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US 2026/0188552 A1Published application
Laminate Transformer with Overlapping Lead Frame
AssigneeTexas Instruments Incorporated
InventorsDongbin Hou, Zhemin Zhang
Life of this patent
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Abstract
An apparatus has a laminate substrate that has a first surface and a second surface opposing the first surface. A laminate transformer is located within the laminate substrate and between the first surface and the second surface. The transformer has a first coil and a second coil. A magnetic core element on the first surface overlaps a portion of the first coil. A lead frame on the first surface is spaced apart from the magnetic core element. A portion of the lead frame overlaps a portion of the first coil to provide a thermal conductive path.
Claims20
An apparatus comprising:
- a laminate substrate having a first surface and a second surface opposing the first surface;
- a transformer within the laminate substrate and between the first surface and the second surface, the transformer having a first coil and a second coil that at least partially overlap, wherein the first coil is between the first surface and the second coil;
- a magnetic core element on the first surface and overlapping at least a portion of at least one of the first coil or the second coil;
- and
- a first lead frame on the first surface and overlapping at least partially with the first coil and spaced apart from the magnetic core element, wherein the first lead frame is configured to conduct heat away from the first coil via the overlapping between the first lead frame and the first coil.
2 more elements
An apparatus comprising:
- a laminate substrate having a first surface and a second surface opposing the first surface;
- a transformer within the laminate substrate and between the first surface and the second surface, the transformer having a first coil and a second coil that at least partially overlap;
- a magnetic core element on the first surface and overlapping at least a portion of the first coil;
- a first lead frame on the first surface and overlapping at least partially with the first coil and spaced apart from the magnetic core element;
- a second lead frame on and overlapping at least partially with the first surface, the second lead frame being outside a footprint of the second coil;
- and
- mold material encapsulating the laminate substrate, magnetic core element, a portion of the first lead frame, and a portion of the second lead frame, the mold material isolating the magnetic core element from the first and second lead frames.
4 more elements
Dependencies are inferred from the claim text.