Article ID Journal Published Year Pages File Type
1241251 Spectrochimica Acta Part B: Atomic Spectroscopy 2008 9 Pages PDF
Abstract

2-D elemental distribution of Ge in silicon oxide substrates with differing implantation doses of between 3 × 1016 cm− 2 and 1.5 × 1017 cm− 2 has been investigated by Laser-Induced Breakdown Spectroscopy (LIBS). Spectral emission intensity has been optimized with respect to time, crater size, ablation depth and laser energy. Atomic Force Microscopy (AFM) and Scanning Electron Microscopy (SEM) coupled with Energy-Dispersive X-Ray Spectroscopy (EDX) have been utilized to obtain crater depth, morphology and elemental composition of the sample material, respectively. LIBS spectral data revealed the possibility of performing 2-D distribution analysis of Ge atoms in silicon oxide substrate. EDX analysis results confirmed that LIBS is capable to detect Ge atoms at concentrations lower than 0.2% (atomic). LIBS as a fast semi-quantitative analysis method with 50 µm lateral and 800 nm depth resolution has been evaluated. Results illustrate the potential use of LIBS for rapid, on-line assessment of the quality of advanced technology materials during the manufacturing process.

Related Topics
Physical Sciences and Engineering Chemistry Analytical Chemistry
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