Author Topic: Thermal pad questions  (Read 2430 times)

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Offline alank2Topic starter

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Thermal pad questions
« on: April 03, 2019, 12:34:44 pm »
I've got a polygon with thermal enabled and some 6mm x 6mm buttons where the ground pads have thermal pads.  What options do I have in eagle (old 7.3) to lessen their connection to the polygon?  They are not high current and don't need the 4 traces to ground.  My hardship is that they can be a pain to solder because the heat is being leached by the plane itself.  If I turn the polygon thermal option off, then they are solidly connected to it with no breaks which is even worse.  I was thinking of some way to separate them from the ground plane and perhaps I just route a wire from them to it if that is possible.  Ideas?
 

Offline rachaelp

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Re: Thermal pad questions
« Reply #1 on: April 03, 2019, 01:58:26 pm »
The width of the thermal relief connections between polygon pours and pads connected to them is directly proportional to the line width used for the polygon. If you want these to be less then reduce the line width of the polygon until they are at your desired size.

Best Regards,

Rachael
I have a weakness for Test Equipment so can often be found having a TEA break (https://www.eevblog.com/forum/chat/test-equipment-anonymous-(tea)-group-therapy-thread/)
 
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Offline alank2Topic starter

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Re: Thermal pad questions
« Reply #2 on: April 03, 2019, 02:06:26 pm »
Excellent; many thanks!!!!
 


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