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Beryllium-ion implantation in InP and In/sub 1-x/Ga/sub x/As/sub y/P/sub 1-y/

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.90573· OSTI ID:6510830
Anneal temperatures > or =700 /sup 0/C are necessary to obtain maximum electrical activation of implanted Be in InP. At these temperatures, activation >50% is generally achievable. Both the implant temperature and implanted-Be concentration affect p-n junction depth and presumably, therefore, the in-diffusion of implanted Be. For room-temperature implants, the maximum Be concentration which showed insignificant in-diffusion was 3 x 10/sup 18/ cm/sup -3/. Using a multienergy implant schedule (highest energy 400 keV), which results in a flat as-implanted Be concentration of approx. =3 x 10/sup 18/ cm/sup -3/, sheet hole concentrations as high as 2.2 x 10/sup 14/ and 1.5 x 10/sup 14/ cm/sup -2/ have been obtained in InP and In/sub 0.75/Ga/sub 0.25/As/sub 0.52/P/sub 0.48/, respectively.
Research Organization:
Lincoln Laboratory, Massachusetts Institute of Technology, Lexington, Massachusetts 02173
OSTI ID:
6510830
Journal Information:
Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 34:1; ISSN APPLA
Country of Publication:
United States
Language:
English