摘要:
The invention enhances resistance to a surge in a semiconductor device having a semiconductor die mounted on a lead frame. An N type embedded layer, an epitaxial layer and a P type semiconductor layer are disposed on the front surface of a P type semiconductor substrate forming an IC die. A metal thin film is disposed on the back surface of the semiconductor substrate, and a conductive paste containing silver particles and so on is disposed between the metal thin film and a metal island. When a surge is applied to a pad electrode disposed on the front surface of the semiconductor layer, the surge current flowing from the semiconductor layer into the semiconductor substrate runs toward the metal island through the metal thin film.
摘要:
An information processing apparatus includes a receiving unit for receiving data; a printing unit for printing the data; a data storage unit for storing the data; a print setting storage unit for storing a print enable setting indicating whether the data received with the receiving unit is printed; and a print control unit for controlling the printing unit to print the data stored in the data storage unit when the print enable setting is not set to print the data and it is determined that a remaining storage capacity of the data storage unit is not sufficient.
摘要:
A signal processing section included in a semiconductor testing circuit supplies a test signal inputted from a tester via a signal line to a plurality of DUTs and generates a test result by synthesizing response signals transmitted from the plurality of DUTs on the basis of the test signal. A test result output section included in the semiconductor testing circuit makes a voltage level of the test result differ from a voltage level of the test signal inputted and outputs the test result to the tester via the signal line.
摘要:
A method for determining deterioration of accumulator battery hooked up with loads in a system based on results of measuring internal resistances of an accumulator battery, the method comprising the steps of; predetermining as a specified temperature a temperature at which the deterioration of the accumulator battery is determined; calculating in advance temperature correction coefficients of the internal resistances from changes of the internal resistances depending on temperatures; predetermining resistance-voltage conversion factors to convert between the internal resistances at the specified temperature and terminal discharge voltages of the accumulator battery which are obtained at the specified temperature under a condition of flowing predetermined discharge currents from the accumulator battery; measuring the internal resistances of the accumulator battery and temperature of the accumulator battery at an internal resistance measurement; converting the measured internal resistance values into the internal resistance values at the specified temperature with use of the temperature correction coefficients of the internal resistances; converting the internal resistance values at the specified temperature into the terminal discharge voltage values of the accumulator battery at the specified temperature with use of the resistance-voltage conversion factors; and determining whether the accumulator battery is deteriorated or not by means of comparison of the terminal discharge voltage values of the accumulator battery at the specified temperature and a predetermined threshold value as a deterioration judgment standard.
摘要:
An image processing apparatus capable of receiving a response with respect to an acquisition request of management information of a printing apparatus even if the printing apparatus is working. The image processing apparatus comprises a network connecting section; an interface section; a data transferring section; a management information acquiring section; a management information storing section; and a network controlling section, in the case that the printing apparatus is not working, the management information acquiring section acquires management information from the printing apparatus; in the case that the printing apparatus is working, the management information acquiring section acquires management information from the management information storing section.
摘要:
The method for calculating charged rate of a secondary battery is intended to calculate charged rate of a secondary battery which supplies electric power to loads, and comprises the step to measure voltage of the secondary battery more than once in a predetermined period of time after termination of charge or discharge, the step to determine the coefficients of a quadric or more exponential damping function which approximates the time characteristic of the open circuit voltage of the secondary battery by recursive calculation with the plural measured voltage values, and the step to calculate a convergent value of the open circuit voltage of the secondary battery from at least the exponential damping function with the coefficients determined above. Therefore, precise charged rate of the secondary battery can be calculated from the precise convergent value of the open circuit voltage
摘要:
A power supply apparatus includes a diode that is disposed in the path of a main current that is a subject of power control. The diode includes a substrate; a gallium-nitride buffer layer formed on the substrate; a gallium-nitride layer formed on the gallium-nitride buffer layer; and an n-type aluminum-gallium-nitride layer formed on the gallium-nitride layer.
摘要:
A multi-function system in which one of plural peripheral apparatuses is connected as a parent peripheral apparatus to an upper apparatus having a peripheral apparatus driver for making the peripheral apparatuses operative and the residual peripheral apparatuses are connected as child peripheral apparatuses to the parent peripheral apparatus. The parent peripheral apparatus has a descriptor transmitting unit which forms and transmits peripheral apparatus descriptors to device-define the parent and child peripheral apparatuses. The upper apparatus has a first control unit which activates the corresponding driver every descriptor reception and gives ID information and a data communicating unit which forms and transmits ID communication data for specifying a transmission destination of communication data to each peripheral apparatus. The parent peripheral apparatus has a peripheral apparatus control unit which analyzes the received ID communication data to discriminate a transfer destination and transfers the communication data.
摘要:
A composite system includes an image-inputting apparatus and an image-outputting apparatus. The image-inputting apparatus includes a receiving section and first decision section. The receiving section receives an identification. The first decision section compares the identification with identifications that have been registered previously in the image-inputting apparatus, thereby determining whether the identification should be permitted to use the image-inputting apparatus. The identification is transmitted to the image outputting apparatus. The image outputting apparatus includes a second decision section. The second decision section compares the identification with identifications that have been registered previously in the image outputting apparatus, thereby determining whether the identification should be permitted to use the image-outputting apparatus. A replay indicative of the second determination is transmitted to the image-inputting apparatus. The image is outputted to the image-outputting apparatus in accordance with the determination made by said first decision section and the reply.
摘要:
The invention provides a method of forming an electrode or wiring which prevents reattachment of an etching residue in following processes by removing the etching residue at a bevel portion of a semiconductor wafer. An insulation film is formed so as to cover a front surface and a back surface of a semiconductor wafer, and then a conductive film is formed on a whole surface of the insulation film. Next, a photoresist layer is selectively formed on the conductive film by an exposure and development process. The conductive film is then selectively removed by an isotropic etching with using this photoresist layer as a mask, thereby forming an electrode or wiring of a semiconductor device. Since the electrode or the wiring of the semiconductor device is formed by isotropically etching the conductive film, a hangnail-like etching residue causing dust does not occur at the bevel portion of the wafer even though the conductive film remains on the back side of the semiconductor wafer.