Difference between revisions of "Nova 200 NanoLab: SEM & EDS"

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== Resources ==
== Resources ==
===== Equipment Data =====
===== Equipment Data =====
* [https://caltech.box.com/s/xlvbr7cfwiqzcpc9hpq4jxed8mhl6c4j Microscopy Pass-down equipment information]
* [https://caltech.box.com/s/oy9kdmiwszygacoov2ko1a9njb8jghod Microscopy Pass-down equipment information]
===== SOPs & Troubleshooting =====
===== SOPs & Manuals & SDS =====
* [https://caltech.box.com/s/mpsxkxmf5y8wjw9daijwbudeoqkkeudu KNI Microscopy Policies]
* [https://caltech.box.com/s/mpsxkxmf5y8wjw9daijwbudeoqkkeudu KNI Microscopy Policies]
* SEM SOPs ([https://caltech.box.com/s/4yv8f5att77k3zq1rm6p0mqhkd8quslh Short Version] | [https://caltech.box.com/s/xwjdudqdl793gkc5kl71zez5nnc5y2xb Long Version])
* [https://caltech.box.com/s/4f1hqp83pwc1v1k5qke6xi68i28fjvz8 Nova200 and EDS SOP, Manuals, SDS]
* Bruker Quantax EDS SOP ([https://caltech.box.com/s/y6hbvdj4r4n287j1db79t16q5hphp8vn Dashboard])
* [https://caltech.box.com/s/sz9pai0icsntnef6me23veiwtwdui0gm Troubleshooting Guide]


===== Video Tutorials =====
===== Video Tutorials =====
* [https://youtu.be/UfF_ljwvepQ Getting Started] | [https://youtu.be/luC-5TgNPsQ Basic SEM Alignment]
* [https://youtu.be/UfF_ljwvepQ Getting Started] | [https://youtu.be/luC-5TgNPsQ Basic SEM Alignment]
* Astigmatism Correction ([https://youtu.be/YeukVt1Fyi0 Details] | [https://youtu.be/WFfOi-rwlbA On Right-Angle Features] | [https://youtu.be/1syySgnTEqU Stigmator Alignment])
* Astigmatism Correction ([https://youtu.be/YeukVt1Fyi0 Details] | [https://youtu.be/WFfOi-rwlbA On Right-Angle Features] | [https://youtu.be/1syySgnTEqU Stigmator Alignment])
* [https://youtu.be/4V-bE6uqHY4 Eucentric Height: What it means, When to use it & How to get there]
* [https://youtu.be/R_RYbtumU20 Adjusting TLD Voltage to Capture SE vs. BSE Signal]
* [https://youtu.be/R_RYbtumU20 Adjusting TLD Voltage to Capture SE vs. BSE Signal]
* Bruker EDS ESPRIT 2 Software ([https://caltech.app.box.com/file/766742876889 Overview] | [https://caltech.box.com/s/gbzj8crfyhwkvs3aelsjpdfe9zpd8goc Basic Spectrum Collection and ID] | [https://caltech.app.box.com/file/766741864978?s=l77v3pct05r6q856sq53az5t0bugc6n4 Spectrum Acquisiton] | [https://caltech.box.com/s/cjshqsjmpto2sac78xw46anc6j1fl2y6 AutoID Verification] | [https://caltech.box.com/s/lbywvcpdw4t1i892b2bo0qg7jztf23jb Object Mode (Multi-Point Analysis)] | [https://caltech.app.box.com/file/766738174372 Line Profile Analysis])
* Bruker EDS ESPRIT 2 Software ([https://caltech.app.box.com/file/766742876889 Overview] | [https://caltech.box.com/s/gbzj8crfyhwkvs3aelsjpdfe9zpd8goc Basic Spectrum Collection and ID] | [https://caltech.app.box.com/file/766741864978?s=l77v3pct05r6q856sq53az5t0bugc6n4 Spectrum Acquisiton] | [https://caltech.box.com/s/cjshqsjmpto2sac78xw46anc6j1fl2y6 AutoID Verification] | [https://caltech.box.com/s/lbywvcpdw4t1i892b2bo0qg7jztf23jb Object Mode (Multi-Point Analysis)] | [https://caltech.app.box.com/file/766738174372 Line Profile Analysis])
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* [https://caltech.box.com/s/th6cpko7opc9pccn2ukmdc88oh8oa6zw Gas Injection Systems – Delineation Etch for SiO<sub>2</sub>  (Technical Note)]
* [https://caltech.box.com/s/th6cpko7opc9pccn2ukmdc88oh8oa6zw Gas Injection Systems – Delineation Etch for SiO<sub>2</sub>  (Technical Note)]
* [https://caltech.box.com/s/u56ho1hve4pf9713aw09iolukfc8wsb1 Gas Injection Systems – Selective Carbon Etching (Technical Note)]
* [https://caltech.box.com/s/u56ho1hve4pf9713aw09iolukfc8wsb1 Gas Injection Systems – Selective Carbon Etching (Technical Note)]
* [https://caltech.box.com/s/b95pg59k003i9vn8y9elzem0tnxqg3fb Gas Injection Systems – Beam Chemistries Presentation]
* [https://caltech.box.com/s/110tb0o8avjziwa1y4d017dbbcpkxfop Scripting – AutoScript Language Manual (year 2000 Technical Note: most complete)]
* [https://caltech.box.com/s/110tb0o8avjziwa1y4d017dbbcpkxfop Scripting – AutoScript Language Manual (year 2000 Technical Note: most complete)]
* [https://caltech.box.com/s/n0abqy5z1e9a8hbyf38qybxu86sqz3vb Scripting – AutoScript Language Manual (year 2005 Technical Note: less complete, still useful)]
* [https://caltech.box.com/s/tlqgvtkkiahi261megm087i61gqlfzrc Scripting – RunScript Manual]
* [https://caltech.box.com/s/tlqgvtkkiahi261megm087i61gqlfzrc Scripting – RunScript Manual]
* [https://caltech.box.com/s/36j0n01ig7f757kvkiebvqjqj0el2yvp EDAX Genesis EDS & WDS Operation Manual (replaced - historic reference)]
 
* EDAX archived EDS SOPs ([https://caltech.box.com/s/52uckmx1silq90vq918gziohjtbqzyh5 Short Version] | [https://caltech.box.com/s/kukccwu1m8ekfjo6jds4jupvzwsjs3z1 Long Version])


===== Simulation Software =====
===== Simulation Software =====

Revision as of 21:10, 29 June 2022

Nova 200
Nova-200-NanoLab.jpg
Instrument Type Microscopy
Techniques SEM, EDS
Immersion Lens Imaging
Staff Manager Annalena Wolff
Staff Email awolff@caltech.edu
Staff Phone 626-395-5994
Reserve time on LabRunr
Request training by email
Sign up for SEM-FIB email list
Lab Location B203 Steele
Lab Phone 626-395-1542
Manufacturer FEI (now Thermo Fisher)
Model Nova 200 NanoLab

Description

The Nova 200 is the KNI's highest-resolution field-emission gun (FEG) analytical scanning electron microscope (SEM), equipped with an immersion lens for imaging sub-10 nm features and energy dispersive spectroscopy (EDS) 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; Ga-FIB could be reactivated on the Nova 200 in the future. See a full list of training and educational resources for this instrument below.

SEM Applications
  • Ultra-High-Resolution Imaging (Immersion Mode aka UHR Mode)
  • High-Resolution Imaging (Field-Free Mode aka Normal Mode)
  • Secondary Electron (SE) imaging with an Everhart-Thornley Detector (ETD) & Through-the-Lens Detector (TLD)
  • Backscattered Electron (BSE) imaging with a TLD
  • Tungsten deposition via Gas Injection System (GIS)
  • Automated imaging with RunScript program & AutoScript language
EDS Applications
  • Spectrum acquisition for qualitative and quantitative compositional analysis
  • Linescan acquisition for 1D spatial compositional analysis
  • Map acquisition for 2D spatial compositional analysis

Resources

Equipment Data
SOPs & Manuals & SDS
Video Tutorials
Graphical Handouts
Presentations
Manufacturer Manuals


Simulation Software
Calibrate Measurements with NIST Standard
  • The KNI has a NIST-traceable standard against which SEM measurements can be compared. See Slides 54-55 of the SEM Presentation for details. Ask staff for help finding and using the standard in the lab.
Sample Preparation
  • Use the Carbon Evaporator to make non-conductive samples conductive by applying 2-10 nm of evaporated carbon.
  • Use the O2/Ar Plasma Cleaner to remove hydrocarbons from the sample surface to avoid creating dark contamination spots on your features while imaging them.
Order Your Own Stubs
  • Stubs used for mounting specimens are considered a personal, consumable item in the KNI. There are some old stubs at each SEM, yet you should buy your own so that you can keep them clean and available to you. There are many stub geometries and configurations, some of which will be right for you to purchase and keep with your other cleanroom items.
Guide to Choosing KNI SEMs & FIBs

Specifications

Manufacturer Specifications
SEM Specifications
  • Minimum Feature Size Resolved in Immersion Mode: ~5 nm
  • Voltage Range: 0.2 to 30.0 kV
  • Current Range: ~10 pA to 20 nA
  • Apertures: 30 μm, 40 μm, 50 μm, 100 μm
  • Eucentric Height: ~4.8 mm working distance (WD)
  • Stage Range: ±25 mm X & Y travel, 50 mm Z travel, -12 to 58° tilt, 360° rotation
  • ETD Grid Bias Range: -150 to 300 V
  • TLD Bias Range: -100 to 150 V
  • Ultimate Vacuum: 5e-6 mbar



Related Instrumentation in the KNI

Scanning Electron Microscopes (SEMs)
Focused Ion Beam (FIB) Systems
Sample Preparation for Microscopy
Transmission Electron Microscopes
Scanning Probe Microscopes