The apparatus and methods of the present disclosure relate to devices comprising spinning magnets driven by electric motors for use with printing or coating equipment. These devices and methods are for orienting magnetic or magnetisable pigment particles in an unhardened coating composition on a substrate. Specifically, these devices and methods are for producing optical effect layers. The apparatus comprises a holder, onto which is mounted a motor and a permanent magnet assembly. The motor is configured to spin the permanent magnet assembly. The holder is configured to be removably fixed to a base of a rotating magnetic cylinder (RMC) or a flatbed printing unit.

Embodiments of the invention relate generally to directed self-assembly (DSA) and, more particularly, to the DSA of electronic components using diamagnetic levitation.

A magnetic mounting system is provided. The system includes a device having a magnetic attachment feature and a magnetic device mount. The magnetic device mount has a mating magnetic attachment feature. The magnetic attachment feature and mating magnetic attachment feature allow specific angular, radial, and/or longitudinal alignment of the device relative to the mount without a mechanical interface. An electronic device holder and charging system with integrated charging and data transfer interface and a self-aligning, magnetic coupling and docking interface with on-demand decoupling feature are also disclosed.

A magnet array (400) includes multiple magnet (411-420) rings and a frame. The multiple magnet rings are positioned along a longitudinal axis and coaxially with the longitudinal axis, wherein at least two of the magnet rings include mixed-phase magnet rings (411, 413) that are phase-dissimilar. The multiple magnet rings are configured to jointly generate a magnetic field along a direction parallel to the longitudinal axis of at least a given level of uniformity inside a predefined inner volume (430). The frame is configured to fixedly hold the multiple magnet rings in place.

A magnet array (700) includes multiple magnet rings (711-720) and a frame. The multiple magnet rings are positioned along a longitudinal axis and coaxially with the longitudinal axis, wherein at least one (712, 713, 719) of the magnet rings possesses rotational symmetry and has both a finite component of magnetization along an azimuthal (θ) coordinate, and a finite magnetization in a longitudinal-radial plane. The multiple magnet rings configured to jointly generate a magnetic field along a direction parallel to the longitudinal axis. The frame is configured to fixedly hold the multiple magnet rings in place.

A method for making an adsorption device includes: providing and etching a substrate to form a plurality of receiving grooves spaced apart from each other; forming a magnetic film in each of the plurality of receiving grooves; and forming a magnet in each of the plurality of receiving grooves. Each receiving groove includes a bottom wall and a side wall coupling the bottom wall. The magnetic film covers the bottom wall and the side wall of each of receiving groove.

An electronic device in a wireless power system may be operable with a removable accessory such as a case. The device may have coplanar power transmitting and power receiving coils. The transmitting coil may be positioned within a central opening of the receiving coil. The removable accessory may have an embedded receiving coil configured to receive wireless power from the transmitting coil of the electronic device. The receiving coil of the electronic device may receive wireless power from a power transmitting device such as charging mat. The receiving coil of the electronic device may operate up to a higher maximum power than the transmitting coil of the electronic device. The power transmitting coil and power receiving coil in the electronic device may operate at different power transmission frequencies. To mitigate crosstalk, the power transmitting coil's operation frequency may be a non-integer multiple of the power receiving coil's operation frequency.

A wafer coating device and a face-down type wafer carrying assembly thereof are provided. The face-down type wafer carrying assembly includes a magnetic force generating module, a temperature control module, and a magnetizable module. The temperature control module is adjacent to the magnetic force generating module. The magnetizable module is disposed on the temperature control module. The magnetizable module includes a high-temperature magnetizable metal plate disposed on the temperature control module. When at least one wafer is temporarily adhered to the adhesive bottom surface of the high-temperature adhesive layer, a prepared surface of the at least one wafer can face downwardly by adhering of the adhesive bottom surface of the high-temperature adhesive layer, so that the face-down type wafer carrying assembly can be applied to solve the problem that the prepared surface of the wafer would be dirtied by falling particles due to gravity.

A transport tray includes a carrier, a base plate, and a fixing member. The carrier is used to hold products. The base plate is provided with a groove. The carrier is received in the groove. The base plate and the fixing member are magnetic. At least a portion of the carrier is located between the base plate and the fixing member.

A device in a wireless power system may be operable with a removable accessory such as a case. The device may transmit or receive wireless power through the case while the electronic device is coupled to the case. The case may have a folio shape with a front cover portion that covers the display of the electronic device. The case may have an embedded ferrimagnetic core that relays magnetic flux during wireless power transfer operations. Magnetic alignment structures in the case may position the ferrimagnetic core in the case in a high magnetic flux density region between the power transmitting device and the power receiving device. The ferrimagnetic core relays the magnetic flux between a transmitting coil in the power transmitting device and a receiving coil in the power receiving device. The ferrimagnetic core may be formed in a front portion, a sidewall, or a rear wall of a case.