Patent ID: 8143716

Claim:
A semiconductor device, comprising: a first semiconductor chip; a second semiconductor chip provided on said first semiconductor chip; and a plate-shaped component formed between said first semiconductor chip and said second semiconductor chip, and said plate-shaped component including a projecting portion projecting farther outward than an outer periphery of said second semiconductor chip; wherein said first semiconductor chip includes a plurality of first electrode pads on a surface thereof facing said plate-shaped component, wherein said second semiconductor chip includes a plurality of second electrode pads and a third electrode pad on a surface thereof facing said plate-shaped component, wherein said plate-shaped component includes a plurality of through electrodes for connecting said first electrode pads and said second electrode pads, a fourth electrode pad formed on a surface of said projecting portion facing said second semiconductor chip, and an interconnect for directly connecting said third electrode pad and said fourth electrode pad, wherein said third electrode pad and said fourth electrode pad are connected to each other via only said interconnect, wherein said first electrode pads, said second electrode pads, and said through electrodes are substantially aligned along a single straight line, and wherein said interconnect is separated from each of said through electrodes.