Geometrical dependences, stress effects and junction asymmetry
Scaling Equations
Effective dimensions
Introduction of the number of fingers.
Effective length and width for current model.
Effective length and width for charge model.
Physical length and width for parasitic charges and self-heating.
Process parameters
Gate to interface coupling parameters
Drain Induced Barrier Lowering parameters
Mobility parameters
In this model, UO is integrated into GE. This changes the signification of the THESAT related global parameters, as detailed in the velocity saturation parameters part.
Series resistance parameters
Velocity saturation parameters
Since UO has been included in GE (see (3.48)), THESATL is, in L-UTSOI, closely related to the saturation velocity itself.
Saturation and Channel Length Modulation parameters
Gate current parameters
Gate Induced Drain/Source Leakage (GIDL/GISL) parameters
For gate currents, GIDL/GISL currents are not linked with LOVO in L-UTSOI.
Impact Ionization Parameters
Charge model parameters
Self-heating parameters
Noise model parameters
Stress model for SWSTRESS = 1
In this paragraph are reported the modifications brought to mobility, saturation velocity and threshold voltage parameters when the strained-SOI dedicated stress model is selected (SWSTRESS = 2).
Effective SA/SB related parameters
Modification of mobility related parameters
Modification of threshold voltage related parameters
Stress model for SWSTRESS = 2
Effective SA/SB related parameters
Modification of mobility related parameters
Modification of threshold voltage related parameters
Asymmetric junctions
After the calculations described in paragraphs 3.1, 3.2 and 3.3, local parameters are clipped according to the min/max values given in the parameters tables.
Then, if the switch parameter SWJUNASYM is equal to 0, drain and source junctions are assumed symmetrical and all parameters related to the drain junction are overwritten by their source side counterparts.
If SWJUNASYM = 1, the drain side related parameters are kept unchanged. Notice that, if some of the drain side parameters are not specified in the model card, they take their default value and not their source side counterpart value.
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