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Wyszukujesz frazę "Känel von, H." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
DC and low-frequency noise analysis for buried SiGe channel metamorphic PMOSFETs with high Ge content
Autorzy:
Durov, S.
Mironov, O. A.
Myronov, M.
Whall, T. E.
Parker, E. H. C.
Hackbarth, T.
Hoeck, G.
Herzog, H. J.
König, U.
Känel von, H.
Powiązania:
https://bibliotekanauki.pl/articles/958103.pdf
Data publikacji:
2005
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
SiGe
metamorphic MOSFET
LF-noise
I-V
C-V
effective hole mobility
Opis:
Measurements of current drive in p-Si1-xGex MOSFETs, with x = 0.7, 0.8 reveal an enhancement ratio of over 2 times as compared to a Si device at an effective channel length of 0.55 žm. They also show a lower knee voltage in the output I-V characteristics while retaining similar values of drain induced barrier lowering, subthreshold swing, and off current for devices with a Sb punch-through stopper. For the first time, we have quantitatively explained the low-frequency noise reduction in metamorphic, high Ge content, SiGe PMOSFETs compared to Si PMOSFETs.
Źródło:
Journal of Telecommunications and Information Technology; 2005, 1; 101-111
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Raman Spectroscopy for the Analysis οf Temperature-Dependent Plastic Relaxation οf SiGe Layers
Autorzy:
Pezzoli, F.
Bonera, E.
Bollani, M.
Sanguinetti, S.
Grilli, E.
Guzzi, M.
Isella, G.
Chrastina, D.
von Känel, H.
Powiązania:
https://bibliotekanauki.pl/articles/1807828.pdf
Data publikacji:
2009-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.72.Lk
61.72.uf
62.20.mj
62.20.mm
78.30.-j
Opis:
Novel architectures for electronics and photonics are expected to be developed using the forthcoming $Si_{1-x}Ge_{x}$ technology. However, in $Si_{1-x}Ge_{x}$-based heterostructures, materials and design issues rely on accurate control of strain and composition of the alloy. The Raman spectroscopy has rapidly emerged as a reliable technique for the quantitative determination of such parameters on a sub-micrometric scale. In this work we present an investigation of the effects of the growth conditions of $Si_{1-x}Ge_{x}$ graded layers on dislocation nucleation and interaction. In particular, we focus on the crucial role the deposition temperature plays in the dislocation kinetics. The analysis of threading dislocation densities is accompanied by a quantitative measurement of the residual strain in $Si_{1-x}Ge_{x}$/Si heterostructures, carried out by means of the Raman scattering. Our approach is effective in studying the physical mechanism governing dislocation multiplication and the sharp transition from a state of brittleness to a state of ductility within a narrow temperature window.
Źródło:
Acta Physica Polonica A; 2009, 116, 1; 78-80
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Structural Characterization of GaAs MBE Grown on Si Pillars
Autorzy:
Frigeri, C.
Bietti, S.
Scaccabarozzi, A.
Bergamaschini, R.
Falub, C.
Grillo, V.
Bollani, M.
Bonera, E.
Niedermann, P.
von Känel, H.
Sanguinetti, S.
Miglio, L.
Powiązania:
https://bibliotekanauki.pl/articles/1361238.pdf
Data publikacji:
2014-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.Ea
81.16.Rf
61.72.Ff
61.72.Lk
61.72.Nn
68.37.Lp
Opis:
Growth on deeply patterned substrates, i.e. on pillars instead of a continuous substrate, is expected to be very promising to get crack free epilayers on wafers without any bowing. We report here on a structural investigation of GaAs MBE deposited on patterned (001) offcut Si, consisting of pillars 8 μm high and 5 to 9 μm wide, to check mostly the behaviour of the threading dislocations. It is found that only very rarely they propagate up to the GaAs top that will serve as active region in devices. Twins were also detected which sometimes reached the topmost part of GaAs. However, as twins have no associated dangling bonds, they should not be electrically active. Rare antiphase boundaries exist at the interface, hence not harmful for device operation.
Źródło:
Acta Physica Polonica A; 2014, 125, 4; 986-990
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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