A magnetic film includes one or more magnetically conductive layers. Each magnetically conductive layer is cracked to form a plurality of first through-cracks defining a plurality of magnetically conductive segments. The first through-cracks extend along a first direction and form a first regular pattern along an orthogonal second direction at a first pitch P1, such that a Fourier transform of the first regular pattern has a first peak along the second direction at a first spatial frequency corresponding to the first pitch P1. The first through-cracks have an average length L1 along the first direction. L1/P1 is greater than or equal to 5.

An electronic component includes a composite body composed of a composite material of a resin and a magnetic metal powder and a metal film disposed on an outer surface of the composite body. The magnetic metal powder contains Fe. The metal film mainly contains Ni and is in contact with the resin and the magnetic metal powder.

Disclosed herein are embodiments of low temperature co-fireable barium tungstate materials which can be used in combination with high dielectric materials, such as nickel zinc ferrite, to form composite structures, in particular for isolators and circulators for radiofrequency components. Embodiments of the material can include flux, such as bismuth vanadate, to reduce co-firing temperatures.

A method for manufacturing a vapor deposition mask including a resin layer, and a magnetic metal layer formed on the resin layer, the method including the steps of: providing a substrate; forming a resin layer by applying a solution including a resin material or a precursor solution of a resin material on a surface of the substrate, and then performing a heat treatment thereon; forming a magnetic metal layer on the resin layer, mask portion including a solid portion where a metal film is present and a hollow portion where the metal film is absent; forming a plurality of openings in a region of the resin layer that is located in the hollow portion of the mask portion; and removing the resin layer from the substrate after forming a plurality of openings in a region of the resin layer.

Aspects of the present disclosure include magnetic sensor devices having a mixed oxide passivation layer. Magnetic sensor devices according to certain embodiments include a magnetic sensor element and a passivation layer having two or more of zirconium oxide, aluminum oxide and tantalum oxide. Also provided are magnetic sensor devices having an encapsulating passivation layer. Magnetic sensor devices according to certain embodiments include a substrate, a magnetic sensor element and a passivation layer that encapsulates the magnetic sensor element. Methods for making a magnetic sensor with a passivation layer are described. Methods and systems for detecting one or more analytes in a sample are also described. Aspects further include kits having one or more of the subject magnetic sensor devices and a magnetic label.

A wireless device having electromagnetic shielding for a coil includes a composite magnetic sheet. The composite magnetic sheet includes first and second magnetic sheet parts. The first magnetic sheet part has a stacked structure of magnetic sheets including a surface which is an outermost surface of the first magnetic sheet part. The second magnetic sheet part is disposed on the outermost surface of the first magnetic sheet part. At least one magnetic sheet of the first magnetic sheet part includes a cracked structure and the second magnetic sheet part does not include a cracked structure. A protective member is disposed above the composite magnetic sheet. A coil is disposed below the composite magnetic sheet. A magnetic sheet of the first magnetic sheet part with a cracked structure has a surface roughness or porosity greater than that of the second magnetic sheet part without a cracked structure.

A bulk permanent magnetic material may include between about 5 volume percent and about 40 volume percent Fe.sub.16N.sub.2 phase domains, a plurality of nonmagnetic atoms or molecules forming domain wall pinning sites, and a balance soft magnetic material, wherein at least some of the soft magnetic material is magnetically coupled to the Fe.sub.16N.sub.2 phase domains via exchange spring coupling. In some examples, a bulk permanent magnetic material may be formed by implanting N+ ions in an iron workpiece using ion implantation to form an iron nitride workpiece, pre-annealing the iron nitride workpiece to attach the iron nitride workpiece to a substrate, and post-annealing the iron nitride workpiece to form Fe.sub.16N.sub.2 phase domains within the iron nitride workpiece.

A laminated sheet includes a sheet-shaped inductor including a plurality of wirings and a magnetic layer embedding the plurality of wirings, and a processing stability layer disposed on at least one surface 6 in a thickness direction of the inductor. The magnetic layer includes a binder and a magnetic particle having a generally flat shape and whose material is a metal. The processing stability layer includes a cured product of a thermosetting resin composition. The thermosetting resin composition includes a thermosetting resin as an essential component. The thermosetting resin composition includes at least one kind of particle, as an optical component, selected from the group consisting of a first particle having a generally spherical shape and a second particle having a generally flat shape and whose material is an inorganic compound.

A magnetic sheet according to the present invention contains Mn—Zn ferrite as a main component and is comprising of a sheet-shaped sintered body. In this magnetic sheet, a difference |σs−σc| between a residual stress σs in a surface layer portion and a residual stress σc in a central portion at a cross section is 20 MPa or less in absolute value.

A winding-type coil component whose core member is constituted by: soft magnetic alloy grains 210 containing Fe, Si, and at least one of Cr and Al, as constituent elements; and an oxide layer 220 which is formed around the soft magnetic alloy grains to bond the soft magnetic alloy grains together and contains Si, as well as at least one of Cr and Al, as constituent elements, and whose content of Si based on mass is higher than the total content of Cr and Al. The winding-type coil component has high mechanical strength.