Patent ID: 9655249
Date: 2017-05-16
CPC Classifications: H01G,H01L,H05K,Y10T

Claim:
1. A substrate with a built-in capacitor, comprising: an insulating base material layer; a build-up layer formed on the insulating base material layer and comprising a conductor layer and an insulating layer; and a multilayer ceramic capacitor positioned in an opening portion of the insulating base material layer and comprising a plurality of internal electrodes, a plurality of ceramic dielectric layers and a pair of external electrodes, wherein the multilayer ceramic capacitor has a cuboid shape having long sides and short sides, the pair of external electrodes is formed on opposing long-side sides such that the external electrodes are separated by a distance in a range of 30 μm to 200 μm and that each of the external electrodes comprises a conductive paste layer connected to a respective group of the internal electrodes and a copper plated layer covering the conductive paste layer, the conductive paste layer comprises one of a Ni paste and a Cu paste including a glass component in a range of 5% to 40%, and the build-up layer has a plurality of first via conductors and a plurality of second via conductors such that the first via conductors are connected to one of the external electrodes of the multilayer ceramic capacitor and the second via conductors are connected to the other one of the external electrodes of the multilayer ceramic capacitor.