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how to measure leakage current or leakage power using HSPICE

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hi~ there~

please help me~ T.T
how to measure leakage current or leakage power using HSPICE?
here is my .spice~


+++++++++++++++++++++++++++++++++++++++++++++++++
.include ../nd2.spice
vdd vdd 0 1.8
vss vss 0 0
.param slew = 0.04n
.param load = 0.01p

vin1 a 0 pwl(0 0v 10n 0v '10n+slew' 0v 20n 0v)
vin2 b 0 pwl(0 1.8v 10n 1.8v '10n+slew' 1.8v 20n 1.8v)
x1 vdd vss f b a nd2

cload f 0 load

.tran 1n 20n

.meas -------------------------------???

.temperature 27
.include ../model.inc

.param toxn = 0
.param xln = 0
.param xwn = 0
.param toxp =0
.param xlp = 0
.param xwp = 0

.print -------------------------------???
.end
+++++++++++++++++++++++++++++++++++++++++++++++++
 

Hi

I am in such situation. I would be thankful if you say how did you handle it?

What HSpice code you use for gate leakage current?

Thanks in advance
--Saeid
 

If I am not correct then leakage current is unnecessary current flowing to ground. If it is NAND gate then try to understand what are the sources of leakage current in NAND gate.

Below one you can experiment.
While doing NAND connection, rather than connecting VSS directly, put ammeter in between NAND and VSS. and

plot for the current.

Power is P=VI. Plot for the same.
 

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