Patent ID: 6501160
Filing Date: 2002-12-31
Classification: H01L,H05K,Y02P

Abstract:
A semiconductor device, comprising:a resin encapsulater; a semiconductor chip located within said resin encapsulater and having a plurality of electrodes on one main surface; a semiconductor chip loading portion disposed within said resin encapsulater and having a loaded surface for mounting said semiconductor chip thereon and an unloaded surface provided on the side opposite to the loaded surface, said unloaded surface being a surface to be soldered to a printed circuit board; and a plurality of input/output leads which are connected to said plurality of electrodes to input signals to said plurality of electrodes of said semiconductor chip or output signals from said plurality of electrodes thereof and which extend outside said resin encapsulater; and wherein the unloaded surface of said semiconductor chip loading portion comprises a plurality of regions separated from one another and said plurality of regions are exposed from said resin encapsulater to provide a plurality of soldering areas between said plurality of exposed regions of the other main surface and said printed circuit board, said plurality of soldering areas being mutually separated from one another in a plane view.