Coilcraft, Incorporated

Scott D Hess

Lawrence B Lestarge

Andrzej Klesyk

Andrew Klesyk

Matt Goedken

Hyeonchul Park

Richard D Rehak

Nelson Garcia

Catalin Constantin Girbachi

Chris Caramela

Electronic component portion

An electronic component includes a wire winding wound around a central axis. The wire winding having first and second ends, and first and second terminals are connected to or formed by the first and second ends. The terminals provide electrical contacts for connecting the component into a circuit. The component has a wet press molded body made of a mixture of magnetic and non-magnetic material that is heated and pressed about the wire winding. The wet press molded body leaves at least a portion of the terminals exposed for mounting the component to the circuit.

Method of manufacturing an electronic component

Electronic component

A method of manufacturing an electronic component including providing a wire having first and second ends and a pre-formed core, winding the wire about at least a portion of the pre-formed core and connecting the first and second wire ends to at least one terminal for mounting the component to a circuit, and using a wet press process to form a mixture of magnetic and/or non-magnetic material over at least a portion of the wire and pre-formed core, and harden the mixture without exposing the wire and pre-formed core to the damaging forces of a dry press process to form an electronic component with a generally planar top surface with which the component can be picked and placed on a circuit using conventional pick-and-place equipment.

A low profile electronic component in accordance with the invention includes an elongated core made from a magnetic material such as ferrite, which is connected to a base having a plurality of metalized pads attached thereto for electrically and mechanically connecting the component to a printed circuit board. Support structures or spacers are positioned at the ends of the core and are provided to assist the core in shielding the component and concentrating its magnetic lines of flux. The component also includes a winding of wire wound about at least a portion of the base and core assembly between the supports, and has the ends of the wire electrically and mechanically connected to the metalized pads of the base. A top portion may be coupled to the core via the supports to cover at least a portion of the windings of wire of the component. The supports separate the core and the top portion and maintain the top portion at a desired position with respect to the winding and the core. The core, supports, and top portion provide a source of additional shielding for the component and improve the performance of the overall component by concentrating the lines of flux emitted by the component thereby increasing the flux density of the component and its inductance.

Surface mountable electronic component

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Crystal Lake, IL, United States of America

Scott D Hess