Patent ID: 6292084
Filing Date: 2001-09-18
Classification: H01F

Abstract:
A fine inductor having a 3-dimensional coil structures comprising:an insulating layer on a substrate having a groove;a plurality of first conductive patterns wherein each of the first conductive patterns is formed in the groove of the insulation layer by a photo-masking process and a metal deposition process, each of the first conductive patterns covers a bottom surface and both walls of the groove, both ends of the respective first conductive patterns are extended over an upper surface of both sides of the groove, and each of the first conductive patterns is disposed at a predetermined space between adjacent first conductive patterns; anda plurality of second conductive patterns wherein each of the second conductive patterns is formed on the insulation layer by the photo-masking process and the metal deposition process after the first conductive patterns are formed in the groove of the insulation layer, one end of the respective second conductive patterns are connected to one end of the first conductive patterns extended over an upper surface and the other end of the respective second conductive patterns are connected to the other end of the respective adjacent first conductive patterns extended over the upper surface, thereby forming a coil structure together with the first conductive patterns.