Patent ID: 7843703

Claim:
A multilayer printed circuit board having a plurality of wiring layers and an electronic component mounted thereon, comprising: a spiral wire including a unicursal path in a substantial spiral shape configured with a printed wire section of a substantial loop shape provided on each of at least two wiring layers of the plurality of wiring layers and provided along a circumference of the wiring layer, a first plug provided on each wiring layer arranged between a top wiring layer which is a wiring layer on a top on which the printed wire section of a substantial loop shape is provided and a bottom wiring layer which is a wiring layer on a bottom on which the printed wire section of a substantial loop shape is provided, and a second plug that connects the printed wire section of a loop shape on the top wiring layer directly to the printed wiring layer of a loop shape on the bottom wiring layer; and a resistance element which is inserted in the printed wire section of a substantial loop shape.