Spalling Technology of PZT Thin Film Capacitor using Internal Stress

2014 ◽  
Vol 134 (4) ◽  
pp. 85-89
Author(s):  
Kazutaka Sueshige ◽  
Fumiaki Honda ◽  
Tadatomo Suga ◽  
Masaaki Ichiki ◽  
Toshihiro Itoh
2009 ◽  
Author(s):  
R. A. Bakar ◽  
S. Sulaiman ◽  
N. F. M. Lazim ◽  
Z. Awang ◽  
Mohamad Rusop ◽  
...  

2021 ◽  
Vol 141 (2) ◽  
pp. 39-43
Author(s):  
Kazutaka Sueshige ◽  
Masahisa Fujino ◽  
Tadatomo Suga ◽  
Masaaki Ichiki

Author(s):  
Suhana Sulaiman ◽  
Nor Fazlina Mohd Lazim ◽  
Raudah Abu Bakar ◽  
Zaiki Awang ◽  
Asban Dollah

1996 ◽  
Vol 433 ◽  
Author(s):  
K.B. Lee ◽  
B.R. Rhee ◽  
S.K. Cho

AbstractWe have studied the optimum conditions of the deposition of NiCr-bottom electrode for preparing the ferroelectric PZT(50/50) thin film capacitor. The NiCr(80/20) layer of about 300nm in thickness was deposited on bare Si(111) wafer by rf magnetron sputtering. The surface morphology and crystallinity were investigated by using Atomic force microscope (AFM) and X-ray diffractormeter (XRD). It is found that the size and crystallinity of grains of NiCr or Ni-silicide depend mainly on the rf power. The PZT(50/50) thin films were prepared on NiCr/Si substates by spin-casting of PZT coating sol and then annealing at 520°C in air for crystallization. The undesirable Pb-silicate is found to be grown during post-annealing in case that substrates having NiCr layer deposited by high power above 80 W are used. We suggest that the formation of Pb-silicate is due to the thermal diffusion of Pb or PbO through crystalline NiCr-grain boundaries. The ferroelectric PZT thin films having the perovskite structure can be obtained by using the NiCr-bottom electrodes whose morphologies are in the amorphous-crystalline boundaries, in which the surface roughness and grain size of NiCr layer is minimum. The values of the dielectric constant, εn, were measured in the range 300˜500, the remanent polarization, Pr, in the range 10˜13 C/cm2 and the coercive field, Ec, around 160 kV/cm, depending on the deposition conditions of NiCr layers.


1998 ◽  
Vol 541 ◽  
Author(s):  
S. Kobayashi ◽  
K. Amanuma ◽  
H. Hada

AbstractFerroelectric properties of a Pb(Zr,Ti)O3 (PZT) thin film capacitor with a conventional Al/TiN/Ti interconnect are seriously degraded by annealing at around 400°C. The degradation of the PZT capacitor is reduced as the interconnects are narrowed while the total area of the interconnects on the capacitor is fixed. This result cannot be understood by supposing that Ti diffusion into PZT degrades the ferroelectric properties. A possible cause for the degradation is stress placed on the PZT film during the 400°C annealing.


Author(s):  
William B. Kuhn ◽  
Andrew D. Fund ◽  
J. Ambrose Wolf ◽  
Robert W. Schwartz ◽  
James Claypool ◽  
...  

2015 ◽  
Vol 44 (6) ◽  
pp. 425-429 ◽  
Author(s):  
Kh. Sokhrabi Anaraki ◽  
N. V. Gaponenko ◽  
M. V. Rudenko ◽  
V. V. Kolos ◽  
A. N. Petlitskii ◽  
...  

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