Embedded inductor structure and manufacturing method thereof

An embedded inductor structure, comprising:

• an aluminum board, having a first surface, a second surface opposite to the first surface, and multiple through vias in communication with the first surface and the second surface;
• an electromagnet core, mounted on the first surface of the aluminum board;
• wherein the through vias are located on two opposite sides of the electromagnet core;
• a coil, mounted through the through vias to wrap around the electromagnet core;
• wherein an inside wall of each of the through vias forms an anodic aluminum oxide (AAO) formed by an anodizing process;
• wherein the first surface and the second surface of the aluminum board respectively form an anodic aluminum oxide layer;
• wherein the electromagnet core is mounted on the anodic aluminum oxide layer on the first surface;
• wherein the anodic aluminum oxide layer on the first surface, the anodic aluminum oxide layer on the second surface, and the AAO formed inside the through vias completely cover the aluminum board.