摘要:
A method for producing a semiconductor temperature sensor comprises the steps of forming PNP bipolar transistors and PMOS transistors so that a base region of each of the PNP bipolar transistors and a corresponding N-well region of each of the PMOS transistors are formed at the same time, and connecting the PNP bipolar transistors in a Darlington connection.
摘要:
A method for manufacturing a semiconductor device using inclined stage of a dicing saw in order to cut the semiconductor substrate obliquely with respect to the depthwise direction. When a plurality of semiconductor chips diced obliquely are connected, a degree of connecting accuracy is increased, and it is possible to realize a contact-type image sensor of high resolving power and high accuracy.
摘要:
The image reading apparatus is of the multi-chip line sensor having a plurality of photoelectric conversion elements connected through corresponding switching elements commonly to every one another. Each group of the commonly connected photoelectric conversion elements outputs on a common line an image signal which is then fed to a sample hold circuit and is thereafter outputted from a single output terminal. By such construction, the image signal from the photoelectric conversion elements is sequentially outputted externally from the single output terminal in the form of output waveshape as held in the sample hold circuit in such manner as to prolong output duration of each bit image signal to thereby enable fast operation of the line sensor.
摘要:
Provided is a photoelectric conversion device for outputting an output voltage according to incident light, including photoelectric conversion unit for holding an optical charge generated by the incident light, a signal processing circuit impressed with a reference voltage for outputting the output voltage according to the incident light by applying a predetermined process to an output signal of the photoelectric conversion unit, and a switch provided between a terminal externally supplied with the reference voltage, and the signal processing circuit.
摘要:
Provide is a photoelectric conversion device capable of correcting an optical signal with high accuracy and more adaptable to high-speed operations, including: an optical signal common output line (10) commonly connected to all the photoelectric conversion units (30), for outputting an amplified optical signal from each of the photoelectric conversion units in chronological order, and having a first parasitic capacitor (31); an initial voltage common output line (11) commonly connected to all the photoelectric conversion units (30), for outputting the amplified initial voltage from each of the photoelectric conversion units (30) in chronological order, and having a second parasitic capacitor (32); and a capacitor group (20) commonly connected to one of the optical signal common output line (10) and the initial voltage common output line (11), which has a capacitance value substantially equal to a differential capacitance value between the first parasitic capacitor (31) and the second parasitic capacitor (32).
摘要:
A photoelectric converter has light receiving elements, amplifier circuits connected to respective outputs of the light receiving elements, reset circuits connected to respective outputs of some of the light receiving elements, and connection circuits connected between respective outputs of adjacent ones of the light receiving elements.
摘要:
Provided is a photoelectric conversion device for outputting an output voltage according to incident light, including photoelectric conversion unit for holding an optical charge generated by the incident light, a signal processing circuit impressed with a reference voltage for outputting the output voltage according to the incident light by applying a predetermined process to an output signal of the photoelectric conversion unit, and a switch provided between a terminal externally supplied with the reference voltage, and the signal processing circuit.
摘要:
Provided is an inexpensive photoelectric converter having a function of switching resolutions. In a photoelectric converter including plural photoelectric conversion circuits, an amplifier circuit connected to outputs of the photoelectric conversion circuits, and a reset circuit connected to outputs of part of the photoelectric conversion circuits, there is arranged a connection circuit between outputs of adjacent photoelectric conversion circuits of the photoelectric conversion circuits.
摘要:
A signal processing circuit has a sample/hold circuit for sampling an input signal comprised of a first signal and a second signal and for holding the first signal. The first signal comprises an optical signal obtained due to storage of electric charges generated due to light incident upon a photoelectric converter, and the second signal comprises a reference signal obtained due to resetting of the photoelectric converter. A subtracter receives an output signal of the sample/hold circuit and the input signal and obtains a difference between the output signal of the sample/hold circuit and the input signal. A voltage clamp circuit clamps a part or all of an output signal from the subtracter.
摘要:
A work vehicle includes an engine, a PTO shaft driven by power from the engine, an operator's seat, an operator's presence sensor for detecting presence/absence of an operator at the operator's seat, and an automatic engine stop unit operable to automatically stop the engine in response to detection of the operator's absence at the operator's seat. The work vehicle includes a utility member for the vehicle selectively movable between a use position and a non-use position, a non-use state detecting sensor for detecting movement of the utility member to the non-use position, and an override unit operable to override the automatic engine stop function of the automatic engine stop unit, the override unit providing an override signal to the automatic engine stop unit in response to detection by the non-use state detecting sensor of the movement of the utility member to the non-use position.