76results about "Support for heads" patented technology

An apparatus for a spring actuator positioned in a folded spring actuator assembly includes a top section, a middle section, and a bottom section of the spring actuator that form a C-shape for the spring actuator. The middle section includes two parallelized spring legs, where a cable head module is slidable into a gap formed by the top section and two parallelized spring legs of the middle section of the spring actuator.

A wiring circuit board includes a metal supporting substrate, an insulating layer, and a conductive layer in this order in a thickness direction. The conductive layer includes at least one terminal portion and a wiring portion extending from the terminal portion. The metal supporting substrate has an opening portion. The opening portion penetrates the metal supporting substrate in the thickness direction and faces the terminal portion through the insulating layer. The opening portion has a first opening peripheral edge on one side in the thickness direction and a second opening peripheral edge on the other side in the thickness direction. In a projected view in the thickness direction, the second opening peripheral edge is disposed outside the first opening peripheral edge and extends along the first opening peripheral edge.

To provide a suspension capable of suppressing interference between a disk and a slider.SOLUTION: The suspension 10 is provided with a load beam 20 having a dimple part 50 and a flexure 21 having a slider mounting part 30. The convex surface 51 of the dimple portion 50 contacts the slider mounting portion 30. The curvature radius R of the convex surface 51 is less than 0. 10mm, and the gain defined by the following equation is 0.9 or more. Where a is the input amplitude, A is the amplitude, R is the radius of curvature of the convex surface 51, and Fpr is the flexure pitching resistance. k1 is the pitching rigidity of the air bearing, and k2 is the pitching rigidity of the slider mounting portion 30.SELECTED DRAWING: Figure 9

To provide a suspension for a disk device capable of optimizing a profile of an outrigger part.SOLUTION: A sag bent part 55 bent in a thickness direction of a load beam 12 is formed in a part in a length direction of the load beam 12. The load beam 12 includes a first part 12A and a second part 12B with the sag bent part 55 as a boundary. The load beam 12 and a flexure 13 are fixed to each other by a welding part 41 as a fixing part. A slit part 60 is formed around the fixing part. An outrigger supporting part 70 for supporting outrigger parts 33 and 34 is formed inside the slit part 60.SELECTED DRAWING: Figure 1

According to one embodiment, a head gimbal assembly (HGA) of a disk device includes a load beam. The load beam includes two side rails, a plate between the two side rails, a first plane of the plate, a lift tab protruding from an end of the plate, and a protrusion protruding from the first plane and supporting a slider. An edge of each of the two side rails has a first edge, a second edge extending from the first edge toward the lift tab, and a third edge extending from the second edge to the lift tab while being inclined with respect to the first plane so as to approach the first plane. An end of the slider is at the same position as an end of the third edge or is farther from the lift tab than the end of the third edge.

The present invention provides a head gimbal assembly that reduces contact between the flexure and the actuator, a method for manufacturing the same, and a magnetic storage system. [Solution] In a magnetic storage device, the head gimbal assembly 109 includes a load beam 196, a read / write head 134, and an actuator 120 configured to move the read / write head. The head gimbal assembly includes a flexure 140 attached to the actuator. The flexure includes an actuator side 123 facing the actuator and a recess 111 formed on the actuator side that at least partially overlaps the actuator along a virtual plane substantially perpendicular to the length of the load beam.

The present invention provides a wiring circuit board that allows for simple and reliable electrical connection between elements and multiple terminals. [Solution] The wiring circuit board 1 comprises a base insulating layer 2, a plurality of wires 31 of different thicknesses, and a cover insulating layer 4, arranged in order from top to bottom. The plurality of wires 31 include the thickest first wire 311. The wiring circuit board 1 includes a plurality of terminals 32 located on the upper surface of the base insulating layer 2. The plurality of terminals 32 are electrically connected to the plurality of wires 31, respectively. The upper surfaces 321A, 322A of each of the plurality of terminals 32 are located above the upper surface 41A of the cover insulating layer 4 (wiring covering cover portion 41) that covers the first wire 311.

To provide a wiring circuit board containing a copper alloy that combines excellent mechanical strength and excellent conductivity, and a method for manufacturing the same. [Solution] The device comprises a metal support substrate 2, a base insulating layer 3 disposed on one side of the metal support substrate 2 in the thickness direction, and a conductor layer 4 disposed on one side of the base insulating layer 3 in the thickness direction, wherein the metal support substrate 2 and / or the conductor layer 4 contain a copper alloy, the copper alloy contains a first metal made of copper and a second metal that can be alloyed with copper, and the copper alloy in the metal support substrate 2 and / or the conductor layer 4 has a sea-island structure comprising a continuous sea portion and a discontinuous island portion, and also has a lamellar structure.

To provide a method for manufacturing a wiring circuit board that allows for relatively good alignment accuracy. [Solution] In the manufacturing of the wiring circuit board 1, first, a metal support substrate 2 is prepared. Next, a base insulating layer 3 is formed on one side in the thickness direction of the metal support substrate 2. Then, a conductor layer 4 is formed on one side in the thickness direction of the base insulating layer 3. In the process of preparing the metal support substrate 2, the metal support substrate 2 is preheated.

A die set to bend a work including a pair of flange bending parts. The die set includes: a die supporting a first part of the work in a length direction; a pad including a pressure surface which holds the work with the die; and a punch which presses a second part of the work in the length direction in a thickness direction of the work while the first part of the work is held between the die and the pad. The die includes: a flat supporting surface supporting the work; a first relief part including a first inclined surface; and a second relief part including a second inclined surface.

Maintains good write characteristics in a heat-assisted magnetic recording and playback device. [Solution] According to the embodiment, the adjustment method for a heat-assisted magnetic recording and playback device is an adjustment method for a heat-assisted magnetic recording and playback device equipped with a heat-assisted magnetic recording head and a heat-assisted magnetic recording medium, wherein the bit density in the starting area of ​​the recording band and in each area storing information other than user data is changed to be lower than the bit density of the areas other than the starting area in order to improve the write characteristics.

To provide a magnetic recording head, a design method thereof, and a magnetic recording device that provide thermally activated protection against media damage during dynamic events such as operational shocks, load / unload processes, and emergency power-off.SOLUTION: A perpendicular magnetic recording (PMR) read / write transducer head for heat-assisted magnetic recording (HAMR) includes active nano bumper pads formed from thermally activated dynamic flying height (DFH) bulges that protrude closely on either side of the read / write element, and these bumper pads, which can be multiple, are arranged around the perimeter of he transducer head to absorb the heat generated by active heating element, including the write current. When this energy is absorbed, the bulges expand and change shape, protruding closely outward from the slider air bearing surface (ABS), protecting the read / write head from intentional and unintentional touchdowns.SELECTED DRAWING: None

This invention provides a data storage device that controls the torsional mode of a coil and reduces the power consumption of an actuator. [Solution] A voice coil motor assembly (VCMA) 400 for hard disk drives and the like includes a low-density voice coil 407 and a high-density coil reinforcement 408 positioned inside the wire coil. The low-density voice coil, utilizing copper-clad aluminum or aluminum wire, increases the second coil torsion mode frequency of the VCMA, thereby bringing it closer to the second torsion mode frequency of the actuator arm 402. In addition, the high-density reinforcement, utilizing steel, copper, or zinc, increases the mass of the VCMA with respect to the center of mass of the VCMA around the rotation axis of the VCMA, compensating for the lower-density wire. With respect to the position error signal (PES) under customer box vibration conditions, significant peaks in the PES spectrum are largely eliminated, and the power of the PES is reduced by approximately half.

A hard disk drive includes: a plurality of disk media mounted on a main shaft in which an outer diameter of each disk media is offset from an inner diameter of the disk media in the same direction along a rotation axis of the main shaft; and a load / unload ramp positioned to align correspondingly with the outer diameter of the disk media based on the offset. Thus, curvature of irregular disk media, such as curvature associated with thinner and thinner disks, is mitigated by grouping similarly characterized irregular disks together on a given principal axis and compensating for ramps accordingly.

A processing method of a work includes: forming flange bending parts at respective side parts of the work, the flange bending parts including first bending parts extending in a length direction of the work; holding a first part of the work in the length direction where the flange bending parts are formed between a die and a pad; and pressing a second part of the work in the length direction in a thickness direction to form a second bending part extending in a width direction of the work between the first part and the second part. The die includes a supporting surface supporting the work, a first relief part including a first inclined surface, and a second relief part including a second inclined surface.

To provide highly reliable magnetic recording media and magnetic recording / recovery devices. [Solution] A magnetic recording medium having a magnetic layer on a non-magnetic substrate, wherein the height is 0.1 nm or more and 1.5 nm or less, and the width is 1 μm or more and 15 μm or less, and the location of the defect portion having a non-periodic convex shape is specified, or there is no defect portion having a non-periodic convex shape, or the amount of non-periodic convex shape is below a reference value.

The present invention provides a method for manufacturing a magnetic head suspension that can effectively prevent contact marks from being left on the portion of the lift tab tip that engages with the ramp during the tongue orientation confirmation process, which measures the relative orientation of the tongue region with respect to the base plate. [Solution] In the method for manufacturing a magnetic head suspension according to the present invention, during the tongue posture confirmation step, the tip support member that supports the tip region of the lift tab is positioned to support at least one of the ranges of 0.45 × L from the base end of the tip region and 0.2 × L from the tip of the tip region, when the total length of the tip region is L.

To provide actuator assemblies and magnetic disk devices that prevent interference and contact, and offer improved reliability. [Solution] According to the embodiment, the actuator assembly comprises a first head suspension assembly having a suspension having a first surface and a second surface, and a piezoelectric element mounted on the suspension and joined to the suspension by a first conductive adhesive applied to the second surface, and a second head suspension assembly having a suspension having a first surface and a second surface, and a piezoelectric element mounted on the suspension and joined to the suspension by a second conductive adhesive applied to the second surface. The second surfaces of the suspensions of the first head suspension assembly and the second head suspension assembly are facing each other, and the piezoelectric elements are facing each other. The top of the first conductive adhesive is positioned offset in the direction of the suspension relative to the top of the second conductive adhesive.

The present invention provides a wiring circuit board that can suppress contact between a piezoelectric element and an insulating layer while the piezoelectric element is mounted on the wiring circuit board. [Solution] The circuit-equipped suspension substrate 1 comprises a metal support layer 21 having an opening 21A capable of receiving a piezoelectric element Pz1, a first insulating layer 22, a first terminal 12A exposed within the opening 21A and connectable to one end of the piezoelectric element Pz1, and a second terminal 13A exposed within the opening 21A and connectable to the other end of the piezoelectric element Pz1. The first insulating layer 22 has a first portion 224A located within the opening 21A and a second portion 225A located within the opening 21A and thinner than the first portion 224A. The second portion 225A is located between the first terminal 12A and the second terminal 13A and faces the piezoelectric element Pz1.

To provide a data storage device (DSD) that reduces degradation of a slider caused by operation of an energy-assisted magnetic recording technique in the slider while maintaining a safe flying height of the slider.SOLUTION: The DSD100 comprises a magnetic disc 120 and a slider 110b including a write portion configured to magnetically write to the magnetic disc. A voltage is applied to the slider to provide a target offset voltage between the slider and the magnetic disk, wherein the applied voltage is different from a disk voltage of the magnetic disk. In one aspect, a first disk voltage for a magnetic disk is determined. The voltage to be applied to the slider is determined to adjust the potential difference between the slider and the disk to a non-zero target offset voltage.SELECTED DRAWING: Figure 1

To provide a wiring circuit board whose pedestal can be efficiently formed and a wiring circuit board manufacturing method.SOLUTION: A suspension substrate 1 fitted with a circuit includes a wiring region 2 and a loading region 3. The wiring region 2 has part of wires 143A, 143B, 143C, and 143D. The loading region 3 is continuous with the wiring region 2. A slider S is loaded in the loading region 3. The loading region has a pedestal 16A for supporting the slider S. The wiring region 2 has: a metal support layer 11; a first conductor layer 12 which is arranged on the metal support layer 11; a first insulating layer 13 which is arranged on the first conductor layer 12; and a second conductor layer 14 which is arranged on the first insulating layer 13. The second conductor layer 14 forms the wires 143A, 143B, 143C, and 143D. The pedestal 16A has the first conductor layer 12.SELECTED DRAWING: Figure 2

To provide a temperature measuring instrument capable of accurately measuring a temperature using a thermocouple, a device for manufacturing a suspension for a disc device, and a method for manufacturing a suspension for a disc device.SOLUTION: A temperature measuring instrument according to one embodiment comprises: a base having a first surface, a second surface opposite to the first surface, and a first opening part penetrating the first surface and the second surface; a support member having a body part provided on the second surface side and overlapping with the first opening part, and a plurality of extension parts extending from the body part along the second surface and overlapping with the second surface; and a thermocouple inserted into the first opening part and having a measurement unit located in the body part.SELECTED DRAWING: Figure 9

To provide a flexible suspension for hard disk drives that can suppress the deterioration of reliability. [Solution] A flexi-shaft for a hard disk drive suspension according to one embodiment is a flexi-shaft that is superimposed on a load beam provided by the hard disk drive suspension. The flexi-shaft comprises a metal base having a first surface facing the load beam and a second surface opposite to the first surface. The metal base has a mounting portion on which a slider is mounted, a fixing portion provided on the longitudinal side of the metal base toward the tip of the mounting portion and fixed to the load beam, and a pair of limiters arranged in the width direction of the metal base. Each of the pair of limiters includes a planar portion that faces the first surface or the second surface with a gap in the thickness direction of the metal base.

To provide a preamplifier, a disk device, a control device, and an analysis method capable of reducing the number of steps required to analyze detected abnormalities.SOLUTION: A preamplifier 50 provided on a head assembly 30 of a disk device includes: an abnormality detection circuit 72 connected to a head element 31p included in a head 31 of the head assembly 30; a reference resistance element 73 having a resistance value corresponding to a resistance value of the head element 31p and connected to the abnormality detection circuit 72; and a switching unit 74 capable of switching between a first state and a second state. The first state is a state where the abnormality detection circuit 72 and the head element 31p are connected, and the abnormality detection circuit 72 is disconnected from the reference resistance element 73, and the second state is a state where the abnormality detection circuit 72 and the reference resistance element 73 are connected, and the abnormality detection circuit 72 is disconnected from the head element 31p.SELECTED DRAWING: Figure 4

To provide a highly reliable non-magnetic substrate for magnetic recording media. [Solution] A non-magnetic substrate for a magnetic recording medium, which is identified by inspection of the magnetic recording medium 42 as not having a periodic convex shape on its surface, or being below a standard value, wherein the magnetic recording medium has a magnetic layer on the non-magnetic substrate, and in the inspection of the magnetic recording medium by the inspection device 41, the defect portion identified based on the output signal obtained by scanning the surface of the non-magnetic substrate for the magnetic recording medium, which has a magnetic layer formed under heating conditions below a guaranteed temperature, with a thermosensitive resistance element, has a periodic convex shape with a height of 0.1 nm or more and a width of 1 μm or more and a width of 1 μm or more and 15 μm or less.

The present invention provides a method for reducing the spacing between disks while maintaining separation between the flexure of a suspension assembly and magnetic storage disks, and a method for manufacturing a suspension assembly for a magnetic storage system and a magnetic storage device. [Solution] In the head stack assembly 107, the carriage 103 includes a plurality of carriage arms 105 and at least one head gimbal assembly 109 coupled to their distal ends. Each head gimbal assembly includes a suspension assembly 135 and a slider 142. The suspension assembly includes a load beam 196 and a flexure 140. The load beam includes a flexure side, a base plate side 192 facing the flexure side, and a recess 111 formed within the flexure side. The flexure is attached to the flexure side of the load beam at least partially within the recess.

To suppress the occurrence of errors at the time of recording or reproducing data by reducing the difference in level of a lubricant on the surface of a magnetic recording medium.SOLUTION: According to an embodiment, there is provided a method of controlling a heat assisted magnetic recording and reproducing device in which a heat assisted magnetic recording head including a main magnetic pole, a near field transducer that generates near field light, a waveguide that propagates light to the near field transducer, and a laser light source that supplies light to the waveguide, and a heat assisted magnetic recording medium including a lubricant layer on a recording surface facing the heat assisted magnetic recording head are mounted, the method including: And performing a smoothing process of a surface of the lubricant layer by operating the thermally assisted magnetic recording head.SELECTED DRAWING: Figure 1