Title:

Low frequency noise in Si and Si/SiGe/Si PMOSFETs, Journal of Telecommunications and Information Technology, 2007, nr 2

Creator:

Grasby, Tim J. ; Bacon, Adam R. ; Parker, Evan H. C. ; Fulgoni, Dominic J. F. ; Leadley, David R. ; Thomas, Stephen M. ; Whall, Terence E. ; Prest, Martin J.

Subject and Keywords:

MOSFET ; dynamic threshold mode ; silicon germanium heterostructures ; electronic noise

Description:

Measurements of 1/f noise in Si and Si0.64Ge0.36 PMOSFETs have been compared with theoretical models of carrier tunnelling into the oxide. Reduced noise is observed in the heterostructure device as compared to the Si control. We suggest that this is primarily associated with an energy dependent density of oxide trap states and a displacement of the Fermi level at the SiO2 interface in the heterostructure relative to Si. The present study also emphasizes the important role of transconductance enhancement in the dynamic threshold mode in lowering the input referred voltage noise.

Publisher:

Instytut Łączności - Państwowy Instytut Badawczy, Warszawa

Date:

2007, nr 2

Resource Type:

artykuł

Format:

application/pdf

DOI:

10.26636/jtit.2007.2.810

ISSN:

1509-4553

eISSN:

1899-8852

Source:

Journal of Telecommunications and Information Technology

Language:

ang

Rights Management:

Biblioteka Naukowa Instytutu Łączności