Hi All at Technet Land, Can someone explan why do I see bridgings only on the corner pins during rework? The package is a 1517 Pin BGA and the rework was done on the SRT rework station with only flux (No paste). When I run the same board and component through the reflow oven, I see no bridging. I tried lower the air flow and increase the spacing between the board and the chimney, but neither helped. Any input is greatly appreciated. Thanks all in advance. Ted Kong __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com --------------------------------------------------- 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 -----------------------------------------------------