Composite electronic including coil, capacitor and intermediate parts, wherein coil part includes coil-conductor and magnetic-layer, capacitor part includes internal electrodes and dielectric-layer, which contains SrOTiO2 or ZnOTiO2 based oxide, intermediate part between coil and capacitor parts, intermediate part includes intermediate material layer, which contains ZnO, TiO2 and boron, ZnO contained in intermediate material layer 50-85 parts by mole and TiO2 contained the intermediate material layer 15-50 parts by mole when total content of ZnO and TiO2 in intermediate material layer is 100 parts by mole, content boron in intermediate material layer is 0.1-5.0 parts by weight of B2O3 when total of ZnO and TiO2 in intermediate material layer set to 100 parts by weight, part of ZnO and TiO2 intermediate material layer constitute ZnOTiO2 compound, which in intermediate material layer is 50 wt % or more when total weight of ZnO and TiO2 in intermediate material layer is set to 100 wt %.

A planar magnetic core includes multiple ferromagnetic layers including multiple hard ferromagnetic bias layers and multiple soft ferromagnetic layers. Each ferromagnetic layer comprises a soft ferromagnetic layer or a hard ferromagnetic bias layer. Each hard ferromagnetic bias layer is a neighboring ferromagnetic layer of at least one soft ferromagnetic layer. The planar magnetic core also includes a plurality of insulating layers, each insulating layer disposed between adjacent ferromagnetic layers. Each ferromagnetic layer has an easy axis of magnetization parallel to a principal plane of the planar magnetic core, where the easy axes of magnetization are aligned. Each hard ferromagnetic bias layer is magnetized to create an in-plane bias magnetic flux through the hard ferromagnetic bias layer in a first direction that is parallel to the easy axis of magnetization and forms a closed path through a neighboring soft ferromagnetic layer in a second direction parallel to the first direction.

A planar magnetic core includes multiple ferromagnetic layers including multiple hard ferromagnetic bias layers and multiple soft ferromagnetic layers. Each ferromagnetic layer comprises a soft ferromagnetic layer or a hard ferromagnetic bias layer. Each hard ferromagnetic bias layer is a neighboring ferromagnetic layer of at least one soft ferromagnetic layer. The planar magnetic core also includes a plurality of insulating layers, each insulating layer disposed between adjacent ferromagnetic layers. Each ferromagnetic layer has an easy axis of magnetization parallel to a principal plane of the planar magnetic core, where the easy axes of magnetization are aligned. Each hard ferromagnetic bias layer is magnetized to create an in-plane bias magnetic flux through the hard ferromagnetic bias layer in a first direction that is parallel to the easy axis of magnetization and forms a closed path through a neighboring soft ferromagnetic layer in a second direction parallel to the first direction.

Embodiments of the disclosure provide a structure and method for a magnetic core with stacked magnetically anisotropic layers. A structure of the disclosure provides a magnetic core including a plurality of stacked magnetically anisotropic layers. Each of the plurality of stacked magnetically anisotropic layers has a hard axis angularly offset from an adjacent hard axis of an adjacent magnetically anisotropic layer. An inductor coil is on the magnetic core.

The present invention provides a method for making anisotropic or isotropic MnBi bonded bulk permanent magnet wherein starting high purity -MnBi (LTP) mono-crystalline fine feedstock powder particles or c-axis textured polycrystalline coarse powder particles are coated or covered with a single binder coating or a multi-binder coating system. The processed MnBi powder (which is coated or mixed with one or more polymer(s)) is pressed and/or consolidated to produce a dense anisotropic bonded magnet under a magnetic field or a dense isotropic bonded magnet without a magnetic field, at room temperature or elevated temperature. The polymer(s) used herein serve multiple functions: holding the powders together as a binder, isolating powder particles as a boundary phase to reduce magnetic exchange coupling among the particles and thus preferably retain a higher coercivity H.sub.c close to that of the starting MnBi powder, and protecting the powder from oxidation.

The present invention provides a method for making anisotropic or isotropic MnBi bonded bulk permanent magnet wherein starting high purity -MnBi (LTP) mono-crystalline fine feedstock powder particles or c-axis textured polycrystalline coarse powder particles are coated or covered with a single binder coating or a multi-binder coating system. The processed MnBi powder (which is coated or mixed with one or more polymer(s)) is pressed and/or consolidated to produce a dense anisotropic bonded magnet under a magnetic field or a dense isotropic bonded magnet without a magnetic field, at room temperature or elevated temperature. The polymer(s) used herein serve multiple functions: holding the powders together as a binder, isolating powder particles as a boundary phase to reduce magnetic exchange coupling among the particles and thus preferably retain a higher coercivity H.sub.c close to that of the starting MnBi powder, and protecting the powder from oxidation.

A method for forming magnets includes compacting particles of a metallic powder to form a magnet with homogeneous coercivity. The method further includes thermal gradient annealing the magnet to selectively promote grain growth within the magnet such that grain size of the magnet decreases in a direction of a temperature gradient corresponding to regions of lower temperature.