VARIABLE INDUCTANCE ELEMENT, MULTILAYER SUBSTRATE INCORPORATING VARIABLE INDUCTANCE ELEMENT, SEMICONDUCTOR CHIP AND CHIP TYPE VARIABLE INDUCTANCE ELEMENT

摘要

PROBLEM TO BE SOLVED: To provide a small variable inductance element formed in a multilayer substrate in which the number of turns of a coil and the forming direction thereof can be altered freely in the same process, and characteristics such as self-inductance can be regulated freely at the time of use. SOLUTION: The variable inductance element comprises a coil formed integrally with a multilayer substrate and including a winding parallel with the multilayer substrate and a winding perpendicular thereto where a coil plane formed by its unit winding is perpendicular to the multilayer substrate, and two or more electrodes formed on the outer surface on one side of the multilayer substrate and connected with predetermined parts of the coil, respectively. The coils are supported in the multilayer substrate, and at least one electrode is extended to a position facing at least one of other electrodes through a gap. COPYRIGHT: (C)2006,JPO&NCIPI