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Growth of aluminum nitride thin films on Si(111) and Si(001): Structural characteristics and development of intrinsic stresses

Journal Article · · Journal of Applied Physics; (United States)
DOI:https://doi.org/10.1063/1.356105· OSTI ID:5158012
; ;  [1]; ;  [2]
  1. Physics Department, General Motors Research and Development Center, Warren, Michigan 48090 (United States)
  2. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
We have grown aluminum nitride thin films by ultrahigh vacuum reactive sputter deposition on Si(111) and Si(001) substrates. We show results of film characterization by Raman scattering, ion beam channeling, and transmission electron microscopy, which establish the occurrence of epitaxial growth of wurtzitic aluminum nitride thin films on Si(111) at temperatures above 600 [degree]C. In contrast, microstructural characterization by transmission electron microscopy shows the formation of highly oriented polycrystalline wurtzitic aluminum nitride thin films on Si(001). Real-time substrate curvature measurements reveal the existence of large intrinsic stresses in aluminum nitride thin films grown on both Si(111) and Si(001) substrates.
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
5158012
Journal Information:
Journal of Applied Physics; (United States), Journal Name: Journal of Applied Physics; (United States) Vol. 75:7; ISSN JAPIAU; ISSN 0021-8979
Country of Publication:
United States
Language:
English