COIL TYPE UNIT FOR WIRELESS POWER TRANSMISSION AND MANUFACTURING METHOD OF COIL TYPE UNIT FOR WIRELESS POWER TRANSMISSION

摘要

The present invention relates to a coil type unit for wireless power transmission and a method of manufacturing the coil type unit for wireless power transmission. To minimize a thickness to be slim and to improve wireless power transmission efficiency, the coil type unit includes a coil substrate having a coil pattern; and a magnetic layer which is located on the lower surface of the coil substrate and is divided into a first magnetic layer and a second magnetic layer. The second magnetic layer is a sintered material on which at least one magnetic sheet is stacked. The first magnetic layer is interposed between the second magnetic layer and the coil substrate and is made of a sintered material integrated with the second magnetic layer.