Abstract: A disclosed battery protecting circuit includes a battery protecting IC powered by a voltage of a secondary battery; another battery protecting IC powered by a voltage of another secondary battery connected to the secondary battery in series; and a constant voltage output unit which receives a maximum voltage obtained by adding voltages of the secondary battery and the other secondary battery in series and outputs a constant voltage upon receipt of a control signal from an output terminal of the battery protecting IC or the other battery protecting IC.

Abstract: A method for producing a semiconductor optical device includes the steps of forming first and second optical waveguides; forming a first resin layer on the first and the second optical waveguides; forming an opening in the first resin layer; forming a first electrode in the opening; forming a second resin layer on the first electrode and the first resin layer; forming a groove in the second resin layer on the first electrode; forming a second electrode on the second resin layer, a side surface of the groove, and the top surface of the first electrode; and forming a third electrode on the second electrode. The second and third electrodes have a region in which the second and third electrodes pass over the second optical waveguide, and, in the region, the first and second resin layers are disposed between the second electrode and the second optical waveguide.

Abstract: According to an embodiment, a semiconductor device includes a substrate, a connector, a volatile semiconductor memory element, multiple nonvolatile semiconductor memory elements, and a controller. A wiring pattern includes a signal line that is formed between the connector and the controller and that connects the connector to the controller. On the opposite side of the controller to the signal line, the multiple nonvolatile semiconductor memory elements are aligned along the longitudinal direction of the substrate.

Abstract: A charging control circuit for a secondary battery includes a temperature detection terminal for detecting the temperature of a secondary battery from an input detected voltage; a temperature comparison part having four threshold voltages corresponding to four reference temperatures, the temperature comparison part being configured to compare the four threshold voltages with the detected voltage input to the temperature detection terminal and to output a temperature range signal indicating the temperature range of the detected voltage; and a control part configured to control a charging current and/or a charging voltage based on the temperature range signal output from the temperature comparison part.

Abstract: According to an embodiment, a semiconductor device includes a substrate, a connector, a volatile semiconductor memory element, multiple nonvolatile semiconductor memory elements, and a controller. A wiring pattern includes a signal line that is formed between the connector and the controller and that connects the connector to the controller. On the opposite side of the controller to the signal line, the multiple nonvolatile semiconductor memory elements are aligned along the longitudinal direction of the substrate.

Abstract: A battery protection circuit for protecting a secondary battery composed of a first cell and a second cell, includes a reference voltage supply circuit that outputs a first reference voltage and a second reference voltage generated based on cell voltages of the first cell and the second cell, respectively; a first detection circuit that outputs a signal prohibiting charging when at least one of the cell voltages of the first cell and the second cell exceeds a predetermined overcharge indication value; a second detection circuit that outputs a signal prohibiting charging when at least one of the first reference voltage and the second reference voltage is not within a predetermined target range; and a control circuit that controls to prohibit charging when at least one of the outputs from the first detection circuit and the second detection circuit is the signal prohibiting charging.

Abstract: According to an embodiment, a semiconductor device includes a substrate, a connector, a volatile semiconductor memory element, multiple nonvolatile semiconductor memory elements, and a controller. A wiring pattern includes a signal line that is formed between the connector and the controller and that connects the connector to the controller. On the opposite side of the controller to the signal line, the multiple nonvolatile semiconductor memory elements are aligned along the longitudinal direction of the substrate.

Abstract: According to an embodiment, a semiconductor device includes a substrate, a connector, a volatile semiconductor memory element, multiple nonvolatile semiconductor memory elements, and a controller. A wiring pattern includes a signal line that is formed between the connector and the controller and that connects the connector to the controller. On the opposite side of the controller to the signal line, the multiple nonvolatile semiconductor memory elements are aligned along the longitudinal direction of the substrate.

Abstract: According to an embodiment, a semiconductor device includes a substrate, a connector, a volatile semiconductor memory element, multiple nonvolatile semiconductor memory elements, and a controller. A wiring pattern includes a signal line that is formed between the connector and the controller and that connects the connector to the controller. On the opposite side of the controller to the signal line, the multiple nonvolatile semiconductor memory elements are aligned along the longitudinal direction of the substrate.

Abstract: A disclosed battery protecting circuit for protecting a secondary battery including at least first and second cells connected in series includes a first terminal connected on a high potential side of the first cell; a second terminal connected on a low potential side of the first cell and a high potential side of the second cell; a third terminal connected on a low potential side of the second cell; a charge abnormality detecting circuit detecting abnormality of the charged state of the secondary battery; a shifting circuit shifting electric potential of the second terminal on a side of the first terminal or a third terminal when a disconnection occurs between the secondary battery and the second terminal; a disconnection detecting circuit detecting the disconnection based on the electric potential of the second terminal; and a latching circuit retaining a result detected by the disconnection detecting circuit.

Abstract: A disclosed battery protecting circuit includes a battery protecting IC powered by a voltage of a secondary battery; another battery protecting IC powered by a voltage of another secondary battery connected to the secondary battery in series; and a constant voltage output unit which receives a maximum voltage obtained by adding voltages of the secondary battery and the other secondary battery in series and outputs a constant voltage upon receipt of a control signal from an output terminal of the battery protecting IC or the other battery protecting IC.

Abstract: According to an embodiment, a semiconductor device includes a substrate, a connector, a volatile semiconductor memory element, multiple nonvolatile semiconductor memory elements, and a controller. A wiring pattern includes a signal line that is formed between the connector and the controller and that connects the connector to the controller. On the opposite side of the controller to the signal line, the multiple nonvolatile semiconductor memory elements are aligned along the longitudinal direction of the substrate.

Abstract: According to an embodiment, a semiconductor device includes a substrate, a connector, a volatile semiconductor memory element, multiple nonvolatile semiconductor memory elements, and a controller. A wiring pattern includes a signal line that is formed between the connector and the controller and that connects the connector to the controller. On the opposite side of the controller to the signal line, the multiple nonvolatile semiconductor memory elements are aligned along the longitudinal direction of the substrate.

Abstract: According to an embodiment, a semiconductor device includes a substrate, a connector, a volatile semiconductor memory element, multiple nonvolatile semiconductor memory elements, and a controller. A wiring pattern includes a signal line that is formed between the connector and the controller and that connects the connector to the controller. On the opposite side of the controller to the signal line, the multiple nonvolatile semiconductor memory elements are aligned along the longitudinal direction of the substrate.

Abstract: A battery protection circuit for protecting a secondary battery composed of a first cell and a second cell, includes a reference voltage supply circuit that outputs a first reference voltage and a second reference voltage generated based on cell voltages of the first cell and the second cell, respectively; a first detection circuit that outputs a signal prohibiting charging when at least one of the cell voltages of the first cell and the second cell exceeds a predetermined overcharge indication value; a second detection circuit that outputs a signal prohibiting charging when at least one of the first reference voltage and the second reference voltage is not within a predetermined target range; and a control circuit that controls to prohibit charging when at least one of the outputs from the first detection circuit and the second detection circuit is the signal prohibiting charging.

Abstract: According to an embodiment, a semiconductor device includes a substrate, a connector, a volatile semiconductor memory element, multiple nonvolatile semiconductor memory elements, and a controller. A wiring pattern includes a signal line that is formed between the connector and the controller and that connects the connector to the controller. On the opposite side of the controller to the signal line, the multiple nonvolatile semiconductor memory elements are aligned along the longitudinal direction of the substrate.

Abstract: A charging control circuit for a secondary battery includes a temperature detection terminal for detecting the temperature of a secondary battery from an input detected voltage; a temperature comparison part having four threshold voltages corresponding to four reference temperatures, the temperature comparison part being configured to compare the four threshold voltages with the detected voltage input to the temperature detection terminal and to output a temperature range signal indicating the temperature range of the detected voltage; and a control part configured to control a charging current and/or a charging voltage based on the temperature range signal output from the temperature comparison part.

Abstract: A battery protecting circuit is disclosed that includes a negative voltage terminal voltage detecting circuit that detects when a voltage of a negative voltage terminal decreases to less than a predetermined voltage; an abnormality detecting circuit that detects an abnormality in charge/discharge conditions of a battery; a switch that is connected between the battery and the negative voltage terminal, the switch being turned off when the negative voltage terminal voltage detecting circuit detects that the voltage of the negative voltage terminal has decreased to less than the predetermined voltage and when the abnormality detecting circuit detects the abnormality in the charge/discharge conditions of the battery; a delay time reducing circuit that reduces a time period from a time the abnormality in the charge/discharge conditions of the battery is detected to a time the switch is turned off when the voltage of the negative voltage terminal decreases to less than the predetermined voltage; and an output inval

Abstract: A battery protection circuit includes an abnormal condition detection circuit having a resistor through which a current flows from a load in response to a current flowing in the load. The resistor generates a voltage in response to the current flowing in the load. The battery protection circuit further includes a control circuit having a detection stop switch configured to control the current flowing in the resistor from the load. The control circuit turns off the detection stop switch and a protection switch connected between the battery and the load when the abnormal condition detection circuit detects the abnormal condition according to the voltage generated by the resistor. The control circuit returns the detection stop switch to an ON state after returning the protection switch to an ON state in response to a start of supplying power from the battery to the battery protection circuit.

Abstract: To provide a transmissive disk which is less subject to damage and whose levitation amount can be measured up to a smaller level with high accuracy, a manufacturing method thereof, and a levitation measurement apparatus using the transmissive disk. A transmissive disk for use in head levitation measurement in the present invention has a first side of a transmissive plate to which AR coating has been applied and a second side thereof to which lubricant coating has been applied.