期刊
APPLIED PHYSICS LETTERS
卷 106, 期 21, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4921352
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资金
- Recherche Technologique de Base (RTB)
- APTITUDE of the French National Research Agency [ANR-12-NANO-0001]
- Agence Nationale de la Recherche (ANR) [ANR-12-NANO-0001] Funding Source: Agence Nationale de la Recherche (ANR)
The analysis of a same sample using nanometre or atomic-scale techniques is fundamental to fully understand device properties. This is especially true for the dopant distribution within last generation nano-transistors such as MOSFET or FINFETs. In this work, the spatial distribution of boron in a nano-transistor at the atomic scale has been investigated using a correlative approach combining electron and atom probe tomography. The distortions present in the reconstructed volume using atom probe tomography have been discussed by simulations of surface atoms using a cylindrical symmetry taking into account the evaporation fields. Electron tomography combined with correction of atomic density was used so that to correct image distortions observed in atom probe tomography reconstructions. These corrected atom probe tomography reconstructions then enable a detailed boron doping analysis of the device. (C) 2015 AIP Publishing LLC.
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