Forum: SMT Production & Design
Thread: BGA Alignment
Date: May 02, 2012 10:10 AM
Author: isd.jww
Subject: BGA Alignment
I don't think hole alignment (registration to the copper layer) would be good enough for QFN and uBGA packages.
(http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=66248)