Nova 200 NanoLab: SEM & EDS

Nova 200 NanoLab Instrument Type Microscopy Techniques SEM, EDS, WDS, Immersion Lens Imaging Staff Manager Matthew S. Hunt, PhD Staff Email matthew.hunt@caltech.edu Staff Phone 626-395-5994 Reserve time on LabRunr Request training by email Lab Location B203 Steele Lab Phone 626-395-1542 Manufacturer FEI (now Thermo Fisher) Model {{{Model}}}

Description

The Nova 200 is the KNI's highest-resolution analytical scanning electron microscope (SEM), equipped with an immersion-lens for imaging sub-10 nm features and both energy dispersive spectroscopy (EDS) and wavelength dispersive spectroscopy (WDS) detectors for compositional analysis. It is also outfitted with a gallium focused ion beam (Ga-FIB) column, which is currently not operational because the Nova 600 NanoLab and ORION NanoFab together meet the KNI's Ga-FIB demand; gallium could be reactivated on the Nova 200 the future. See a full list of training and educational resources for this instrument below.

SEM Applications

• Ultra-High-Resolution Imaging (Immersion Mode)
• High-Resolution Imaging (Field-Free Mode)
• Secondary Electron (SE) & Backscattered Electron (BSE) Imaging
• Everhart-Thornley Detector (ETD) & Through-the-Lens Detector (TLD)
• Tungsten deposition via Gas Injection System (GIS)
• Automated imaging with RunScript program & AutoScript language

Analytical Applications

• Compositional analysis with EDS (via x-ray detection)
• Compositional analysis with WDS (via x-ray detection)

Resources

SOPs & Troubleshooting

• SEM SOPs (Short Version | Long Version)
• Ga-FIB SOPs (Short Version | Long Version)
• TEM Lamella Sample Preparation SOPs (Short Version | Long Version)
• Cutting & Imaging Cross-Sections SOP
• Troubleshooting Guide

Video Tutorials

• Getting Started | Basic SEM Alignment
• Astigmatism Correction (Details | On Right-Angle Features | Stigmator Alignment)
• Eucentric Height: What it means, When to use it & How to get there
• Adjusting TLD Voltage to Capture SE vs. BSE Signal

Graphical Handouts

• SEM Concepts
• SEM Alignments
• Guide to Optimizing SEM Imaging

Presentations

• Scanning Electron Microscopy: Principles, Techniques & Applications

Manufacturer Manuals

• Nova NanoLab Operation Manual
• Gas Injection Systems – Deposition of Platinum (Technical Note)
• Gas Injection Systems – Deposition of SiOx (Technical Note)
• Gas Injection Systems – Etching with IEE aka XeF2 Etch (Technical Note)
• Gas Injection Systems – Beam Chemistries Presentation
• Scripting – AutoScript Language Manual (year 2000 Technical Note: most complete)
• Scripting – AutoScript Language Manual (year 2005 Technical Note: less complete, still useful)
• Scripting – RunScript Manual

Specifications

Manufacturer Specifications

• Nova 600 NanoLab Data Sheet (not all parameters apply to our instrument, see below for details specific to the KNI's Nova 600)

Scanning Electron Microscope (SEM) Specifications

• 0.5 to 30.0 kV
• Apertures: 10 mm, 15 mm, 20 mmm, 30 mm
• etc.

Gallium Focused Ion Beam (Ga-FIB) Specifications

• 5.0 to 30.0 kV
• 10 pA - 20 nA
• etc.