Fanout is a local process; fanout rules are not obeyed during active routing.

Fanout is important if it serves a purpose to be preserved (like protecting the BGA dogbones).

Otherwise, the power and ground lengths are controlled DYNAMICALLY with max_stagger rule. No rule - then no control.

Regards,

David


At 04:49 PM 5/23/2006, you wrote:

Why does router create unreasonably long and strangely twisted fanouts for ground and power signals?

Thanks,
Gennadiy
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Gennadiy Kiryukhin
Development Engineer
ATSI
8157 US Route 50
Athens, OH 45701
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Fax (740) 594-2875