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Compact model extraction issues of nonstandard CMOS compatible vertical MOSFETs

Record type: Conference or Workshop Item (Other)

Compact models for Vertical MOSFETs (VMOSFETs) with channel lengths from 220nm down to 70nm with frame gate and reduced overlap parasitic capacitances were extracted for both EKV3 and BSIM4. Challenging issues emerged from the extraction process due to the device non-idealities such as those related to channel length estimation, absence of “Through” in the de-embedding structure, non availability of a real “Long” device, high level of interface states with a discrete energy level, asymmetrical gate oxide leakage and parasitic inductance on contact metal strips. The BSIM4 approach proved to be the better, for DC and CV modelling, presumably because of the larger set of fitting parameters for modelling short channel effects, body bias, sub-threshold slopes, bias dependent resistances, gate current and overlap capacitances. The cut-off frequency fT data was successfully fitted with the additional layout parasitics simulated. We suggest that the description of methodology and opinions provided here, should prove useful in the modelling of non-standard devices such as those considered for ‘beyond CMOS’ application.

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Citation

Tan, L., Hakim, M.M.A., Connor, S., Bousquet, A., de Groot, C.H., Redman-White, W, Hall, S. and Ashburn, P. (2010) Compact model extraction issues of nonstandard CMOS compatible vertical MOSFETs At 10th International Conference on ULtimate Integration of Silicon (ULIS), United Kingdom. 17 - 19 Mar 2010.

More information

Published date: 17 March 2010
Venue - Dates: 10th International Conference on ULtimate Integration of Silicon (ULIS), United Kingdom, 2010-03-17 - 2010-03-19
Organisations: Nanoelectronics and Nanotechnology

Identifiers

Local EPrints ID: 271590
URI: http://eprints.soton.ac.uk/id/eprint/271590
PURE UUID: 80735457-3837-4112-9f98-e16eabec4485
ORCID for C.H. de Groot: ORCID iD orcid.org/0000-0002-3850-7101

Catalogue record

Date deposited: 24 Sep 2010 13:11
Last modified: 18 Jul 2017 06:40

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Contributors

Author: L. Tan
Author: M.M.A. Hakim
Author: S. Connor
Author: A. Bousquet
Author: C.H. de Groot ORCID iD
Author: W Redman-White
Author: S. Hall
Author: P. Ashburn

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