Patent ID: 7440289

Claim:
A memory module, comprising: a module substrate having internal wirings and a plurality of through-hole electrodes for connecting between the internal wirings; and a control chip and a plurality of memory chips mounted on the module substrate, wherein the control chip is connected in common to the plurality of memory chips via the internal wirings and the through-hole electrodes, the plurality of memory chips include at least first to third memory chips, the first memory chip is disposed on a reverse side of the module substrate with respect to the control chip, the second chip is disposed at adjacent to the first memory chip, and the third memory chip is disposed on a reverse side of the module substrate with respect to the second memory chip, the internal wirings includes at least first and second wiring parts, the first wiring part is connected to the first memory chip, the second wiring part is connected to the second and the third memory chips, the first and second wiring parts are branched at a predetermined through-hole electrode, the predetermined through-hole electrode is positioned at the control chip side from a viewpoint of an intermediate line between a planar mounting position of the control chip and a planar mounting position of the second and third memory chips.