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Title:
FILM STRUCTURE AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2019/093471
Kind Code:
A1
Abstract:
This film structure comprises: a substrate (11) which is a silicon substrate having an upper surface (11a) that is the (100) plane; an alignment film (12) which is formed on the upper surface (11a) and has a cubic crystal structure, while containing a zirconium oxide film oriented in the (100) direction; and a conductive film (13) which is formed on the alignment film (12) and has a cubic crystal structure, while containing a platinum film oriented in the (100) direction. The average interface roughness of an interface (IF1) between the alignment film (12) and the conductive film (13) is higher than the average interface roughness of an interface (IF2) between the substrate (11) and the alignment film (12).

Inventors:
KIJIMA TAKESHI (JP)
HAMADA YASUAKI (JP)
Application Number:
PCT/JP2018/041647
Publication Date:
May 16, 2019
Filing Date:
November 09, 2018
Export Citation:
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Assignee:
ADVANCED MATERIAL TECH INC (JP)
International Classes:
H01L41/319; C01G25/00; C23C14/08; C23C14/34; C23C14/35; H01L41/187; H01L41/316
Domestic Patent References:
WO2016009698A12016-01-21
Foreign References:
JP2002164586A2002-06-07
JP2008098381A2008-04-24
JP2007036612A2007-02-08
JP2015128089A2015-07-09
JP2014084494A2014-05-12
Other References:
S. YOSHIDA ET AL.: "Fabrication and characterization of large figure-of-merit epitaxial PMnN-PZT/Si transducer for piezoelectric MEMS sensors", SENSORS AND ACTUATORS A, vol. 239, 2016, pages 201 - 208, XP029415343, DOI: 10.1016/j.sna.2016.01.031
M. KOBUNE ET AL.: "Growth and characterization of lead titanate single crystals grown in a magnesia single crystal crucible", YOGYO-KYOKAI-SHI, vol. 95, no. 11, 1987, pages 1053 - 1058
Attorney, Agent or Firm:
HIGUCHI, Takamitsu (JP)
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