Abstract: To provide a solvent separator for purifying an exhaust atmosphere efficiently in solvent removal from the exhaust atmosphere containing a vaporized solvent by the heating exhausted from an exhaust generator, so that the vaporized solvent does not slip through an electrode for collecting the solvent and is positively led to the electrode. An electrode is arranged in a first wall surface of a casing of a solvent separation unit having a circular cylindrical shape, thereby inducing a vaporized solvent in an exhaust atmosphere to the electrode by a fan and discharging the solvent to the outside of the separator with part of the peripheral exhaust atmosphere while attracting the solvent to the electrode by an electric field of the electrode.

Abstract: According to one embodiment, a storage device includes, when power is supplied to a storage unit, counting of an elapsed time is started. If a command is input from a host device, and the elapsed time from input of a previous command to input of a current command is calculated based on time information clocked by the host device and on a counter value counted until the corresponding command is input. Matching of the time information is determined based on a temporal relation between the adding result of adding the calculated elapsed time to the time information included in the previous command and the time information included in the current command. When the mismatching is determined, data in the storage unit is invalidated.

Abstract: According to one embodiment, a semiconductor device includes, for example, a circuit board, a plurality of elements, a plurality of controllers, and a first signal line. The elements are provided on the circuit board. The elements each include a memory. The controllers each are configured to control read of data from the memory. The controllers each are configured to control write of data into the memory. A control signal is transmitted through the first signal line. The first signal line is used in common by the controllers.

Abstract: According to one embodiment, a memory device includes: a nonvolatile semiconductor memory; and a controller which controls the semiconductor memory. The controller includes: a first memory which stores a first key; a second memory which stores a second key; a first generator which generates a third key based on a random number; a second generator which generates a fourth key based on the first key and the third key; and an encryptor which encrypts the second key with the third key. The third key and the encrypted second key are stored in a host device enabled to access the memory device.

Abstract: According to one embodiment, a data storing method includes saving data stored in a memory device to a host device and verifying validity or accuracy of the data saved in the host device.

Abstract: According to one embodiment, a data storage device includes a controller driven by a first power supply voltage, a nonvolatile memory controlled by the controller and driven by a second power supply voltage, and a switch element determining whether the second power supply voltage is applied to the nonvolatile memory. The controller is configured to turn off the switch element in a first mode and turn on the switch element in a second mode.

Abstract: According to the embodiments, a storage array system includes a plurality of storage units, and a host device. The host device determines whether first data, which is restored from data in the storage units other than a replaced first storage unit, is identical with data indicated by a first function. The host device transmits and writes the first data to the first storage unit, when the first data is not identical with the data indicated by the first function. The host device transmits a deletion notification to the first storage unit, when the first data is identical with the data indicated by the first function.

Abstract: A semiconductor device includes a substrate, a sealing portion, a controller, a semiconductor chip, and a plurality of differential signal balls. The substrate has a first surface and a second surface positioned on a side opposite to the first surface. The sealing portion is formed on the first surface of the substrate. The controller is covered with the sealing portion. The semiconductor chip is electrically connected to the controller, and is covered with the sealing portion. The plurality of differential signal balls are formed on the second surface of the substrate. At least some of the plurality of differential signal balls are arranged substantially parallel to one side of the substrate.

Abstract: According to embodiments, a controller comprises a write control unit that performs writing in a nonvolatile semiconductor memory, and an area management unit that causes the write control unit to perform write processing until a spare area not storing valid data is not present in the nonvolatile semiconductor memory, and transmits an error to a host when the spare area is not present.

Abstract: According to one embodiment, a memory system includes a nonvolatile memory and a controller. The controller reads write data associated with a first write command from a host memory by a unit of a first size in response to the first write command from a host. The host memory is included in the host. In a case where the size of first data not yet read from the host memory out of the write data is less than a second size, in response to a second write command, the controller reads second data of the second size and writes the read second data into the nonvolatile memory. The second data includes the first data and third data included in write data associated with the second write command. After writing the second data into the nonvolatile memory, the controller transmits a notice for the first write command to the host.

Abstract: According to an embodiment, when a storage status of a first storage unit is recognized as a protected state, a control unit writes data to a second storage unit. When a read target address is recorded in a data migration log area, the control unit reads data from the second storage unit. When the read target address is not recorded in the data migration log area, the control unit reads data from the first storage unit.

Abstract: According to embodiments, a controller comprises a write control unit that performs writing in a nonvolatile semiconductor memory, and an area management unit that causes the write control unit to perform write processing until a spare area not storing valid data is not present in the nonvolatile semiconductor memory, and transmits an error to a host when the spare area is not present.

Abstract: According to one embodiment, a storage device includes, when power is supplied to a storage unit, counting of an elapsed time is started. If a command is input from a host device, and the elapsed time from input of a previous command to input of a current command is calculated based on time information clocked by the host device and on a counter value counted until the corresponding command is input. Matching of the time information is determined based on a temporal relation between the adding result of adding the calculated elapsed time to the time information included in the previous command and the time information included in the current command. When the mismatching is determined, data in the storage unit is invalidated.

Abstract: According to one embodiment, a data storing method includes saving data stored in a memory device to a host device and verifying validity or accuracy of the data saved in the host device.

Abstract: According to one embodiment, a storage device that has a nonvolatile semiconductor memory includes an authentication information storage unit that previously stores first apparatus authentication information to authenticate an authorized host device and first user authentication information to authenticate an authorized user. The storage device executes apparatus authentication on the basis of second apparatus authentication information received from a newly connected host device and the first apparatus authentication information in the authentication information storage unit and executes an invalidation process of user data stored in the nonvolatile semiconductor memory, when the apparatus authentication is failed.

Abstract: According to one embodiment, a semiconductor package includes a package substrate, a controller chip, a semiconductor memory chip, a temperature sensor, a seal portion, and a plurality of solder balls. The controller chip and the semiconductor memory chip are provided on a first surface of the package substrate. The temperature sensor is provided at a position along an edge of the first surface, which is at a center portion separated away from corner portions. The plurality of solder balls is provided on a second surface that is at an opposite side of the first surface.

Abstract: According to one embodiment, a storage device includes, when power is supplied to a storage unit, counting of an elapsed time is started. If a command is input from a host device, and the elapsed time from input of a previous command to input of a current command is calculated based on time information clocked by the host device and on a counter value counted until the corresponding command is input. Matching of the time information is determined based on a temporal relation between the adding result of adding the calculated elapsed time to the time information included in the previous command and the time information included in the current command. When the mismatching is determined, data in the storage unit is invalidated.

Abstract: According to one embodiment, a storage device that has a nonvolatile semiconductor memory includes an authentication information storage unit that previously stores first apparatus authentication information to authenticate an authorized host device and first user authentication information to authenticate an authorized user. The storage device executes apparatus authentication on the basis of second apparatus authentication information received from a newly connected host device and the first apparatus authentication information in the authentication information storage unit and executes an invalidation process of user data stored in the nonvolatile semiconductor memory, when the apparatus authentication is failed.

Abstract: A semiconductor device includes a substrate, a sealing portion, a controller, a semiconductor chip, and a plurality of differential signal balls. The substrate has a first surface and a second surface positioned on a side opposite to the first surface. The sealing portion is formed on the first surface of the substrate. The controller is covered with the sealing portion. The semiconductor chip is electrically connected to the controller, and is covered with the sealing portion. The plurality of differential signal balls are formed on the second surface of the substrate. At least some of the plurality of differential signal balls are arranged substantially parallel to one side of the substrate.

Abstract: According to one embodiment, a semiconductor device includes a board, a sealing portion, a controller, a semiconductor chip, and solder balls. The board includes a first surface and a second surface opposite to the first surface. The controller and the semiconductor chip are covered with the sealing portion. The solder balls are on the second surface of the board. The solder balls include a plurality of solder ball sets each corresponding to a pair of differential input and differential output signals, and the plurality of solder ball sets are arranged substantially parallel to a side of the board.