Method and apparatus for components with a reduced average roughness
OwnerJohn Othniel McDonaldinventor
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Abstract
In an exemplary embodiment of the present invention: A series of U-shaped nickel-iron components are plated onto a rough or roughened semiconductor package or printed circuit board material. The horizontal base of the U-shaped component has a surface roughness of the semiconductor package material. The vertical surfaces of the U-shape have a surface roughness derived from the dry film. The large smooth vertical surface allows the U-shaped nickel-iron components to have a low average roughness. The lowered average roughness reduces the path length the U-shaped nickel-iron components provide for magnetic flux while the roughness of the horizontal portion of the U-shape allows for increased mechanical bonding to occur.
Claims9
A component material layer stack, comprising:
- a magnetic core material with a U-shape cross-section, a portion of an outer surface of the magnetic core material with a U-shape cross-section having a rough contoured surface, the rough contoured surface of the magnetic core material operably bonded to a roughened portion of a base layer.
Dependencies are inferred from the claim text.