Eagle Layout, polygon fill

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#1
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Hi Guys,

I am trying to use a create a ground layer using the polygon fill. However around one of the chips, it does not want to fill it in.


In the emptiness there is no signal on the bottom layer, it is just empty, so I am not sure why eagle does not fill it.

I looked at the other layers to see if there was something in there that would stop the filling and found nothing.

I made the part library myself, so maybe I did something wrong when I made the part, if so I have no idea what I did wrong.

I am using Eagle 5.10 .

Any help would be greatly appreciated.

Regards,

Alan To

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OK STRANGE..
Do you are sure at it is not a restriction area in this package? Se all layer: 39 to 43.
If it is some think, you muste edit the component footprint.
Thierry

Thierry Pottier

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A long shot . . . does the part uses a heatsink?

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no it's the device's white area. the square around it is in dimension layer and polygons keep away from them. you can get rid of it by creating a new part or in DRC in Dimensions in the Copper/Dimension box change the value to 0.

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it is a wrong way to use dimension layer to make a component.
Move "dimention" to layer 21 of this component.
Thierry

Thierry Pottier

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Dimension is used to define the edge of the board. As it stands, I think that Eagle believes that there's a square cut-out under your chip 8)

What is the purpose of the square?
If it's for documentation purposes, then I think it needs to be on the tDocu or Document layer. If it's the silkscreen, then it I think it needs to be on tPlace (and probably thickened and moved away from the pads).

Nigel Batten
www.batsocks.co.uk

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Thanks guys,

It was a dimensions layer problem.

Regards,

Alan To