LC PARALLEL RESONANCE CIRCUIT, MULTILAYER SUBSTRATE INCORPORATING LC PARALLEL RESONANCE CIRCUIT, AND THEIR MANUFACTURING PROCESS

摘要

PROBLEM TO BE SOLVED: To provide a small LC resonance circuit in which self-resonant frequency can be set easily and the number of turns can be set substantially arbitrarily while reducing noise, and to provide its manufacturing process. SOLUTION: The LC resonance circuit comprises a coil formed integrally with a multilayer substrate and including a winding part parallel with the multilayer substrate and a winding part perpendicular to the multilayer substrate, a capacitor formed integrally with the multilayer substrate and connected electrically in parallel with the coil. The coil and the capacitor are supported in the multilayer substrate, unit winding of the coil has a spiral pattern in the direction reverse to that of other adjacent unit winding when viewed from the same direction wherein a set of adjacent unit windings of the coil are interconnected at the forward ends or the ends of the spiral pattern. COPYRIGHT: (C)2006,JPO&NCIPI