Abstract:
According to one embodiment, a USB memory device includes: a substrate including a semiconductor chip, a plurality of operating terminals, a reference potential terminal and a reference potential wiring; and a housing holding the substrate inside, being electrically connected to the reference potential terminal, and having electric conductivity. The reference potential wiring electrically connects the operating terminal with the reference potential terminal.
Abstract:
According to one embodiment, a semiconductor device includes a board, a controller chip, a semiconductor chip, a sealing portion, and a component. The board includes a first surface and a second surface opposite to the first surface, the first surface comprising a terminal. The controller chip is on the second surface of the board. The semiconductor chip is on the second surface of the board. The sealing portion integrally covers the controller chip and the semiconductor chip and does not cover a region of the second surface of the board. The component is on the region of the second surface of the board to perform an operation with respect to the outside of the semiconductor device.
Abstract:
According to one embodiment, a semiconductor memory device includes: a substrate including a memory capable of storing data and a controller controlling the memory, and a housing including first and second housing parts and holding the substrate therein. The first housing part includes a fixing unit which has elasticity and is in contact with the substrate.
Abstract:
According to one embodiment, a semiconductor device includes a case, a connector, and a cap. The case includes a first main surface, a second main surface opposite to the first main surface, a first concave portion provided with at least one of the first main surface and the second main surface, and a semiconductor memory housed inside. The connector is connected to the case. The cap includes a third main surface, a fourth main surface opposite to the third main surface, a locking portion provided with at least one of the third main surface and the fourth main surface which is locked with the first concave portion, and a side surface provided with an opening portion opening between the third main surface and the fourth main surface.