Author Topic: Isolated ground planes - how to?  (Read 2203 times)

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Offline LabSpokane

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Isolated ground planes - how to?
« on: April 10, 2015, 05:57:48 am »
How does one create an isolated ground plane in Eagle such as one to go beneath a crystal?  I've tried rectangles and polygons and am baffled as to how to do it aside from building a custom IC footprint with the ground plane in there as a SMT pad. Is there a better way?
 

Offline H.O

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Re: Isolated ground planes - how to?
« Reply #1 on: April 10, 2015, 07:36:14 am »
Use the Polygon tool to draw the contour of the plane.
Use the Name command to give the polygon a name matching the net to which you want the polygon connected.
If it's a polygon within a polygon you use the Rank setting of the polygons to tell which one is "subtracted" from which - so to speak.
 

Offline LabSpokane

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Re: Isolated ground planes - how to?
« Reply #2 on: April 11, 2015, 04:58:06 am »
Use the Polygon tool to draw the contour of the plane.
Use the Name command to give the polygon a name matching the net to which you want the polygon connected.
If it's a polygon within a polygon you use the Rank setting of the polygons to tell which one is "subtracted" from which - so to speak.

Perfect.  Thank you!
 


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