JOURNAL ARTICLE

Time dependent dielectric breakdown (TDDB) characteristics of metal-oxide-semiconductor capacitors with HfLaO and HfZrLaO ultra-thin gate dielectrics

Abstract

Metal-oxide-semiconductor (MOS) capacitors with atomic-layer-deposition (ALD) HfLaO or HfZrLaO high-κ gate dielectrics have been fabricated, and the reliability of time-dependent-dielectric-breakdown (TDDB) characteristics have also been analyzed. HfZrLaO shows a better performance in comparison with HfLaO. Moreover, some important parameters for HfZrLaO and HfLaO gate dielectrics are compared in this study.

Keywords:
Time-dependent gate oxide breakdown Capacitor Materials science Dielectric Dielectric strength Gate dielectric Optoelectronics Gate oxide Atomic layer deposition High-κ dielectric Film capacitor Oxide Semiconductor Layer (electronics) Electronic engineering Electrical engineering Composite material Voltage Transistor Metallurgy Engineering

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Topics

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