Effect of the Flash Annealing on the Impurity Distribution and the Electronic Structure in the Inversion Layer

We investigated the relationship among the number of flash annealing times to obtain Si clean surface and the change of arsenic dopant concentration and subband levels using secondary ion mass spectroscopy (SIMS) and angle-resolved photoelectron spectroscopy(ARPES). The SIMS result shows that the fi...

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Bibliographic Details
Published in:E-journal of surface science and nanotechnology 2015/03/07, Vol.13, pp.75-78
Main Authors: Sakata, Tomohiro, Takeda, Sakura N., Ayob, Nur Idayu, Daimon, Hiroshi
Format: Article
Language:English
Subjects:
Angle resolved photoemission
Dopant
Dopants
Electronic publishing
Flash annealing
Hole subband
Mathematical analysis
Nanotechnology
Reduction
Secondary ion mass spectrometry
Secondary ion mass spectroscopy
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Summary:We investigated the relationship among the number of flash annealing times to obtain Si clean surface and the change of arsenic dopant concentration and subband levels using secondary ion mass spectroscopy (SIMS) and angle-resolved photoelectron spectroscopy(ARPES). The SIMS result shows that the first five times of the flash annealing already induces significant reduction of the dopant concentration in agreement with the recent work [Pitter et al., J. Vac. Sci. Technol. B 30, 021806 (2012)]. We found the energies of hole subband levels rapidly decrease as the number of the flash annealing times increases. We calculated the subband levels in a broadened confinement potential taking the dopant reduction determined by SIMS into account. The energy separations of the calculated subband levels were in good agreement with the ARPES results. [DOI: 10.1380/ejssnt.2015.75]
ISSN:1348-0391
1348-0391
DOI:10.1380/ejssnt.2015.75