Cross-Sectional Analysis Techniques for Materials & Electronic Devices
Cross-sectional analysis techniques are analytical methods used to study the internal structure and properties of materials by analyzing thin sections of the material. These techniques can provide valuable insights into the microstructure and properties of materials, including defects, surface roughness, and layer thickness.
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- Overview
- Scope, Applications, and Benefits
- Test Process
- Specifications
- Instrumentation
- Results and Deliverables
Overview
Cross-sectional analysis is a destructive method of peeking inside the material and looking at its inner structure and how different materials meet at the boundaries. The material is cut and polished to allow us to look at its cross-section and see what is inside the material and how it is structured on the inside.
This method is widely used in failure analysis, electronics analysis, and metallurgical analysis. With the advent of new technology and the use of Focused Ion Beam-Scanning Electron Microscopy (FIB-SEM), it is possible to explore the inner features of the material and how different materials meet at the boundaries.
Scope, Applications, and Benefits
Scope
Cross-sectional analysis is a popular technique for “looking inside” a variety of materials and parts. This is a powerful technique for “mapping” the composition and quality of each layer, bonding, defects, voids, and other internal features that are never visible on the surface. This is a vital technique for quality control, failure analysis, and research in a variety of applications.
Cross-sectional analysis is widely applied to:
– Metals and alloys
– Coatings and thin films
– Composite materials
– Polymers and multi-layer structures
Applications
- Failure analysis of electronic devices
- Metallographic examination of metals and alloys
- Inspection of solder joints and electronic packaging
- Layer thickness measurement in coatings and thin films
- Contamination and defect identification
- Microstructure evaluation of materials
- Quality control of manufactured components
- Semiconductor device analysis
- 3D structural analysis using serial tomography
Benefits
- Reveals internal structure and layer interfaces
- Identifies manufacturing defects and failure mechanisms
- Enables detailed microstructural characterisation
- Supports contamination and chemical identification
- Provides dimensional measurements at the micrometre scale
- Allows targeted analysis using FIB-SEM
Test Process
Sample Preparation
The sample is sectioned and mounted in epoxy to stabilize and preserve internal structures.
1Grinding and Polishing
The mounted sample is ground and polished to obtain a smooth cross-sectional surface.
2Microscopic Examination
Optical microscopy or SEM is used to observe internal structures and interfaces.
3Advanced Analysis
Techniques such as SEM/EDS, FIB-SEM, and tomography provide detailed compositional and microstructural insights.
4Technical Specifications
| Parameter | Details |
|---|---|
| Preparation Method | Cutting, epoxy mounting, vacuum impregnation, grinding, and polishing |
| Analysis Scale | Micrometre to full-device level |
| Analysis Types | Structural, dimensional, chemical, and contamination analysis |
| Applicable Materials | Metals, polymers, semiconductors, composites, coatings, electronic assemblies |
| Advanced Technique | Focused Ion Beam – Scanning Electron Microscopy (FIB-SEM) |
| Output | Microstructural images, elemental composition, dimensional measurements |
Instrumentation Used for Testing
- Optical metallographic microscope
- Scanning electron microscope (SEM)
- Energy dispersive spectroscopy (EDS) system
- Focused ion beam scanning electron microscope (FIB-SEM)
- X-ray fluorescence (XRF) analyser
- Electron backscatter diffraction (EBSD) system
- Fourier transform infrared spectroscopy (FTIR) system
Results and Deliverables
- Cross-sectional microstructure images
- Layer thickness and dimensional measurements
- Elemental composition analysis
- Defect and failure mechanism identification
- Contamination analysis reports
- 3D tomography reconstruction (if applicable)
- Metallographic evaluation reports
Why Choose Infinita Lab for Cross-Sectional Analysis Techniques?
Infinita Lab is a leading provider of cross-sectional analysis techniques and streamlined material testing services, addressing the critical challenges faced by emerging businesses and established enterprises. With access to a vast network of over 2,000+ accredited partner labs across the United States, Infinita Lab ensures rapid, accurate, and cost-effective testing solutions. The company’s unique value proposition includes comprehensive project management, confidentiality assurance, and seamless communication through a Single Point of Contact (SPOC) model. By eliminating inefficiencies in traditional material testing workflows, Infinita Lab accelerates research and development (R&D) processes.
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
Cross-sectional analysis is a destructive technique that enables engineers to look inside materials, parts, or devices by cutting a cross-section and polishing it for microscopic and chemical examination.
It enables engineers to look inside the layers, interfaces, cracks, and voids that are not visible from the outside and helps pinpoint the causes of failures in both electronic and mechanical components.
The cross-sectional technique may be employed on metals, polymers, composites, coatings, semiconductors, electronic components, and layered materials.
They are typically cut into sections that are then encased in an epoxy resin. The sections are ground and polished to give a smooth surface ready for microscopic examination.
The techniques that are most commonly employed are SEM/EDS, FTIR, XRF, EBSD, metallographic microscopes, and FIB-SEM.
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