Methods
Element Determination
- Optical plasma emission spectroscopy (ICP-OES)
Quantitative multi-element screening of aqueous solutions, acid mixtures and solids after digestion. Detection sensitivity in the ppb range. - Plasma mass spectrometry (ICP-MS)
Quantitative multi-element screening of aqueous solutions, acid mixtures and solids after digestion. Detection limits in the ppt range. - Graphite furnace atomic absorption spectroscopy (GF-AAS)
Quantitative determination of silicon in aqueous solutions down to the ppb range. - Ion chromatography (IC)
Determination of inorganic and organic anions and cations, as well as dissolved silicon. Detection limit in the ppt range after concentration. - Halogen analysis:
Determination of the total halogen content (F, Cl, Br, I) in inorganic and organic solids and liquids after thermal oxidation. - Carbon determination (TOC)
Determination of inorganic and organically bound C in aqueous solutions down to the ppb range. - Elemental analysis of P and S:
Determination in solutions and solids after pressure decomposition. - Vapour Phase Decomposition (VPD-ICP-MS)
Analysis of wafer contamination by etching with hydrofluoric acid vapours, using ICP-MS. - Leach Out Tests according to SEMI F40 / F57
IPC TM-650 Test
Surface Analysis
- Light Microscopy
Color imaging of surfaces at high magnifications. - Scanning Electron Microscopy with Energy-dispersive X-ray Spectroscopy (SEM/EDS)
Examination of topography and composition at very high magnifications. - Photoelectron Spectroscopy (XPS / ESCA)
Surface-sensitive determination of the elemental composition including information on the bonding states. - Infrared Spectroscopy (FTIR)
Analysis of organic components. - Vapour Phase Decomposition (VPD-ICP-MS)
Analysis of wafer contamination by etching with hydrofluoric acid vapours, using ICP-MS. Laser-induced desorption mass spectrometry (LIMS / LDMS)
Determination of Organic Components
- Gas chromatography with mass spectrometer (GC-MS)
Analysis of organic components in liquids and solids. - Gas chromatography with flame ionization detector (GC-FID)
Determination of residual oil in compressed air - Gas chromatography with thermal conductivity detector and flame ionization detector (GC-WLD-FID)
Analysis of gases for impurities. - Infrared spectroskopie (FTIR)
Analysis of organic components. - Residual gas MS
Determination of organic trace contaminants in air and other gases. Carbon determination (TOC)
Determination of inorganic and organically bound C in aqueous solutions down to the ppb range.
Thermal Analyses
- Differential scanning calorimetry (DSC)
Determination of material properties such as melting point, glass transition temperature, ... . - Thermomechanical analysis (TMA)
Determination of thermomechanical properties. Thermogravimetry (TG)
Investigation of processes that can be characterized on the basis of mass loss or mass gain.
Particle Analysis
- Residual contamination analysis / technical cleanliness (TecSa)
Extraction and analysis, e.g. according to VDA 19.1 or ISO 16232. - Air measurements of particles
Filtration of air and subsequent analysis of the filters. - Single particle ICP-MS
Simultaneous detection of particle size distribution and composition of particles in the nm range. On- an offline-measurement of particles in liquids using LPC
Detection of particle sizes in liquids.
Electrochemical methods
- Voltammetry / Cyclovoltammetry
Recording of current-voltage curves to determine the chemical composition of samples. - Amperometry
Determination of concentrations using the time-dependent current curve at a constant applied voltage. - Coulometry
Determination of concentrations on the basis of Faraday's law. Elektrochemical impedance spectroscopy
Characterization of systems/samples by applying an alternating voltage.
Other methods
- Viskometry
Determination of the viscosimetry/viscosity of media.