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Capless anneal of ion-implanted GaAs in controlled arsenic vapor

Journal Article · · J. Appl. Phys.; (United States)
DOI:https://doi.org/10.1063/1.325649· OSTI ID:6510788
GaAs wafers were implanted with sulfur or silicon ions and annealed at temperatures from 800 to 950 /sup 0/C under arsenic partial pressure controlled by arsine (AsH/sub 3/) flow. Electrical characteristics obtained in this method were nearly identical or superior to those obtained with dielectric films. No sign of surface deterioration was observed even after annealing at 950 /sup 0/C. The implantation into a Cr-doped epitaxial layer resulted in better characteristics than into semi-insulating substrates from a vender. The best doping efficiency of 89% was obtained with a dose of 1 x 10/sup 13/ Si/sup +//cm/sup 2/. The method is simple and reproducible, and suitable for the annealing process in production.
Research Organization:
Sony Corporation Research Center, 174, Fujitsuka-cho, Hodogaya-ku, Yokohama, Japan
OSTI ID:
6510788
Journal Information:
J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 50:1; ISSN JAPIA
Country of Publication:
United States
Language:
English