Metallization of ferrites through surface reduction
AssigneeLucent Technologies Inc.
InventorsSungho Jin, Henry H. Law, Thomas H. Tiefel, Te-Sung Wu
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Abstract
The present invention provides a method for metallizing a ceramic surface comprising a ferrite through a surface reduction treatment. A ceramic surface comprising a ferrite is heated. At least a portion of the ferrite is contacted with a gaseous reducing agent to create a metallic region by removing oxygen from the ferrite. The surface is cooled and, optionally, post-treated to enhance adhesion of the metallic region. Typical gaseous reducing agents are hydrogen, forming gas, and ammonia while typical ferrites are nickel-zinc ferrites and manganese-zinc ferrites. To form patterned regions, portions of the substrate are masked or portions of the reduced layer are removed.
Claims7
A ferrite device comprising:
- a ferrite substrate having a first composition including at least two metal elements in a first ratio and oxygen;
- and
- a metallized surface region integral with said ferrite substrate and having a second composition including said at least two metal elements in said first ratio but differing from said first composition with respect to oxygen, at least a portion of said metallized region being formed from at least a portion of said ferrite substrate, said metallized surface region comprising a reduced portion of the ferrite substrate.
Dependencies are inferred from the claim text.