A die alignment method includes vertically aligning a first die comprising first magnetic patterns and a second die comprising second magnetic patterns with each other using magnetic force between the first magnetic patterns and the second magnetic patterns. Each of the first magnetic patterns and the second magnetic patterns comprises a horizontally magnetically anisotropic material. The first magnetic patterns and the second magnetic patterns do not vertically overlap each other when the first die and the second die are vertically aligned with each other.

A die alignment method includes vertically aligning a first die comprising first magnetic patterns and a second die comprising second magnetic patterns with each other using magnetic force between the first magnetic patterns and the second magnetic patterns. Each of the first magnetic patterns and the second magnetic patterns comprises a horizontally magnetically anisotropic material. The first magnetic patterns and the second magnetic patterns do not vertically overlap each other when the first die and the second die are vertically aligned with each other.

One embodiment relates to an apparatus for adjustment of local magnetic strength in a magnetic device. A stage holds the magnetic device, and a sensor measures a magnetic field at locations above the magnetic device so as to generate magnetic field data. A computer system detects a non-uniformity in the magnetic field from the magnetic field data and determines a location and a duration for application of a pulsed laser beam to correct the non-uniformity. A laser device applies the pulsed laser beam at said location for said duration. Another embodiment relates to a method of adjusting local magnetic strength in a magnetic device. Another embodiment relates to a system for fine-tuning a magnet array with localized energy delivery. Other embodiments, aspects and features are also disclosed.

An orientation magnetization device includes plural orientation magnetization yokes and plural orientation magnetization magnets, and molds field magnets while a rotor core is disposed in a magnetic circuit that is formed by assembling the orientation magnetization yokes and the orientation magnetization magnets into an annular shape. When the rotor core is disposed in the magnetic circuit, protruding portions are disposed at portions of the respective orientation magnetization yokes facing the rotor core. Auxiliary magnets are disposed in gaps between the respective orientation magnetization magnets and the rotor core, on opposite sides of each protruding portion in a circumferential direction of the orientation magnetization device. Each protruding portion and each auxiliary magnet extend in an axial direction of the orientation magnetization device, and are skewed with respect to the axial direction of the orientation magnetization device.

This invention provides methods for fabricating a hard or soft magnet with tailorable magnetic and crystallographic orientations. Methods are disclosed to individually tailor three-dimensional voxels for selected crystallographic orientations and, independently, selected magnetic orientations with location specificity throughout a magnet. Some variations provide a method of making a magnet, comprising: providing a feedstock composition containing magnetic or magnetically susceptible materials; exposing the feedstock composition to an energy source for melting, thereby generating a first melt layer; solidifying the first melt layer in the presence of an externally applied magnetic field, thereby generating a magnetic metal layer containing a plurality of individual voxels; optionally repeating to generate a plurality of solid layers; and recovering a magnet comprising the magnetic metal layer(s), wherein the externally applied magnetic field has a magnetic-field orientation that is selected to control a magnetic axis and a crystallographic texture within the magnetic metal layer(s).

A packaging machine includes: a conveying machine that conveys a package blank for a package; a lid-side magnetizing roller that is supported so as to be able to come into contact with the lid-side magnetic region of the package blank, and so as to be rotatable when coming into contact, and has a permanent magnet which magnetizes a magnetic material of the lid-side magnetic region; and a body-side magnetizing roller that is supported so as to be able to come into contact with the body-side magnetic region of the package blank, and so as to be rotatable when coming into contact, and has a permanent magnet for magnetizing a magnetic material of the body-side magnetic region so as to form a predetermined magnetic distribution corresponding to a magnetic distribution in the lid-side magnetic region formed by the lid-side magnetizing roller.

A packaging machine includes: a conveying machine that conveys a package blank for a package; a lid-side magnetizing roller that is supported so as to be able to come into contact with the lid-side magnetic region of the package blank, and so as to be rotatable when coming into contact, and has a permanent magnet which magnetizes a magnetic material of the lid-side magnetic region; and a body-side magnetizing roller that is supported so as to be able to come into contact with the body-side magnetic region of the package blank, and so as to be rotatable when coming into contact, and has a permanent magnet for magnetizing a magnetic material of the body-side magnetic region so as to form a predetermined magnetic distribution corresponding to a magnetic distribution in the lid-side magnetic region formed by the lid-side magnetizing roller.

Magnet arrangements, sensor devices and corresponding methods are provided comprising a first magnet portion and a second magnet portion. The first magnet portion is spaced apart from the second magnet portion, and the second magnet portion comprises a bore. In a corresponding sensor device, a sensor element may be provided at a position between the first and second magnet portions.

A method for producing a printed magnetic functional element, in which a substrate is provided on one surface with at least one contact made of an electrically conductive material. Subsequently, a structure made of a material which has a magnetoresistive effect and is in the form of a paste, a gel, a dispersion or a suspension is printed on or onto the at least one contact and touches the contact directly, and the structure becomes electrically conductive and sensitive to magnetic fields by irradiation with electromagnetic radiation over a time period in the millisecond range.

A method for producing a printed magnetic functional element, in which a substrate is provided on one surface with at least one contact made of an electrically conductive material. Subsequently, a structure made of a material which has a magnetoresistive effect and is in the form of a paste, a gel, a dispersion or a suspension is printed on or onto the at least one contact and touches the contact directly, and the structure becomes electrically conductive and sensitive to magnetic fields by irradiation with electromagnetic radiation over a time period in the millisecond range.