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SPICE Geometric Junction Diode Model: SDIODEG

Symbol

Parameters

Name Description Unit Type Default
ID Diode ID Text SDG1
*IS Reverse saturation current Current 1e-11 mA
*JSW Periphery reverse saturation current Current 0 mA
*MULT Multiplier   1
*AFAC Junction area   1
*PJFAC Junction periphery   1
*SCALE Scale factor   1
*SHRINK Shrink factor   1
*L Diode length Length 0 um
*W Diode width Length 0 um
*XW Masking or etching correction factor Length 0 um
*LP Diode length Length 0 um
*WP Diode width Length 0 um
*XP Poly masking or etching correction factor Length 0 um
*LM Diode length Length 0 um
*WM Diode width Length 0 um
*XM Metal masking or etching correction factor Length 0 um
*XOI Poly to bulk oxide thickness Length 10,000um
*XOM Metal to bulk oxide thickness Length 10,000um
*RS Series resistance Resistance 0.001 ohm
*N Ideality factor   1
*TT Storage time Time 0 ns
*CJ0 Zero-voltage bottom junction capacitance Capacitance 0 pF
*CJP Zero-voltage periphery junction capacitance Capacitance 0 pF
*VJ Bottom built-in voltage Voltage 0.8 V
*PHP Periphery built-in voltage Voltage 0.8 V
*M Bottom junction grading coefficient   0.5
*MJSW Periphery junction grading coefficient   0.33
*FC Bottom depletion capacitance linearization parameter   0.5
*FCS Periphery depletion capacitance linearization parameter   0.5
*BV Breakdown voltage Voltage 1000000 V
*IBV Current at breakdown voltage Current 1mA
*IKF Forward knee current Current 0 mA
*IKR Reverse knee current Current 0 mA
*EG Energy gap @ TNOM; default is Si   1.16
*XTI Temp scaling coefficient; default is Si PN   3
*TEXT Temperature at which diode params were determined Temperature 25 DegC
*T Temperature Temperature 25 DegC
*KF Flicker noise coefficient   0
*AF Flicker noise exponent   1
*FFE Flicker noise frequency exponent   1
*KB Burst noise coefficient   0
*AB Burst noise exponent   1
*FB Burst noise cutoff frequency   1
*NFLAF Noise model   Noise On
*DCAP Capacitance model selector   1
*TLEV I/V temperature model   0
*TLEVC Capacitance temperature model   0
*CTA Temperature coefficient for CJ0   0
*CTP Temperature coefficient for CJP   0
*GAP1 First bandgap correction factor   0.000702
*GAP2 Second bandgap correction factor   1108
*TCV Breakdown voltage temperature coefficient   0
*TM1 First-order temperature coefficient for MJ   0
*TM2 Second-order temperature coefficient for MJ   0
*TPB Temperature coefficient for VJ   0
*TPHP Temperature coefficient for PHP   0
*TRS Resistance temperature coefficient   0
*TTT1 First-order temperature coefficient for TT   0
*TTT2 Second-order temperature coefficient for TT   0
*COMPAT Compatibility selector: HPSICE   AWR
*IMAX Maximum device current Current 1e6 mA
*NS Ideality factor for periphery diode   1

* indicates a secondary parameter

Implementation Details

SDIODEG was developed as and extension to SDIODE to support the parameters associated with pn junctions described in terms of their geometry. Accordingly, this model is mapped into HSPICE as a D-device with parameter LEVEL set to 3.

All SDIODE parameters are available in SDIODEG.

Layout

This element does not have an assigned layout cell. You can assign artwork cells to any element. See “Assigning Artwork Cells to Layout of Schematic Elements” for details.

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