Patent ID: 7764149
Filing Date: 2010-07-27
Classification: H01L,H01P,H01Q,H05K

Abstract:
1. An electromagnetic bandgap structure, comprising: a first metal layer; a first dielectric layer, stacked on the first metal layer; a first metal plate, stacked on the first dielectric layer; a first via, connecting the first metal layer to the first metal plate; a second dielectric layer, stacked on the first metal plate and the first dielectric layer; a second metal layer, stacked on the second dielectric layer and having a hole formed at a predetermined position; a third dielectric layer, stacked on the second metal layer; a second metal plate, stacked on the third dielectric layer; and a second via, penetrating the hole formed in the second metal layer and connecting the first metal plate and the second metal plate, wherein the first metal layer is any one of a ground layer and a power layer, and the second metal layer is the other.