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How to calculate areaCap?

baumanets

techfile contain section (for example)

electricalRules(
   characterizationRules( 
      ( areaCap   metal1   1.4e-4 )
      ( edgeCap   metal1   4.0e-5 )
      ( sheetRes    metal1    0.040000 )
)
How to calculate areaCap?
 

 

 

Parents

  • Are you aware that this represents the area capacitance coefficient, so when you know the area you just multiply by this coefficient in order to work out the capacitance?  The capacitance can be derived from the permittivity, area and separation distance by a formula - so the coefficient is based on the dielectric material and the plate separation to give a coefficient that you can multiply by the plate area.

    C = \frac{\varepsilon A}{d}

    The fab or foundry will have derived and measured such coefficients, and they provide the information in the technology file.
    Hopefully this helps you?  You question is pretty vague, so if this does not help, provide more details.

    Regards,

    Lawrence.

Reply

  • Are you aware that this represents the area capacitance coefficient, so when you know the area you just multiply by this coefficient in order to work out the capacitance?  The capacitance can be derived from the permittivity, area and separation distance by a formula - so the coefficient is based on the dielectric material and the plate separation to give a coefficient that you can multiply by the plate area.

    C = \frac{\varepsilon A}{d}

    The fab or foundry will have derived and measured such coefficients, and they provide the information in the technology file.
    Hopefully this helps you?  You question is pretty vague, so if this does not help, provide more details.

    Regards,

    Lawrence.

Children
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