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Reply To: | TechNet E-Mail Forum. |
Date: | Fri, 6 Jun 2003 08:44:04 +0800 |
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Hi Wee Mei,
That will only be applicable to PBGAs. For CBGAs, the pad size should remain 100% the ball size cos the balls for the
CBGAs does not collapse during reflow. Just my 2 cents.
Regards
Yak Peng
Lum Wee Mei wrote:
> Hello,
>
> Just wonder anyone can provide the reason or how the pad on the BGA substrate
> is between 75 - 80% of the ball size?
>
> Regards,
> Wee Mei
>
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