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UPDATED 09-12-2011 / ADDED 2 V5-6000s Cards



Rampage Chip Full Reballing

 
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osckhar
Site Admin
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Joined: 09 Dec 2005
Posts: 558
Location: Spain

PostPosted: Tue Mar 03, 2015 12:59 pm    Post subject: Rampage Chip Full Reballing Reply with quote

Hello,

Own a Rampage Brings Up board with test socket is an amazing tool for diagnose but the main problem is insert/remove the chip balls are deteriorated until card can looses the contact between test socket and pads.

I had to do a full Reballing with leaded balls for my own Chip once it stopped to work for bad contact. Process is not easy since there are not stencils for such size BGA and second problem is the tape over the chip is very delicated and it protects balls are not in contact with.

TAKE OUT SOLDER BALLS


CLEAN PADS


BUILD A CUSTOM STENCIL BGA


CHECKING THE PROCRESS


HEATING CHIP BGA


PROCESS ENDED


PERFECT REBALLING


Regards,
Oscar.
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