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Wed, 2 Feb 2000 11:57:34 -0800 |
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The square pads will give you better release of the paste, also the square
pads will help you see if the bga has reflowed properly when you x-ray them.
-----Original Message-----
From: Larry Jindra [mailto:[log in to unmask]]
Sent: February 2, 2000 10:34 AM
To: [log in to unmask]
Subject: [TN] MiniBGA pad conflicts
I'm a little confused. J-STD-013 recommends 22 mil pads for 1.00mm pitch
BGAs, but the guideline for IPC7527 suggests 15 mil round pads with a square
paste opening. Is anyone out there having good luck with one or the other?
Why the large disparity?
Thanks-
> Larry Jindra
> TRW/Avionics Systems Division
> mailto:[log in to unmask] ph (858) 592-3424 fax (858) 592-3606
>
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