학술논문

Ultra-shallow arsenic profiling using enhanced depth-resolution analysis technique with medium energy ion scattering
Document Type
Conference
Source
The Fourth International Workshop on Junction Technology, 2004. IWJT '04. Juction technology Junction Technology, 2004. IWJT '04. The Fourth International Workshop on. :76-80 2004
Subject
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Annealing
Light scattering
Atomic layer deposition
Energy resolution
Ion beams
Particle scattering
Electrostatic analysis
Integrated circuit measurements
Materials science and technology
Calibration
Language
Abstract
Medium Energy Ion Scattering (MEIS) using a toroidal electrostatic analyzer (TEA) with an energy resolution (/spl Delta/E/E) of 4 x 10/sup -3/ has been used for ultra-shallow depth profiling of As implanted in Si at 1-5 keV to a dose of 1.2 /spl times/ 10/sup 15/ ions/cm/sup 2/ before and after RTA and spike annealing. Depth profiling results extracted from MEIS spectra were compared with those of simulation and SIMS measurement. The arsenic re-distribution close to the surface after spike annealing was found by MEIS and SIMS measurements.