HSPICE

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OutlineHSPICEHSPICE

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(1/4)

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(2/4)

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(3/4)Pre-simulation

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(4/4)Post-simulation

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HSPICE (1/3)

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HSPICE (2/3)Data Flow of Hspice

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HSPICE (3/3)

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Hspice (1/15)Structure of Netlist (.sp)

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Hspice (2/15)Simulation input and controlIn Hspice,Zero (0) is always GroundGround may be 0, GND, !GNDNode Names can cross all subcircuitby a .GLOBAL statementEX: .GLOBAL VDD VSS

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Hspice (3/15)Names of Instance and elementC **D **E,F,G,H **I *: *J *JFET*K *Mutual inductor*L **M *MOSFET*Q *BJT*O,T,U **V *: *X **

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Hspice (4/15)Scale factorsK *1e3*Meg *1e6*G *1e9*T *1e12*M *1e-3*U *1e-6*P *1e-12*F *1e-15*N *1e-19*

Examples:

(1) 1pF 1nH 10Meg Hz

(2) R Ohm : R1 n1 n2 1K C Farad : C2 n3 n4 1e-12 L Henry : L3 n5 n6 1e-9

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Hspice (5/15)MOSFET :MOSMMname drain gate source bulk mname length widthEx: MN1 out in vdd! vdd! pchL=0.35u w=1.8uEx: MN2 out in vss! vss! nchL=0.35u w=0.9u

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Hspice (6/15)Library input statement.INCLUDE statement *copy the content of file into netlist*EX: . INCLUDE $installdir/parts/ad

.LIB Definition and call statement *file reference and corner selection*EX:.lib '/export/home/vlsi07/MyLibrary/tsmc/mm0355v.l' tt

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Hspice (7/15)Subcircuit statement .SUBCKT subnamen1 .ENDSEx: .SUBCKT and a b *.PININFO a:Ib:Iy:O MM5 y net21 vss! vss! nchW=900n L=350nMM2 net9 b vss! vss! nchW=900n L=350nMM1 net21 a net9 vss! nchW=900n L=350nMM4 y net21 vdd! vdd! pchW=1.8u L=350nMM3 net21 a vdd! vdd! pchW=1.8u L=350nMM0 net21 b vdd! vdd! pchW=1.8u L=350n.ENDS

HspiceC.SUBCKT.SUBCKT.ends

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Hspice (8/15)Source types of Hspice// //

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Hspice (9/15)Independent source statements Ex:VD 1 2 DC 10VV2 3 4 DC -10VV3 5 6 DC 0VIQ 4 4 DC 1mA

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Hspice (10/15)Transient source statementsTypes of independent source functionPulse (pulse function) clock

Sinusoidal (sin function)

Exponential (exp function)

Piecewise linear (pwl function)

Single-frequency FM (sffm function)

Single-frequency AM (am function)

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Hspice (11/15)Pulse function : pluse: pulse(v1 v2 )

Ex: Vin in 0 pulse( 0v 5v 10ns 10ns 10ns 50ns 100ns )

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Hspice (12/15)Piecewise linear function : pwl: pwl( )Ex : V1 in1 0 pwl0n 0v 50n 5v 150n -5v 200n 0v, R=60n

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Hspice (13/15)Analysis type. tran()Ex : .tran1n 100n

Output parameter. optionEx: option post *Graph file. Probe *(awaves)Ex:

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Hspice (14/15)Example : inverter.sp.global vdd! vss!.lib 'mm0355v.l' tt ModelMN1 out in vdd! vdd! pchL=0.35u w=1.8uMN2 out in vss! vss! nchL=0.35u w=0.9uvddvdd! 0 3.3vvssvss! 0 0vvinin 0 pulse(0v 3.3v 10n 0.1n 0.1n10n 20n).probe.option post.tran1n 100n.end End fileDescription of circuit Sources Control signals