Back to results
US 2023/0416108 A1Published application
Piezoelectric element, piezoelectric film, and manufacturing method for piezoelectric film
AssigneeFUJIFILM Corporation
InventorsSeigo NAKAMURA, Hiroyuki KOBAYASHI
Life of this patent
Estimating the term…
Abstract
The piezoelectric film is a piezoelectric film containing a perovskite-type oxide as a main component, in which a current-voltage profile showing a relationship between a voltage and a current that flows in a case where the voltage is applied has two maximal values, where the current-voltage profile is acquired in a case where the voltage is sweep-applied from −40 V to +40 V at a first change rate of 10 kV/cm·sec while the piezoelectric film is sandwiched between a pair of electrode layers.
Claims11
A piezoelectric film comprising:
- a perovskite-type oxide as a main component,
- wherein a current-voltage profile showing a relationship between a voltage and a current that flows in a case where the voltage is applied has two maximal values, where the current-voltage profile is acquired in a case where the voltage is sweep-applied from −40 V to +40 V at a first change rate of 10 kV/cm·sec while the piezoelectric film is sandwiched between a pair of electrode layers.
Dependencies are inferred from the claim text.