e-mail -----Ursprüngliche Nachricht----- Von: TechNet [mailto:[log in to unmask]] Im Auftrag von Jim West Gesendet: Montag, 5. Mai 2014 16:26 An: [log in to unmask] Betreff: [TN] Production with BGA's Hi everyone, A happy Monday to you all! How many of you have experience with BGA's? We are looking at possibly having new designs that require BGA's. I have never ran, nor has my currently company, ran a process with BGA's and I'm trying to get my hands around everything needed to be successful. I believe my biggest concern will be the soldering process (material and process) and inspection afterwards. I feel pretty confident my paste printer, pick and place and reflow process will be capable of handling the BGA process based on feedback from the equipment manufacturers for those machines. I know this is a very broad question, but what do you guys think my focus should be on based on your experience? I have some time to prepare, so any feedback will be greatly appreciated. One specific question I do have is, will I need 100% X-Ray inspection? Thanks, Jim ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________