Patent ID: 8228662
Filing Date: 2012-07-24
Classification: H01G,Y10T

Abstract:
1. A feedthrough capacitor comprising: a capacitor element body consisting of a stack of dielectric layers; a signal internal electrode layer and a ground internal electrode layer alternately arranged in the capacitor element body; terminal electrodes disposed on respective first end faces opposed to each other in the capacitor element body and electrically connected to each other by the signal internal electrode layer; and ground electrodes disposed on respective second end faces opposed to each other in a direction different from an opposed direction of the first end faces in the capacitor element body and electrically connected to each other by the ground internal electrode layer, wherein the ground internal electrode layer has a first opposed portion opposed to the signal internal electrode layer and formed in a rectangular pattern, when viewed from a direction of the stack of dielectric layers, and first lead portions lead from the first opposed portion to the ground electrodes, widths of the first lead portions of the ground internal electrode layer are smaller than a width of the first opposed portion of the ground internal electrode layer, the signal internal electrode layer has a second opposed portion opposed to the first opposed portion of the ground internal electrode layer, when viewed from the direction of the stack of dielectric layers, and second lead portions lead from the second opposed portion to the terminal electrodes, and projections projecting from the second opposed portion toward the ground electrodes and opposed to the first lead portions, when viewed from a direction of the stack of dielectric layers.