Magnetic components and their production
AssigneeNational University of Ireland, Cork
InventorsStephen O'Reilly, Maeve Duffy, Terence O'Donnell, Sean Cian O'Mathuna
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Abstract
A magnetic component (20) has conductor windings (22a, 22b) surrounded by insulation (21). In addition, the component (20) has a magnetic plate (23a, 23b) on each side. This is applied using conventional PCB process techniques. The magnetic plates enhance the inductance of the component in a manner which may be controlled by setting the configuration of the plates. For example a plate may have a number of isolated sections. Also, the plates on each side may be interconnected by plated through holes to provide a closed core.
Claims25
A magnetic component comprising:
- a planar conductor shaped according to a component winding pattern;
- an insulating layer over the planar conductor;
- a magnetic plate over the insulating layer;
- said magnetic plate comprises a plurality of isolated sections;
- and wherein the sections are shaped as disc sectors.
A method of producing a magnetic component, the method comprising the steps of:
- applying a planar conductor in a component winding pattern;
- applying an insulating layer over the planar conductor;
- applying a magnetic plate over the insulating layer in a pattern to set characteristics of the magnetic component;
- wherein the magnetic plate comprises a plurality of isolated sections;
- and
- wherein the sections are shaped as disc sectors.
A process for producing a multilayer printed circuit board, integrating a magnetic component into the board by performing the steps of:
- applying a planar conductor between circuit board insulating layers, the planar conductor having a component winding pattern;
- applying a magnetic plate over the insulating layers on each side of the planar conductor in a pattern to set characteristics of the magnetic component;
- and
- interconnecting the magnetic plates with through holes plated with magnetic material, the plated through holes extending through the insulating layers and being isolated from the planar conductor.
A multilayer circuit board comprising a plurality of insulating layers and a magnetic component comprising:
- at least one planar conductor having a component winding pattern and being isolated by circuit board insulating layers;
- and
- magnetic plates on each side of the planar conductor and being isolated from the planar conductor by circuit board insulating layers, the magnetic plates being interconnected by through holes which are plated with magnetic material extend through the insulating layers.
Dependencies are inferred from the claim text.