Try the IPC website <http:\\www.ipc.org>.
There is a land pattern calculator for customizing along with some standard
patterns.

I would recommend verifying the land pattern against the manufacturer's
part spec.  I have found there can be quite a variance from one product to
another. Do a double check if you are using Xlinx parts.  If your design is
dense, you may not find a generic land pattern will work for you.  Then you
can use the calculator to customize the land pattern to your standards or
process.

Good Luck!
Neil D...

At 01:26 PM 1/9/98 -0500, you wrote:
>Our CAD designers are having trouble finding IPC recommended landpatterns
>for TQFP devices.  Does anyone have any information that might be
>useful?
>

    ____________________
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