Transformer structure, manufacturing method and integrated circuit
AssigneeSilergy Semiconductor Technology (Hangzhou) LTD
InventorsKe Dai, Jian Wei, Jiajia Yan
Life of this patent
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Abstract
A transformer structure can include: a substrate encapsulating at least two windings that are isolated from each other, where each winding includes a coil body and lead-out terminals coupled to the coil body; and a magnetic encapsulation body encapsulating at least one side of the substrate, where the magnetic encapsulation body includes an insulating main material and magnetic particles dispersed in the insulating main material.
Claims25
A transformer structure, comprising:
- a substrate encapsulating at least two windings, each of which comprising an coil body and lead-out terminals coupled to the coil body;
- and
- a magnetic encapsulation body encapsulating at least one side of the substrate;
- wherein the windings are isolated from each other;
- the magnetic encapsulation body comprises an insulating main material and magnetic particles dispersed in the main material.
A manufacturing method for a transformer structure, comprising:
- forming a substrate comprising at least two windings, wherein each winding comprises a coil body and a lead-out terminal coupled to the coil body;
- and
- encapsulating at least one side of the substrate by a magnetic encapsulation body;
- wherein the windings are formed by a corresponding electroplating process in sequence, after one winding is formed, the winding is encapsulated to form the magnetic encapsulation body;
- the windings are isolated from each other;
- and the magnetic encapsulation body comprises an insulating main material and magnetic particles dispersed in the main material.
A manufacturing method for a transformer structure, comprising:
- manufacturing two magnetic units comprising at least one winding;
- wherein each winding comprises a coil body and a lead-out terminal coupled to the coil body;
- wherein two magnetic units are stacked back to back;
- and
- the manufacturing magnetic unit comprises:
- forming the winding by electroplating process;
- encapsulating the winding to form a substrate comprising at least one winding;
- and
- encapsulating one side of the substrate by a magnetic encapsulation body;
- wherein the magnetic encapsulation body comprises an insulating main material and magnetic particles dispersed in the main material.
Dependencies are inferred from the claim text.