Relationship between x‐ray‐produced holes and interface states in metal‐oxide‐semiconductor capacitors

作者: Genda J. Hu , Walter C. Johnson

DOI: 10.1063/1.332169

关键词: AnnihilationX-rayIrradiationCapacitorMetalOxideElectronBand gapPhysicsAtomic physicsGeneral Physics and Astronomy

摘要: Metal‐silicon dioxide‐silicon capacitors were irradiated with soft x rays to 40 krads (SiO2) different biases (−3 +12 V) at 83 K. The number of interface states generated after samples warmed was found bear a linear relation the flatband voltage shift measured before warm up. A one‐to‐one relationship observed between in central 0.7‐eV portion Si band gap during one year storage room temperature and holes that moved Si–SiO2 Annihilation x‐ray‐generated by photoinjection electrons up prevented generation states. Both experiments support cause‐and‐effect oxide metal‐oxide semiconductor structure.

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