I recommend that you check out the AirVac DRS24 or DRS26. These are excellent rework machines for the general range of 10 mm sqare to about 50 mm square package sizes on pwbs that are up to .125" thick on boards up to about 14" x 14" or so. They provide the best process control on the market. Anything larger or more demanding you will probably need a Summit (also an excellent machine), or a larger AirVac. For smaller flip-chip and up to a medium BGA size and medium board size, Metcal/Ok Ind. machines are very good. They have precise airflow control, which is needed for very small, low mass flip chips or small CSPs. They also have excellent vision alignment systems. Stay far away from infrared systems. They do not heat the assembly and/or the board evenly in the surrounding area, and the ability to soak the entire assembly is non-existent. Get a machine with a large bottomside preheat capacity, 1000 watts or better. It is critical to pre-heat the entire assembly evenly to prevent damage to the pwb during the rework cycle. Infrared is useless when working with silicon flipchips or CSPs. They are essentially glass mirrors and the infrared machines work poorly or not at all with them. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Blair K. Hogg Sent: Thursday, September 29, 2005 8:30 AM To: [log in to unmask] Subject: [TN] BGA Rework Station Recommendations I've proposed to management that since we will need a BGA rework station if/when we begin using BGAs, and since our current old pick and place machines aren't up to the task, and that since our initial usage at first will be low volume (5 to 10 per month) assemblies, that we look into procuring the rework station and use it for the initial placement of the BGAs after reflow (or maybe even carefully carry the placed assemblies to the rework station, place the BGA, the carefully carry back to the oven for reflow). Naturally, I got assigned the task of researching equipment and making the recommendation. Do you have any recommendations on what equipment would be best suited for this, or what you have and what you like and don't like about it? You can send replies offline if you would like. Thanks, Blair Hogg QA Manager GAI-Tronics Corporation ******************************************************************* This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept for the presence of computer viruses. www.hubbell.com - Hubbell Incorporated --------------------------------------------------- Technet Mail List provided as a 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------