摘要:
A method of forming a gate electrode of a multi-layer structure includes a step of supplying a processing gas for poly-crystal film formation and impurities of a P-type into a film formation device, to form a poly-crystal silicon layer doped with P-type impurities, on a surface of a gate film target, a step of maintaining the processing target in the film formation device to prevent formation of an oxide film on the poly-crystal silicon layer; and a step of supplying a processing gas for tungsten silicide film formation and impurities of a P-type into the film formation device, to form a tungsten silicide layer doped with impurities of P-type impurities, on the poly-crystal silicon layer on which no oxide film is formed.
摘要:
Pre-coating films are formed in a pretreatment by supplying first film-forming gases into a process chamber of a process vessel while heating the process chamber so as to form a first pre-coating film on the inner surface of the process vessel exposed to the process chamber, followed by supplying second film-forming gases into the process chamber to form a second pre-coating film on the first pre-coating film. A semiconductor wafer is loaded into the process chamber. Then, the first gases are supplied into the process chamber while heating the process chamber so as to form a first layer on the wafer, followed by supplying the second gases into the process chamber so as to form a second layer on the first layer. A silane gas is supplied into the process chamber to permit silicon material to be deposited on the surface of the second layer stacked on the first layer. Finally, the wafer having the first and second multi-film is unloaded out of the process vessel.
摘要:
A first tungsten silicide layer relatively rich in silicon is formed on an object by using a process gas having a phosphorus atom-containing gas added thereto, and a second tungsten silicide layer relatively rich in tungsten is formed on the first tungsten silicide layer, so that a tungsten silicide film is formed. The addition amount of the phosphorus atom-containing gas to the process gas is 0.02 to 0.2% by volume “in terms of a phosphine gas”.
摘要:
A first equalizer of a partial response system such as PR4 and a second equalizer of an extended partial response such as EPR4 are provided and are switched by a selector to the equalizer in which an error rate is reduced and an equalization is executed. After that, read data is decoded by a maximum likelihood detection by a decoder.
摘要:
A magnetic disk device has a large capacity with a small and thin structure and includes a spindle system, an actuator system, a control package for controlling the systems, and a PCMCIA connector. The spindle system is of an in-hub structure wherein two magnetic disks are rotated in inside diameter portions of the magnetic disks. The actuator system has sliders mounting magnetic heads for writing and reading magnetic information to and from the magnetic disks, guide arms and suspension structures. The suspension structures also include a coil, a magnetic circuit for imparting a drive force in cooperation with the coil, a coil holder for supporting the coil, a pivot sleeve for rocking the guide arms, the coil holder and spacers which are integrally laminated to each other, bearings and a pivot shaft. The PCMCIA connector connects to the control package and is fixed by the housing and a package cover.
摘要:
A data storage system primarily comprised of a plurality external storage units, and an interface bus to which the external storage units are connected at respective interface ports, in common with a host computer for managing the external storage units. Each of the interface ports can be changed to a high-impedance state by an external switch, before a disconnection of the related external storage unit from the interface bus.
摘要:
A data storage system primarily comprised of a plurality of external storage units each having a reset switch mounted thereon, and an interface bus to which the external storage units are connected at respective interface ports, in common with a host computer for managing the external storage units. Each of the interface ports can be changed to a high-impedance state by the external reset switch, before a disconnection of the related external storage unit from the interface bus.
摘要:
A magnetic disk apparatus has a rail support which supports guide rails for guiding a carriage on which heads are mounted. The rail support is positioned outside a magnet of a voice coil motor and mounted on a frame. The guide rails are disposed so as to extend across a cavity in the rail support and have their opposite end portions attached to the rail support. The guide rails do not vibrate even if the voice coil motor receives a reaction during head seeking, whereby the head positioning accuracy can be improved and the storage capacity can be increased. The rigidity of the guide rails is increased by supporting the opposite ends of the guide rails. This structure and a coaxial arrangement of a motor coil allow the overall length of the carriage and, hence, the overall size of the apparatus to be reduced.
摘要:
A magnetic disk storage system in which magnetic disk drives can be cooled effectively, and even if a blast device for one of he magnetic disk drives fall into trouble or cease operation, a temperature rise of this magnetic disk drive can be suppressed to the minimum. For this purpose, in the magnetic disk storage system containing a plurality of magnetic disk drives, blase devices ae provided for each of the disk drives, and the disk drives are separated by partitions in which openings are formed so that the cooling air can be passed between adjacent magnetic disk drives. With this structure, even if a blast device for a certain magnetic disk drive is out of order or stopped, a part of the cooling air from a blase device for the adjacent disk drives flows into the magnetic disk drive in question through the openings formed in the partitions, and consequently, the temperature rise of the magnetic disk drive whose blase device ceases operation can be suppressed to the minimum, to thereby enhance the reliability of the magnetic disk storage system.
摘要:
In a voice coil motor having a voice coil, and a magnetic circuit which generates a magnetic flux traversing the voice coil; the magnetic circuit includes a yoke which is divided so as to form a plurality of magnetic paths traversing the voice coil and which is provided with hollows, and adjustment members which are inserted into the hollows so as to adjust the magnetic fluxes of the magnetic paths independently of one another.