Olympus OMCL-AC160TS-W2 사용자 설명서 - 페이지 3

{카테고리_이름} Olympus OMCL-AC160TS-W2에 대한 사용자 설명서을 온라인으로 검색하거나 PDF를 다운로드하세요. Olympus OMCL-AC160TS-W2 4 페이지. Micro cantilever

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2) Place two pieces of paper on the working desk, e.g. Post-it

3) Take out the cantilever wafer from the case with the flat-tip tweezers and place it on the

working desk.

Caution

 It is recommended that precautions be taken to prevent damage to the

cantilever tips from electrostatic discharge.

4) As illustrated below, place the papers with a space to hold the cantilever wafer. Make sure

that the space is narrower than the diameter of the cantilever wafer (4 inch or 10 cm).

less than 4 inch

a piece of

paper

Cantilever

wafer

Space

Working desk

5) Push gently the center of the chip (arrow in

the illustration) with the sharp-pointed

tweezers to snap the support arms

Press here

7) Put away the cantilever wafer in the case for storage.

which is available in your office.

Base silicon wafer

Cantilever wafer

Replace the cantilever wafer on the two

pieces of paper so that space is left between

the cantilever wafer and the working desk.

A paper-thickness as Post-it

is good

enough to leave a space between the wafer

and the desk. Do NOT insert thick papers.

6) Pick up the chip carefully by the long side

with the tweezers and mount it on the

cantilever holder of your AFM.

- 5e -

Tip shape of Tetrahedral tip

Tip shape and scan line profile

The apex of the tetrahedral tip becomes sharper due to an oxide sharpening process. The

tip angle around a few hundreds nano meter down from the apex, is about 15 to 25

degrees (see below).

As can be seen in the left illustration, a

tetrahedral tip is located at the exact end of

the cantilever.

The finite tip shape will determine the scan

line profile as in the illustrations below.

The tip profile is symmetric with a half tip

angle of 18 degrees macroscopically (see left

below).

The side tip profile is asymmetric with a tip

angle of 35 degrees. Then the cantilever chip

is attached to a chip holder in your AFM with

an angle, about 10 degrees, the asymmetry is

improved (see right below).

- 6e -