The following suggestions are provided by member/supporter Rick Shook of Lucent Technologies: "On item #1 - any nitrogen purge oven will work. On item #2 - yes - "Derating" tables are available - one will be included in the handling spec. i.e. J-STD-033 (This document is in the initial development phase as a joint effort of IPC and JEDEC.) On item #3 - Try Accu-seal Corp. 11055 Flintcote Ave. San Diego, CA 92121 (800) 452-6040 On item #4 - I don't know of one, I gave a tutorial on moisture sensitivity at the 1995 IRPS. Jack McCullen of Intel has material on this subject that he gives tutorials on at the ECTC. Hope this helps, Rick Shook Lucent Technologies" ***************************** >>> Charles Elliott <[log in to unmask]> 12/03/97 10:18AM >>> Subject: ASSY:BGA Moisture Handling 1997.12.0310:37 AM Hi TechNetters, I have some questions about handling of moisture sensitive BGA's (and other components). 1. Where can I get a low RH (<5% RH) oven for baking BGA's at low temperature (40'C) ? (Tape and Reel does not appreciate the 125'C bake for 24 hours!) What method are you using for baking (eqmt, temp., time) ? 2. Are there other methods used to control "repeated" exposures of components other than a "follower" which travels with the Reel / Trays ? 3. Where can I get a proper sealer for MBBs (moisture barrier bags) ? Is there a method to verify that the seal is sufficient ? 4. Is there a commercial training package available for handling of moisture sensitive components ? Your help is greatly appreciated. Charles Elliott NPI Process Engineering Newbridge Networks Corp. [log in to unmask] Jack Crawford, IPC Project Manger - Assembly 2215 Sanders Road, Northbrook IL 60062-6135 [log in to unmask] http://www.ipc.org 847-509-9700 x 393 fax 847-509-9798 ############################################################## 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. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ##############################################################