摘要:
A storage device has plural data disks including a primary data area and a backup data area. Performance and reliability are secured while conserving power. A system management means includes a disk rotational state detection means, a disk rotational state control means for rotating or stopping a data disk, and a data placement control means for accessing the data disk to move the data. The data placement control means, if the data disk of the primary or backup side has been stopped at writing time, spins up and accesses thereof, and if the data disk of the primary or backup side has been stopped at reading time, prioritizes the side that is being rotated and accesses thereto, and if the data disk of the primary and backup side have both been stopped at reading time, spins up and accesses the side that has been stopped for the longer time.
摘要:
A storage device has plural data disks including a primary data area and a backup data area. Performance and reliability are secured while conserving power. A system management means includes a disk rotational state detection means, a disk rotational state control means for rotating or stopping a data disk, and a data placement control means for accessing the data disk to move the data. The data placement control means, if the data disk of the primary or backup side has been stopped at writing time, spins up and accesses thereof, and if the data disk of the primary or backup side has been stopped at reading time, prioritizes the side that is being rotated and accesses thereto, and if the data disk of the primary and backup side have both been stopped at reading time, spins up and accesses the side that has been stopped for the longer time.
摘要:
A semiconductor device having an MOSFET serving as an element to be protected, and an electrostatic protection MOSFET element mounted on the same substrate is produced with the small number of steps while implementing a high protection ability. Low concentration regions and gate electrodes are formed and then an insulation film is formed on a whole surface. Then, etching is performed using a resist pattern as a mask to leave the insulation film in a region from a part of the gate electrode to a part of the low concentration region in each of regions A1 and A3, and on a side wall of the gate electrode in a region A2. Then, a high concentration ion implantation is performed using the gate electrodes and the insulation films as masks, and then a silicide layer is formed.
摘要:
The present invention provides a high breakdown voltage transistor that eases an electric field concentration caused between a gate and a drain.The present invention provides a semiconductor device comprising: a first gate electrode formed above a semiconductor substrate through a gate insulating film; a second gate electrode that is formed above the semiconductor substrate through the gate insulating film, and that is arranged at the side of the first gate electrode through an insulating spacer; a source region and a drain region formed on the semiconductor substrate so as to sandwich the first and second gate electrodes; and an electric-field concentration easing region that is formed to sandwich some region of the semiconductor substrate below the first gate electrode, and that is formed to be overlapped with the second gate electrode and the source and drain regions.
摘要:
A semiconductor device having an MOSFET serving as an element to be protected, and an electrostatic protection MOSFET element mounted on the same substrate is produced with the small number of steps while implementing a high protection ability. Low concentration regions and gate electrodes are formed and then an insulation film is formed on a whole surface. Then, etching is performed using a resist pattern as a mask to leave the insulation film in a region from a part of the gate electrode to a part of the low concentration region in each of regions A1 and A3, and on a side wall of the gate electrode in a region A2. Then, a high concentration ion implantation is performed using the gate electrodes and the insulation films as masks, and then a silicide layer is formed.
摘要:
In one embodiment of the present invention, a high withstand voltage transistor is disclosed having small sizes including an element isolating region. The semiconductor device is provided with the element isolating region formed on a semiconductor substrate; an active region demarcated by the element isolating region; a gate electrode formed on the semiconductor substrate in the active region by having a gate insulating film in between; a channel region arranged in the semiconductor substrate under the gate electrode; a source region and a drain region positioned on the both sides of the gate electrode; and a drift region positioned between one of or both of the source region and the drain region and the channel region. One of or both of the source region and the drain region are at least partially positioned on the element isolating region, and are connected with the channel region through the drift region.
摘要:
A production system including a network processing unit which allows a node, which refers to a data part which has changed, to execute a necessary change such that nodes in a data base are always kept in a latest state, and a production processing unit which selects and matches only a production rule, which refers to the node which has changed, so as to shorten the time required for the matching processing. A method of node control designates the direct node which is not necessary to be processed, when there is a change in the data part of a hierarchical network, so as to perform the processing in the network efficiently.
摘要:
A high breakdown voltage MOS transistor capable of reducing a leakage current while reducing an element size as compared with conventional ones is realized. On a P type well, with a channel area ch in between, an N type first impurity diffusion area including a drain area and drain side drift area, and an N type second impurity diffusion area including a source area and a source side drift area are formed. Moreover, a gate electrode is formed, via a gate oxide film, above a part of the first impurity diffusion area, above the channel area and above a part of the second impurity diffusion area. The gate electrode is doped with an N type, and an impurity concentration of portions located above the first and the second impurity diffusion areas is lower than an impurity concentration of a portion located above the channel area.
摘要:
In one embodiment of the present invention, a high withstand voltage transistor is disclosed having small sizes including an element isolating region. The semiconductor device is provided with the element isolating region formed on a semiconductor substrate; an active region demarcated by the element isolating region; a gate electrode formed on the semiconductor substrate in the active region by having a gate insulating film in between; a channel region arranged in the semiconductor substrate under the gate electrode; a source region and a drain region positioned on the both sides of the gate electrode; and a drift region positioned between one of or both of the source region and the drain region and the channel region. One of or both of the source region and the drain region are at least partially positioned on the element isolating region, and are connected with the channel region through the drift region.
摘要:
An image processing unit is disclosed that smoothens a notice pixel of input image data with pixel values of pixels around the notice pixel to reduce noise in the image data. The image processing unit includes an edge extraction unit that extracts an edge based on the pixel values of the image data; a region determination unit that determines a region to be processed where a sum of edge intensities of the pixels including the notice pixel becomes greater than or equal to a threshold; and a smoothening unit that changes a smoothening intensity in accordance with a size of the region to be processed to smoothen the notice pixel corresponding to the region to be processed.