5.5.2
Viscoelasticity Ta
You can perform viscoelasticity measurement by additionally installing the opti
Lock
-in Amplifier. When the lock-in amplifi
have to set the device using the software to display the tab window for viscoelasticity
measurement.
■ Affixing specimen
In order to observe a viscoelasticity image correctly, it is essential to affix the specimen
firmly to the specimen stub using conductive paste instead of using a double-faced tape.
■ Checking
before approaching
Afte
r affixing the specimen, adjust the laser and the photodiode and perform the coarse
approach
■ Observation o
Observe a topography image of the specimen surface, and confirm that you can obtain an
optimum image. Then retract the tip.
■
Setting th
e Lock-in Amplifier
When us
ing Model 7265
1.
Click
Th
TMPM5200-2
b
ing as you
perform in AC AFM measurement.
f a topography image
on the Lock-in button.
e Lock-In Amplifier dialog box opens.
5 MEASUREMENT OPERATION
er is connected to the SPM controller, you
Specimen
Conductive paste
Specimen stub
onal
5-91
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