High Performance 3D Atom Probe for Advanced Materials and Metals Applications
The LEAP 4000X HRTM is a high performance 3D atom probe microscope which provides nano-scale surface, bulk and interfacial materials analysis of simple and complex structures with atom by atom identification and accurate spatial positioning.
The system works using the principle of field evaporation, whereby a strong electric field applied to the specimen is sufficient to cause removal of atoms by ionization. Atom removal is triggered either via a voltage or laser pulse applied to the sample.
Excellent field of view with good mass
Local electrode and microtip
Local Electrode and Microtips
"LEAP" is derived from Local ElectrodeTM
Atom Probe. The Local ElectrodeTM
provides a strong technological
advantage over systems which do not have
one, improving both ease of use and data
quality. The Local Electrode also
enables the use of prefabricated
MicrotipTM arrays. Using
these enables multiple analytical
specimens to be prepared, mounted and
loaded into the instrument for maximum
efficiency with multi experiment
The LEAP 4000X HR utilizes a novel energy compensated design that combines
optimized mass resolution performance for detailed mass spectral interpretation,
with wide Field-of-view (250 nm achievable). For voltage pulsing applications
(traditionally metals), the performance is excellent and the system provides
very high atom probe mass resolution.
Small spot UV laser
The system uses a UV laser with a tightly focused spot. The small UV laser spot
enables exceptional mass resolution to be obtained. The use of UV wavelength
enables a wide variety of materials, including many insulators, to be analyzed
with good yield. High specimen throughput is obtained by achieving fast pulse
repetition rates. For laser pulsing applications, the LEAP 4000X HR also provides
excellent mass resolving power at full Field from the tightly focused UV laser
spot and long ion flight times.
The LEAP HR offers
excellent mass resolution in voltage and
laser pulse modes. The spectrum to the
left was taken in voltage pulsing mode.
Note that the peaks are clearly