A wireless electrical energy transmission system is provided. The system comprises a wireless transmission base configured to wirelessly transmit electrical energy or data via near field magnetic coupling to a receiving antenna configured within an electronic device. The wireless electrical energy transmission system is configured with at least one transmitting antenna and a transmitting electrical circuit positioned within the transmission base. The transmission base is configured so that at least one electronic device can be wirelessly electrically charged or powered by positioning the at least one device external and adjacent to the transmission base.

A magnetic film includes iron and copper distributed between opposing first and second major surfaces of the magnetic film. The copper has a first atomic concentration C1 at a first depth d1 from the first major surface and a peak second atomic concentration C2 at a second depth d2 from the first major surface, d2>d1, C2/C1≥5.

The present disclosure provides an inspection system and a method of stray field mitigation. The system includes an array of electron beam columns, a first permanent magnet array, and a plurality of shielding plates. The array of electron beam columns each includes an electron source configured to emit electrons toward a stage. The first permanent magnet array is configured to condense the electrons from each electron source into an array of electron beams. The first permanent magnet array is arranged at a first end of the array of electron beam columns. The plurality of shielding plates extend across the array electron beam columns downstream of the first permanent magnet array in a direction of electron emission. The array of electron beams pass through a plurality of apertures in each of the plurality of shielding plates, which reduces stray magnetic field in a radial direction of the array of electron beams.

Disclosed are a method and an apparatus for designing a magnetic shielding apparatus and a magnetic shielding apparatus. The method includes: determining a region of interest inside the magnetic shielding apparatus, the region of interest being a region where a magnetic shielding effect is expected to be achieved, and the magnetic shielding apparatus including N layers of shields disposed in a nested manner; determining a complete parameter set; and obtaining, based on the complete parameter set, a set of result parameters for describing the geometric structure, the set of result parameters that enables magnetic flux density in the region of interest to meet a preset threshold. This method not only greatly improves optimized magnetic shielding performance compared with an equal-spacing solution, but also resolves a problem that an analytical method cannot be used to optimize a magnetic shielding apparatus with a non-concentric structure.

Disclosed are a method of uniformly dispersing nickel-plated conductive particles of a single layer within a polymer film by applying a magnetic field to the polymer film and a method of fabricating an anisotropic conductive film using the same. The method of fabricating a film may include forming a liquefied polymer layer by roll-to-roll coating a polymer solution in which a plurality of conductive particles has been mixed, dispersing the plurality of conductive particles included in the liquefied polymer layer by applying a magnetic field to the liquefied polymer layer, and fabricating a solid polymer layer limiting a movement of the plurality of dispersed conductive particles by drying the liquefied polymer layer in which the plurality of conductive particles has been dispersed.

An electronic device or electronic device assembly may comprise a first portion and a second portion, a first magnet disposed inside the first portion and rotatable about a pivot axis with respect to the first portion, and a second magnet disposed inside the second portion and rotatable about a pivot axis with respect to the second portion. The first and second magnet may be configured to rotate so that the first and second magnets magnetically engage each other when the distance between the first and second magnet is equal to or smaller than a first distance.

An electronic device including a shield structure is provided. The electronic device includes a first device including a first magnetic substance, a second device including a second magnetic substance, and a shield structure configured to shield at least part of a magnetic force generated between the first magnetic substance and the second magnetic substance, wherein the shield structure includes a shield member disposed between the first device and the second device and including a property of a magnetic substance, and a connecting member physically connected to at least part of the shield member and including a property of a nonmagnetic substance, wherein at least part of the connecting member is physically connected to a circuit board.

A substrate unit of an embodiment includes a plurality of substrates and a holding part. The plurality of substrates are arranged at a constant interval in a thickness direction. The holding part integrally holds the plurality of substrates and allows, relative to one substrate of the plurality of substrates, another substrate to be movable along a plane direction of the substrate.

A radio wave absorber includes a resistive layer, an electroconductive layer, and a dielectric layer. The resistive layer has a first main surface with a plurality of first openings formed at equal intervals. The electroconductive layer has a second main surface with a plurality of second openings formed at equal intervals. The dielectric layer is disposed between the resistive layer and the electroconductive layer. In the radio wave absorber, a value obtained by dividing a larger value out of a first ratio and a second ratio by a smaller value out of the first ratio and the second ratio is 1.3 or more. The first ratio is a ratio (G.sub.R/W.sub.R) of a size G.sub.R of the first opening to a distance W.sub.R between the first openings. The second ratio is a ratio (G.sub.C/W.sub.C) of a size G.sub.C of the second opening to a distance W.sub.C between the second openings.

Enclosures and corresponding magnetic joints. An apparatus includes an enclosure. The enclosure includes a magnetic panel joint formed by: a first panel carrying a magnet and comprising a first pocket; a second panel including a second pocket; and a ferromagnetic shield coupled within the second pocket and couplable within the first pocket via the magnet.