Agilent Technologies B1500A Training Manual page 103

Charge Pumping
Start
Calculates Vbase
&
Sets meas. parameters
to I_sub sampling test
I_sub sampling meas.
by applying Vg pulse
Records Isub and Vbase
More Vbase?
N
Calculates IcpMax & NSS
Plots Icp vs Vbase
Icp is measured after each increment of the gate pulse base value. A curve of Icp vs base value is
plotted. The maximum Icp value is noted. At this point:
Icp = f * Qss
= f * Ag * q * Dit
where
f: pulse frequency
Qss: recombined charge per pulse period
Aq: channel area of the transistor
q: electron charge
Dit: interface state density
Y
Looping of classic test for each
base step of Gate pulse.
13-19
Module 13
SPGU Control and Applications