Thin film coil and electronic device having the same
First Claim
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1. A coil substrate provided in a wireless power transmitter, wirelessly transmitting power, or in a wireless power receiver, wirelessly receiving power, the coil substrate comprising:
- a substrate having a first surface and a second surface;
a first spiral pattern disposed on the first surface of the substrate, and having a partially disconnected spiral shape;
a second spiral pattern disposed on the second surface of the substrate, and having both ends electrically connected to the first spiral pattern; and
a lead-out pattern having an end connected to the first spiral pattern, and disposed on the first surface of the substrate to traverse a disconnected portion of the first spiral pattern from an inside of the first spiral pattern to an outside of the first spiral pattern,wherein electrical connection of the first spiral pattern is maintained across the disconnected portion by a plurality of first vias that penetrate through the substrate to electrically connect to the second spiral pattern,wherein a portion of the coil substrate, outside of the disconnected portion, includes the first spiral pattern overlapping the second spiral pattern and electrically insulated therebetween by the substrate.
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Abstract
There are provided a thin film coil and an electronic device having the same, the thin film coil including a substrate; and a coil pattern including a first coil strand and a second coil strand formed on both surfaces of the substrate, respectively, wherein the first coil strand formed on one surface of the substrate includes at least one gyration path that passes through the other surface of the substrate and gyrates.
61 Citations
16 Claims
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1. A coil substrate provided in a wireless power transmitter, wirelessly transmitting power, or in a wireless power receiver, wirelessly receiving power, the coil substrate comprising:
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a substrate having a first surface and a second surface; a first spiral pattern disposed on the first surface of the substrate, and having a partially disconnected spiral shape; a second spiral pattern disposed on the second surface of the substrate, and having both ends electrically connected to the first spiral pattern; and a lead-out pattern having an end connected to the first spiral pattern, and disposed on the first surface of the substrate to traverse a disconnected portion of the first spiral pattern from an inside of the first spiral pattern to an outside of the first spiral pattern, wherein electrical connection of the first spiral pattern is maintained across the disconnected portion by a plurality of first vias that penetrate through the substrate to electrically connect to the second spiral pattern, wherein a portion of the coil substrate, outside of the disconnected portion, includes the first spiral pattern overlapping the second spiral pattern and electrically insulated therebetween by the substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification