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Lookup NU author(s): Dr Sarah Olsen,
Professor Anthony O'Neill
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© 2003 IOP Publishing Ltd. A series of SiGe/Si virtual substrate based n-channel Si MOSFETs have been analysed using transmission electron microscopy (TEM). The focal point of this work is to investigate the effect of gate oxidation upon an undulating virtual substrate surface. We find that cross-sectional TEM images of devices processed on such a wafer show a significant difference in the amplitude of gate-oxide interface roughness at the sloping edges of substrate surface. Moreover, such nanoscale roughening correlates to the variable vicinal nature of the undulating SiGe substrate surface. Methods for quantitative measurement of the roughness are presented.
Author(s): Norris DJ, Cullis AG, Olsen SH, O'Neill AG, Zhang J
Publication type: Book Chapter
Publication status: Published
Book Title: Microscopy of Semiconducting Materials 2003
Print publication date: 01/01/2003
Online publication date: 10/01/2018
Acceptance date: 01/01/1900
Publisher: CRC Press
Place Published: Boca Raton, FL, USA
Library holdings: Search Newcastle University Library for this item