Problem with CycloneIII custom board

Yes, you're right. Nobody could find this kind of error.

But if I had known that the problem is an layout problem then I had wrote my threat other.

But we assumed that the design rule checker from our layout tool checked also this kind of errors. Now we know that is not the case.

Additional to my threat some external experts checked the schematic and the layout data and they found nothing.

By chance the error was found and we are happy.

Until now we don't use this feature with IPC-356 netlists.

But this is an very good tip.