Integrated circuits may be assembled by placing a batch of integrated circuit (IC) die on a leadframe. Each of the IC die includes a magnetically responsive structure that may be an inherent part of the IC die or may be explicitly added. The IC die are then agitated to cause the IC die to move around on the leadframe. The IC die are captured in specific locations on the leadframe by an array of magnetic domains that produce a magnetic response from the plurality of IC die. The magnetic domains may be formed on the lead frame, or may be provided by a magnetic chuck positioned adjacent the leadframe.

There is provided an electromagnet control apparatus that continuously attracts crushed pieces of metals with the core of a magnetized electromagnet without immediately releasing the attracted pieces in a composite operation of a construction machine. The electromagnet control apparatus includes a control unit that controls a demagnetized state, a magnetized state, or a counter-magnetized state of an electromagnet. Until the end of a first threshold time t.sub.th1 from a transition to the demagnetized state from the magnetized state, the control unit ignores a turn-on voltage for turning on first transistors (a first transistor, a fourth transistor) and turns on the first transistors after a lapse of a second threshold time that is shorter than the first threshold time. The demagnetized state and the magnetized state are repeated until the end of the first threshold time t.sub.th1 from the transition to the demagnetized state.

An omnidirectional electromagnet (100) is disclosed. The omnidirectional electromagnet (100) comprises a ferromagnetic core (110) and three orthogonal solenoids (120, 130, 140) disposed about the core (110). Each solenoid (120, 130, 140) is adapted to receive a current from a current source to control an orientation and a magnitude of a magnetic field generated by the omnidirectional electromagnet (100). One or more omnidirectional electromagnets (100) can be used as a single magnetic manipulation system. The magnetic field generated by the omnidirectional electromagnet system can be used to control at least one of a force, a torque, an orientation, and a position of an adjacent magnetic object.

An electromagnetic lifter for moving hot materials includes a ferromagnetic yoke formed by a horizontal core and two vertical polarities, coils wound around the core and enclosed in a container, a non-magnetic baffle arranged between the vertical polarities and below the container at a distance of at least 40 mm to protect the container from heat radiated by the hot material. The electromagnetic lifter also includes a first space between the container and the plurality of vertical polarities that maintains a first predetermined distance between the container and the plurality of vertical polarities, a second space between the container and the core that maintains a second predetermined distance between the container and the core, and a third space between the container and the non-magnetic baffle that allows a convective flow of air. The electromagnetic lifter also includes side spacers disposed in the first space and top spacers disposed in the second space.

An embodiment of the invention relates to a device for detecting an analyte in a sample. The device comprises a fluidic network and an integrated circuitry component. The fluidic network comprises a sample zone, a cleaning zone and a detection zone. The fluidic network contains a magnetic particle and/or a signal particle. A sample containing an analyte is introduced, and the analyte interacts with the magnetic particle and/or the signal particle through affinity agents. A microcoil array or a mechanically movable permanent magnet is functionally coupled to the fluidic network, which are activatable to generate a magnetic field within a portion of the fluidic network, and move the magnetic particle from the sample zone to the detection zone. A detection element is present which detects optical or electrical signals from the signal particle, thus indicating the presence of the analyte.

The present application provides a machine cleaning device. The machine cleaning device includes: a guide rail arranged next to a carrying platform of the machine main body, a support slidably mounted on the guide rail, a cleaning component mounted on the support, a driving device connected to the support in a transmission way, and a controller connected to the driving device; and when the cleaning component cleans the top surface of the machine main body, the controller controls the driving device to drive the support to move along the guide rail, so as to drive the cleaning component to clean the top surface of the machine main body in a direction away from the carrying platform. So that unexpected particles are reduced to fall on the carrying platform and contaminate the carrying platform during the cleaning process.

A tool for selectively engaging and disengaging one or more magnetic connectors to secure a panel. The tool includes a frame with one or more magnets. The magnets provide a magnetic flux to control the magnetic connectors. In use, the tool is positioned on a first side of the panel with the one or more connectors on the opposing second side. The magnetic flux from the one or more magnets controls the positioning of the connectors between engaged and disengaged positions.

An electromagnetic guide assembly, an elevator and a control method thereof. The electromagnetic guide assembly includes a first magnetic element for connecting to an elevator car and a second magnetic element for connecting to an elevator liftway; wherein the electromagnetic guide assembly comprises two states. In a first state, the first magnetic element and the second magnetic element abut against each other; and in a second state, the first magnetic element and the second magnetic element are separated from each other, and the first magnetic element and the second magnetic element are capable of generating a relative movement along the longitudinal direction of the elevator liftway.

The present disclosure provides a gluing device, a gluing method and a colloid for packaging devices. The gluing device includes an instillation head configured to guide a glue added with magnetic material in an instillation direction; and a magnetic field generation mechanism configured to apply a magnetic field within the instillation head, so as to apply a force to the magnetic material through the magnetic field in a direction identical to or opposite to the instillation direction. Thus a flow rate of the glue in the instillation direction is controlled through the force applied by the magnetic material to the glue. The glue in the gluing device may be smoothly dripped out at a constant flow rate, thereby to prevent the occurrence of discontinuous or thin glue lines in the related art due to an insufficient pressure during gluing.

A magnetic transfer module adapted to transfer a plurality of electronic elements. The magnetic transfer module includes an electromagnet and a plurality of transfer unit. The transfer units are connected to the electromagnet, each of the transfer units includes a ferromagnetic material element, and at least one of the transfer units includes a heating element. The electromagnet magnetizes the ferromagnetic material element, such that the ferromagnetic material element magnetically attracts one of the electronic elements. The heating element is disposed between the electromagnet and the ferromagnetic material element, and heats the ferromagnetic material element to demagnetize the ferromagnetic material element while being actuated.