Ken,

Not that silly.

As a preference, I try to have the schematic engineers stay away from
any ceramic case sizes larger than a 3225.  Rule of thumb.

Once we had a problem on a long thin board using ceramic 4532 packages.
Due to flexing of the PCB the cap terminals cracked right off the cap.
Rotating the cap perpendicular to the length of the board helped 
alleviate the problem.

Hope this helps.

Dave



Bloomquist, Ken wrote:

>Since it's Friday this could be a joke but I don't really think so.
>
>Design Engineering asked Manufacturing Engineering, (believe it or not),
>"Do you have any guidance on the maximum size we want to use for ceramic
>SMT caps?"
>
>I believe their concern is coming from the potential for cracks during
>processing. We currently and probably will for quite some time use SN63
>for all our processing so the higher temperatures are not an issue.
>
>Any guidance would be appreciated,
>
>KennyB
>
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-- 
Dave Seymour, CID+
Catapult Communications Inc.
800 Perimeter Park Dr, Suite A
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