Printed circuit board with multiple insulative magnetic layers
First Claim
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1. A structure comprising a power layer and a ground layer that sandwich an insulative structure that includes at least two insulative magnetic layers, each of said at least two insulative magnetic layers having a different complex magnetic permeability frequency characteristic.
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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.
18 Citations
16 Claims
- 1. A structure comprising a power layer and a ground layer that sandwich an insulative structure that includes at least two insulative magnetic layers, each of said at least two insulative magnetic layers having a different complex magnetic permeability frequency characteristic.
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8. A printed circuit board comprising:
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a signal layer;
a power layer;
a ground layer; and
an insulative structure between said power layer and said ground layer that includes at least two insulative magnetic layers, each of said at least two insulative magnetic layers having a different complex magnetic permeability frequency characteristic. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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Specification