摘要:
A semiconductor circuit capable of controlling and holding the threshold voltage of a transistor at an optimal level and a driving method thereof are disclosed. A storage device, a display device, or an electronic device including the semiconductor circuit is also provided. The semiconductor circuit comprises a diode and a first capacitor provided in a node to which a transistor to be controlled is connected through its back gate. This structure allows the application of desired voltage to the back gate so that the threshold voltage of the transistor is controlled at an optimal level and can be held for a long time. A second capacitor connected in parallel with the diode is optionally provided so that the voltage of the node can be changed temporarily.
摘要:
A low-power programmable LSI that can perform dynamic configuration is provided. The programmable LSI includes a plurality of logic elements. The plurality of logic elements each include a configuration memory. Each of the plurality of logic elements performs different arithmetic processing and changes an electrical connection between the logic elements, in accordance with the configuration data stored in the configuration memory. The configuration memory includes a set of a volatile storage circuit and a nonvolatile storage circuit. The nonvolatile storage circuit includes a transistor whose channel is formed in an oxide semiconductor layer and a capacitor whose one of a pair of electrodes is electrically connected to a node that is set in a floating state when the transistor is turned off.
摘要:
A semiconductor device having a novel structure is provided. The semiconductor device includes a first p-type transistor, a second n-type transistor, a third transistor, and a fourth transistor. One of a source and a drain of the third transistor is connected to a wiring supplying first potential, and the other is connected to one of a source and a drain of the first transistor. One of a source and a drain of the second transistor is connected to the other of the source and the drain of the first transistor, and the other is connected to one of a source and a drain of the fourth transistor. The other of the source and the drain of the fourth transistor is connected to a wiring supplying second potential lower than the first potential. An oxide semiconductor material is used in channel formation regions of the third transistor and the fourth transistor.
摘要:
The present invention solves a problem that an operation to input or select an address of an image which is to be synthesized or a name of a part whenever an image included in another folder is synthesized to a screen or an image which is being edited. An image editing method, using a computer including a memory portion and a display portion connected to the computer, includes the steps of reading first image data from the memory portion to display as a first image in an image editing window displayed in the display portion; displaying second image data which is synthesized to the first image as an icon in the image editing window; and displaying the icon as a second image after the icon is selected by an icon selecting means in the image editing window to synthesize the first and second images.
摘要:
A resistor whose characteristic value can be changed without requiring a photolithography process again is provided. The resistor includes a plurality of first resistor units which is connected serially to each other and a second resistor unit which is connected in parallel to part of the first resistor units. Then, after the measurement of a semiconductor integrated circuit, the second resistor unit is electrically disconnected as necessary. The first resistor units may be either a unit including a single resistor or may be a unit including a plurality of resistors.
摘要:
A semiconductor device capable of assessing and rewriting data at a desired timing is provided. A semiconductor device includes a register circuit, a bit line, and a data line. The register circuit includes a flip-flop circuit, a selection circuit, and a nonvolatile memory circuit electrically connected to the flip-flop circuit through the selection circuit. The data line is electrically connected to the flip-flop circuit. The bit line is electrically connected to the nonvolatile memory circuit through the selection circuit. The selection circuit selectively stores data based on a potential of the data line or a potential of the bit line in the nonvolatile memory circuit.