Rick, Another method for attaching balls is SolderQuik preforms. The solder balls are embedded in water soluble paper. You just apply flux to the package and drop it in a fixture with the preform. Reflow - then moisten the paper and peel it away. The web site is at www.solderquik.com I think what you are looking for is JEDEC Publication 95 which covers most package dimension standards. See drawing MO-151 for the plastic ball grid array family. Also see section 14 on BGA's. The JEDEC specs are free of charge and available on the internet. What a great organization! Follow the link to Publication 95 then to MO-151. http://www.jedec.org You will need adobe acrobat to read or print the pdf file. You can get a free copy there as well. Hope this helps [log in to unmask] -----Original Message----- From: Rick Thompson <[log in to unmask]> To: [log in to unmask] <[log in to unmask]> Date: Wednesday, August 05, 1998 11:00 AM Subject: [TN] BGA Reballing >I'm looking for information, recommendations, equipment, etc. for BGA >reballing. Also, I've heard there is an IPC Spec dealing with BGA's, ball >size, etc. Does this exist, and if so, could somebody point me in the right >direction. > > Rick Thompson > Ventura Electronics Assembly > 2665A Park Center Dr. > Simi Valley, CA 93065 > > [log in to unmask] > > (805) 584-9858 voice > (805) 584-1529 fax ################################################################ TechNet E-Mail Forum 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's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################