3D multipath inductor
First Claim
1. A three-dimensional multipath inductor, comprising:
- a plurality of turns disposed about a center region on at least two layers, the turns on the at least two layers having corresponding geometry therebetween;
each of the plurality of turns being comprised of two or more segments that extend length-wise along the turns, the segments having positions that vary from an innermost position relative to the center region and an outermost position relative to the center region;
at least one lateral cross-over configured to couple the segments of at least one turn on one layer with the segments on a turn on a same layer to form segment paths that have a same length for all segment paths in a grouping of segment paths on that same layer; and
at least one vertical cross-over configured to couple the segments on different vertically stacked metal layers to have the segment groups with a same length for all segment paths based on vertical lengths.
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Accused Products
Abstract
A three-dimensional multipath inductor includes turns disposed about a center region on two layers, the turns on the two layers having corresponding geometry therebetween. Each of the turns is comprised of two or more segments that extend length-wise along the turns, and the segments have positions that vary from an innermost position relative to the center region and an outermost position relative to the center region. A lateral cross-over is configured to couple the segments of at least one turn on one layer with the segments on a turn on a same layer to form segment paths that have a substantially same length for all segment paths in a grouping of segment paths on that same layer. A vertical cross-over is configured to couple the segments on different vertically stacked metal layers to have the segment groups with a substantially same length for all segment paths based on vertical lengths.
30 Citations
21 Claims
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1. A three-dimensional multipath inductor, comprising:
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a plurality of turns disposed about a center region on at least two layers, the turns on the at least two layers having corresponding geometry therebetween; each of the plurality of turns being comprised of two or more segments that extend length-wise along the turns, the segments having positions that vary from an innermost position relative to the center region and an outermost position relative to the center region; at least one lateral cross-over configured to couple the segments of at least one turn on one layer with the segments on a turn on a same layer to form segment paths that have a same length for all segment paths in a grouping of segment paths on that same layer; and at least one vertical cross-over configured to couple the segments on different vertically stacked metal layers to have the segment groups with a same length for all segment paths based on vertical lengths. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A three-dimensional multipath inductor, comprising:
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a plurality of turns disposed about a center region on at least two layers, the turns on the at least two layers having corresponding geometry therebetween; each of the plurality of turns being comprised of two or more segments that extend length-wise along the turns, the segments having positions that vary from an innermost position relative to the center region and an outermost position relative to the center region; at least one vertical cross-over configured to couple the segments on different vertically stacked metal layers to have the segment groups with a same length for all segment paths based on vertical lengths; at least one lateral cross-over configured to couple the segments of at least one turn on one layer with the segments on a turn on a same layer to form segment paths that have a same length for all segment paths in a grouping of segment paths on that same layer; and at least one connection between lateral segments to connect two or more segments in parallel on an inner side of the inductor to form a composite segment with increased conductive area. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification