Wireless Charging Devices Having Wireless Charging Coils and Methods of Manufacture Thereof

A method of charging an electronic device, the method comprising:

• providing a wireless charging device, the wireless charging device comprising:
• a controller;
• a molding material disposed around the controller, the molding material comprising a first surface level with a first surface of the controller, the molding material further comprising a second surface opposite the first surface of the molding material, the second surface of the molding material being level with a second surface of the controller;
• an interconnect structure disposed over the molding material and the controller;
• and
• a wireless charging coil coupled to the controller, the wireless charging coil being disposed in the interconnect structure and the molding material, the wireless charging coil extending through the molding material from the first surface of the molding material to the second surface of the molding material;
• placing the wireless charging device proximate the electronic device;
• and
• powering on the wireless charging device, wherein powering on the wireless charging device generates an inductance to charge the electronic device.

A semiconductor device comprising:

• a controller;
• a molding material surrounding the controller, wherein a first surface of the molding material is level with a first surface of the controller;
• a first interconnect structure over the first surface of the molding material and the first surface of the controller, the first interconnect structure comprising:
• a wireless charging coil;
• a first conductive line extending from a first end of the wireless charging coil to a first contact pad of the controller;
• and
• a second conductive line extending from a second end of the wireless charging coil to a second contact pad of the controller;
• and
• a glass material in the molding material, the wireless charging coil encircling the glass material in a plan view.