help!___how to find the BJT B-E junction Is from the model?

[saiaoying]

Hello everyone
could you do me a favour?

given the following PNP model,how can i find the BJT B-E junction reverse saturation current Is from the PNP mode?,i gues that the Is maybe is ise=1.22e-016,but i don't know for sure,and what is it's unit?finally in one word i just want to get B-E junction Is to calculate VEB(according to VEB≈(kT/q)ln(IE/Is)).

i need help,please give me a hand!!!

**************************************************************
* PNP2 SPC: N+/NWELL=1.5 OVL: NWELL/P+=0.8
**************************************************************
.model pnp2 pnp level = 1
**************************************************************
* GENERAL PARAMETERS
**************************************************************
+tref = 25
**************************************************************
* CAPACITANCE PARAMETERS
**************************************************************
+cjc = 1.0139e-013 cje = 2.833e-013 cjs = 0 fc = 0.75
+mjc = 0.4405 mje = 0.4036 mjs = 0.5 vjc = 0.6173
+vje = 0.7 vjs = 0.75 xcjc = 0.5 cbcp = 0
+cbep = 0 ccsp = 0 itf = 0.1 ptf = 0
+tf = 1e-010 tr = 0 vtf = 10 xtf = 1
**************************************************************
* DC PARAMETERS
**************************************************************
+nkf = 0.9907 is = 1.32e-016 rb = 11.145 re = 0.4052
+irb = 0.000999 rc = 5.1154 rbm = 7.3135 bf = 27.054
+nf = 1.0023 vaf = 41.565 ikf = 0.0119 ise = 1.22e-016
+ne = 1.8453 br = 0.00517 nr = 1 var = 10
+ikr = 0.1 isc = 9.1e-018 nc = 1.5145
**************************************************************
* TEMPERATURE PARAMETERS
**************************************************************
+xtb = 2 xti = 6.5 eg = 1.1 ctc = 0.01439
+cte = 0.0009076 tlev = 0 tlevc = 1 tvjc = 0.002308
+tvje = 0.001524


given the PNP model,how can i find the BJT B-E junction reverse saturation current Is from the PNP mode?,i gues that the Is maybe is ise=1.22e-016,but i don't know for sure,and what is it's unit?finally in one word i just want to get B-E junction Is to calculate VEB(according to VEB≈(kT/q)ln(IE/Is)).

i need help,please give me a hand!!!

 

[hr_rezaee]

Hi

in hspice manual:

IBE (amp) Reverse saturation current between base and emitter. If you specify both IBE and IBC,
simulation uses them in place of IS to calculate
DC current and conductance; otherwise, the
simulator uses IS.
IBEeff =IBE . AREA . M

IS (amp) Transport saturation current. If you specify both IBE and IBC, simulation uses them in place of IS to calculate DC current and conductance;
otherwise, simulation uses IS.
ISeff =IS . AREA . M

regards