Piezoelectric PTZT film, and process for producing liquid composition for forming said piezoelectric film

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United States of America Patent

PATENT NO 10797219
APP PUB NO 20180033950A1
SERIAL NO

15549797

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Abstract

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A piezoelectric PTZT film is formed of a metal oxide having a perovskite structure including Pb, Ta, Zr, and Ti, in which the metal oxide further includes carbon, and a content of the carbon is 80 to 800 ppm by mass. In a process for producing a liquid composition for forming a piezoelectric film, a Ta alkoxide, a Zr alkoxide, β-diketones, and a diol are refluxed, a Ti alkoxide is added into a first synthesis solution obtained by the refluxing, and then refluxing is performed again, a Pb compound is added into a second synthesis solution obtained by performing the additional refluxing, and then refluxing is performed again, a solvent is removed from a third synthesis solution obtained by performing the additional refluxing, and then, dilution with alcohol is performed, to produce the liquid composition for forming a piezoelectric PTZT film.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI MATERIALS CORPORATIONTOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Doi, Toshihiro Naka-gun, JP 45 57
Soyama, Nobuyuki Matsudo, JP 73 295

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