Interlayer structure with multiple insulative layers with different frequency characteristics
AssigneeNEC Corporation
InventorMizuki Iwanami
Life of this patent
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Abstract
An inter-layer structure between a power layer and a ground layer of a printed circuit board includes an insulative magnetic structure with at least two layers of insulative magnetic substances with different complex magnetic permeability frequency characteristics.
Claims8
An inter-layer structure between a power layer and a ground layer, said inter-layer structure comprising a dielectric layered structure which comprises at least two dielectric substances which are different in frequency characteristic of complex dielectric constant.
A multilayer printed circuit board having at least a signal layer, at least a power layer, at least a ground layer, and an inter-layer structure between said power layer and said ground layer,
- wherein said inter-layer structure comprises a dielectric layered structure which comprises at least two dielectric substances which are different in frequency characteristic of complex dielectric constant.
Dependencies are inferred from the claim text.