Patent ID: 7053471

Claim:
A memory card comprising: a front surface-side; a rear surface-side; a front face; a back face; a cap defining dimensions of the memory card and having a front surface, a rear surface and a groove on said rear surface thereof; a substrate having a front surface, a rear surface and external terminals arranged on said rear surface thereof; a first flash memory chip arranged on the front surface of the substrate; a controller chip for said flash memory chip arranged on said front surface of said substrate, and electrically connected with the external terminals; wherein said first flash memory chip, the controller chip and said substrate are arranged in said groove, said groove is formed at a front-face side half of said rear surface of the cap, and there is no wiring connection to said first flash memory chip and said controller at a back-face side half of said memory card, wherein said substrate has a planar area which is equal to or less than one half of a planar area of said cap, and wherein, in a direction of the long side of said cap, the length of said substrate is smaller than the length of one half of said cap.