A method is described for the assembly of a magnetic core for a transformer, with the following steps: Cutting sheet metal blanks from transformer sheet, stacking the sheet metal blanks to form magnetic core segments, placing a permanent magnet at one of the magnetic core segments so that the latter is magnetized by the permanent magnet, formation of the magnetic core by placing the remaining magnetic core segments against the permanent magnet, or against a magnetic core segment already magnetized by the permanent magnet. A magnetic core is also disclosed.

Described are microelectronic devices including an embedded microelectronic package for use as an integrated voltage regulator with a microelectronic system. The microelectronic package can include a substrate and a magnetic foil. The substrate can define at least one layer having one or more of electrically conductive elements separated by a dielectric material. The magnetic foil can have ferromagnetic alloy ribbons and can be embedded within the substrate adjacent to the one or more of electrically conductive elements. The magnetic foil can be positioned to interface with and be spaced from the one or more of electrically conductive element.

A grain-oriented silicon steel with low iron loss, wherein the silicon steel is provided with a plurality of grooves on its surface, each of the grooves is 10-60 μm in width and 5-40 μm in depth, and the spacing between adjacent grooves is 1-10 mm. The manufacturing method therefor comprises: scoring the surface of the grain-oriented silicon steel with low iron loss by using a laser in order to form the grooves. The grain-oriented silicon steel with low iron loss can maintain the magnetic domain refining effect in a stress-relief annealing process, and avoid the introduction of more residual stress.

A mobile terminal is provided with a housing, a circuit board included in the housing and having a thickness direction normal to a plane of the circuit board, a battery pack included in the housing, and a non-contact charging module included in the housing. The non-contact charging module includes a charging coil formed of a wound conducting wire; a communication coil arranged adjacent to the charging coil; and a magnetic sheet on which the charging coil and the communication coil are arranged. The magnetic sheet has four edges that collectively define a rectangular profile of the magnetic sheet, and at most three pairs of adjacent edges respectively meet to form at most three corners. At least a portion of the non-contact charging module overlaps with the circuit board as viewed in the thickness direction of the circuit board.

A mobile terminal is provided with a housing, a circuit board included in the housing and having a thickness direction normal to a plane of the circuit board, a battery pack included in the housing, and a non-contact charging module included in the housing. The non-contact charging module includes a charging coil formed of a wound conducting wire; a communication coil arranged adjacent to the charging coil; and a magnetic sheet on which the charging coil and the communication coil are arranged. The magnetic sheet has four edges that collectively define a rectangular profile of the magnetic sheet, and at most three pairs of adjacent edges respectively meet to form at most three corners. At least a portion of the non-contact charging module overlaps with the circuit board as viewed in the thickness direction of the circuit board.

A hybrid transformer core flGf includes comprises columns (21 23) of grain-oriented steel and yokes . A yoke includes a plurality of second plies including sheets of amorphous steel adhered to each other by an adhesive coating on an outer peripheral area of major faces of the sheets of amorphous steel.

In a magnetic core including a core assembly formed of multiple arranged thin strip blocks, each of the thin strip blocks has a structure that multiple nanocrystalline thin strips having a bcc-Fe phase as a main phase are laminated one above another, and an iron loss in the nanocrystalline thin strip positioned at a center of the thin strip block in a thickness direction thereof is lower than an iron loss in the nanocrystalline thin strip positioned in a surface layer of the thin strip block. The nanocrystalline thin strip may be a heat-treated product of an amorphous thin strip made of an amorphous alloy material, and the thin strip block may include a fixedly joined portion in which the nanocrystalline thin strips adjacent to each other in a lamination direction are fixedly joined together.

In a magnetic core including a core assembly having a structure that multiple thin strip blocks are arranged, the thin strip blocks being formed of multiple laminates of nanocrystalline thin strips made of a nanocrystal-containing alloy material, the thin strip block includes a fixedly joined portion in which the nanocrystalline thin strips adjacent to each other in a lamination direction are fixedly joined together. The fixedly joined portion may include side surfaces of the nanocrystalline thin strips and may be a laser welded portion.

To provide an electronic component having printing, which can achieve both of a moisture resistance capability and visibility of printing, and a method of manufacturing the same. A method of manufacturing an electronic component having printing, including preparing an electronic component before being subjected to printing, which is provided with a magnetic element body made of an alloy magnetic material containing a transition metal on a surface thereof, and a glass layer that contains Bi with which the magnetic element body is at least partly coated and does not contain a transition metal, and irradiating the electronic component before being subjected to printing with laser light having a wavelength of 1064 nm so that the laser light is transmitted through the glass layer, so that a printing portion is formed at a partial glass portion in a vicinity of an interface between the magnetic element body and the glass layer.

To provide an electronic component having printing, which can achieve both of a moisture resistance capability and visibility of printing, and a method of manufacturing the same. A method of manufacturing an electronic component having printing, including preparing an electronic component before being subjected to printing, which is provided with a magnetic element body made of an alloy magnetic material containing a transition metal on a surface thereof, and a glass layer that contains Bi with which the magnetic element body is at least partly coated and does not contain a transition metal, and irradiating the electronic component before being subjected to printing with laser light having a wavelength of 1064 nm so that the laser light is transmitted through the glass layer, so that a printing portion is formed at a partial glass portion in a vicinity of an interface between the magnetic element body and the glass layer.