Patent ID: 8462535
Filing Date: 2013-06-11
Classification: G11C

Abstract:
1. A memory module, comprising: a printed circuit board (PCB) of a rectangular shape defined by first and second short sides opposite to each other, and first and second long sides opposite to each other, the module substrate including a first region defined by the first and second long sides and the first short side, a second region defined by the first and second long sides and the second short side and a third region defined between the first and second regions; a first set of memory devices provided on the first region of the PCB; a second set of memory devices provided on the second region of the PCB; a first buffer device provided on the third region of the PCB; a second buffer device provided on the third region of the PCB; a first set of terminals provided on the first region of the PCB, between the first long side and the first set of memory devices; a second set of terminals provided on the second region of the PCB, between the first long side and the second set of memory devices; a third set of terminals provided on the third region of the PCB, between the first and second sets of terminals; a first group of wires provided between the first set of terminals and the first buffer device to transfer a first data therebetween; a second group of wires provided between the second set of terminals and the second buffer device to transfer a second data therebetween: a third group of wires provided between the first and second buffer devices; a fourth group of wires provided between the third group of wires and the third set of terminals to transfer a command signal, an address signal, a control signal and a clock signal therebetween; a fifth group of wires provided between the first buffer and the second set of memory devices; and a sixth group of wires provided between the second buffer device and the first set of memory devices.