Multilayer electronic device
US12374490B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2023 |
| Grant date | Jul 29, 2025 |
| Priority date | — |
| Expiry date | Dec 11, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G4/1245
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A multilayer electronic device includes an element body and a pair of external electrodes. The element body includes an interior region in which inner dielectric layers and internal electrode layers are alternately laminated and an exterior region located outside the interior region in its lamination direction. The pair of external electrodes exists on surfaces of the element body. Main-phase particles in the inner dielectric layers and outer dielectric layers of the exterior region include a main component having a perovskite crystal structure represented by a general formula of ABO3. r1<r2<r1×4.0 is satisfied, in which r1 is an average particle size of the main-phase particles constituting the inner dielectric layers, and r2 is an average particle size of the main-phase particles constituting the outer dielectric layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.