Electromechanical-transducing electronic component, liquid discharge head, liquid discharge device, and liquid discharge apparatus
US10160208B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 11, 2017 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Apr 11, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/078
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An electromechanical-transducing electronic component includes at least one element array of electromechanical transducer elements. A piezoelectric material of each transducer element is made of a composite oxide having a perovskite structure preferentially oriented to at least one of (100) and (001) planes and has a drop of diffraction intensity in a rocking curve corresponding to at least one of (200) and (002) planes measured at a position (2θ=θmax) of a diffraction peak intensity P where the diffraction intensity is largest in a diffraction intensity peak corresponding to the at least one of the (200) and (002) planes out of diffraction intensity peaks measured by an X-ray diffraction θ-2θ method. ΔP/PAVE is 20% or less where PAVE represents an average of the intensity P in the element array in the piezoelectric material of each transducer element and ΔP represents a maximum difference of the intensity P in the array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.