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Ion-beam synthesis of buried yttrium silicide

Conference ·
OSTI ID:5066980
 [1];  [2]
  1. Cornell Univ., Ithaca, NY (USA). Dept. of Materials Science and Engineering
  2. Sandia National Labs., Albuquerque, NM (USA)

Buried single-crystal YSi{sub 1.7} layers have been synthesized using high fluence implants of 330 keV yttrium ions into (111) Si held at 450{degrees}C followed by post-implant anneals of 1000{degrees}C. Rutherford backscattering spectrometry showed that an implant fluence of 3.6 {times} 10{sup 17} Y/cm{sup 2} forms a continuous layer of uniform thickness. Whereas, implant fluences of 1--2 {times} 10{sup 17} Y/cm{sup 2} form a thin continuous YSi{sub 1.7} layer with what are believed to be Y-silicide precipitates above and below the YSi{sub 1.7} layer. Strains resulting from the YSi{sub 1.7} layers were evaluated from x-ray rocking curves using a double crystal diffractometer. 12 refs., 3 figs.

Research Organization:
Sandia National Labs., Albuquerque, NM (USA)
Sponsoring Organization:
DOE/DP
DOE Contract Number:
AC04-76DP00789
OSTI ID:
5066980
Report Number(s):
SAND-89-1726C; CONF-891119--76; ON: DE90006018
Country of Publication:
United States
Language:
English