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Have a question about CadSoft EAGLE?  Ask our Expert, Richard! (Archive)

nlarson

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Richard Hammerl

Richard is an engineer with 16 years experience in EAGLE customer support and is waiting for your questions.

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  • Dear Richard,
     
    I’m trying to use FDMS86101FDMS86101 ( farnell code 1885754 ) and I’m having difficulties drawing the component Pad.
     
    Do you know if there is already the component available in a library?
     
    In the library I’ve created the different areas with gave me errors in  the eagles DRC and more important don’t able me to generate thermal pad around. Please see attached picture. Do you have a solution for this?
     
    Danielimage
  • in reply to DSFe

    Hi Daniel,

     

    as far as I know no such package is currently available in our libraries. So you have to create it by yourself. Place 8 SMD pads and draw a polygon or place the large SMD so that it covers the drain contacts. Using a polygon will cause DRC errors in the layout. The reason is that you can't name the polygon in the package editor and assign it to a certain signal. This is not a problem at all, you can approve these error messages.

     

    In case you use a SMD for the big area, you should place an additional pin in the symbol. You won't have DRC errors in the layout then.

     

    Hope this helps.

    Regards,

    Richard

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  • in reply to DSFe

    Hi Daniel,

     

    as far as I know no such package is currently available in our libraries. So you have to create it by yourself. Place 8 SMD pads and draw a polygon or place the large SMD so that it covers the drain contacts. Using a polygon will cause DRC errors in the layout. The reason is that you can't name the polygon in the package editor and assign it to a certain signal. This is not a problem at all, you can approve these error messages.

     

    In case you use a SMD for the big area, you should place an additional pin in the symbol. You won't have DRC errors in the layout then.

     

    Hope this helps.

    Regards,

    Richard

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