Patent ID: 7291903

Claim:
A memory device including a memory card which comprises: a plate-like card body including a wiring substrate having a first face and a second face, wherein a plurality of semiconductor chips are mounted over the second face of the wiring substrate, a plurality of external connection terminals are formed on the first face of the wiring substrate, and the semiconductor chips are encapsulated with resin; and a plate-like cap member having a recess to house the card body, the recess being formed in a first face of the cap member, wherein the card body is housed in the recess of the cap member such that the first face of the wiring substrate is exposed, and the cap member further includes a convex section that projects, in a thickness direction of the memory card, from the first face of the cap member at a trailing edge of the cap member as considered with respect to a direction of card insertion, wherein guide channels are formed in opposite side edge portions of the cap member, wherein the guide channels extend inward, in the thickness direction of the memory card, from a second face of the cap member, wherein respective notch channels are formed at portions of said guide channels, wherein, in the thickness direction of the memory card, the notch channels pass through the cap member, and wherein the semiconductor chips include a first semiconductor chip having formed therein an electrically erasable and writable non-volatile memory and a second semiconductor chip having formed therein an interface controller to control a memory interface operation to the non-volatile memory.