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  MFM01

High resolution long lifetime magnetic probes MFM01 series

MFM01/15 (15 separated chips), 560,00 €
MFM01/50 (50 separated chips), 1590,00 €

The choice of the proper probe is very important during magnetic measurements. The magnetic probe should provide high resolution images with good magnetic signal. Besides it should “survive” under high-humidity conditions.
High resolution long lifetime magnetic probes MFM01 and MFM10. Special protective layers help to avoid oxidation and increase the cantilever lifetime substantially. Sharp silicon tip with coating less than 35 nm allows obtaining lateral magnetic resolution till 20-30 nm!
 
 

SEM photo of the MFM01 probe tip.
Curvature radius is about 30nm.

Survival test – 30 days in high* humidity conditions!
*close to 100% without water condensation
 
 
Magnetic structure of a hard disk drive, which was obtained by MFM01 probe in ambient conditions
Magnetic structure of a hard disk drive obtained by MFM01 probe which was kept in the high humidity conditions within 30 days
 

MFM01 series specification

Material

Highly doped Si

Chip size

3.4x1.6x0.3mm

Reflective side coating

Au

Tip side coating

CoCr magnetic coating with additional layers protecting from oxidation

Cantilever number

1 rectangular

Tip curvature radius

typical 35-40nm

Coating thickness

30-40 nm

Guaranteed cantilever lifetime is 1 year if it’s storaged at the normal conditions (humidity 30-40%).

 
Cantilever series
Cantilever length, L±10 µm
Cantilever width, W±5 µm
Cantilever thickness,
T±0.5 µm
Resonant frequency, kHz
Force constant, N/m
min
typical
max
min
typical
max
MFM01
225
32
2.5
47
70
90
1
3
5

 *At customer request we can make probes with different coating thickness to achieve different magnetic moments which will be the best for measuring of your samples.

 
 
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