Surface chemical analysis — Secondary-ion mass spectrometry — Method for depth profiling of arsenic in silicon
表面化学分析——二次离子质谱法——硅中砷的深度剖面分析方法
发布日期:
2010-11-08
ISO 12406:2010规定了二次离子质谱方法,使用磁扇形或四极质谱仪对硅中的砷进行深度剖析,并使用触针轮廓术或光学干涉法进行深度校准。该方法适用于砷原子浓度在1 × 1016原子/cm3和2.5 × 1021原子/cm3之间的单晶、多晶或非晶硅样品,以及50 nm或更深的坑深度。
ISO 12406:2010 specifies a secondary-ion mass spectrometric method using magnetic-sector or quadrupole mass spectrometers for depth profiling of arsenic in silicon, and using stylus profilometry or optical interferometry for depth calibration. This method is applicable to single-crystal, poly-crystal or amorphous silicon specimens with arsenic atomic concentrations between 1 x 1016 atoms/cm3 and 2,5 x 1021 atoms/cm3, and to crater depths of 50 nm or deeper.