Abstract: A package-on-package (POP), including a semiconductor device, and a multi-chip-package located above the semiconductor device, wherein the semiconductor device includes a substrate including a first surface, a plurality of electrodes formed on the first surface, a second surface opposite to the first surface, a plurality of lands formed on the second surface, and a plurality of wirings, (a2) a semiconductor chip mounted over the first surface of the substrate, and (a3) a plurality of first solder balls formed on the lands, respectively, wherein the multi-chip-package is electrically connected with the semiconductor device via a plurality of second solder balls, wherein the plurality of second solder balls are connected with the plurality of electrodes, respectively.

Abstract: A package-on-package (POP), including a semiconductor device, and a multi-chip-package located above the semiconductor device, wherein the semiconductor device includes a substrate including a first surface, a plurality of electrodes formed on the first surface, a second surface opposite to the first surface, a plurality of lands formed on the second surface, and a plurality of wirings, (a2) a semiconductor chip mounted over the first surface of the substrate, and (a3) a plurality of first solder balls formed on the lands, respectively, wherein the multi-chip-package is electrically connected with the semiconductor device via a plurality of second solder balls, wherein the plurality of second solder balls are connected with the plurality of electrodes, respectively.

Abstract: A semiconductor device includes a substrate, a first land formed in a first surface of the substrate, a second land formed in a second surface of the substrate, a first terminal coupled to the second land, a line coupled to the first land and the second land, a second terminal formed in the second surface of the substrate and a branch line coupled to the line and the second terminal. The second terminal is coupled to the first land and the second land and is not coupled to other lands in the first surface. The second surface is different surface from the first surface.

Abstract: Provided is a semiconductor device in which a connection between connection terminals and land of the semiconductor device can be checked with the semiconductor device kept in a sound condition, the connection not being allowed to be checked with a semiconductor chip. The semiconductor device of the present invention includes: a package substrate; a semiconductor chip mounted on the package substrate; a first land formed in a first principal surface of the package substrate; a second land formed in a second principal surface of the package substrate; first connection terminals connected to the second land and having the connection thereto not allowed to be checked with the semiconductor chip; a connection interconnection for connecting the first land and the second land; a second connection terminal formed in the second principal surface of the package substrate; and a branch interconnection for connecting the connection interconnection and the second connection terminal.

Abstract: Provided is a semiconductor device in which a connection between connection terminals and land of the semiconductor device can be checked with the semiconductor device kept in a sound condition, the connection not being allowed to be checked with a semiconductor chip. The semiconductor device of the present invention includes: a package substrate; a semiconductor chip mounted on the package substrate; a first land formed in a first principal surface of the package substrate; a second land formed in a second principal surface of the package substrate; first connection terminals connected to the second land and having the connection thereto not allowed to be checked with the semiconductor chip; a connection interconnection for connecting the first land and the second land; a second connection terminal formed in the second principal surface of the package substrate; and a branch interconnection for connecting the connection interconnection and the second connection terminal.

Abstract: A data transformation device includes a RAM cell array composed of RAM cells of n.sup.2, a data writer to collectively write the image data of "n" bits into selected RAM cells of the RAM cell array, and a data reader to collectively read image data of "n" bits from selected RAM cells of the RAM cell array. The data transformation device also includes a RAM cell matrix of a set of a plurality of RAM cell arrays composed of RAM cells of n.sup.2, a RAM cell selector to select a RAM cell array of the RAM matrix, a data writer to collectively write the image data of "n" bits into RAM cells of the selected RAM cell array, and a data reader to collectively read image data of "n" bits from RAM cells of the selected RAM cell array.