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How do I create irregular pads in packages?

Former Member

Hello,

 

What if I want to create odd shaped pads in a new library package? I have a

part that has a heat sinking ground pad attached to a pin on the IC for

example.

 

Thanks,

 

Aaron

 

 

 

Parents

  • Aaron Hall schrieb:

    Hello,

     

    What if I want to create odd shaped pads in a new library package? I have a

    part that has a heat sinking ground pad attached to a pin on the IC for

    example.

     

    Thanks,

     

    Aaron

     

     

     

    Use for example a SMD or a pad as basis (you need it to

    connect a signal with it) and use for example the POLYGON

    command to draw the final shape.

    Be sure to draw a solder stop mask/creamframe in the

    layers tStop/tCream, as well. It might be wise to switch off

    the automatic mask data generation for pads/smds with

    CHANGE STOP/CREAM OFF.

     

    Unfortunately DRC reports an error in the layout, but you can

    approve it in the Design Rule Check (v5).

     

     

    --

    Mit freundlichen Gruessen / Best regards

    Richard Hammerl

      CadSoft Support -- hotline@cadsoft.de

      FAQ: http://www.cadsoft.de/faq.htm

     

Reply

  • Aaron Hall schrieb:

    Hello,

     

    What if I want to create odd shaped pads in a new library package? I have a

    part that has a heat sinking ground pad attached to a pin on the IC for

    example.

     

    Thanks,

     

    Aaron

     

     

     

    Use for example a SMD or a pad as basis (you need it to

    connect a signal with it) and use for example the POLYGON

    command to draw the final shape.

    Be sure to draw a solder stop mask/creamframe in the

    layers tStop/tCream, as well. It might be wise to switch off

    the automatic mask data generation for pads/smds with

    CHANGE STOP/CREAM OFF.

     

    Unfortunately DRC reports an error in the layout, but you can

    approve it in the Design Rule Check (v5).

     

     

    --

    Mit freundlichen Gruessen / Best regards

    Richard Hammerl

      CadSoft Support -- hotline@cadsoft.de

      FAQ: http://www.cadsoft.de/faq.htm

     

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