DocumentCode
3076953
Title
Process stability control of Pb(Zr,Ti)O3 ferroelectric thin film sputtering for FRAM application
Author
Suu, K. ; Masuda, T. ; Nishioka, Y. ; Tani, N.
Author_Institution
Inst. for Super Mater., ULVAC Japan Ltd., Chiba, Japan
fYear
1998
fDate
1998
Firstpage
19
Lastpage
22
Abstract
Pb(Zr,Ti)O3 (PZT) thin films have been fabricated by RF magnetron sputtering. Aiming at productional process development for ferroelectric RAM application, PZT films have been deposited on 6-inch substrates using a 12-inch ceramic target. High deposition rates up to 100 nm/min have been realized by utilizing a high-density PZT target. Flexible compositional control has been achieved by controlling sputtering conditions. A newly introduced electro-static chuck (ESC) type substrate cooling system has been found effective to improve stability of film composition of PZT sputtering
Keywords
ferroelectric materials; ferroelectric storage; ferroelectric thin films; lead compounds; random-access storage; sputter deposition; FRAM application; PZT; Pb(Zr,Ti)O3 ferroelectric thin film sputtering; PbZrO3TiO3; RF magnetron sputtering; compositional control; electro-static chuck type substrate cooling system; film composition; high deposition rates; high-density PZT target; process stability control; sputtering conditions; stability; Ceramics; Cooling; Ferroelectric films; Nonvolatile memory; Process control; Radio frequency; Random access memory; Sputtering; Stability; Substrates;
fLanguage
English
Publisher
ieee
Conference_Titel
Applications of Ferroelectrics, 1998. ISAF 98. Proceedings of the Eleventh IEEE International Symposium on
Conference_Location
Montreux
ISSN
1099-4734
Print_ISBN
0-7803-4959-8
Type
conf
DOI
10.1109/ISAF.1998.786626
Filename
786626
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