Secondary Ion Mass Spectroscopy – SIMS

Secondary Ion Mass Spectrometry (SIMS) is used for the composition analysis of metals, semiconductors, polymers, biomaterials, minerals, rocks, and ceramics using a mass spectrometer. SIMS is the preferred tool for determining the composition of solid surfaces and thin films in testing labs.

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Overview
Scope, Applications, and Benefits
Test Process
Specifications
Instrumentation
Results and Deliverables

Overview

The analysis of a specimen surface using a highly sensitive characterization technique known as Secondary Ion Mass Spectrometry (SIMS) involves bombarding the surface with a focused primary ion beam, which in turn ejects secondary ions for analysis. The SIMS technique is highly sensitive, allowing detection at the part-per-billion level with nanometer-scale depth resolution, offering a wide range of benefits to materials engineers, researchers, and failure analysts in thin-film characterization, semiconductor analysis, and other high-tech materials analysis.

Scope, Applications, and Benefits

Scope

SIMS uses a focused primary ion beam to sputter material layer by layer, measuring secondary ions sputtered from the surface to identify and quantify composition from the surface down to specified material depths with nanometer-scale depth resolution.

SIMS analysis evaluates:

Elemental and isotopic depth profile distribution across thin film and surface layer material systems
Ultra-trace dopant, impurity, and contamination detection in semiconductor and electronic materials
Surface and interface elemental composition analysis across dissimilar material boundaries
Molecular and organic compound identification in surface and near-surface material regions
Hydrogen, carbon, nitrogen, and light element depth profiling in thin film and coating systems

Applications

Semiconductor device materials requiring dopant concentration and depth profile characterization
Thin film, coating, and multilayer material systems requiring elemental depth profiling
Solar cell, battery, and energy device materials requiring elemental composition analysis
Failure analysis investigations requiring surface contamination and interface composition data
Advanced materials research programs requiring ultra-sensitive surface and depth characterization

Benefits

Delivers ultra-sensitive elemental and isotopic detection at parts-per-billion concentration levels
Provides nanometer-scale depth resolution for thin film and surface layer characterization
Identifies trace dopants, impurities, and contaminants in semiconductor and electronic materials
Reduces material development risk by providing precise elemental depth distribution data early in the characterization cycle

Test Process

Sample Preparation

Specimens cleaned and mounted under high vacuum conditions.

Primary Ion Beam Sputtering

Focused ion beam sputters surface generating secondary ions for analysis.

Secondary Ion Detection

Secondary ions mass spectrometrically detected generating depth profile data.

Data Analysis & Reporting

Depth profiles processed to generate elemental concentration and test compliance result.

Technical Specifications

Parameter	Details
Applicable Materials	Semiconductors, thin films, coatings, multilayer systems, metals, ceramics
Analytical Technique	Primary ion beam sputtering with secondary ion mass spectrometric detection
Detection Capability	Parts-per-billion elemental detection with nanometer depth resolution
Measured Parameters	Elemental identity, isotopic composition, molecular species, depth distribution
Measured Outputs	Depth profiles, isotopic data, surface maps, test compliance result

Instrumentation Used for Testing

High-vacuum SIMS instrument with a focused primary ion beam source
Quadrupole or magnetic sector mass spectrometer for secondary ion detection
Cesium and oxygen primary ion beam sources for electropositive and electronegative element optimization
Certified elemental reference standards for quantitative depth profile calibration
Specialist SIMS depth profile data acquisition and quantification software
Data reporting and elemental depth profile visualization system

Results and Deliverables

Elemental and isotopic depth concentration profiles across defined material regions for all analyzed specimens
Surface and interface elemental composition data for dissimilar material boundaries
Ultra-trace dopant and impurity concentration data at parts-per-billion detection levels
Test compliance result assessed against the defined material specification
SIMS analytical report

Why Choose Infinita Lab for Secondary Ion Mass Spectroscopy – SIMS?

Infinita Lab is a trusted USA-based testing laboratory offering Secondary Ion Mass Spectroscopy – SIMS testing services across an extensive network of accredited facilities across the USA. Infinita Lab is built to serve the full spectrum of modern testing needs—across industries, materials, and methodologies. Our advanced equipment and expert professionals deliver highly accurate and prompt test results, helping businesses achieve quality compliance and product reliability.

Looking for a trusted partner to achieve your research goals? Schedule a meeting with us, send us a request, or call us at (888) 878-3090 to learn more about our services and how we can support you. Request a Quote

Frequently Asked Questions

SIMS is an ultra-sensitive surface and depth analysis technique in which the specimen is sputtered with a focused primary ion beam, and the secondary ions emitted are used for quantitative analysis of elements, isotopes, and molecules at parts-per-billion sensitivity with nanometer-scale depth resolution.

SIMS is used to study semiconductors, thin films, coatings, multilayered material systems, metals, ceramics, polymers, solar cell materials, and electronic device structures, yielding ultra-sensitive elemental and isotopic depth-profile information for a broad range of solid materials and surface-layer configurations.

SIMS offers parts-per-billion sensitivity in elemental detection and nanometer-scale depth resolution, which is substantially better than XPS, AES, and EDS surface analytical techniques and therefore is the technique of choice for ultra-trace dopant profiling, light-element detection, and thin-film elemental depth characterization.

SIMS can achieve nanometer-scale depth resolution for elemental depth profiling, making it suitable for measuring the exact composition of elements on a layer-by-layer basis through thin-film stacks, semiconductor devices, and multilayer coating systems.

The analysis is used in the semiconductor, solar energy, thin-film coating, aerospace, automotive, battery technologies, and advanced materials research industries for dopant profiling, surface contamination investigation, thin-film characterization, and elemental depth-distribution analysis.

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