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Date:
October 19, 2009 03:43 PM
Author:
Deni
Subject: UIC GSM and NiPdAu pads
We have a problem with QFN IC's with NiPdAu plated pads. Our ULC's don't see the pads due to the almost ideal reflection. Vision sees the pads almost black. As we don't have OAL-cameras (which can help in this case, I assume), I am thinking of back-lit nozzles, as QFN's have pretty good defined case outline and then center using MELF algorithm...?
- Deni
(http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=60137)
