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Researchers from Chung Ang University Detail Findings in Clinical Trials and Studies (Comparative Study of ZrO2 and HfO2 as a High-k Dielectric for...

July 28, 2014



Researchers from Chung Ang University Detail Findings in Clinical Trials and Studies (Comparative Study of ZrO2 and HfO2 as a High-k Dielectric for Amorphous InGaZnO Thin Film Transistors)

By a News Reporter-Staff News Editor at Clinical Trials Week -- Researchers detail new data in Clinical Research. According to news reporting originating from Seoul, South Korea, by NewsRx correspondents, research stated, "A comparative study is made between ZrO2 and HfO2 as a gate dielectric in amorphous indium-gallium-zinc-oxide (a-IGZO) thin-film transistors (TFTs)."

Our news editors obtained a quote from the research from Chung Ang University, "The degradation of transfer curves are observed in both dielectric devices, but much less degradation is observed in the ZrO2 dielectric one. Higher subgap density of states are extracted in HfO2 dielectric devices, which is consistent with the severe degradation of the electrical characteristics of the HfO2 device."

According to the news editors, the research concluded: "We also observe the higher low-frequency noise in HfO2 dielectric devices compared to the ZrO2 and SiO2 dielectric ones, which is attributed to the enhanced remote phonon scattering from the HfO2 dielectric."

For more information on this research see: Comparative Study of ZrO2 and HfO2 as a High-k Dielectric for Amorphous InGaZnO Thin Film Transistors. Journal of Nanoelectronics and Optoelectronics, 2014;9(1):67-70. Journal of Nanoelectronics and Optoelectronics can be contacted at: Amer Scientific Publishers, 26650 The Old Rd, Ste 208, Valencia, CA 91381-0751, USA. (American Scientific Publishers - www.aspbs.com/)

The news editors report that additional information may be obtained by contacting J.C. Park, Chung Ang University, Sch Elect & Elect Engn, Seoul 156756, South Korea. Additional authors for this research include I.T. Cho, E.S. Cho, D.H. Kim, C.Y. Jeong and H.I. Kwon (see also Clinical Research).

Keywords for this news article include: Seoul, South Korea, Asia, Clinical Research, Clinical Trials and Studies

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Clinical Trials Week


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