check the warping of the BGA PWB carrier pre and post reflow.... as the PWB
warps, it may be pushing the solder...another check point may be your stencil
design/process....
Marcelo
-----Original Message-----
From: Poh Kong Hui [SMTP:[log in to unmask]]
Sent: Thursday, December 10, 1998 10:07 AM
To: [log in to unmask]
Subject: [TN] BGA short
Hi Technetters,
I am facing a weird problem.
One of the board that we make, is having short underneath the BGA.
However, every single short is always at one of the 4 corners of
the BGA.
Is there anyone facing such an issue ? Could someone advise me how
to solve.
Poh
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