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   Thin-Film Resistor, Surface Resistivity       

Thin-Film Resistor, Surface Resistivity

 

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Netlist Format

An instance of a thin-film resistor with surface resistivity specified has the following netlist syntax:

ATFRSxxx n1 n2 W=val P=val RS=val COMPONENT=ms_thinfilm_rs SUBSTRATE=substrate_name

n1 and n2 are the names of the nodes attached to the resistor. The entry COMPONENT=ms_thinfilm_rs identifies the element.

The entry SUBSTRATE=substrate_name identifies the microstrip substrate model name selected for the design (see Selecting a Microstrip Substrate). See the Microstrip (MS) Substrate for information on this substrate type.

 

 


Thin-Film Resistor, Surface Resistivity,
Instance Parameters

Parameter

Description

Units

Default

P

Line length

Meter

10e-3

W

Line width

Meter

1e-3

RS

Sheet resistivity

mOhm-cm

100

Netlist Example

ATFRS2 Port1 Port2 W=0.001 P=0.01
+ COMPONENT=ms_thinfilm_rs SUBSTRATE=FR4

where FR4, the selected layout technology or substrate type, has a definition such as:

.SUB FR4 MS( H=7.6200e-004 Er=4.4 TAND=0.02 TANM=0
+ MSat=0 MRem=0 HU=0.00508 MET1=1.72413793103448
+ T1=1.7145e-005 RGH=0mil)

 



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