currents{ electron_mobility{ } }¶
\(\mathrm{\textcolor{Aquamarine}{optional}}\)
items: \(\mathrm{maximum\;1}\)
This group allows selecting mobility models for electrons neglecting definitions imposed by currents{ mobility_model }. Both low-field and high-field mobility models are possible to be selected in this group.
Maintained Keywords¶
The keywords below are available in at least one of currently published releases and are planned to be included also in the next release.
low_field_model¶
\(\mathrm{\textcolor{WildStrawberry}{required}}\)
type: \(\mathrm{choice}\)
choices: \(\mathrm{constant\;/\;masetti\;/\;arora\;/\;minimos}\)
An attribute overwriting selection of low-field model done by currents{ mobility_model } for electrons.
high_field_model{ }¶
\(\mathrm{\textcolor{Aquamarine}{optional}}\)
items: \(\mathrm{maximum\;1}\)
This group turns on high-field mobility models. One can select here and parametrize chosen high-field mobility models high-field mobility models: Extended Canali, Hänsch, Transferred-Electron, or Eastman-Tiwari-Shur for electrons. IF no model is selected within this group, but the group is specified, then the extended Canali model is used.
Warning
Convergence may be poor or non-existent for some choices of parameters. One should pay attention to selecting high-field model which is suitable for the semiconductor system of choice.
Important
Up to one of high_field_model{ haensch{ } }, high_field_model{ canali{ } }, high_field_model{ transferred{ } }, high_field_model{ eastman{ } }, and high_field_model{ eastman4{ } } can be defined.
high_field_model{ vsat }¶
\(\mathrm{\textcolor{WildStrawberry}{required}}\)
type: \(\mathrm{real\;number}\)
unit: \(\mathrm{cm/s}\)
values: \([1.0, \ldots)\)
This attribute allows setting saturation velocity \(v_ \text{sat}\) present in all high-field mobility models.
high_field_model{ haensch{ } }¶
\(\mathrm{\textcolor{Aquamarine}{optional}}\)
items: \(\mathrm{maximum\;1}\)
By specifying this group one selects Hänsh model to be used.
Note
The Hänsh model is a default high-field mobility model.
high_field_model{ canali{ } }¶
\(\mathrm{\textcolor{Aquamarine}{optional}}\)
items: \(\mathrm{maximum\;1}\)
By specifying this group one selects extended Canali model to be used.
high_field_model{ canali{ alpha } }¶
\(\mathrm{\textcolor{WildStrawberry}{required}}\)
type: \(\mathrm{real\;number}\)
unit: \(\mathrm{-}\)
values: \([0.0, \ldots)\)
An attribute corresponding to \(\alpha\) in the formulas.
high_field_model{ canali{ beta } }¶
\(\mathrm{\textcolor{WildStrawberry}{required}}\)
type: \(\mathrm{real\;number}\)
unit: \(\mathrm{-}\)
values: \([10^{-3}, \ldots)\)
An attribute corresponding to \(\beta\) in the formulas.
Note
One should set alpha = 0 if aiming at using the extended Canali model as in references.
When alpha = 1 and beta = 2 then Hänsch model is obtained as a special case of implemented formula.
high_field_model{ transferred{ } }¶
\(\mathrm{\textcolor{Aquamarine}{optional}}\)
items: \(\mathrm{maximum\;1}\)
By specifying this group one selects transferred electron model to be used.
high_field_model{ transferred{ alpha } }¶
\(\mathrm{\textcolor{Aquamarine}{optional}}\)
type: \(\mathrm{real\;number}\)
unit: \(\mathrm{-}\)
values: \([10^{-3}, \ldots)\)
default: \(1.0\)
An attribute corresponding to \(\alpha\) in the formulas.
high_field_model{ transferred{ beta } }¶
\(\mathrm{\textcolor{WildStrawberry}{required}}\)
type: \(\mathrm{real\;number}\)
unit: \(\mathrm{-}\)
values: \([1.001, \ldots)\)
An attribute corresponding to \(\beta\) in the formulas.
high_field_model{ transferred{ gamma } }¶
\(\mathrm{\textcolor{Aquamarine}{optional}}\)
type: \(\mathrm{real\;number}\)
unit: \(\mathrm{-}\)
values: \([0.0, \ldots)\)
default: \(0.0\)
An attribute corresponding to \(\gamma\) in the formulas.
high_field_model{ transferred{ E0 } }¶
\(\mathrm{\textcolor{WildStrawberry}{required}}\)
type: \(\mathrm{real\;number}\)
unit: \(\mathrm{V/cm}\)
values: \([1.0, \ldots)\)
An attribute corresponding to \(E_0\) in the formulas.
high_field_model{ eastman{ } }¶
\(\mathrm{\textcolor{Aquamarine}{optional}}\)
items: \(\mathrm{maximum\;1}\)
By specifying this group one selects Eastman-Tiwari-Shur with original parameterization to be used.
high_field_model{ eastman{ alpha } }¶
\(\mathrm{\textcolor{WildStrawberry}{required}}\)
type: \(\mathrm{real\;number}\)
unit: \(\mathrm{-}\)
values: \([0.0, \ldots)\)
An attribute corresponding to \(\alpha\) in the formulas.
high_field_model{ eastman{ beta } }¶
\(\mathrm{\textcolor{WildStrawberry}{required}}\)
type: \(\mathrm{real\;number}\)
unit: \(\mathrm{-}\)
values: \([1.0, \ldots)\)
An attribute corresponding to \(\beta\) in the formulas.
high_field_model{ eastman4{ } }¶
\(\mathrm{\textcolor{Aquamarine}{optional}}\)
items: \(\mathrm{maximum\;1}\)
By specifying this group one selects Eastman-Tiwari-Shur with four observable parameters \(E_\text{peak}\), \(E_\text{mid}\), \(v_\text{peak}\), and \(v_\text{mid}\) required instead of \(\alpha\) and \(\beta\).
high_field_model{ eastman4{ v_mid } }¶
\(\mathrm{\textcolor{WildStrawberry}{required}}\)
type: \(\mathrm{real\;number}\)
unit: \(\mathrm{cm/s}\)
values: \([1.0, \ldots)\)
An attribute corresponding to \(v_\text{mid}\) in the formulas.
high_field_model{ eastman4{ v_peak } }¶
\(\mathrm{\textcolor{WildStrawberry}{required}}\)
type: \(\mathrm{real\;number}\)
unit: \(\mathrm{cm/s}\)
values: \([1.0, \ldots)\)
An attribute corresponding to \(v_\text{peak}\) in the formulas.
high_field_model{ eastman4{ E_mid } }¶
\(\mathrm{\textcolor{WildStrawberry}{required}}\)
type: \(\mathrm{real\;number}\)
unit: \(\mathrm{V/cm}\)
values: \([1.0, \ldots)\)
An attribute corresponding to \(E_\text{mid}\) in the formulas.
high_field_model{ eastman4{ E_peak } }¶
\(\mathrm{\textcolor{WildStrawberry}{required}}\)
type: \(\mathrm{real\;number}\)
unit: \(\mathrm{V/cm}\)
values: \([1.0, \ldots)\)
An attribute corresponding to \(E_\text{peak}\) in the formulas.