JEOL JSPM-5200 Instructions Manual page 215

５ MEASUREMENT OPERATION
b.
Click on the
window, and then select Linear current from the pull-down menu.
c.
Click on the
Parameters window, and then select 1.00 V/nA from the pull-
This value determines the preamp
current gets saturated, decrease the gain.
d.
Select Auto by clicking on the radio button for Ramp
button changes to " ".
Ramp Direction determines the scanning direction of the bias voltage for I-V
measurement. If Auto is
voltage specified for Bias/V on the SPM Parameters window.
Suppose that Bias/V is set to 1.0 V, and Low Voltage/V to –1.0 V and High Volt-
age/V to 1.0 V.
If Auto is selected, the scanning will be performed from +1
If Up is selected, the scanning will be performed from –1.0 V to +1.0 V regardless
of the value specified for Bias/V.
If Down is selected, the scanning will be performed from +1.0 V to –1.0 V regard-
less of the value specified for Bias/V.
e.
Click on the
the pull-down menu.
This specifies the number of I-V measurements for data averaging. Increase the
number particularly when data is noisy o
f.
Click on the
select 128 from the pull-down menu.
This specifies the number of points for I-V measurement. The possible number is up
to 2048 points.
g.
Click on the
the pull-down menu.
The I–V measurement is set to the specified SPS mode.
The foregoing are typi
1 1.
Click on the
Single SPS from the pull-down menu.
12.
Click on the R
P arameters window.
The I-V measurement will start. When you want to change the I-V display method
change it after grabbing
menu in the main menu bar.
5-152
button in the Source selection box on the SPS Parameters
button in the Preamp Gain selection box on the SPS
selected, scanning is performed from a voltage near the
button in the No to
button in the Number of Points selection box, and then
button in the SPS Mode selection box and select I—V from
cal settings of SPS Parameters.
button in the Acquisition selection box, and then select
epeat button on the Advanced tab window of the SPM
the data by using the Plot parameters item of the Display
If the measurement position is changed with this method, t
becomes the initial position. Therefore, when scanning has been finished or
Abort has been performed, the cantilever tip is at the initial position.
lifier gain for I-V measurement. If the measured
Average s election box nd select 1 from
r when a current t
down menu.
Direction; then the
.0 V to –1.0 V.
a
o measure is very small.
he changed position
TMPM5200-2
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