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Ηλεκτρονικοί Υπολογιστές και Τεχνικά Θέματα / Spice / Re: cannot understand hspice warning
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on: September 24, 2007, 16:38:48 pm
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--> Oi parentheseis sto modelo einai apla diaforetikos tropos symbolismou - 'h paizei na tis zitaei kapoio allo eidos spice - sto hspice tis cadence paizei kanonika kai meta '+' mprosta apo kathe grammh pou anaferetai stis parametrous enos montelou
--> To megethos tou tox an itan poly mikro tha mou evgaze allh proeidopoihsh tou typou: "tox value too small"
Ayto pou ekana kai mou fainetai pws douleyei einai na ftiaksw mia global mia parametro tox1:
.param tox1 2.5e-009
sti dilwsi twn parametrwn montelwn MOS (model card) meta grafw: Tox=tox1
kai prin apo kathe orismo mias pylhs mesa sth netlist allazw thn timh ths global parameter tox1 kai vazw ayti poy thelw kai ap'oti fainetai allazei aytomata kai h timh tou Tox twn montelwn Apla ayto mou fainetai ligo mpakalistiko...
telospantwn na mi sas paideyw, eyxaristw poly gia to endiaferon!
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8
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Ηλεκτρονικοί Υπολογιστές και Τεχνικά Θέματα / Spice / Re: cannot understand hspice warning
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on: September 23, 2007, 20:35:20 pm
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An allaksw ta MOS models pou xrhsimopoiw gia paradeigma valw to ejhs:
********************************* c17 netlist ****************************************
.title c17.sp
.MODEL NMODEL NMOS
+ LEVEL =3 THETA =0.3873 VTO =0.76 UO =515
+ GAMMA =0.5 PHI =0.78 TOX =1.5e-08 NSUB =8.623e+16
+ XJ =2.5e-07 LD =1e-07 DELTA =0 VMAX =219900
+ NFS =1e+10 JS =5e-07 CJ =0.000318 CJSW =3.85e-10
+ MJ =0.5 MJSW =0.26 PB =0.75 CGSO =2e-10
+ CGDO =2e-10 CGBO =0 KAPPA =0.4624 ETA =0.008652
.MODEL PMODEL PMOS
... {pmos model card ommited}
.subckt nand2 3 1 2 9999 lp=0.06u wp=0.490905u ln=0.06u wn=0.15u toxide=0.0025u m1 3 1 9999 9999 PMODEL l=lp w=wp as=0.0294543p ad=0.0294543p ps=1.10181u pd=1.10181u Tox=toxide m3 3 2 9999 9999 PMODEL l=lp w=wp as=0.0294543p ad=0.0294543p ps=1.10181u pd=1.10181u Tox=toxide m2 3 1 4 0 NMODEL l=ln w=wn as=0.09p ad=0.09p ps=0.42u pd=0.42u Tox=toxide m4 4 2 0 0 NMODEL l=ln w=wn as=0.09p ad=0.09p ps=0.42u pd=0.42u Tox=toxide .ends nand2
x10 10 1 3 9999 nand2 x11 11 3 6 9999 nand2 x16 16 2 11 9999 nand2 x19 19 11 7 9999 nand2 x22 22 10 16 9999 nand2 x23 23 16 19 9999 nand2
.end
******************************************** end of netlist *********************************
Mou emfanizetai pali to mhnyma
** Warning**: The parameter tox will be ignored
opote den paizei na ftaine ta MOS models
Tpt alles idees??
Eyxaristw pantws gia tin prospatheia
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Ηλεκτρονικοί Υπολογιστές και Τεχνικά Θέματα / Spice / cannot understand hspice warning
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on: September 23, 2007, 16:50:31 pm
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Hello
----> I simulate the following netlist on HSPICE 2002.2.2 and I receive the following warning in the .lis file created:
** Warning**: The parameter tox will be ignored
--->The netlist is the following:
*************************** netlist start *************************
*Copyright (C) 2006-2007 UTH/ELAB. * All rights reserved.
.title c17.sp .include '090.nmos' .include '090.pmos'
v1 1 0 pulse(0 5 15n) v2 2 0 pulse(0 5 15n) v3 3 0 pulse(0 5 15n) v6 6 0 pulse(0 5 15n) v7 7 0 pulse(0 5 15n)
.print tran v(22) .print tran v(23) vdd 9999 0 dc 5v
.subckt nand2 3 1 2 9999 l1=0.06u wp=0.490905u wn=0.15u tox1=0.0025u m1 3 1 9999 9999 gpdk090_pmos1v l=l1 w=wp as=0.0294543p ad=0.0294543p ps=1.10181u pd=1.10181u Tox=tox1 m3 3 2 9999 9999 gpdk090_pmos1v l=l1 w=wp as=0.0294543p ad=0.0294543p ps=1.10181u pd=1.10181u Tox=tox1 m2 3 1 4 0 gpdk090_nmos1v l=l1 w=wn as=0.09p ad=0.09p ps=0.42u pd=0.42u Tox=tox1 m4 4 2 0 0 gpdk090_nmos1v l=l1 w=wn as=0.09p ad=0.09p ps=0.42u pd=0.42u Tox=tox1 .ends nand2
x10 10 1 3 9999 nand2 x11 11 3 6 9999 nand2 l1=6.0531939e-008 tox1 = 2.5136211e-009 x16 16 2 11 9999 nand2 l1=6.1747769e-008 tox1 = 2.4654036e-009 x19 19 11 7 9999 nand2 l1=5.9096046e-008 tox1 = 2.5380340e-009 x22 22 10 16 9999 nand2 l1=5.9218558e-008 tox1 = 2.4408750e-009 x23 23 16 19 9999 nand2 l1=6.2201563e-008 tox1 = 2.3806757e-009
.end
*************************** end of netlist ************************
----> As MOS model I use the following (Briefly speaking I write only the NMOS model):
********************** start of model card ************************** * * Predictive Technology Model Beta Version * 90nm NMOS SPICE Parametersv (normal one) *
.model gpdk090_nmos1v nmos +Level = 49
+Lint = 1.5e-08 Tox = 2.5e-09 +Vth0 = 0.2607 Rdsw = 180
+lmin=1.0e-7 lmax=1.0e-7 wmin=1.0e-7 wmax=1.0e-4 +Tref=27.0 version =3.1 +Xj= 4.0000000E-08 Nch= 9.7000000E+17 +lln= 1.0000000 lwn= 1.0000000 wln= 0.00 +wwn= 0.00 ll= 0.00
... {The rest of the model card is ommited}
********************* end of model card ***************************
----> What I suppose is that the MOS model I use does not permit the instantiation of parameter Tox in the netlist.
---> If I change the model is there a chance that the warning won't be displayed?
---> Only L, W, as, ad, ps, pd MOS parameters can be instantiated in the netlist with values that are different from the ones in the model card???
Thank you for the time you have spent viewing my post
I would be thankful if you proposed me a solution
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Τμήμα-Πανεπιστήμιο-Παιδεία / "Αρχείο επι πτυχίω εξεταστικών" / Re: Βάσεις Δεδομένων πτυχιακή
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on: June 15, 2007, 19:18:53 pm
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Τελικά μίλησα σήμερα το πρωί με τον κ.Μήτκα και μου είπε ότι εφόσον υπάρχουν άτομα που ενδιαφέρονται θα γίνει εξέταση. Είπε ότι θέλει μια λίστα με τα ονόματα όσων ενδιαφέρονται, την οποία κανονικά πρέπει να του τη στείλει η γραμματεία. Από τη στιγμή όμως που δε δηλώσαμε μαθήματα χειμερινών εξαμήνων στη δήλωση για την πτυχιακή μάλλον πρέπει εμείς να το αναλάβουμε αυτό. Για ημερομηνία ανέφερε τέλη Ιουνίου - αρχές Ιουλίου... Go figure !!
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