Wiring board with built-in capacitor

摘要

A wiring board with built-in capacitors includes a core substrate, and a high dielectric sheet including a lower electrode layer, an upper electrode layer and a dielectric layer, the dielectric layer made of a sintered ceramic body and sandwiched between the lower electrode layer and the upper electrode layer, the lower electrode layer and/or the upper electrode layer being partitioned into multiple electrodes such that the high dielectric sheet has multiple capacitors. The lower electrode layer and/or the upper electrode layer is connected to a ground line and the other one of the lower electrode layer and the upper electrode layer is connected to a power line such that the capacitors are electrically connected in parallel.

主权项

1. A wiring board with built-in capacitors, comprising:
a core substrate; and a high dielectric sheet positioned on the core substrate and comprising a lower electrode layer, an upper electrode layer and a dielectric layer, the dielectric layer comprising a single sintered ceramic body in a form of a single film and sandwiched between the lower electrode layer and the upper electrode layer, at least one of the lower electrode layer and the upper electrode layer being partitioned into a plurality of electrodes such that the high dielectric sheet has a plurality of capacitors, wherein one of the lower electrode layer and the upper electrode layer is connected to a ground line and the other one of the lower electrode layer and the upper electrode layer is connected to a power line such that the capacitors are electrically connected in parallel.