US Patent 7121846 Card-like electronic device which can readily be disassembled

In a card-like electronic device, a circuit board is interposed between a first cover and a second cover which is faced to the first cover and separable from the first cover towards a first direction. A connector is connected to the circuit board. The first cover has an engaging member including a movable latch and a spring portion urging the latch towards a second direction perpendicular to the first direction. The second cover has an engaged member including a latch receiving portion for receiving the latch. The latch is urged by the spring portion to a position where movement of the latch receiving portion in the first direction is locked.