Introduction
The document introduces the MULTISCAN STM, a new stage for the MULTISCAN LAB™, designed to meet the increasing complexity of applications requiring high-resolution structural and chemical analysis of nanometer-scaled structures. The integration of different analysis technologies is emphasized as crucial for obtaining complementary information from the same sample area.
Specifications
The MULTISCAN STM features a goniometer-mounted design with a UHV Gemini Column and NanoSAM energy analyser. It offers a scan range of 6 x 6 x 1.5 µm in XYZ, maintaining stability criteria of a state-of-the-art SPM. The design includes a spring-loaded sensor exchange with a non-magnetic tip carrier, minimizing magnetic stray fields for superior low-energy SEM performance. The system achieves SEM resolution below 3 nm and Scanning Auger Microscopy resolution below 10 nm.
Performance
The document highlights the system's ability to achieve atomic resolution STM on Au(111) at 70 K with a scan range of 5x5 nm, and on Si(111)-(7x7) with a tunneling current of 1 pA over a 50x50 nm range. SEM images demonstrate excellent resolution at low beam energy, with examples including ZnO insulating nanocrystals and Au islands on Carbon, achieving resolutions below 3 nm.
Technological Innovations
The MULTISCAN STM incorporates a new scanner design allowing optimal and simultaneous SEM and SAM operation with SPM under different rotation angles. The NanoSAM energy analyser enhances chemical analysis capabilities, pushing resolution limits to sub-10 nm benchmarks.
Conclusion
The MULTISCAN STM, integrated into the MULTISCAN LAB™, represents a complete UHV system solution, offering advanced capabilities for high-resolution analysis in nanotechnology applications. The document notes that specifications and descriptions are subject to change without notice.
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