3D conductive ink printing method and inductor formed thereof
Abstract:
Methods of forming an inductor using dry processes are described. A cavity is laser drilled in an insulator. A first magnetic material layer is printed in the cavity. An Ag conductive ink is printed on the first magnetic material layer and a second magnetic material layer printed on the ink. The ink has a trace sandwiched between the first and second magnetic material layers that provides a majority of the inductance of the inductor. A protective insulating layer protects the second magnetic material layer from a wet chemistry solution when contacts are formed to the ink. The second magnetic material layer and ink are deposited in or on the cavity.
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