Electrical properties of the PLZT thin film capacitors by the sol-gel method

Sol-gel법을 이용한 PLZT박막 커패시터의 전기적 특성

  • 박준열 (LG 반도체 ulsi 연구소) ;
  • 정장호 (광운대학교 전자재료 공학과) ;
  • 이성갑 (서남대학교 전자공학과) ;
  • 이영희 (광운대학교 전자재료 공학과)
  • Published : 1996.08.01

Abstract

In this paper, (P $b_{1-x}$ L $a_{x}$)(Z $r_{0.52}$ $Ti_{0.48}$) $O_{3}$ (X=0-13[at%]) thin film were prepared by the Sol-Gel method, Multiple PLZT thin films were spin-coated on the Pt/Ti/ $SiO_{2}$Si substrate. The electrical properties of the films were investigated for varying the annealing temperature. In the PLZT(11/52/48) specimens, the dielectric ocnstant of 1236 and the polarization reversal time of 460[nm] were obtained and the breakdown of the film did not occur up to 1*10$^{10}$ cycles at the voltage of 7[V] by the bipolar acceleration. The remanent polarization and coercive field decreased with increasing the content of La in the range of 0-13[at%] and thin film of the PLZT(11/52/48) showed the value of 2.56[.mu.C/c $m^{2}$] and 21.1[kV/cm], respectively.ly.y.

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