How to netlist the RWIDTH and RLENGTH properties of parasitic resistors in microns.

Document created by rick_sedlak on Nov 15, 2012Last modified by rick_sedlak on Aug 23, 2014
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In order to generate PEX netlists with the properties of the parasitic resistors: 

       

   such as:  RWIDTH, RLENGTH, and RLOCATION

 

  

expressed in units of microns,

  

use the RSCALE optional keyword to the PEX NETLIST rule file statement.

 

  

As described in the SVRF Manual:

 

  

   RSCALE value

   An optional keyword set, where value is a scaling factor that changes parasitic resistor

   properties, such as width, independently of device properties. The default value is 1.

 

  

In the Calibre Interactive PEX GUI

 

  

this setting is found under:

 

  

   PEX Options > Netlist > Advanced > Scale parasitic resistor properties

  

 

 

 

 

 

 

MG580619-image.jpg

 

  

Intentional device property units can be adjusted using the

    

    scale

    

Optional keyword to the PEX NETLIST rule file statement.

    

As described in the SVRF Manual:

    

The optional string scale must be a poritive floating-point number and may be a variable.

It specifies the size multiplier (in units of meters) for the L, W, A, P, AS, AD, PS, and

PD parameters of MOSFET, diode, and JFET devices. Set scale to 1e-6 meters to render the

parameters in microns; areas are then in square microns. The default value is 1.

    

In the Calibre Interactive PEX GUI

    

this setting is found under:

    

   PEX Options > Netlist > Format > Size multiplier for length units (in meters):

  

 

MG580619-image2.jpg

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