18461926. PIEZOELECTRIC ELEMENT simplified abstract (FUJIFILM Corporation)
Contents
PIEZOELECTRIC ELEMENT
Organization Name
Inventor(s)
Naohiro Ohara of Minamiashigara-shi (JP)
PIEZOELECTRIC ELEMENT - A simplified explanation of the abstract
This abstract first appeared for US patent application 18461926 titled 'PIEZOELECTRIC ELEMENT
Simplified Explanation
The abstract describes a piezoelectric element that prevents wrinkles in a laminated structure of piezoelectric films. The element consists of multiple piezoelectric films with piezoelectric particles embedded in a polymer matrix, sandwiched between electrode layers. A protective layer is added on the surface of the electrode layer. The adjacent piezoelectric films are adhered using an adhesive layer. The difference in height between the maximum height of each piezoelectric film and the height at a position 43 μm inside from the edge surface is less than or equal to 4.2 μm.
- Piezoelectric element prevents wrinkles in laminated piezoelectric films
- Consists of multiple piezoelectric films with embedded piezoelectric particles in a polymer matrix
- Electrode layers and a protective layer are added to the structure
- Adhesive layer used to adhere adjacent piezoelectric films
- Height difference between maximum height and position 43 μm inside is ≤ 4.2 μm
Potential Applications
- Piezoelectric sensors
- Actuators in microelectromechanical systems (MEMS)
- Energy harvesting devices
- Ultrasonic transducers
Problems Solved
- Wrinkles in piezoelectric films in a laminated structure
- Ensuring uniformity and stability in piezoelectric element performance
Benefits
- Improved reliability and durability of piezoelectric elements
- Enhanced performance and accuracy in sensing and actuation applications
- Enables the production of high-quality piezoelectric devices.
Original Abstract Submitted
Provided is a piezoelectric element capable of preventing wrinkles from occurring in a piezoelectric element in which a plurality of piezoelectric films are laminated. The piezoelectric element is configured such that a plurality of piezoelectric films, in which a piezoelectric particles in a matrix including a polymer material is sandwiched between electrode layers and a protective layer is laminated on a surface of the electrode layer that is not in contact with the piezoelectric layer, are laminated and the adjacent piezoelectric films are adhered through an adhesive layer. A difference between a maximum height of each piezoelectric film in a thickness direction in a region ranging from an edge surface to 43 μm inside and a height of the piezoelectric film in the thickness direction at a position of 43 μm inside from the edge surface is equal to or less than 4.2 μm.
