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Reduced 1/f noise in p-Si0.3Ge0.7 metamorphic metal–oxide–semiconductor field-effect transistor
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Myranov, Maksym, Mironov, O. A., Durov, Sergiy, Whall, Terry E., Parker, Evan H. C., Hackbarth, T., Höck, G., Herzog, H.-J. and König, U. (2004) Reduced 1/f noise in p-Si0.3Ge0.7 metamorphic metal–oxide–semiconductor field-effect transistor. Applied Physics Letters, Vol.84 (No.4). pp. 610-612. doi:10.1063/1.1643532 ISSN 0003-6951.
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Official URL: http://dx.doi.org/10.1063/1.1643532
Abstract
We have demonstrated reduced 1/f low-frequency noise in sub-µm metamorphic high Ge content p-Si0.3Ge0.7 metal–oxide–semiconductor field-effect transistors (MOSFETs) at 293 K. Three times lower normalized power spectral density (NPSD) SID/I<sub>D</sub><sup>2</sup> of drain current fluctuations over the 1–100 Hz range at VDS = –50 mV and VG–Vth = –1.5 V was measured for a 0.55 µm effective gate length p-Si0.3Ge0.7 MOSFET compared with a p-Si MOSFET. Performed quantitative analysis clearly demonstrates the importance of carrier number fluctuations and correlated mobility fluctuations (CMFs) components of 1/f noise for p-Si surface channel MOSFETs, and the absence of CMFs for p-Si0.3Ge0.7 buried channel MOSFETs. This explains the reduced NPSD for p-Si0.3Ge0.7 MOSFETs in strong inversion.
Item Type: | Journal Article | ||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering Q Science > QC Physics |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Library of Congress Subject Headings (LCSH): | Germanium alloys, Silicon alloys, Metal oxide semiconductor field-effect transistors, Semiconductors | ||||
Journal or Publication Title: | Applied Physics Letters | ||||
Publisher: | American Institute of Physics | ||||
ISSN: | 0003-6951 | ||||
Official Date: | 26 January 2004 | ||||
Dates: |
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Volume: | Vol.84 | ||||
Number: | No.4 | ||||
Page Range: | pp. 610-612 | ||||
DOI: | 10.1063/1.1643532 | ||||
Status: | Peer Reviewed | ||||
Access rights to Published version: | Open Access (Creative Commons) |
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