A laminated core manufacturing method includes punching a center hole in a processing region, molding split stator piece portions adjacently in a circumferential direction, and pushing back and molding the split stator piece portions. In the molding the split stator piece portions, the split stator piece portion is extruded in parallel with the workpiece.

A coil substrate includes a stacked structure in which a plurality of structures are stacked, each of the structures including a first insulating layer and a wiring formed on the first insulating layer, which becomes a part of a spiral-shaped coil; and an insulating film that covers a surface of the stacked structure, the spiral-shaped coil being formed by connecting the wirings of the adjacent structures in series.

A magnetic assembly packaging process is described. The magnetic assembly packaging process comprises the steps of setting a first substrate and a second substrate in a jig; performing electrical connection of the magnetic component to the first substrate and the second substrate; overlaying the enclosure over the first substrate and the second substrate; overturning the preformed magnetic assembly; and injecting an insulation paste layer between the first substrate and the second substrate. Accordingly, the magnetic assembly packaging process can effectively minimize the manufacturing cost and the volume of the magnetic element through reducing the overall volume of the substrate.

Various embodiments includes a stacked open pattern inductor fabricated above a semiconductor substrate. The stacked open pattern inductor includes a plurality of parallel open conducting patterns embedded in a magnetic oxide or in an insulator and a magnetic material. A layer of magnetic material may be located above the inductor and below the inductor to confine electronic noise generated in the stacked open pattern inductor to the area occupied by the inductor. The stacked open pattern inductor may include a magnetic material directly contacts one of the conducting patterns and the substrate. The stacked open pattern inductor may be fabricated using conventional integrated circuit manufacturing processes, and the inductor may be used in connection with computer systems.

There is provided a magnetic core having both high strength and high resistivity, a coil component produced with such a magnetic core, and a magnetic core manufacturing method capable of easily manufacturing a magnetic core with high strength and high resistivity. The present invention provides a method for manufacturing a magnetic core having a structure including dispersed Fe-based soft magnetic alloy particles, the method including: a first step including mixing a first Fe-based soft magnetic alloy powder containing Al and Cr, a second Fe-based soft magnetic alloy powder containing Cr and Si, and a binder; a second step including pressing the mixture obtained after the first step; and a third step including heat-treating the compact obtained after the second step, wherein the heat treatment forms an oxide layer on the surface of Fe-based soft magnetic alloy particles and bonds the Fe-based soft magnetic alloy particles together through the oxide layer.

A method for making a magnetic assembly comprises the following steps: twisting a first to eighth magnetic wires to form a bundle of wires having a first end and an opposite second end; providing a magnetic core; winding the bundle of magnetic wires around the magnetic core; sorting the first end and the second end of the bundle of wires to form individual first ends and individual second ends of the first to eighth wires; picking out the second ends of the first wire and the second wire, and the first ends of the third wire and the fourth wire to form a center tap of a primary coil of a transformer; and picking out the second ends of the fifth wire and the sixth wire, and the first ends of the seventh wire and the eighth wire to form a center tap of a secondary coil of the transformer.

An armature assembly apparatus for assembling an armature of an electrical machine is provided. The armature assembly apparatus has an armature holding apparatus to hold a partially assembled armature such that a rotation axis of the armature is horizontal. The armature assembly apparatus has a rotating device for rotating the partially assembled armature about a rotation axis. The armature assembly apparatus also has a ring segment conveyance for conveying an armature ring segment to a mounting position relative to a free ring segment portion of the partially assembled armature.

A method of manufacturing a personalized radio frequency (RF) coil array for magnetic resonance (MR) imaging guided interventions includes: acquiring diagnostic image data reflecting the anatomy of a portion of a patient's body; planning an intervention on the basis of the diagnostic image data, wherein a field of the intervention within the patient's body portion is determined; and arranging one or more RF coils on a substrate which is adapted to the patient's anatomy, in such a manner that the signal-to-noise ratio of MR signal acquisition via the one or more RF coils from the field of the intervention is optimized.