Patent ID: 6924562
Filing Date: 2005-08-02
Classification: H01L,Y10S

Abstract:
1. A semiconductor integrated circuit comprising: a semiconductor package having a printed circuit board, a semiconductor chip mounted on a first surface of said printed circuit board, at least one power supply electrode on a second surface of said printed circuit board and connected to at least one power supply terminal of said semiconductor chip, and at least one ground electrode on said second surface of said printed circuit board and connected to at least one ground terminal of said semiconductor chip; a decoupling capacitor disposed outside said semiconductor package and formed by a power supply plane connected to said at least one power supply electrode, and a ground plane connected to said at least one ground electrodes; at least one power supply electrode pad connected to said power supply plane; and at least one ground electrode pad connected to said ground plane, wherein at least one of said power supply plane and said ground plane is divided into a plurality of parts which are insulated from one another.