Patent ID: 7317165
Filing Date: 2008-01-08
Classification: H01L,H05K,Y02P

Abstract:
1. An intermediate substrate comprising: an intermediate substrate body containing an insulating material, and having a first face to be mounted with a semiconductor element and a second face opposing to said first face; and a semiconductor element mounting area including a plurality of first face terminals arranged on said first face, and being surrounded by an outermost periphery of said plurality of first face terminals, wherein a center of said semiconductor element mounting area is eccentric with respect to a center of said first face; wherein said center of said semiconductor element mounting area is positioned on a line extending through said center of said first face and parallel to at least one of sides defining said first face, and is offset from a center of said first face; wherein, of widths of four planes which are formed around said semiconductor element mounting area and which are formed between four sides to form said semiconductor element and corresponding four sides to form said first face, a width of a plane for applying a resin filler to fill between a semiconductor element to be mounted and said intermediate substrate body is made larger than widths of remaining three planes adjacent and opposed to said plane; and wherein the widths of the remaining three planes are each 2 mm or less.