Computer Simulation of Polarization vs. Electric-Field Curves of Non-Linear Dielectrics and Macromodel for SPICE simulator

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著者

    • Kubota Youichi
    • Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
    • Kakemoto Hirofumi
    • Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
    • Wada Satoshi
    • Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan

抄録

Nonlinear dielectrics such as ferroelectrics, relaxors and frequency-tunable capacitors are desired to be handled in circuit simulators such as the SPICE. We have developed a software package to simulate a wide variety of nonlinear dielectrics in the SPICE. In the simulation of the polarization vs. electric field curve ($P$–$E$ curve), the program code "$P$–$E$ simulator" divided the $P$–$E$ curve into two parts, a nonlinear dielectric part and a domain-switching part. In the former, the polarization was calculated as a linear expansion in terms of electric field, while in the latter, the polarization due to domain switching was calculated by assuming that the distribution of domain-switching probability was represented by Gaussian distribution functions. Two Gaussian distribution functions were required to accurately simulate the $P$–$E$ curves of ferroelectric materials with the 180-degree and the non-180-degree domains. A circuit model with two capacitors and an arbitrary voltage source was proposed for a macromodel of nonlinear dielectrics in the SPICE. The netlist data to the SPICE were automatically generated using the program code "Mk-netlist" from the parameters determined using the $P$–$E$ simulator. The $P$–$E$ curves of a PZT thin film and multilayered ceramics capacitors were successfully simulated in the SPICE without the trial-and-error process.

収録刊行物

  • Japanese journal of applied physics. Pt. 1, Regular papers & short notes

    Japanese journal of applied physics. Pt. 1, Regular papers & short notes 42(11), 6983-6987, 2003-11-15

    公益社団法人 応用物理学会

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各種コード

  • NII論文ID(NAID)
    10012564413
  • NII書誌ID(NCID)
    AA10457675
  • 本文言語コード
    EN
  • 資料種別
    ART
  • 雑誌種別
    大学紀要
  • ISSN
    0021-4922
  • NDL 記事登録ID
    6752784
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z53-A375
  • データ提供元
    CJP書誌  NDL  J-STAGE  JSAP 
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