Magnetic device, power conversion module and manufacturing method of magnetic device

A manufacturing process of a magnetic device, the manufacturing process comprising steps of:

• (a) providing a first conductive structure and a second conductive structure, wherein the first conductive structure comprises a first connection part, a first conductive body and a second connection part, and the first conductive body is connected between the first connection part and the second connection part, wherein the second conductive structure comprises a third connection part, a second conductive body and a fourth connection part, and the second conductive body is connected between the third connection part and the fourth connection part;
• (b) providing a powder magnetic material, and laminating the powder magnetic material, the first conductive structure and the second conductive structure together to form a first surface, a second surface, a third surface, a fourth surface, a fifth surface and a sixth surface of the magnetic device, wherein the first conductive structure and the second conductive structure are embedded in the powder magnetic material, wherein the first surface and the third surface are opposed to each other, the second surface and the fourth surface are opposed to each other, and the fifth surface and the sixth surface are opposed to each other;
• (c) milling the powder magnetic material, wherein after the powder magnetic material is milled, the first connection part and the third connection part are exposed to the fifth surface of the magnetic device, the second connection part and the fourth connection part are exposed to the sixth surface of the magnetic device, the first connection part and the second connection part are exposed to any two of the first surface, the second surface, the third surface and the fourth surface of the magnetic device, and the third connection part and the fourth connection part are exposed to any two of the first surface, the second surface, the third surface and the fourth surface of the magnetic device;
• (d) forming a first electroplating structure on the fifth surface, the second surface and the sixth surface of the magnetic device, and forming a second electroplating structure on the fifth surface, the fourth surface and the sixth surface of the magnetic device.