The invention provides an
inductance coil and a
laser-
cutting manufacturing method of the
inductance coil. The
inductance coil comprises an upper
copper foil coil, a lower
copper foil coil, a heat-resistant organic thin film and magnetic material
layers, wherein the outer surface of the upper
copper foil coil and the outer surface of the lower
copper foil coil are provided with insulating coatings for insulating treatment, the heat-resistant organic thin film is arranged between the upper
copper foil coil and the lower
copper foil coil, and the magnetic material
layers wrap the periphery of the upper copper foil coil and the periphery of the lower copper foil coil. Coil patterns of the upper copper foil coil and the lower copper foil coil are formed through
cutting by a
laser light source. The insulating coatings are heat-resistant coatings. The magnetic material
layers are formed through
compression molding, and a magnetic material is
iron metal alloy soft
magnetic powder. The
laser-
cutting manufacturing method comprises
laser cutting on the upper copper foil coil, the lower copper foil coil and the heat-resistant organic thin film. The inductance coil is formed by copper foil in a laser-cutting mode, parameters including
line width, thickness, distance between lines, coil center pillars and the like can be adjusted to form the coil patterns on normal positions, and target characteristic specifications can be designed quite easily. The inductance coil and the laser-cutting manufacturing method of the inductance coil overcome the shortcomings that an existing inductance coil is difficult to fix and loses
efficacy in an open circuit and a
short circuit, and end electrodes are difficult to design, and better accord with the development tendency that a power
inductor is small, thin and low in cost.