On Wednesday, May 21, 2003, at 14:55 Australia/Sydney, Julio Jumpa
wrote:

> How do I tell the autorouter not to route my DIP ICs in the top
> layer...I
> mean, DIP ICs, if placed in the top layer, need to be soldered in the
> opposite (bottom) layer...right?

Correct.

> ...so why does eagle begins traces from some
> IC's  pads in the top layer and some other traces in the bottom
> layer...?

Because EAGLE assumes (correctly) that if you have a 2 layered board,
then each signal layer is available for tracks.

If its a home made board there is no reason why you can't just solder
top and bottom of the ICs

Otherwise, if you insist on NOT allowing EAGLE to route to ONLY the
ICs, then you can draw a polygon around the IC pads on the trestrict (I
think) layer.

Regards,

Sean

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