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Introduction to HSPICE

Introduction to HSPICE. Speaker : Shang-Jyh Shieh Email : d8542015@ccunix.ccu.edu.tw TEL : Lab 7354. P RELIMINARY. Appending the following line in your “.cshrc” file source /usr/meta/cur/bin/cshrc.meta HSPICE model path /vlsi-data/eda_models/hspice/tsmc035/logsp35.l (TSMC 0.35um)

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Introduction to HSPICE

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  1. Introduction to HSPICE Speaker : Shang-Jyh Shieh Email : d8542015@ccunix.ccu.edu.tw TEL : Lab 7354

  2. PRELIMINARY • Appending the following line in your “.cshrc” file source /usr/meta/cur/bin/cshrc.meta • HSPICE model path /vlsi-data/eda_models/hspice/tsmc035/logsp35.l (TSMC 0.35um) /vlsi-data/eda_models/hspice/tsmc06/logic06.l (TSMC 0.6um) /vlsi-data/eda_models/hspice/tsmc08/model0.8t (TSMC 0.8um) • HSPICE online document /usr/meta/cur/docs/hspiceManual.pdf HSPICE(200010)

  3. EXAMPLE OF INPUT (*.sp) • Include files .INC ‘and2.subckt’ • Library Call .LIB ‘/vlsi-data/eda_models/hspice/tsmc035/logsp35.l’ TT • Netlist • mp1 1 2 vdd! vdd! pch w=2.8u l=0.6u • mn1 1 2 gnd! gnd! nch w=1.4u l=0.6u • C1 3 gnd! 250fF IC=3.3V • R2 2 3 100meg • Output Control • .meas tran Tr TRIG v(in) val=‘3.3/2' TD=’10n' RISE=1 • + TARG v(out) val=‘3.3/2' RISE=1 • .meas tran Tf TRIG v(in) val=‘3.3/2' TD=’10n' FALL=1 • + TARG v(out) val=‘3.3/2' FALL=1 • .meas Tdelay param='(Tr+Tf)/2' • free format / case insensitive HSPICE(200010)

  4. ELEMENTS (I) • Independent Voltage / Current Source (DC) n1 n3 Idc n3 n4 20m 3.3V 20mA Vdc n1 n2 3.3 n4 n2 tpw v2 v1 tr tf tper td Pulse : Vpul n1 n2 pulse( v1 v2 td tr tf tpw tper ) HSPICE(200010)

  5. L W Perimeter / Area ELEMENTS - MOSFET (I) • MOSFET Mxxx D G S B MODEL W=x L=x[AS=x AD=x PS=x PD=x] HSPICE(200010)

  6. ELEMENTS - MOSFET (II) • Basic Knowledge LDD: Lightly Doped Drain HDIF LDIF HSPICE(200010)

  7. ELEMENTS - MOSFET (III) • Basic Knowledge ACM : Area Calculation Method ACM=3 GEO=2 GEO=3 GEO=1 LDIF HDIF HDIF W D S D S D S AD=2*HDIF*W AD=HDIF*W AD=HDIF*W AS=2*HDIF*W AS=HDIF*W AS=HDIF*W PD=4*HDIF+W PD=2*HDIF PD=2*HDIF PS=4*HDIF+W PS=2*HDIF PS=2*HDIF • Default GEO=0 HSPICE(200010)

  8. ELEMENTS - MOSFET (IV) vdd vdd ia zn ib n1 gnd • Example: • mp1 zn ia vdd vdd pch w=1.4u l=0.6u GEO=1 • mp2 zn ib vdd vdd pch w=1.4u l=0.6u GEO=1 • mn1 zn ib n1 gnd nch w=1.4u l=0.6u GEO=2 • mn2 n1 ia gnd gnd nch w=1.4u l=0.6u GEO=1 HSPICE(200010)

  9. SUBCIRCUIT • subcircuit definition • example .subckt inv 2 3 1 4 wp_inv=1.4u mp1 3 2 1 1 pch w=wp_inv l=0.6u mn1 3 2 4 4 nch w=1.4u l=0.6u .ends .subckt XOR3 5 8 6 1 2 3 99 * A B C s sb vds vss mp1 1 2 3 3 pch w=1.4u l=0.6u mn1 1 2 99 99 nch w=1.4u l=0.6u mp2 2 1 3 3 pch w=1.4u l=0.6u mn2 2 1 99 99 nch w=1.4u l=0.6u mn3 7 10 1 99 nch w=1.4u l=0.6u mn4 5 4 7 99 nch w=1.4u l=0.6u mn5 11 6 1 99 nch w=1.4u l=0.6u mn6 9 8 7 99 nch w=1.4u l=0.6u mn7 7 6 2 99 nch w=1.4u l=0.6u mn8 5 8 11 99 nch w=1.4u l=0.6u mn9 11 10 2 99 nch w=1.4u l=0.6u mna 9 4 11 99 nch w=1.4u l=0.6u xinvA 5 9 3 99 inv wp_inv=2.8u xinvB 8 4 3 99 inv wp_inv=2.8u xinvC 6 10 3 99 inv wp_inv=2.8u .ends • subcircuit call xinvX 5 9 3 99 inv wp_inv=2.8u xinvY 8 4 3 99 inv wp_inv=2.8u xinvZ 6 10 3 99 inv wp_inv=2.8u HSPICE(200010)

  10. MEASURE (I) • Trigger/Target • .MEAS TRAN T1 TRIG v(in) VAL=’2.5V’ TD=’20n' RISE=1 • + TARG v(out) VAL=’2.5V’ FALL=1 • .MEAS TRAN T2 TRIG v(in) VAL=’2.5V’ TD=’20n' FALL=1 • + TARG v(out) VAL=’2.5V’ RISE=1 • .MEAS Tpd PARAM='(T1+T2)/2’ • AVG/RMS/MIN/MAX/PP • .MEAS TRAN vomax MAX v(out) FROM=’20n’ TO=‘100n’ • .MEAS TRAN vomin MIN v(out) FROM=’20n’ TO=‘100n’ • .MEAS TRAN vorms RMS v(out) FROM=’20n’ TO=‘100n’ HSPICE(200010)

  11. MEASURE (II) • FIND/WHEN • .MEAS TRAN time1 WHEN v(out)=‘2.5V’ FALL=LAST • .MEAS TRAN time2 WHEN v(out)=‘2.5V’ CROSS=‘4’ • .MEAS TRAN v1 FIND v(out) AT=‘50n’ HSPICE(200010)

  12. Power Measurement • Basic Power Meter • Practical Power Meter *REFERENCE Ry=1e15 Cy=1e-12 HSPICE(200010)

  13. ANALYSIS TYPE • Transient analysis .TRAN 0.1n 100n UIC • Operating Point .OP • DC Sweep .DC vin 1V 5V 0.5V • AC small signal analysis .AC LIN 1K 100MEG • .AC DEC 1K 100MEG HSPICE(200010)

  14. OTHER COMMAND CARD • OPTION for Accuracy • .OPTIONs absmos=1p absv=1p relmos=1u relv=1p relvar=1m • Temperature • .TEMP 100 ( default 25 degree C ) • Graphic Output for “AWAVES” • Plot all input, output and internal nodes .OPTIONs POST • Plot specified nodes .OPTIONs POST PROBE .PROBE v(1) V(2) V(3) V(4) V(5) HSPICE(200010)

  15. INVOKING HSPICE • Executing HSPICE • % hspice myfile.spà • Output files • *.tr? graphic output files for awaves • *.mt? measure output files (TXT file) HSPICE(200010)

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