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Journal of Display Technology

Journal of Display Technology


  • Vol. 2, Iss. 3 — Sep. 1, 2006
  • pp: 300–306

Proposal of Field-Emission Device Surrounded by High-k Dielectric and Performance Prospects

Yasuhisa Omura and Kensuke Murashima

Journal of Display Technology, Vol. 2, Issue 3, pp. 300-306 (2006)

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We propose a field-emission device surrounded by high-k dielectric (FESH) that used a Spindt-type emitter; its design guidelines are demonstrated using various device parameters. The most significant aspect of the FESH structure is its use of high-k dielectric material to surround the emitter. The large dielectric constant of the high-k dielectric dramatically reduces the threshold voltage when applying dc voltage. It is shown that the most suitable device parameters can be extracted from the viewpoint of figure-of-merit. When dc voltage is applied to a FESH device, a large transient current flows between the anode and the cathode. The application of an ac voltage eliminates the current leakage that would otherwise hinder the development of practical applications such as displays. It is demonstrated from dynamic simulations that sinusoidal input pulses should be applied to FESH devices rather than rectangular input pulses since the former realizes the benefits of low-power operation and high reliability.

© 2006 IEEE

Yasuhisa Omura and Kensuke Murashima, "Proposal of Field-Emission Device Surrounded by High-k Dielectric and Performance Prospects," J. Display Technol. 2, 300-306 (2006)

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