46results about "Particle application" patented technology

A magnetic film includes a plurality of magnetically permeable particles dispersed between opposing first and second major surfaces of the magnetic film. The first and second major surfaces are spaced apart a distance D. The particles are agglomerated so as to form a plurality of substantially continuous layers of particles generally extending along orthogonal first and second directions and arranged along a third direction. Each substantially continuous layer of particles has a length L along the first direction from a first to an opposing second edge of the magnetic film and a width W along the second direction extending from the first to the second major surface. L / D≥100.

Magnetic inductors for microelectronics packages are provided. Magnetic inductive structures include a magnetic region, a magnetic region base region, and a conductive region that forms a channel within the magnetic region. The magnetic region has a different chemical composition than the base region. Additional structures are provided in which the magnetic region is recessed into a package substrate core. Further inductor structures are provided in which the conductive region includes through-core vias and the conductive region at least partially encircles a portion of a package substrate core. Additionally, methods of manufacture are provided for semiconductor packages that include magnetic inductors.

A soft magnetic resin composition includes a solid content containing flat soft magnetic particles and a resin component, and a dispersion medium. Furthermore, a viscosity (A) at a shear rate of 38.1 s-1 is 300 mPa·s or more. Furthermore, a ratio (A / C) of the viscosity (A) at a shear rate of 38.1 s-1 with respect to a viscosity (C) at a shear rate of 191.5 s-1 is 1.7 or more.

To provide a magnetic paste that comprises small-diameter magnetic powder but shows little change in viscosity over time.SOLUTION: This magnetic paste includes (A) a magnetic powder, and (B) a thermosetting resin, wherein the (A) magnetic powder has an average particle diameter of 10 μm or less, and the moisture content of the magnetic paste is 1000 ppm or less.SELECTED DRAWING: None

The present application belongs to the field of ferrite thick film preparation, and particularly relates to a high orientation degree hexagonal ferrite thick film and a hot-pressing preparation method thereof. The present application aims at the problem that high orientation degree and high density of the hexagonal ferrite thick film are difficult to be realized simultaneously, and proposes a two-step hot-pressing sintering method to improve the orientation degree of the thick film. The low-temperature hot-pressing magnetic field orientation process and the high-temperature hot-pressing sintering process are organically combined to form a two-step hot-pressing sintering method for preparing the high-orientation and dense BaFe 12 O 19 thick film. The electromagnet and the heating plate in the low-temperature hot-pressing magnetic field orientation equipment are combined in a discrete manner, which effectively improves the stability of the magnetic field and is beneficial to the improvement of the orientation degree of the thick film.

The invention relates to a printing stencil for a stencil printing device 4, wherein the printing stencil 2 comprises open areas 6 for the passage of a printing medium 8 and cover areas 10 for preventing the passage of the printing medium 8, wherein at least two connecting webs 12 are provided between at least two cover areas 10. The invention is characterized in that two adjacent connecting webs 12 have a mean width that differs by at least 5%.

The invention relates to a method (100) for producing a planar magnetized structure (1a) having two opposite sides (2a, 3a) with different magnetic polarities. It is proposed to roll up or fold a magnetizable structure (1) in a specific manner prior to the magnetization process.

To provide a thermal spraying shield film capable of magnetically shielding low-frequency magnetism.SOLUTION: In a magnetic shield material and a manufacturing method thereof that deposits a shield film that shields magnetism by spraying on at least a part of the surface of a base material, a shield film 3 is formed using powder of a soft magnetic material that shields by absorbing low-frequency magnetism as a thermal spray material, and the soft magnetic material is sendust, permalloy, silicon steel, and another metal material, ferrite, or another ceramic.SELECTED DRAWING: Figure 1

To provide a method for manufacturing a thinner magnetic member in which a magnetic member that has sufficient interlayer strength between a substrate and a magnetic layer, and a magnetic member manufactured by the manufacturing method which is thin and hard to be broken if bent.SOLUTION: A method for manufacturing a magnetic member further comprises: a step of preparing a substrate which has a surface and a rear face, and on the surface of which an anchor coat layer is formed; a step of adhering a reinforcing member on the rear face of the substrate; a step of forming a composite magnetic layer, in which magnetic powder is dispersed in binder, on the anchor coat layer; and a step of peeling the reinforcing member after forming the composite magnetic layer.SELECTED DRAWING: Figure 1

The present invention provides a magnetic paste and the like, which has low viscosity even when containing a magnetic powder, and which can provide a cured product having excellent mechanical strength. The present invention provides a magnetic paste, which contains (A) a magnetic powder, (B) an epoxy resin, (C) a dispersant, and (D) a curing agent, wherein the (C) component has a polyester skeleton represented by General Formula (1) below. In General Formula (1), R each independently represents a divalent hydrocarbon group having 2 to 10 carbon atoms, and n represents an integer of 2 to 1000.

An electromagnetic material for an inductance for operation at cryogenic temperatures including, in an electrically insulating matrix, metal nanoparticles with superparamagnetic behavior of size less than or equal to 30 nm and having a magnetic permeability greater than or equal to 1.5 for a frequency between 5 GHz and 50 GHz.

A ferromagnetic-polymer composite material comprises a polymer and a plurality of ferromagnetic film platelets disposed in the polymer. Each ferromagnetic film platelet comprises first and second insulator layers and a ferromagnetic layer disposed between the first and second insulator layers. The ferromagnetic layer can be magnetically anisotropic in which a hard axis of magnetization is aligned parallel to a plane that passes through and parallel to an interface between the first insulator layer and the ferromagnetic layer. The easy and / or hard axes of magnetization in the ferromagnetic film platelets can be aligned. An inductor can have a core formed of the ferromagnetic-polymer composite material.

A ferromagnetic-polymer composite material comprises a polymer and a plurality of ferromagnetic film platelets disposed in the polymer. Each ferromagnetic film platelet comprises first and second insulator layers and a ferromagnetic layer disposed between the first and second insulator layers. The ferromagnetic layer can be magnetically anisotropic in which a hard axis of magnetization is aligned parallel to a plane that passes through and parallel to an interface between the first insulator layer and the ferromagnetic layer. The easy and / or hard axes of magnetization in the ferromagnetic film platelets can be aligned. An inductor can have a core formed of the ferromagnetic-polymer composite material.

The invention relates to a method (100) for producing a planar magnetized structure (1a) with two opposing sides (2a, 3a) of opposite magnetic polarity. It is proposed to roll or fold a magnetizable structure (1) in a specific manner before the magnetization process.

The present invention relates to the field of magnetic assemblies and processes for producing optical effect layers (OELs) comprising magnetically oriented non-spherical magnetic or magnetizable pigment particles on a substrate. In particular, the present invention relates to magnetic assemblies processes for producing said OELs as anti-counterfeit means on security documents or security articles or for decorative purposes.

This soft magnetic resin composition comprises a dispersion medium and a solid content including flat-shaped soft magnetic particles and a resin component. The viscosity (A) at a shear rate of 38.1 s-1 is at least 300 mPa·s. Furthermore, the ratio (A / C) of the viscosity (A) at a shear rate of 38.1 s-1 to the viscosity (C) at a shear rate of 191.5 s-1 is at least 1.7.

A magnetic paste comprising: (A) a magnetic powder; and (B) a thermosetting resin, wherein (A) the magnetic powder has an average particle diameter of 10 µm or less, and a water content in the magnetic paste is 1000 ppm or less.

The invention relates to the field of protecting security documents such as, for example, banknotes and identity documents from counterfeiting and illegal copying. Specifically, the present invention provides an apparatus and method for producing an optical effect layer (OEL) comprising a magnetic orientation that exhibits not only a dynamic movement, but also an attractive relief and / or 3D effect when tilted, and can be used as a security means on security documents or security articles or for decorative purposes.

This invention discloses a laser-direct-write magnetic thin-film encapsulation method for chip-based inductive elements, relating to the field of integrated circuit packaging technology. The method involves uniformly mixing magnetic nanoparticles with a curable adhesive to form a magnetic slurry, which is then uniformly coated onto a chip containing an inductive element. A laser is used to directionally irradiate the magnetic slurry above the inductive element, causing it to solidify and form a magnetic thin film that adheres tightly to the chip. Uncured magnetic slurry on the chip is then cleaned away, resulting in an inductive element encapsulated with the magnetic thin film. This method solidifies the magnetic film within a designated area of ​​the chip's inductive element, avoiding direct contact with the element's surface. This prevents chip interface damage and device failure, as well as issues such as secondary diffusion failure of active devices due to excessive temperature. It is fully compatible with standard semiconductor processes, facilitating commercial applications. The encapsulation process is simple, efficient, and flexible.

An isotropic granular thin film having a high sensitivity to an external magnetic field when linearly polarized light enters from the normal direction of a magnetic thin film is provided. An isotropic granular thin film 1 in which ferromagnetic nanoparticles 3 are dispersed in a dielectric matrix 2, wherein the ferromagnetic nanoparticle 3 consists of Co, an average particle diameter of the ferromagnetic nanoparticle 3 is not less than 5.0 nm and not more than 17.0 nm, a particle volume density of the ferromagnetic nanoparticle 3 is not less than 1 vol% and not more than 20 vol%, and magnetic dipole interaction energy of the ferromagnetic nanoparticle 3 is less than or equal to 2.0E-26 J.

This soft magnetic resin composition comprises a dispersion medium and a solid content including flat-shaped soft magnetic particles and a resin component. The viscosity (A) at a shear rate of 38.1 s-1 is at least 300 mPa·s. Furthermore, the ratio (A / C) of the viscosity (A) at a shear rate of 38.1 s-1 to the viscosity (C) at a shear rate of 191.5 s-1 is at least 1.7.

This invention provides parasitic millirobots that can effectively adapt to an unstructured environment and coherently interact with diverse objects in order to fulfil various application needs. Particularly, a minimalist millirobot construction strategy by splashing composited agglutinate magnetic spray (M-spray) is adopted, which is capable of self-turning multifarious milli- / centi-objects into parasitic millirobots on-demand. Through taking full advantage of the objects' inherent structure and a covered thin drivable film, the M-spray demonstrates superior handling (from 1-D to 3-D structures) and loading capabilities (up to thousand-fold and hundred-fold of its volume and weight, respectively) while with neglectable size increment (as low as 1%) to target. Moreover, benefitting from peculiarities of online reprogramming and controllable disintegration, the parasitic millirobots can rewrite its locomotion mode according to the task and disintegrate themselves after mission accomplished, offering high adaptivity and compatibility for in vivo biomedical applications. Methods for conversion and fabrication thereof are also provided.

An inductor apparatus has at least one inductor coil encapsulated in a semiconductor packing material; the semiconductor packing material has a series of gaps in a row around the inductor coil; the gaps are coated in a magnetic hybrid material; and the semiconductor packing material encapsulating by the inductor coils is coated over the portions which cover the inductor coil. This inductor apparatus improves the efficiency with regard to wireless charging of wireless transmitters and receivers that utilize magnetic hybrid cores, as defined herein, by better directing the magnetic flux as it curves into the magnetic hybrid material.

The invention relates to a method for manufacturing a multilayer magnet, the method comprising the following sequence of steps: a) a layer (42a-42g) of a magnetic material powder is introduced into a press (22) and pressed or pre-compacted (24); b) a layer of electrically insulating material powder is introduced into the press onto the layer of magnetic material powder (28) and pressed or pre-compacted (30); c) steps a) and b) are successively repeated to produce a multilayer composite (40, 50) in accordance with the number of desired layers (42a-42g) of the magnetic material; and d) the multilayer composite is sintered (34). This method allows multilayer magnets to be manufactured cost-effectively.

A method for manufacturing a ferromagnetic-dielectric composite material comprises: (a) placing patterned ferromagnetic layer regions, in a patterning substrate assembly that includes a patterning substrate and a first dielectric layer, in physical contact with a second dielectric layer, the second dielectric layer in a receiving substrate assembly that includes a receiving substrate, (b) forming a bond between the patterned ferromagnetic layer regions and the second dielectric layer; (c) releasing the patterning substrate from the patterning substrate assembly to transfer the patterned ferromagnetic layer regions and the first dielectric layer from the patterning substrate assembly to the receiving substrate assembly; and (d) releasing the receiving substrate from the receiving substrate assembly to form the ferromagnetic-dielectric composite material.

To provide, e.g., a magnetic paste that can yield a cured product that is excellent in mechanical strength and reduced in viscosity in spite of containing magnetic powder.SOLUTION: A magnetic paste comprises (A) magnetic powder, (B) epoxy resin, (C) a dispersant, and (D) a curing agent, where the component (C) has a polyester skeleton represented by the general formula (1) in the figure. (In general formula (1), each R independently represents a divalent hydrocarbon group having 2 to 10 carbon atoms, and n represents an integer of 2 to 1000.)SELECTED DRAWING: None

The present invention relates to the field of protecting security documents, such as banknotes and identification cards, from forgery and illegal reproduction. In particular, the present invention provides an apparatus and process for producing optical effect layers (OELs), including magnetically oriented ones, which exhibit not only dynamic movement when tilted but also eye-catching relief and / or 3D (three-dimensional) effects, and can function as an anti-counterfeiting measure for security documents or security articles, or for decorative purposes.

The invention relates to a method for producing a stack of magnetic sheets (2), comprising the following steps: - producing a magnetic sheet (12) wherein a slurry 6 comprising soft magnetic particles mixed with a binder is first formed into a first, soft magnetic layer (8), - drying the soft magnetic layer (8), - applying a second, electrically insulating layer (10) to the soft magnetic layer (8) so that a magnetic sheet (12) is formed, - fanning the magnetic sheet (12) into a stack of sheets (14) such that two soft magnetic layers (8) and two electrically insulating layers (10) alternately lie on top of each other in the stack of sheets (14), - separating a stack of magnetic sheets (2-1) in the green state from the folded stack of sheets (14), - debinding the stack of magnetic sheets (2-1), - sintering the stack of magnetic sheets (2-1) to form a near-net-shape stack of magnetic sheets (2-2).so that - two superimposed identical layers (8, 10), two soft magnetic layers (8) and two electrically insulating layers (10) in the sintered state of the magnetic sheet stack (2-2) each form a magnetic sheet (16).