摘要:
A head suspension includes a load beam to apply load onto a head that writes and reads information to and from the hard disk and a flexure attached to the load beam and supporting the head. The flexure has write wires and read wires connected to the head. The flexure includes a substrate made of a conductive thin plate, a base insulating layer made of flexible resin and formed on the substrate, and the wires are arranged on the base insulating film. A ground layer is formed at least partly between the substrate and the base insulating layer. The ground layer only corresponds to the write wires in a width direction of the flexure. The conductivity of the ground layer is higher than that of the substrate that is made of a conductive thin plate.
摘要:
A head suspension prevents a read element from electrostatic discharge damage without employing a static electricity remover, and at the same time, secures the frequency characteristics of a write signal. The head suspension has a load beam to apply load to a slider that writes and reads data to and from a hard disk, a flexture made of a conductive thin plate attached to the load beam, to support the slider, write wires connected to the slider and formed on an insulating base layer that is made of flexible resin and is formed on the flexure, and coating made of conductive flexible resin to discharge static electricity. The coating is formed over the read wires and is extended to the surface of the flexure.
摘要:
A head suspension for a disk drive has a flexure extended from a load beam toward a plate. The flexure is structured to prevent fluttering. The head suspension has the plate attached to a carriage and turned around a spindle, the load beam having a rigid part and a resilient part and supported by the plate with the resilient part adjoining an end of the plate, to apply load on a slider arranged at a front end of the load beam, the flexure having a head to write and read data to and from a hard disk and a conductive path to transmit write and read signals to and from the head, the flexure being attached to the load beam and extended toward the plate, and a fixing piece formed on the flexure. The fixing piece is fixed to a resilient material at the end of the plate.
摘要:
A nonvolatile semiconductor memory device includes a silicon substrate, a floating gate electrode formed on silicon substrate with a silicon oxide film therebetween, a control gate electrode formed on a portion of floating gate electrode with an interlayer insulating film therebetween, and an erase electrode formed on another portion of floating gate electrode with an insulating film therebetween. The insulating film includes a silicon nitride film and a silicon oxide film.
摘要:
A pulse generating element formed of a switchable magnetic wire is worked so as to have an arcuate shape such that the ratio R/d between the radius of curvature R and diameter d of the wire in a state free from external force ranges from 65 to 95. This is achieved by subjecting a wire of a ferromagnetic material, such as Fe--Co--V, to drawing-bending work. The pulse generating element, which is obtained by cutting the switchable magnetic wire to a predetermined length, is restricted to a substantially straight state by a retaining member, and undergoes a drastic flux reversal when it is subjected to an alternating field.
摘要:
A positive electrode material for use in lithium batteries contains a compound represented by the chemical formula Li.sub.x Fe.sub.2 (SO.sub.4).sub.3 (0
摘要:
A thick isolation oxide film is selectively formed on a surface of a silicon substrate so as to isolate an element formation region. Ions are implanted into a region in silicon substrate through the thick isolation oxide film. Thus, retrograde wells, having impurity concentration peak positions are formed in the region of silicon substrate positioned under the isolation oxide film. Then, an upper part of the isolation oxide film is removed away to form an isolation oxide film with a reduced thickness. Isolation oxide film has a reduced isolation length L. Thus, a semiconductor device is provided, which permits restriction of the narrow channel effect and the substrate biasing effect when the size of elements is reduced.
摘要:
A cathode material made of anhydrous ferric sulfate with a hexagonal crystal structure is presented for use in a secondary battery which generates a stable open-circuit-voltage of about 3.6 volts and offers a recharge cycling capacity of over 100 times. The cathode material is obtained by heating hydrous iron sulfate material in a temperature range between 250.degree. and 600.degree. C. to remove the water of crystallization. The secondary battery made with this cathode material provides a long-service life and a stable output voltage economically, because the starting material, iron sulfate, is abundantly available at relatively low cost.
摘要:
A semiconductor device in accordance with the present invention comprises: a silicon substrate (1); an insulator layer (2) formed on the silicon substrate; a contact hole (8e) opened through the insulator layer; and a filler of doped silicon (5) grown on the silicon substrate (1) in the contact hole (8e) by solid phase precipitation from an alloy film (6) containing silicon and a doping element.
摘要:
A rotary shaft having a bearing surface and an oil seal surface formed close to each other at a portion of a shaft body rotatably mounted in a case of a transmission, wherein a groove is circumferentially formed on the periphery of the shaft body between the bearing surface and the oil seal surface before each of the surfaces is finished, so that the bearing surface and the oil seal surface can be finished so as to be suitable for their respective functions.