Effect of Reactive-Ion Etching on Thermal Oxide Properties on 4H-SiC

Autor: Jesse B. Tucker, Chris S. Cowen, Richard Alfred Beaupre, Kevin Matocha
Rok vydání: 2006
Předmět:
Zdroj: Materials Science Forum. :983-986
ISSN: 1662-9752
DOI: 10.4028/www.scientific.net/msf.527-529.983
Popis: 4H-SiC MOS capacitors were used to characterize the effect of reactive-ion etching of the SiC surface on the electrical properties of N2O-grown thermal oxides. The oxide breakdown field reduces from 9.5 MV/cm with wet etching to saturate at 9.0 MV/cm with 30% reactive-ion over-etching. Additionally, the conduction-band offset barrier height, φB, progressively decreases from 2.51 eV with wet etching to 2.46 eV with 45% reactive-ion over-etching.
Databáze: OpenAIRE