MOSFET level 8 (BSIM3 version 3.3.0)

Instance line: Mname …
Model line: .model mname nmos | pmos, LEVEL=8 (or 49)
Terminals: Drain, Gate, Source, Bulk, Charge
Described in: MOSFETs
Source: src/lib/dev/bsim3v330/b3.c

Instance parameters (21)

Input and output (11)

name	type	description
`l`	real	Length
`w`	real	Width
`ad`	real	Drain area
`as`	real	Source area
`pd`	real	Drain perimeter
`ps`	real	Source perimeter
`nrd`	real	Number of squares in drain
`nrs`	real	Number of squares in source
`off`	flag	Device is initially off
`nqsmod`	integer	Non-quasi-static model selector
`acnqsmod`	integer	AC NQS model selector

Input only (1)

name	type	description	notes
`ic`	real vector	Vector of DS,GS,BS initial voltages

Output only (9)

name	type	description
`gmbs`	real	Gmb
`gm`	real	Gm
`gds`	real	Gds
`vdsat`	real	Vdsat
`vth`	real	Vth
`id`	real	Ids
`vbs`	real	Vbs
`vgs`	real	Vgs
`vds`	real	Vds

Model parameters (401)

Input and output (399)

name	type	description
`capmod`	integer	Capacitance model selector
`mobmod`	integer	Mobility model selector
`noimod`	integer	Noise model selector
`acnqsmod`	integer	AC NQS model selector
`paramchk`	integer	Model parameter checking selector
`binunit`	integer	Bin unit selector
`version`	string	parameter for model version
`tox`	real	Gate oxide thickness in meters
`toxm`	real	Gate oxide thickness used in extraction
`cdsc`	real	Drain/Source and channel coupling capacitance
`cdscb`	real	Body-bias dependence of cdsc
`cdscd`	real	Drain-bias dependence of cdsc
`cit`	real	Interface state capacitance
`nfactor`	real	Subthreshold swing Coefficient
`xj`	real	Junction depth in meters
`vsat`	real	Saturation velocity at tnom
`at`	real	Temperature coefficient of vsat
`a0`	real	Non-uniform depletion width effect coefficient.
`ags`	real	Gate bias coefficient of Abulk.
`a1`	real	Non-saturation effect coefficient
`a2`	real	Non-saturation effect coefficient
`keta`	real	Body-bias coefficient of non-uniform depletion width effect.
`nsub`	real	Substrate doping concentration
`nch`	real	Channel doping concentration
`ngate`	real	Poly-gate doping concentration
`gamma1`	real	Vth body coefficient
`gamma2`	real	Vth body coefficient
`vbx`	real	Vth transition body Voltage
`vbm`	real	Maximum body voltage
`xt`	real	Doping depth
`k1`	real	Bulk effect coefficient 1
`kt1`	real	Temperature coefficient of Vth
`kt1l`	real	Temperature coefficient of Vth
`kt2`	real	Body-coefficient of kt1
`k2`	real	Bulk effect coefficient 2
`k3`	real	Narrow width effect coefficient
`k3b`	real	Body effect coefficient of k3
`w0`	real	Narrow width effect parameter
`nlx`	real	Lateral non-uniform doping effect
`dvt0`	real	Short channel effect coeff. 0
`dvt1`	real	Short channel effect coeff. 1
`dvt2`	real	Short channel effect coeff. 2
`dvt0w`	real	Narrow Width coeff. 0
`dvt1w`	real	Narrow Width effect coeff. 1
`dvt2w`	real	Narrow Width effect coeff. 2
`drout`	real	DIBL coefficient of output resistance
`dsub`	real	DIBL coefficient in the subthreshold region
`vth0` (also `vtho`)	real	Threshold voltage
`ua`	real	Linear gate dependence of mobility
`ua1`	real	Temperature coefficient of ua
`ub`	real	Quadratic gate dependence of mobility
`ub1`	real	Temperature coefficient of ub
`uc`	real	Body-bias dependence of mobility
`uc1`	real	Temperature coefficient of uc
`u0`	real	Low-field mobility at Tnom
`ute`	real	Temperature coefficient of mobility
`voff`	real	Threshold voltage offset
`tnom`	real	Parameter measurement temperature
`cgso`	real	Gate-source overlap capacitance per width
`cgdo`	real	Gate-drain overlap capacitance per width
`cgbo`	real	Gate-bulk overlap capacitance per length
`xpart`	real	Channel charge partitioning
`elm`	real	Non-quasi-static Elmore Constant Parameter
`delta`	real	Effective Vds parameter
`rsh`	real	Source-drain sheet resistance
`rdsw`	real	Source-drain resistance per width
`prwg`	real	Gate-bias effect on parasitic resistance
`prwb`	real	Body-effect on parasitic resistance
`prt`	real	Temperature coefficient of parasitic resistance
`eta0`	real	Subthreshold region DIBL coefficient
`etab`	real	Subthreshold region DIBL coefficient
`pclm`	real	Channel length modulation Coefficient
`pdiblc1`	real	Drain-induced barrier lowering coefficient
`pdiblc2`	real	Drain-induced barrier lowering coefficient
`pdiblcb`	real	Body-effect on drain-induced barrier lowering
`pscbe1`	real	Substrate current body-effect coefficient
`pscbe2`	real	Substrate current body-effect coefficient
`pvag`	real	Gate dependence of output resistance parameter
`js`	real	Source/drain junction reverse saturation current density
`jsw`	real	Sidewall junction reverse saturation current density
`pb`	real	Source/drain junction built-in potential
`nj`	real	Source/drain junction emission coefficient
`xti`	real	Junction current temperature exponent
`mj`	real	Source/drain bottom junction capacitance grading coefficient
`pbsw`	real	Source/drain sidewall junction capacitance built in potential
`mjsw`	real	Source/drain sidewall junction capacitance grading coefficient
`pbswg`	real	Source/drain (gate side) sidewall junction capacitance built in potential
`mjswg`	real	Source/drain (gate side) sidewall junction capacitance grading coefficient
`cj`	real	Source/drain bottom junction capacitance per unit area
`vfbcv`	real	Flat Band Voltage parameter for capmod=0 only
`vfb`	real	Flat Band Voltage
`cjsw`	real	Source/drain sidewall junction capacitance per unit periphery
`cjswg`	real	Source/drain (gate side) sidewall junction capacitance per unit width
`tpb`	real	Temperature coefficient of pb
`tcj`	real	Temperature coefficient of cj
`tpbsw`	real	Temperature coefficient of pbsw
`tcjsw`	real	Temperature coefficient of cjsw
`tpbswg`	real	Temperature coefficient of pbswg
`tcjswg`	real	Temperature coefficient of cjswg
`acde`	real	Exponential coefficient for finite charge thickness
`moin`	real	Coefficient for gate-bias dependent surface potential
`noff`	real	C-V turn-on/off parameter
`voffcv`	real	C-V lateral-shift parameter
`lintnoi`	real	lint offset for noise calculation
`lint`	real	Length reduction parameter
`ll`	real	Length reduction parameter
`llc`	real	Length reduction parameter for CV
`lln`	real	Length reduction parameter
`lw`	real	Length reduction parameter
`lwc`	real	Length reduction parameter for CV
`lwn`	real	Length reduction parameter
`lwl`	real	Length reduction parameter
`lwlc`	real	Length reduction parameter for CV
`lmin`	real	Minimum length for the model
`lmax`	real	Maximum length for the model
`wr`	real	Width dependence of rds
`wint`	real	Width reduction parameter
`dwg`	real	Width reduction parameter
`dwb`	real	Width reduction parameter
`wl`	real	Width reduction parameter
`wlc`	real	Width reduction parameter for CV
`wln`	real	Width reduction parameter
`ww`	real	Width reduction parameter
`wwc`	real	Width reduction parameter for CV
`wwn`	real	Width reduction parameter
`wwl`	real	Width reduction parameter
`wwlc`	real	Width reduction parameter for CV
`wmin`	real	Minimum width for the model
`wmax`	real	Maximum width for the model
`b0`	real	Abulk narrow width parameter
`b1`	real	Abulk narrow width parameter
`cgsl`	real	New C-V model parameter
`cgdl`	real	New C-V model parameter
`ckappa`	real	New C-V model parameter
`cf`	real	Fringe capacitance parameter
`clc`	real	Vdsat parameter for C-V model
`cle`	real	Vdsat parameter for C-V model
`dwc`	real	Delta W for C-V model
`dlc`	real	Delta L for C-V model
`alpha0`	real	substrate current model parameter
`alpha1`	real	substrate current model parameter
`beta0`	real	substrate current model parameter
`ijth`	real	Diode limiting current
`lcdsc`	real	Length dependence of cdsc
`lcdscb`	real	Length dependence of cdscb
`lcdscd`	real	Length dependence of cdscd
`lcit`	real	Length dependence of cit
`lnfactor`	real	Length dependence of nfactor
`lxj`	real	Length dependence of xj
`lvsat`	real	Length dependence of vsat
`lat`	real	Length dependence of at
`la0`	real	Length dependence of a0
`lags`	real	Length dependence of ags
`la1`	real	Length dependence of a1
`la2`	real	Length dependence of a2
`lketa`	real	Length dependence of keta
`lnsub`	real	Length dependence of nsub
`lnch`	real	Length dependence of nch
`lngate`	real	Length dependence of ngate
`lgamma1`	real	Length dependence of gamma1
`lgamma2`	real	Length dependence of gamma2
`lvbx`	real	Length dependence of vbx
`lvbm`	real	Length dependence of vbm
`lxt`	real	Length dependence of xt
`lk1`	real	Length dependence of k1
`lkt1`	real	Length dependence of kt1
`lkt1l`	real	Length dependence of kt1l
`lkt2`	real	Length dependence of kt2
`lk2`	real	Length dependence of k2
`lk3`	real	Length dependence of k3
`lk3b`	real	Length dependence of k3b
`lw0`	real	Length dependence of w0
`lnlx`	real	Length dependence of nlx
`ldvt0`	real	Length dependence of dvt0
`ldvt1`	real	Length dependence of dvt1
`ldvt2`	real	Length dependence of dvt2
`ldvt0w`	real	Length dependence of dvt0w
`ldvt1w`	real	Length dependence of dvt1w
`ldvt2w`	real	Length dependence of dvt2w
`ldrout`	real	Length dependence of drout
`ldsub`	real	Length dependence of dsub
`lvth0` (also `lvtho`)	real	Length dependence of vto
`lua`	real	Length dependence of ua
`lua1`	real	Length dependence of ua1
`lub`	real	Length dependence of ub
`lub1`	real	Length dependence of ub1
`luc`	real	Length dependence of uc
`luc1`	real	Length dependence of uc1
`lu0`	real	Length dependence of u0
`lute`	real	Length dependence of ute
`lvoff`	real	Length dependence of voff
`lelm`	real	Length dependence of elm
`ldelta`	real	Length dependence of delta
`lrdsw`	real	Length dependence of rdsw
`lprwg`	real	Length dependence of prwg
`lprwb`	real	Length dependence of prwb
`lprt`	real	Length dependence of prt
`leta0`	real	Length dependence of eta0
`letab`	real	Length dependence of etab
`lpclm`	real	Length dependence of pclm
`lpdiblc1`	real	Length dependence of pdiblc1
`lpdiblc2`	real	Length dependence of pdiblc2
`lpdiblcb`	real	Length dependence of pdiblcb
`lpscbe1`	real	Length dependence of pscbe1
`lpscbe2`	real	Length dependence of pscbe2
`lpvag`	real	Length dependence of pvag
`lwr`	real	Length dependence of wr
`ldwg`	real	Length dependence of dwg
`ldwb`	real	Length dependence of dwb
`lb0`	real	Length dependence of b0
`lb1`	real	Length dependence of b1
`lcgsl`	real	Length dependence of cgsl
`lcgdl`	real	Length dependence of cgdl
`lckappa`	real	Length dependence of ckappa
`lcf`	real	Length dependence of cf
`lclc`	real	Length dependence of clc
`lcle`	real	Length dependence of cle
`lalpha0`	real	Length dependence of alpha0
`lalpha1`	real	Length dependence of alpha1
`lbeta0`	real	Length dependence of beta0
`lvfbcv`	real	Length dependence of vfbcv
`lvfb`	real	Length dependence of vfb
`lacde`	real	Length dependence of acde
`lmoin`	real	Length dependence of moin
`lnoff`	real	Length dependence of noff
`lvoffcv`	real	Length dependence of voffcv
`wcdsc`	real	Width dependence of cdsc
`wcdscb`	real	Width dependence of cdscb
`wcdscd`	real	Width dependence of cdscd
`wcit`	real	Width dependence of cit
`wnfactor`	real	Width dependence of nfactor
`wxj`	real	Width dependence of xj
`wvsat`	real	Width dependence of vsat
`wat`	real	Width dependence of at
`wa0`	real	Width dependence of a0
`wags`	real	Width dependence of ags
`wa1`	real	Width dependence of a1
`wa2`	real	Width dependence of a2
`wketa`	real	Width dependence of keta
`wnsub`	real	Width dependence of nsub
`wnch`	real	Width dependence of nch
`wngate`	real	Width dependence of ngate
`wgamma1`	real	Width dependence of gamma1
`wgamma2`	real	Width dependence of gamma2
`wvbx`	real	Width dependence of vbx
`wvbm`	real	Width dependence of vbm
`wxt`	real	Width dependence of xt
`wk1`	real	Width dependence of k1
`wkt1`	real	Width dependence of kt1
`wkt1l`	real	Width dependence of kt1l
`wkt2`	real	Width dependence of kt2
`wk2`	real	Width dependence of k2
`wk3`	real	Width dependence of k3
`wk3b`	real	Width dependence of k3b
`ww0`	real	Width dependence of w0
`wnlx`	real	Width dependence of nlx
`wdvt0`	real	Width dependence of dvt0
`wdvt1`	real	Width dependence of dvt1
`wdvt2`	real	Width dependence of dvt2
`wdvt0w`	real	Width dependence of dvt0w
`wdvt1w`	real	Width dependence of dvt1w
`wdvt2w`	real	Width dependence of dvt2w
`wdrout`	real	Width dependence of drout
`wdsub`	real	Width dependence of dsub
`wvth0` (also `wvtho`)	real	Width dependence of vto
`wua`	real	Width dependence of ua
`wua1`	real	Width dependence of ua1
`wub`	real	Width dependence of ub
`wub1`	real	Width dependence of ub1
`wuc`	real	Width dependence of uc
`wuc1`	real	Width dependence of uc1
`wu0`	real	Width dependence of u0
`wute`	real	Width dependence of ute
`wvoff`	real	Width dependence of voff
`welm`	real	Width dependence of elm
`wdelta`	real	Width dependence of delta
`wrdsw`	real	Width dependence of rdsw
`wprwg`	real	Width dependence of prwg
`wprwb`	real	Width dependence of prwb
`wprt`	real	Width dependence of prt
`weta0`	real	Width dependence of eta0
`wetab`	real	Width dependence of etab
`wpclm`	real	Width dependence of pclm
`wpdiblc1`	real	Width dependence of pdiblc1
`wpdiblc2`	real	Width dependence of pdiblc2
`wpdiblcb`	real	Width dependence of pdiblcb
`wpscbe1`	real	Width dependence of pscbe1
`wpscbe2`	real	Width dependence of pscbe2
`wpvag`	real	Width dependence of pvag
`wwr`	real	Width dependence of wr
`wdwg`	real	Width dependence of dwg
`wdwb`	real	Width dependence of dwb
`wb0`	real	Width dependence of b0
`wb1`	real	Width dependence of b1
`wcgsl`	real	Width dependence of cgsl
`wcgdl`	real	Width dependence of cgdl
`wckappa`	real	Width dependence of ckappa
`wcf`	real	Width dependence of cf
`wclc`	real	Width dependence of clc
`wcle`	real	Width dependence of cle
`walpha0`	real	Width dependence of alpha0
`walpha1`	real	Width dependence of alpha1
`wbeta0`	real	Width dependence of beta0
`wvfbcv`	real	Width dependence of vfbcv
`wvfb`	real	Width dependence of vfb
`wacde`	real	Width dependence of acde
`wmoin`	real	Width dependence of moin
`wnoff`	real	Width dependence of noff
`wvoffcv`	real	Width dependence of voffcv
`pcdsc`	real	Cross-term dependence of cdsc
`pcdscb`	real	Cross-term dependence of cdscb
`pcdscd`	real	Cross-term dependence of cdscd
`pcit`	real	Cross-term dependence of cit
`pnfactor`	real	Cross-term dependence of nfactor
`pxj`	real	Cross-term dependence of xj
`pvsat`	real	Cross-term dependence of vsat
`pat`	real	Cross-term dependence of at
`pa0`	real	Cross-term dependence of a0
`pags`	real	Cross-term dependence of ags
`pa1`	real	Cross-term dependence of a1
`pa2`	real	Cross-term dependence of a2
`pketa`	real	Cross-term dependence of keta
`pnsub`	real	Cross-term dependence of nsub
`pnch`	real	Cross-term dependence of nch
`pngate`	real	Cross-term dependence of ngate
`pgamma1`	real	Cross-term dependence of gamma1
`pgamma2`	real	Cross-term dependence of gamma2
`pvbx`	real	Cross-term dependence of vbx
`pvbm`	real	Cross-term dependence of vbm
`pxt`	real	Cross-term dependence of xt
`pk1`	real	Cross-term dependence of k1
`pkt1`	real	Cross-term dependence of kt1
`pkt1l`	real	Cross-term dependence of kt1l
`pkt2`	real	Cross-term dependence of kt2
`pk2`	real	Cross-term dependence of k2
`pk3`	real	Cross-term dependence of k3
`pk3b`	real	Cross-term dependence of k3b
`pw0`	real	Cross-term dependence of w0
`pnlx`	real	Cross-term dependence of nlx
`pdvt0`	real	Cross-term dependence of dvt0
`pdvt1`	real	Cross-term dependence of dvt1
`pdvt2`	real	Cross-term dependence of dvt2
`pdvt0w`	real	Cross-term dependence of dvt0w
`pdvt1w`	real	Cross-term dependence of dvt1w
`pdvt2w`	real	Cross-term dependence of dvt2w
`pdrout`	real	Cross-term dependence of drout
`pdsub`	real	Cross-term dependence of dsub
`pvth0` (also `pvtho`)	real	Cross-term dependence of vto
`pua`	real	Cross-term dependence of ua
`pua1`	real	Cross-term dependence of ua1
`pub`	real	Cross-term dependence of ub
`pub1`	real	Cross-term dependence of ub1
`puc`	real	Cross-term dependence of uc
`puc1`	real	Cross-term dependence of uc1
`pu0`	real	Cross-term dependence of u0
`pute`	real	Cross-term dependence of ute
`pvoff`	real	Cross-term dependence of voff
`pelm`	real	Cross-term dependence of elm
`pdelta`	real	Cross-term dependence of delta
`prdsw`	real	Cross-term dependence of rdsw
`pprwg`	real	Cross-term dependence of prwg
`pprwb`	real	Cross-term dependence of prwb
`pprt`	real	Cross-term dependence of prt
`peta0`	real	Cross-term dependence of eta0
`petab`	real	Cross-term dependence of etab
`ppclm`	real	Cross-term dependence of pclm
`ppdiblc1`	real	Cross-term dependence of pdiblc1
`ppdiblc2`	real	Cross-term dependence of pdiblc2
`ppdiblcb`	real	Cross-term dependence of pdiblcb
`ppscbe1`	real	Cross-term dependence of pscbe1
`ppscbe2`	real	Cross-term dependence of pscbe2
`ppvag`	real	Cross-term dependence of pvag
`pwr`	real	Cross-term dependence of wr
`pdwg`	real	Cross-term dependence of dwg
`pdwb`	real	Cross-term dependence of dwb
`pb0`	real	Cross-term dependence of b0
`pb1`	real	Cross-term dependence of b1
`pcgsl`	real	Cross-term dependence of cgsl
`pcgdl`	real	Cross-term dependence of cgdl
`pckappa`	real	Cross-term dependence of ckappa
`pcf`	real	Cross-term dependence of cf
`pclc`	real	Cross-term dependence of clc
`pcle`	real	Cross-term dependence of cle
`palpha0`	real	Cross-term dependence of alpha0
`palpha1`	real	Cross-term dependence of alpha1
`pbeta0`	real	Cross-term dependence of beta0
`pvfbcv`	real	Cross-term dependence of vfbcv
`pvfb`	real	Cross-term dependence of vfb
`pacde`	real	Cross-term dependence of acde
`pmoin`	real	Cross-term dependence of moin
`pnoff`	real	Cross-term dependence of noff
`pvoffcv`	real	Cross-term dependence of voffcv
`noia`	real	Flicker noise parameter
`noib`	real	Flicker noise parameter
`noic`	real	Flicker noise parameter
`em`	real	Flicker noise parameter
`ef`	real	Flicker noise frequency exponent
`af`	real	Flicker noise exponent
`kf`	real	Flicker noise coefficient

Input only (2)

name	type	description	notes
`nmos`	flag	Flag to indicate NMOS
`pmos`	flag	Flag to indicate PMOS

Parameters are set on the instance or .model line as keyword=value, and read back with @name[keyword] or the show and showmod commands. See the device reference.