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Microscopic correspondence between Schottky-barrier height and interface morphology at thermally degraded Al/(111)Si contacts

Conference ·
OSTI ID:405551
;  [1]; ;  [2]
  1. Tokyo Metropolitan Univ., Hachiohji, Tokyo (Japan)
  2. Microelectronics Research Labs., Tsukuba, Ibaraki (Japan)

We have measured microscopic distribution of Schottky barrier heights (SBHs) at epitaxial-Al/n-Si(111) interfaces by using scanning internal-photoemission microscopy. The SBH distribution at the interface was homogeneous in the as-deposited state. After annealing, the inhomogeneity of SBH arose and it caused the discrepancy between two SBHs determined by I-V and C-V methods. The thickness distribution of recrystallized p{sup +}-Si layer, formed during annealing process, was responsible for the distribution of SBH.

OSTI ID:
405551
Report Number(s):
CONF-951231--
Country of Publication:
United States
Language:
English