Displacement criterion for amorphization of silicon during ion implantation
- 1 December 1981
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 52 (12), 7143-7146
- https://doi.org/10.1063/1.328688
Abstract
Results of Boltzmann transport equation calculations are used to estimate what fraction of a crystalline silicon lattice must be displaced to cause a crystalline‐to‐amorphous transition during ion implantation. Comparison of these calculations with experimental MeV He channeling and backscattering results for 150‐keV boron implantation at 77 °K indicates that the displacement of about 10% of the lattice will cause amorphization provided the substrate is at a temperature which inhibits self‐annealing processes and defect diffusion. The calculations also indicate that the number of atoms displaced is proportional to the deposited energy density, one displacement occurring on average for each 200 eV of deposited energy. Experimental results for room‐temperature silicon implantation confirm the fact that higher temperature substrates require a greater fractional displacement of the lattice before amorphization occurs.Keywords
This publication has 10 references indexed in Scilit:
- An application of the Boltzmann transport equation to ion range and damage distributions in multilayered targetsJournal of Applied Physics, 1980
- Calculations of nuclear stopping, ranges, and straggling in the low-energy regionPhysical Review B, 1977
- Ion implantation in semiconductors—Part II: Damage production and annealingProceedings of the IEEE, 1972
- Damaged regions in neutron-irradiated and ion-bombarded Ge and SiRadiation Effects, 1971
- Depth Profiles of the Lattice Disorder Resulting from Ion Bombardment of Silicon Single CrystalsJournal of Applied Physics, 1970
- A model for the formation of amorphous Si by ion bombardmentRadiation Effects, 1970
- The Role of Damage in the Annealing Characteristics of Ion Implanted SiJournal of the Electrochemical Society, 1970
- ANNEALING CHARACTERISTICS OF n-TYPE DOPANTS IN ION-IMPLANTED SILICONApplied Physics Letters, 1969
- ON THE NUMBER OF ATOMS DISPLACED BY IMPLANTED IONS OR ENERGETIC RECOIL ATOMSApplied Physics Letters, 1969
- The Displacement of Atoms in Solids by RadiationReports on Progress in Physics, 1955