Silicon nitride cantilevers, SiN probes, Hydra, Nitra Tall

SILICON NITRIDE PROBES

AppNano offers two series of silicon nitride cantilevered probes:

Hydra series- a hybrid probe with nitride cantilever and a silicon tip and
Nitra series- features both the cantilever and tip made up of silicon nitride

HYDRA SERIES:

HYDRA probes are the world’s first true hybrid probes- low stress silicon nitride cantilevers integrated with sharp single crystal silicon tips
Silicon tip is integrated on a silicon pad for increased laser reflectivity without metal coating
This unique design ensures stable imaging in liquid without thermal drift
Available in rectangular (R) or triangular (V) shaped cantilevers of different lengths and thickness to enable various modes of AFM in both air/liquid media
Ideal for imaging soft biological samples in their aqueous environment
Silicon tips can be made hydrophobic or hydrophilic for functionalization studies
Tip can be made conductive by backside metal coating for electrical measurements

HYDRA-2R-50N:	For Contact /Spectroscopy/ Tapping™ applications in liquid
HYDRA-2R-100N:	Ideally suited for Contact mode in liquid
HYDRA-6R-100N:	For Tapping mode in liquid/air
HYDRA-6R-200N:	For Contact mode/Spectroscopy applications in liquid

Cantilever Specs. *	2R-50N	2R-100N	6R-100N	6R-200N
k (N/m)	0.084	0.011	0.284	0.035
f (kHz)	77	21	66	17
Length (μm)	50	100	100	200
Width (μm)	35	35	35	35
Thickness (µm)	0.2	0.2	0.2	0.2
Coating (reflex side)	Au None

Tip specs. *	2R-50N/2R-100N/ 6R-100N/6R-200N
Material	Silicon
Shape	Tetrahedral
Height (μm)	4-6
ROC (nm)	<10
Options	Tipless
Special option	Au coating

HYDRA V- SHAPED CANTILEVERS:

V shaped cantilevers are more stable to torsional or lateral forces that makes them ideal probes for imaging samples with high adhesive forces, deep trenches and contact mode imaging in general.

HYDRA-4V-100N:	Contact/Tapping/Spectroscopy in liquid/air
HYDRA-6V-100N:	Tapping mode applications in liquid/air
HYDRA-6V-100W:	Tapping mode applications in liquid/air
HYDRA-6V-200N:	Contact mode/Spectroscopy in liquid
HYDRA-6V-200W:	Contact mode/Spectroscopy in liquid

HYDRA- V Shape Silicon Nitride AFM Probes

Cantilever Specs. *	4V-100N	6V-100N	6V-100W	6V-200N	6V-200W
k (N/m)	0.088	0.292	0.405	0.045	0.081
f (kHz)	42	66	67	17	17
Length (μm)	100	100	100	200	200
Width (μm)	18	18	25	22	40
Thickness (µm)	0.4	0.6	0.6	0.6	0.6
Coating (reflex side)	Uncoated Au

Tip specs. *	4V-100N/6V-100N/ 6V-100W/6V-200N/6V-200W
Material	Silicon
Shape	Tetrahedral
Height (μm)	4-6
ROC (nm)	<10
Options	Tipless (TL)
Special option	Au coating (GG)

HYDRA-ALL:

4-in-1 probe chip with cantilevers with different stiffness and resonance frequencies for different modes of AFM applications.

Cantilever	k (N/m)	f (kHz)	Length (µm)	Width (µm)
A	0.292	66	100	18
B	0.045	17	200	22
C	0.405	67	100	25
D	0.081	17	20	40
Coating	Au/Uncoated (reflex side)

Tip specifications
Material	Si
Shape	Tetrahedral
Height (μm)	4-6
ROC (nm)	<10
Coating	Uncoated
Special option	Tip with larger radius Au coating (GG)

VSCAN AIR:

V-shaped silicon nitride cantilevered probe with sharp silicon tip designed for SCAN-ASYST mode. The reflex side is coated with Aluminum for enhanced reflectivity.

Cantilever Specs. *
k (N/m)	0.292
f (kHz)	66
Length (μm)	100
Width (μm)	18
Coating (reflex side)	Al

Tip specs. *
ROC (nm)	<10
Height (μm)	4-6
Shape	Tetrahedral
Coating	Uncoated
Special option	Tip with larger radius

NITRA SERIES:

Nitra probes feature low stress silicon nitride cantilever and silicon nitride tip
We offer two types of NITRA probes (i) NITRA-TALL and (ii) NITRA-ALL probes

NITRA-TALL:

NITRA-TALL is our NEW series of nitra probes for imaging tall biological specimens without tip sidewall artifacts

Low stress silicon nitride cantilever and tip
Tip integrated on a Silicon pad- for high SUM signal without metal coating- for stable imaging
Tall tip with high aspect ratio and tip ROC 30 nm - ideal for imaging soft bio samples
Available in rectangular (R) and V shaped cantilevers with different lengths and thickness for contact mode applications in liquid/air

NITRA-TALL 2-in-1 Silicon Nitride tip AFM probes

Tip specs. *
Material	Silicon nitride
Shape	Tetrahedral
Height (μm)	14-16
ROC (nm)	>30
Coating	None
Included Angle	15°
Special option	Au coating (GG)

R Cantilever specs. *	A	B
k (N/m)	0.1	0.02
f (kHz)	20	8
Length (µm)	130	230
Width (µm)	35	35
Thickness (µm)	0.55	0.55
Coating (reflex side)	Au/Uncoated

V Cantilever specs. *	A	B	C	D
k (N/m)	0.16	0.03	0.24	0.06
f (kHz)	26	10	30	11
Length (µm)	105	205	105	205
Width each leg (µm)	15	20	22	40
Thickness (µm)	0.55	0.55	0.55	0.55
Coating (reflex side)	Au/Uncoated

is a 4-in-1 probe chip with four silicon nitride probes of varying spring constants. The cantilever and tip are monolithic silicon nitride material. The probe is designed to work with soft biological samples in a variety of applications in liquid/air.

NITRA-ALL 4-in-1 Silicon Nitride tip AFM Probes

Cantilever	k (N/m)	f (kHz)	Length (µm)	Width (µm)
A	0.292	50	100	18
B	0.045	15	200	22
C	0.405	53	100	25
D	0.081	16	200	40
Coating	Au (reflex side)
Material	Silicon nitride

Tip specs. *
Material	Silicon nitride
Shape	Tetrahedral
Height (μm)	10
ROC (nm)	<30
Coating	None
Special option	Au coating

* - Nominal values

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Cantilever Specs.