221results about How to "Overall size miniaturization" patented technology

A nonvolatile memory and a method of operating the same are proposed. The nonvolatile memory has single-gate memory cells, wherein a structure of a transistor and a capacitor is embedded in a semiconductor substrate. The transistor comprises a first conducting gate stacked on the surface of a dielectric with doped regions formed at two sides thereof as a source and a drain. The capacitor comprises a doped region, a dielectric stacked thereon, and a second conducting gate. The conducting gates of the capacitor and the transistor are electrically connected together to form a single floating gate of the memory cell. The semiconductor substrate is p-type or n-type. Besides, a back-bias program write-in and related erase and readout operation ways are proposed for the single-gate memory cells.

A semiconductor device includes an oxide semiconductor layer provided over a substrate having an insulating surface; a gate insulating film covering the oxide semiconductor layer; a first conductive layer and a second conductive layer laminated in this order over the gate insulating film; an insulating film covering the oxide semiconductor layer and a gate wiring including a gate electrode (the first and second conductive layers); and a third conductive layer and a fourth conductive layer laminated in this order over the insulating film and electrically connected to the oxide semiconductor layer. The gate electrode is formed using the first conductive layer. The gate wiring is formed using the first conductive layer and the second conductive layer. A source electrode is formed using the third conductive layer. A source wiring is formed using the third conductive layer and the fourth conductive layer.

The present invention relates to a multi-step operation electrical switch having an elastic conductive plate, which is deformed to establish an electrical contact when a pressing force is applied thereto and is restored to the initial state to break the electrical contact when the pressing force is removed.According to the present invention, the elastic plate has a plurality of dome portions formed integrally therewith, each of the dome portions bulges in the direction opposite to the direction in which the elastic plate is pressed and is depressed by the pressing force applied thereto. The applied pressing force varies with the dome portions. In order to prevent an electrical contact from being established when no pressing force is applied to the elastic plate, spacer portions are necessary. According to the present invention, inclined spacer portions are provided along the outer peripheries of a first and a second dome portions, respectively.Therefore, since the pressing force is temporarily reduced when one dome portion is depressed, a click feel can be provided. Since the pressing force varies with the dome portions, a multi-step operation can be achieved. In addition, since the elastic plate has a plurality of dome portions and a plurality of spacer portions formed integrally therewith, the overall size of the switch can be readily miniaturized.

Disclosed is a portable terminal having slidable and foldable housings The portable terminal includes a first housing, a second housing which is slidable on the first housing in a state such that it faces the first housing, for opening and closing a predetermined portion of an upper surface of the first housing, a third housing which is connected to the first housing to rotate in a direction away from a bottom surface of the first housing, for opening and closing a predetermined portion of the bottom surface of the first housing, and a hinge unit for connecting the first housing to the third housing.