Multilayered LC composite component and method for adjusting frequency of the same

摘要

A multilayered LC composite component (1) in which a fine adjustment to a desired frequency can be performed, includes multilayered body sheets (2a,...,2f) on which internal electrodes (3,4a,4b,5,6a,6b,7a,7b) including capacitor electrodes (5,7a,7b) and inductor electrodes (4a,4b) are stacked via dielectric layers (2a,...,2f). On surfaces of the multilayered body sheets (2a,...,2f), there are disposed a ground internal electrode (3) and input/output extraction electrodes. A trimming electrode (8g) is arranged on the multilayered body such that the trimming electrode is opposed to some of the internal electrodes (3,4a,4b,5,6a,6b,7a,7b) and is electrically connected to the ground internal electrode (3). In order to make a rough frequency adjustment, insular electrodes (8e,8f) are isolated from the trimming electrode (8g) by trimming grooves (8c,8d). Then, a coating material is filled in each of the trimming grooves (8c,8d) to make a fine adjustment.