Patent ID: 8320135
Filing Date: 2012-11-27
Classification: H01L,H05K,Y10T

Abstract:
1. A multilayer printed circuit board, comprising: a first resin-insulating layer having a concave portion; a semiconductor element placed in the concave portion and comprising a pad formed on a surface of the semiconductor element and at least one of a columnar electrode and a mediation layer formed on the pad; an electromagnetic shielding structure configured to electromagnetically shield the semiconductor element, the electromagnetic shielding structure comprising a plurality of side metals provided in the first resin-insulating layer and surrounding the concave portion; a second resin-insulating layer provided on the first resin-insulating layer and having a via hole formed therein; and a conductor circuit formed on the second resin-insulating layer and electrically connected with the pad of the semiconductor element through the via hole, wherein the plurality of side metals comprises at least one of a first metal structure, a second metal structure and a third metal structure, the first metal structure comprises a metal coating an inner wall of a plurality of non-through holes, the second metal structure comprises a metal filling a plurality of non-through holes, and the third metal structure comprises a plurality of columns comprising metal.