摘要:
A photoelectric conversion module in which an output voltage defect is suppressed is obtained by forming in parallel over a substrate n number (n is a natural number) of integrated photoelectric conversion devices each including a plurality of cells that are connected in series, and electrically connecting in parallel n−1 number or less of integrated photoelectric conversion devices with normal electrical characteristics and excluding an integrated photoelectric conversion device with a characteristic defect such as a short-circuit between top and bottom electrodes or a leak current due to a structural defect or the like formed in a semiconductor layer or the like.
摘要:
An object is to provide a programmable logic device configured to keep a connection state of logic circuits even while power supply voltage is stopped. The programmable logic device includes arithmetic circuits each of whose logic state can be changed; a configuration changing circuit changing the logic states of the arithmetic circuits; a power supply control circuit controlling supply of power supply voltage to the arithmetic circuits; a state memory circuit storing data on the logic states and data on states of the power supply voltage of the arithmetic circuits; and an arithmetic state control circuit controlling the configuration changing circuit and the power supply control circuit in accordance with the data stored in the state memory circuit. A transistor in which a channel formation region is formed in an oxide semiconductor layer is provided between the configuration changing circuit and each of the arithmetic circuits.
摘要:
A DC converter circuit having high reliability is provided. The DC converter circuit includes: an inductor configured to generate electromotive force in accordance with a change in flowing current; a transistor including a gate, a source, and a drain, which is configured to control generation of the electromotive force in the inductor by being on or off; a rectifier in a conducting state when the transistor is off; and a control circuit configured to control on and off of the transistor. The transistor includes an oxide semiconductor layer whose hydrogen concentration is less than or equal to 5×1019 atoms/cm3 as a channel formation layer.
摘要:
A color image of an inspection object is taken by an imaging means capable of taking a color image to obtain color information of an RGB color space. A gray-scale image of a color component of the RGB color space or another color space is generated, and the inspection object is detected by a pattern recognition technique. Alternatively, a binary image is generated from the generated gray-scale image, and the inspection object is detected by performing pattern recognition on the binary image. Color data of a pixel occupied by the detected inspection object is compared with color data of a non-defective inspection object which is previously prepared to judge whether or not the inspection object is defective. In addition, this judgment result is reflected in another manufacturing step through a network and product quality is improved.
摘要:
A color image of an inspection object is taken by an imaging means capable of taking a color image to obtain color information of an RGB color space. A gray-scale image of a color component of the RGB color space or another color space is generated, and the inspection object is detected by a pattern recognition technique. Alternatively, a binary image is generated from the generated gray-scale image, and the inspection object is detected by performing pattern recognition on the binary image. Color data of a pixel occupied by the detected inspection object is compared with color data of a non-defective inspection object which is previously prepared to judge whether or not the inspection object is defective. In addition, this judgment result is reflected in another manufacturing step through a network and product quality is improved.
摘要:
A semiconductor device in which a transistor using an oxide semiconductor containing In, Zn, or the like for a channel region can be driven like a p-channel transistor is provided. The semiconductor device includes a transistor and an inverter, wherein an output of the inverter is input to a gate of the transistor, a channel region of the transistor includes an oxide semiconductor film containing In, Zn, or Sn, and each channel region of transistors in the inverter contains silicon. When a high voltage is input to the inverter, a low voltage is output from the inverter and is input to the gate of the transistor, so that the transistor is turned off. When a low is input to the inverter, a high voltage is output from the inverter and is input to the gate of the transistor, so that the transistor is turned on.
摘要:
An object is to provide a programmable logic device having logic blocks connected to each other by a programmable switch, where the programmable switch is characterized by an oxide semiconductor transistor incorporated therein. The extremely low off-state current of the oxide semiconductor transistor provides a function as a non-volatile memory due to its high ability to hold a potential of a gate electrode of a transistor which is connected to the oxide semiconductor transistor. The ability of the oxide semiconductor transistor to function as a non-volatile memory allows the configuration data for controlling the connection of the logic blocks to be maintained even in the absence of a power supply potential. Hence, the rewriting process of the configuration data at starting of the device can be omitted, which contributes to the reduction in power consumption of the device.
摘要:
An object of the present invention is to provide a programmable logic device which has short start-up time after supply of power is stopped, is highly integrated, and operates with low power. In a programmable logic device including an input/output block, a plurality of logic blocks each including a logic element, and a wiring connecting the plurality of logic blocks, the logic element has a configuration memory for holding configuration data and a look-up table including a selection circuit. The configuration memory includes a plurality of memory elements each of which includes a transistor whose channel region is in an oxide semiconductor film and an arithmetic circuit provided between the transistor and the selection circuit. Configuration data is selectively changed and output by the selection circuit in accordance with an input signal.
摘要:
In a wireless tag with which a wireless communication system whose electric power of a carrier wave from a R/W is high, an overvoltage protection circuit is provided to prevent from generating excessive electric power in the wireless tag when the wireless tag receives excessive electric power. However, as noise is generated by operation of the overvoltage protection circuit, an error of reception occurs in receiving a signal whose modulation factor is small. To solve the problem, the maximum value of generated voltage in the wireless tag is held in a memory circuit after the overvoltage protection circuit operates, then the overvoltage protection circuit is controlled in accordance with the maximum value of generated voltage. The voltages at which the overvoltage protection circuit starts and stops operating are different from each other, and hysteresis occurs between the timing when the overvoltage protection circuit starts and stops operating.
摘要:
In the case where a digital camera is used for evaluating a display quality of an image display panel, moire is generated due to a shift of a pixel pitch between a pixel of a panel and a pixel of a digital camera, and thus, a great influence is given as measurement deviation. The present invention carries out a panel display quality evaluation at low cost and short time with relieved influence of moire by treating a value, which is obtained by recognizing a coordinate of a panel pixel in a shot image based on an image for detecting a coordinate and positional information thereof with high accuracy and by calculating average luminance by panel pixel unit based on a center position of a coordinate, as representative luminance in each pixel of the panel, in a panel evaluation method of shooting an image display panel with a digital camera.