Patent ID: 7423884

Claim:
A multilayer circuit board, comprising: two or more layers of electrical insulative base members; and two or more layers of conductive patterned layers, wherein each of the conductive patterned layer is disposed on at least one selected from: a outer surface of one of the electrical insulative base members that is an outermost layer; and an interface between the respective electrical insulative base members; wherein, at least two of the conductive patterned layers comprise coil patterns that will be a part of a coil, through holes are provided at predetermined positions of the electrical insulative base member, the positions being sandwiched between the coil patterns, so as to enable communication between respective end portions of the coil patterns; wherein conductive paste charged in the through holes allows electrical connection to be established between the respective end portions, whereby the coil is formed so as to be wound in a direction perpendicular to a thickness direction of the multilayer circuit board; wherein the electrical insulative base members contain a thermosetting resin and have been cured by application of heat and pressure; and wherein the two or more layers of electrical insulative base members and the two or more layers of conductive patterned layers that comprise the multilayer circuit board with the coil therein further comprise one or more components to be packaged on at least one of the two or more layers of conductive patterned layers.