Nanosurf easyScan 2 AFM, Руководство по эксплуатации

Страница: 42 / 164

P
REPARING FOR
M
EASUREMENT
42
If the surface is dusty, try to measure on a clean area between the dust. It is
possible to blow coarse particles away with dry, oil free air, but small parti-
cles generally stick so well to the surface that they can not be removed. Note
that bottled pressurised air is generally dry, but pressurised air from an in-
house supply is generally not. In this case an oil filter should be installed.
Blowing dust away by breath is not advisable, because it is not dry.
When the surface is contaminated with grease, oil or something else, the
surface should be cleaned with a solvent. Suitable solvents are distilled or
demineralised water, alcohol or acetone, depending on the contaminant.
The solvent should be very pure, in order to prevent the collection of impu-
rities on the surface when the solvent evaporates. The sample should be
cleaned several times to remove dissolved and redeposited contaminants if
it is very contaminated. Delicate samples can be cleaned in an ultrasound
bath.
Nanosurf Samples
Nanosurf delivers various optional samples that are usually packed in the
AFM Tool kit. These samples are described here. The description of the
AFM Extended Sample kit is included in the Extended Sample kit.
All samples should be kept in their box. Then it should be unnecessary to
clean them. Cleaning is not advisable, because the grids is rather delicate.
Grid: 10 µm / 100 nm
The Grid: 10 µm/100 nm can be used for testing the xy-calibration of the
70 µm and 100 µm scanners and for testing z-calibration. It is manufac-
tured using a standard silicon process that produces silicon oxide squares on
Structure of Grid: 10 µm / 100 nm
100 nm
10 µm