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Microscopic four-point-probe resistivity measurements of shallow, high density doping layers in silicon

Polley, Craig M. ; Clarke, Warrick R. ; Miwa, Jill A. ; Simmons, Michelle Y. and Wells, Justin LU (2012) In Applied Physics Letters 101(26).
Abstract
We present room temperature resistivity measurements of shallow, monolayer doped phosphorus in silicon, a material system of interest for both conventional microelectronic manufacturing, and future quantum electronic devices. Using an in-situ variable spacing microscopic four-probe system, we demonstrate the ability to separate the conductivity of the substrate and the doping layer. We show that the obtained sensitivity to the dopant layer derives from a combination of the nanoscale contacting areas and the conductivity difference between the highly doped 2D layer and the substrate. At an encapsulation depth of only 4 nm, we demonstrate a room temperature resistivity of 1.4k Omega/square. (C) 2012 American Institute of Physics.... (More)
We present room temperature resistivity measurements of shallow, monolayer doped phosphorus in silicon, a material system of interest for both conventional microelectronic manufacturing, and future quantum electronic devices. Using an in-situ variable spacing microscopic four-probe system, we demonstrate the ability to separate the conductivity of the substrate and the doping layer. We show that the obtained sensitivity to the dopant layer derives from a combination of the nanoscale contacting areas and the conductivity difference between the highly doped 2D layer and the substrate. At an encapsulation depth of only 4 nm, we demonstrate a room temperature resistivity of 1.4k Omega/square. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4773485] (Less)
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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Physics Letters
volume
101
issue
26
article number
262105
publisher
American Institute of Physics (AIP)
external identifiers
  • wos:000312830700033
  • scopus:84871758072
ISSN
0003-6951
DOI
10.1063/1.4773485
language
English
LU publication?
yes
id
4134c01f-2888-487d-b0ef-990d03b43f88 (old id 3507059)
date added to LUP
2016-04-01 10:04:48
date last changed
2022-03-12 01:54:20
@article{4134c01f-2888-487d-b0ef-990d03b43f88,
  abstract     = {{We present room temperature resistivity measurements of shallow, monolayer doped phosphorus in silicon, a material system of interest for both conventional microelectronic manufacturing, and future quantum electronic devices. Using an in-situ variable spacing microscopic four-probe system, we demonstrate the ability to separate the conductivity of the substrate and the doping layer. We show that the obtained sensitivity to the dopant layer derives from a combination of the nanoscale contacting areas and the conductivity difference between the highly doped 2D layer and the substrate. At an encapsulation depth of only 4 nm, we demonstrate a room temperature resistivity of 1.4k Omega/square. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4773485]}},
  author       = {{Polley, Craig M. and Clarke, Warrick R. and Miwa, Jill A. and Simmons, Michelle Y. and Wells, Justin}},
  issn         = {{0003-6951}},
  language     = {{eng}},
  number       = {{26}},
  publisher    = {{American Institute of Physics (AIP)}},
  series       = {{Applied Physics Letters}},
  title        = {{Microscopic four-point-probe resistivity measurements of shallow, high density doping layers in silicon}},
  url          = {{http://dx.doi.org/10.1063/1.4773485}},
  doi          = {{10.1063/1.4773485}},
  volume       = {{101}},
  year         = {{2012}},
}