Effect of the Second Heat Treatment Condition on the Dielectric Properties of SrTiO3GBL Capacitor

SrTiO3GBL Capacitor의 유전성에 대한 2차 열처리 조건의 효과

  • 윤기현 (연세대학교 요업공학과) ;
  • 안일석 (연세대학교 요업공학과) ;
  • 이남양 (한국과학기술원 계측소자실) ;
  • 오명환 (한국과학기술원 계측소자실)
  • Published : 1989.03.01

Abstract

The dielectric properties of SrTiO3 GBL Capacitor have been investigaetd as a function of the second heat treatment time and the amount of Ta. The grain size of semiconductive SrTiO3 after sintering at 1,46$0^{\circ}C$ for 4 hours in N2/H2 atmosphere increased as the amount of Ta increased, and then decreased as the amount of Ta exceed 0.01 mole. Also, the dielectric constant after the second heat treatment showed the same tendency. When the semiconductive SrTiO2 was second heat treated at 1,10$0^{\circ}C$ in air with varying time, the dielectric constant increased as the second heat treatment time increased up to 60 minutes, and then decreased as the time became longer than 60 minutes.

Keywords

References

  1. Rev.Elect.Commun.Lab. v.19 no.5-6 Classification and Dielectric Properties of the Boundary Layer Ceramic Dielectrics S.Waku;A.Nishimura;T.Murakami;A.Yamaji;T.Edahiro;M.Uchidate
  2. ibid v.18 no.9-10 Studies on the (Ba,Sr)TiO₃Boundary Layer Ceramic Dielectrics S.Waku,;M.Uchidate,;K.Kiuchi
  3. ibid v.20 no.7-8 Studies on the SrTiO₃Boundary Layer Dielectrics A.Yamji,;S.Waku
  4. ibid v.15 no.9-10 Studies on the Boundary Layer Ceramic Dielectrics S.Waku
  5. U.S Patent 3.473.958 S.Waku
  6. Advances in Ceramics v.1 Formation of Second Phase Layers in SrTiO₃Boundary Layer Capacitors R.Wernicke,;L.M.Levinson(ed.);D.C.Hill(ed.)
  7. ibid Two-Layer Model Explaining the Properties of SrTiO₃ Boundary Layer Capactiors R.Wernicke
  8. J.Am.Ceram.Soc. v.64 no.12 Microstructure of SrTiO₃Boundary Layer Capacitor Material P.E.C.Franken,;M.P.A.Viegers,;A.P.Gehring
  9. J.Am.Ceram.Soc. v.68 no.4 Microstructures of SrTiO₃Internal Boundary Layer Capacitors During and After Processing and Resultant Electrical Properties M.Fujimoto,;W.D.Kingery
  10. J.Am.Ceram.Soc. v.67 no.5 Variability of the Sr/Ti Ratio in SrTiO₃ S.Witek,;D.M.Smith,;H.Pickup
  11. J.Mat. Sci v.20 Ti$_n$O$_{2n-1}$Magneli Phase Formation in SrTiO₃Dielectrics M.Fujimoto,;M.Watanabe
  12. Advances in Ceramics v.7 Electron Microscopy Studies of a Strontium Titanate Based Boundary Layer Material N.Stenton,;M.P.Harmer,;M.F.Yan(ed.);A.H.Heuer(ed.)
  13. Advances in Ceramics v.1 Characterization of Internal Boundary Layer Capacitors H.D.Park,;D.A.Payne,;L.M.Levinson(ed.);D.C.Hill(ed.)
  14. Science of Ceramics v.12 TEM Work on the Grain Boundaries M.P.A.Viegers,;P.Vincenzini(ed.)
  15. Advances in Ceramics v.1 Properties of SrTiO₃-Based Boundary Layer Capacitors N.Yamaoka;T.Matsui;L.M.Levinson(ed.);D.C.Hill(ed.)
  16. Am.Ceram.Soc.Bull. v.62 no.6 SrTiO₃-Boundary Layer Capacitor Having Varistor Characteristics N.Yamaoka,;M.Masuyama,;M.Fukui
  17. Advance in Ceramics v.1 SrTiO₃Boundary Layer Capacitor:Influence of Additives and Stoichiometry J.Klerk,;P.J.H.Sanders,;L.M.Levinson(ed.);D.C.Hill(ed.)
  18. J. Phys. Chem. Solids v.11 Dielectric Properties of Single Crystals of SrTiO₃at Low Temperatures H.E.Weaver
  19. Phys. Rev. v.157 no.2 Temperature Dependent Polarizabilities in Paraelectric BaTiO₃ and SrTiO₃ W.N.Lawless;H.Granicher
  20. J.Mat.Sci. v.17 Dielectric Properties of Donor-Doped Polycrystalline SrTiO₃ I.Burn;S.Neirman
  21. Am.Ceram.Soc. Phase Diagrams for Ceramists E.M. Levin,;C.R. Robbins,;H.F.Murdie
  22. J.Am.Ceram.Soc. v.64 no.4 Solubility of Lanthanum in Strontium Titanate U.Balachandran;N.G.Eror.Eror
  23. J. Electrochem. Soc. v.128 no.6 Nonstoichiometry in SrTiO₃ N.H.Chan,;R.K.Scharma,;O.M.Smyth