Electronics Forum: 2f4 (Page 1 of 1)

Solder balls on pads - lead free

Electronics Forum | Mon Sep 17 03:59:52 EDT 2012 | stivais

Hi guys, We have an interesting case we haven't seen before (see the picture below) http://postimage.org/image/lu2f4ae55/ Solder balls form on unpopulated pads after reflow. 1. Reflow profile is fine. 2. Stencil thickness / paste volume is also f

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