Electrical properties of PZT thin films deposited by electron cyclotron resonance plasma enhanced chemical vapor deposition

被引:7
作者
Kim, ST [1 ]
Kim, JW [1 ]
Jung, SW [1 ]
Shin, JS [1 ]
Ahn, ST [1 ]
Lee, WJ [1 ]
机构
[1] SAMSUNG ELECTR CO,SEMICOND RES & DEV CTR,SUWON,SOUTH KOREA
关键词
PZT thin films; electrical properties; ferroelectric thin films;
D O I
10.1016/0254-0584(96)80094-0
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Ferroelectric Pb(Zr,Ti)O-3 thin films were successfully fabricated on Pt-coated Si substrates by the electron cyclotron resonance plasma enhanced chemical vapor deposition (ECR PECVD) method using metal-organic (MO) sources. Perovskite structures with well-developed crystalline grains are obtained at a substrate temperature of 500 degrees C. These PZT films, with thicknesses of about 1000 Angstrom, show high charge storage densities (P-max-P-r = 10-15 mu C cm(-2) for 1.5 V operation) and low leakage current densities (approximate to 10(-6) A cm(-2) at 1.5 V). The effects of the Zr/Ti concentration ratio in the film and the rapid thermal annealing on the electrical properties of the films were also studied.
引用
收藏
页码:155 / 158
页数:4
相关论文
共 10 条
[1]  
AHN JH, 1992, S VLSI TECHN MAY 28, P12
[2]  
Ema T., 1988, International Electron Devices Meeting. Technical Digest (IEEE Cat. No.88CH2528-8), P592, DOI 10.1109/IEDM.1988.32884
[3]   PREPARATION OF PB(ZR, TI)O3 THIN-FILMS BY MULTITARGET SPUTTERING [J].
HASE, T ;
SAKUMA, T ;
MIYASAKA, Y ;
HIRATA, K ;
HOSOKAWA, N .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1993, 32 (9B) :4061-4064
[4]  
HAYASHI S, 1994, S VLSI TECHN, P153
[5]   PIEZOELECTRIC PROPERTIES OF LEAD ZIRCONATE-LEAD TITANATE SOLID-SOLUTION CERAMICS [J].
JAFFE, B ;
ROTH, RS ;
MARZULLO, S .
JOURNAL OF APPLIED PHYSICS, 1954, 25 (06) :809-810
[6]  
KIM JW, 1994, MATER RES SOC SYMP P, V343, P493, DOI 10.1557/PROC-343-493
[7]  
LEE SC, 1993, THESIS U ARIZONA TUC
[8]   METAL-COMPLEXES FOR PREPARING FERROELECTRIC THIN-FILMS BY METALORGANIC CHEMICAL VAPOR-DEPOSITION [J].
NAKAI, T ;
TABUCHI, T ;
SAWADO, Y ;
KOBAYASHI, I ;
SUGIMORI, Y .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1992, 31 (9B) :2992-2994
[9]  
Sagara K., 1992, S VLSI, P10
[10]  
SHINMURA N, 1990, 22 SOL STAT DEV MAT, P833