共 1 条
PZT THIN-FILM PREPARATION ON PT-TI ELECTRODE BY RF-SPUTTERING
被引:76
作者:
ABE, K
TOMITA, H
TOYODA, H
IMAI, M
YOKOTE, Y
机构:
[1] Metals and Ceramics Laboratory, Toshiba R & D Center, Toshiba Corporation, Saiwai-ku Kawasaki, 210, Komukai-Toshiba-cho
来源:
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS
|
1991年
/
30卷
/
9B期
关键词:
PZT;
FERROELECTRIC THIN FILM;
PT-TI ALLOY;
LOWER ELECTRODE FILM;
D O I:
10.1143/JJAP.30.2152
中图分类号:
O59 [应用物理学];
学科分类号:
摘要:
Pt-Ti alloy film were studied for use as a lower electrode of the ferroelectric lead zirconate titanate (PZT) thin film capacitor. Pt-Ti alloy films with different Ti/Pt atomic ratios were first prepared by rf sputtering. Subsequently, PZT thin films were deposited also by rf magnetron sputtering on the Pt-Ti alloy metals. The Ti/Pt ratio in the alloy was found to strongly affect the crystal structure formation and the composition of the PZT thin films. The Ti/Pt ratio range from 0.02 to 0.17 was shown to bring about a preferable perovskite-type structure and a reproducible constant composition. The effect of Ti atoms in the Pt-Ti lower electrode was discussed in connection with the Pb atom evaporation rate.
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页码:2152 / 2154
页数:3
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