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Hi Bev,
 What I have done in the past is follow our standard uBGA rework
procedures. Of course we are reworking QFNs (similar to LGAs), 14mm X
14mm, 28 pads, mounted on HASL finish .062 FR4 Substraight. Our process
included prepping the lands and then applying paste via micro stencil
for component replacement.

>>> [log in to unmask] 10/15/2003 6:47:54 AM >>>
TechNetters,
Any words of wisdom on Land Grad Array rework?  The good news is that
our boards are thin.  We are a no-clean house.
regards,
Bev Christian
Research in Motion

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