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US 10,121,583 B2Granted
Coil structure and electromagnetic component using the same
AssigneeCyntec Co., Ltd.
InventorsWei-Chien Chang, Chia-Chi Wu, Lang-Yi Chiang, Tsung-Chan Wu, Jih-Hsu Yeh
Life of this patent
Estimating the term…
Abstract
An electromagnetic component including a multi-layer, spiral coil structure embedded in a molded body is disclosed. Each layer of the coil structure makes approximately one and a quarter turns of a winding. Each layer of the coil structure has a loose middle segment, two slim end segments overlapping each other with a spacing therebetween, and tapered neck segments respectively connecting the loose middle segment with the two slim end segments.
Claims18
An electromagnetic component, comprising:
- a conductive structure, comprising at least one conductive layer to form a coil, wherein a conductive layer comprises a coil pattern comprising a middle trace comprising a contiguous portion extending from a first side of the conductive layer to a second side opposite to the first side of the conductive layer, a first slim trace and a second slim trace, wherein the first slim trace comprises a first end point of the coil pattern and the second slim trace comprises a second end point of the coil pattern, and each of an inner side surface of the middle trace on the first side of the conductive layer and an inner side surface of the first slim trace on the second side of the conductive layer respectively forms a corresponding part of the innermost boundary of the coil pattern, wherein the width of the middle trace is respectively greater than that of the first slim trace and the second slim trace, wherein along the winding direction of the coil pattern, the total length of the middle trace is respectively greater than that of the first slim trace comprising said first end point of the coil pattern and the second slim trace comprising said second end point of the coil pattern, wherein a portion of an outer side surface of the first slim trace and a portion of an inner side surface of the second slim trace are placed side by side on the second side of the conductive layer for matching the width of the middle trace with a total of the width of the first slim trace, the width of the second slim trace and a spacing between said two slim traces.
An electromagnetic component, comprising:
- a conductive structure, comprising at least one conductive layer to form a coil, wherein a conductive layer comprises a coil pattern comprising a middle trace comprising a contiguous portion extending from a first side of the conductive layer to a second side opposite to the first side of the conductive layer, a first transition trace, a second transition trace, a first slim trace and a second slim trace, wherein the first slim trace comprises a first end point of the coil pattern and the second slim trace comprises a second end point of the coil pattern, and each of an inner side surface of the middle trace on the first side of the conductive layer and an inner side surface of the first slim trace on the second side of the conductive layer respectively forms a corresponding part of the innermost boundary of the coil pattern, wherein the width of the middle trace is respectively greater than that of the first slim trace and the second slim trace, wherein along the winding direction of the coil pattern, the total length of the middle trace is respectively greater than that of the first slim trace comprising said first end point of the coil pattern and the second slim trace comprising said second end point of the coil pattern, wherein a portion of an outer side surface of the first slim trace and a portion of an inner side surface of the second slim trace are placed side by side on the second side of the conductive layer, wherein the width of the first transition trace is gradually reduced to connect the middle trace to the first slim trace, and the width of the second transition trace is gradually reduced to connect the middle trace to the second slim trace.
Dependencies are inferred from the claim text.