Mounting Preformed Head/core Onto Other Structure Patents (Class 29/603.04)
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Patent number: 7891080Abstract: A method for detecting head-disc contact is disclosed. The method comprises locating a head including a head positioning microactuator and at least one of a read transducer and a write transducer adjacent to a disc such that the head is in communication with the disc, monitoring an output signal from the head positioning microactuator of the head, and evaluating the output signal to determine if the head contacts the disc.Type: GrantFiled: November 6, 2007Date of Patent: February 22, 2011Assignee: Seagate Technology LLCInventors: James C. Alexander, Jason H. Laks
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Patent number: 7893534Abstract: A thermally insulating bonding pad for solder reflow is described. The bonding pad includes a structure. The structure forms the bonding pad. The bonding pad further includes an insulator formed on the structure. The insulator is configured to be interposed between the structure and a substrate of a component onto which said bonding pad is to be disposed. The bonding pad provides thermal insulation for said substrate when said bonding pad is subject to a solder reflow process being performed thereon.Type: GrantFiled: August 10, 2007Date of Patent: February 22, 2011Assignee: Hitachi Global Storage Technologies, Netherlands, B.V.Inventors: Toshiki Hirano, Haruhide Takahashi, Tatsumi Tsuchiya
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Manufacturing apparatus of a head gimbal assembly and manufacturing method of a head gimbal assembly
Patent number: 7891079Abstract: A bending apparatus of a head gimbal assembly includes a suction unit configured to attract the head gimbal assembly, a movement unit configured to move a long tail connected to a terminal part, a stopper against which the moved long tail is butted, a transmission type optical sensor configured to detect that the long tail is positioned to the stopper, a tail holder configured to hold a part of the long tail on a work table, a roller configured to compress the terminal part against the tail holder and to bend the terminal part relative to the long tail at a right angle, and a controller configured to control, based on a detection result of the transmission type optical sensor, a movement of the tail holder to the work table and a movement of the roller to the tail holder.Type: GrantFiled: June 23, 2009Date of Patent: February 22, 2011Assignee: Toshiba Storage Device CorporationInventors: Hiroshi Nozawa, Yukio Kato -
Patent number: 7882616Abstract: In one embodiment, a method can include providing first and second intermediate structures, each having first and second surfaces. Also, the method can include placing the first surface of the first intermediate structure adjacent to the first surface of the second intermediate structure, such that the first and second intermediate structures are in a stacked relationship. Additionally, the method can include simultaneously removing at least a portion of each of the second surfaces of the first and second intermediate structures while in the stacked relationship. Furthermore, the method can include forming a plating layer on each of the first and second surfaces of each of the first and second intermediate structures. Moreover, the method can include forming a magnetic layer on the second surface but not the first surface of each of the first and second intermediate structures.Type: GrantFiled: August 29, 2005Date of Patent: February 8, 2011Assignee: Seagate Technology LLCInventor: Joseph Allen
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Patent number: 7861399Abstract: A method for loading single head in a hard disk drive includes the following steps: mounting a head assembly (30) in a baseplate (10) of a hard disk drive, the head assembly comprising an actuator arm (32), a suspension (34) and a HGA, the baseplate engaging a motor (110) and the HGA is positioned close to the motor; biasing the suspension by a mounting tool (50) from the original position, the mounting tool comprising a cantilever arm (52), a pressing head (54) and a supporting rod (56), wherein, the mounting tool rotates to the suspension and gets down to press the suspension; mounting a disk (90) on the motor in the baseplate; and releasing the pressing head from the suspension, loading the HGA of the head assembly to a parking zone of the disk.Type: GrantFiled: May 14, 2009Date of Patent: January 4, 2011Assignee: ESGW Holdings LimitedInventors: Ming-Goei Sheu, YuQing Niu
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Patent number: 7845067Abstract: A method for assembling an actuator assembly includes providing a first housing portion and a second housing portion; providing a coil, a pole piece, a magnet, and a completed beam; positioning the coil, pole piece, magnet, and completed beam between the housing portions; and coupling the housing portions together.Type: GrantFiled: July 8, 2008Date of Patent: December 7, 2010Assignee: International Business Machines CorporationInventor: David Harper
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Patent number: 7841065Abstract: A load beam having a bent rail, a suspension that includes the load beam, and a related method for manufacturing a load beam. The method includes providing the load beam before the bent rail is formed, and coining the load beam at a location where the bend will occur in the rail.Type: GrantFiled: May 24, 2007Date of Patent: November 30, 2010Assignee: Magnecomp CorporationInventor: Leroy Dwayne Wielenga
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Patent number: 7832082Abstract: A method for manufacturing an integrated lead suspension component. One or more first conductive ground planes are formed on a stainless steel base layer. One or more second conductive ground planes, including portions on the surface of the first conductive ground planes, are formed at void portions and backed portions of the stainless steel base layer. The material of the second conductive ground planes is non-reactive to a first etchant. An insulating layer is formed on the second ground planes on the side opposite the stainless steel base layer and on the stainless steel base layer. Traces are formed on the insulating layer. Voids are formed in void portions of the stainless steel base layer using the first etchant and the second conductive ground planes at the void portions as etch stops.Type: GrantFiled: October 10, 2006Date of Patent: November 16, 2010Assignee: Hutchinson Technology IncorporatedInventors: Reed T. Hentges, Kurt C. Swanson, Peter F. Ladwig
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Patent number: 7823270Abstract: A clamp including an inverted spring portion and a plurality of tabs about a circumference of an inner portion of the clamp. The inverted spring portion of the clamp is insertable into a groove of a clamping interface between a flange and an outer portion thereof to align the plurality of tabs proximate to the flange. As described, the clamp provides a low profile interface for clamping discs to a spindle assembly which snap fits into the groove to provide a screwless clamp interface. Other features and benefits that characterize embodiments of the present invention will be apparent upon reading the following detailed description and review of the associated drawings.Type: GrantFiled: March 2, 2004Date of Patent: November 2, 2010Assignee: Seagate Technology LLCInventors: Victor ChiSiang Choo, SiewMing Ng, Niroot Jierapipatanakul, Pohlye Lirn
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Patent number: 7814643Abstract: A method of redefining nodal points of rotation comprises providing an actuator assembly with a comb, a pivot having an axis of rotation, comb legs on one side of the pivot, a voice coil motor, an arm, and a head gimbal assembly mounted to the arm with a head opposite the arm; defining a first nodal point of rotation for the actuator at a position that is on the arm between the pivot and the head; defining a second nodal point of rotation for the actuator at a position adjacent to the pivot and the coil; moving the first nodal point in a radial direction away from the axis toward the head; and moving the second nodal point in a radial direction away from the pivot to a geometric center of active legs of the coil.Type: GrantFiled: May 18, 2007Date of Patent: October 19, 2010Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Brad Vaughn Johnson, Daniel R. Stacer
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Patent number: 7805827Abstract: In one embodiment of the present invention, a method of producing a magnetic head slider comprises the steps of forming, on the air bearing surface of the slider, an air bearing surface overcoat, removing the surface region from a hard amorphous carbon film by the irradiation with an ion beam which is tilted with respect to a normal to the air bearing surface, and forming a rail in the air bearing surface on which the air bearing surface overcoat has been formed. A high density and covering performance are obtained when the angle of irradiating the ion beam is not smaller than about 60 degrees from a normal to the air bearing surface of the magnetic head slider and when the acceleration voltage for the ion beam is not higher than about 300 V in the step of removing part of the air bearing surface overcoat.Type: GrantFiled: July 12, 2006Date of Patent: October 5, 2010Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Nobuto Yasui, Hiroshi Inaba, Shinji Sasaki, Kazuhito Miyata
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Patent number: 7774923Abstract: A method of fabricating a cartridge for an optical data storage disc includes attaching a plastic shell and a sheet metal cover plate. The shell includes lateral walls and a floor that together define a disc cavity and a plurality of assembly posts. The sheet metal cover plate includes a plurality of holes. To attach the cover plate to the shell, the assembly posts are inserted into the holes, and the ends of the assembly posts are heated to form mushroom caps which hold the cover plate against the shell. The optical disc is housed in the disc cavity, with the data side of the disc facing the cover plate. A sheet metal shutter is wrapped around an edge of the cartridge and over the shell and cover plate.Type: GrantFiled: November 1, 2007Date of Patent: August 17, 2010Assignee: Vmedia Research, Inc.Inventors: Steven B. Volk, Gregory Dimitri Volan, Rene D. Kumar Anirudhan, PK Bala
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Patent number: 7774922Abstract: A method for manufacturing disk drive head suspension components includes supporting the components from carrier strips and/or other components by tab regions consisting substantially of a polyimide insulating layer. The components are detabbed by severing the insulating layer at the tab regions.Type: GrantFiled: February 22, 2007Date of Patent: August 17, 2010Assignee: Hutchinson Technology IncorporatedInventors: Mark M. Kiviahde, Jacob D. Bjorstrom, Ryan D. Kariniemi
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Patent number: 7757379Abstract: A suspension assembly for a hard disk drive includes at least two spring extensions that couple to a proximal portion of a load beam. These spring extensions are disposed by a vertical offset and couple to the load beam on opposite sides of a longitudinal axis of the load beam. The method for operating a disk drive apparatus includes following by a suspension assembly from a reference position to a second position a vertical movement of a rotating disk. The suspension assembly is predisposed to move from the reference position to the second position by the vertical offset. A read/write head coupled to the suspension assembly is in closer alignment to a selected track during the vertical movement in the second position than if the first and second spring extensions were disposed to be co-planar.Type: GrantFiled: July 31, 2008Date of Patent: July 20, 2010Assignee: Magnecomp CorporationInventors: Martin John McCaslin, Khampon Sittipongpanich, Sitthipong Footrakul, Visit Thaveeprungsriporn
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Patent number: 7743486Abstract: A method for assembling a head stack assembly with a disk drive base utilizing a tooling mandrel is described. The head stack assembly includes a pivot bearing cartridge with a shaft and a sleeve. The shaft includes a shaft first end with an engagement feature. The shaft defines an axis of rotation and a shaft outer circumferential surface. The sleeve defines a sleeve inner circumferential surface disposed towards the shaft outer circumferential surface. The tooling mandrel includes a retainer element defining a longitudinal axis and including a distal end. The distal end engages the engagement feature. The tooling mandrel includes tooling fingers angularly fixed to the retainer element with respect to the longitudinal axis. The tooling fingers each include a tip portion. Each tip portion engages the pivot bearing cartridge through cooperative radial movement with respect to the axis of rotation with the distal end engaged with the engagement feature.Type: GrantFiled: May 21, 2009Date of Patent: June 29, 2010Assignee: Western Digital Technologies, Inc.Inventors: Andrew S. Klassen, Joselito S. Jose
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Patent number: 7730604Abstract: A method for assembling a disk drive includes providing a head stack assembly (HSA), providing a shipping comb for assembling the disk drive, inserting a comb pin of the shipping comb into a locating holes in a HSA to assemble the shipping comb with the HSA together, positioning the HSA and shipping comb on a base cover of the disk drive, installing the HSA on the base cover via a bearing device thereof, rotating the assembled HSA and shipping comb to park the HSA on the ramp and aligning the comb pin with the securing hole, pushing the comb pin into a securing hole to lock the HSA in the base cover, assembling a latch device and a top voice coil magnet on the base cover, and rotating out the shipping comb to a position where the shipping comb is not interfered with the disk drive.Type: GrantFiled: December 19, 2008Date of Patent: June 8, 2010Assignee: SAE Magnetics (H.K.) Ltd.Inventors: Ho Yiusing, Canhua Chen, Qinping Zhao, Shenghe Yang
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Publication number: 20100118443Abstract: A suspension board with circuit includes a conductive pattern, a board main body portion on which a magnetic head is mounted, and an auxiliary portion capable of being folded back with respect to the board main body portion so as to face a back surface of the board main body portion. The conductive pattern includes a first conductive pattern including a first terminal electrically connected to an external circuit, and a second terminal electrically connected to the magnetic head, and a second conductive pattern including a third terminal electrically connected to the external circuit, and a fourth terminal electrically connected to an electronic element. Both of the first terminal and the second terminal are disposed on the board main body portion. The third terminal is disposed on the board main body portion or on the auxiliary portion, and the fourth terminal is disposed on the auxiliary portion.Type: ApplicationFiled: November 2, 2009Publication date: May 13, 2010Applicant: Nitto Denko CorporationInventors: Tetsuya Ohsawa, Toshiki Naito
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Patent number: 7694410Abstract: A new fixture which is capable of holding an HAS throughout all processes so that Quasi-Static Test can be done before swaging. Also, a process for testing the HAS by means of the fixture. An embodiment method may include loading head gimbal assemblies and an actuator using an automatic loading machine; in-line dressing of the head gimbal assemblies; ultrasonic bonding of the head gimbal assemblies; testing said head gimbal assemblies in-line while quasi-static; and if an head gimbal assemblies fails to pass the testing, rejecting and reworking in-line; in-line coating of the head gimbal assemblies; ultra-violet curing of the head gimbal assemblies; in-line swaging said head gimbal assemblies and actuator to form an head stack assemblies; and visual checking and unloading of said head stack assemblies.Type: GrantFiled: November 24, 2004Date of Patent: April 13, 2010Assignee: SAE Magnetics (H.K.) Ltd.Inventors: Takehiro Kamigama, Huegung Wang, Yiusing Ho, Chunkau Leung, Waikong Cheung, Shinji Misawa, Jinsuo Sun, Wenxin Chang
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Patent number: 7694411Abstract: An apparatus and associated method is provided for precisely positioning a datum surface of a component. The apparatus has a housing defining a tooling datum surface. A collet is supported by the housing that is selectively operable between a retracted mode and an expanded mode. In the retracted mode a clearing disengagement is defined with the component. In the expanded mode a contacting engagement with the component is defined. The contacting engagement and a simultaneous longitudinal force transferred by the contacting engagement to the component pressingly engage the datum surfaces together. The apparatus further has a bias member exerting the longitudinal force and urging the collet to the retracted mode.Type: GrantFiled: April 23, 2007Date of Patent: April 13, 2010Assignee: Seagate Technology LLCInventors: Sham Sunder Nayar, John George Gerogeorge, Mark Curtis Fahrendorff, Ronald Jacob Smith
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Publication number: 20100085846Abstract: Provided is a method for manufacturing a heat-assisted magnetic recording head, capable of joining a light source unit and a slider with a sufficiently high alignment accuracy. In the method, the unit including a light source is joined to the slider including a head part. First, at least one marker provided on the head-part end surface is set so that the distance from the waveguide incident center to the marker end is substantially equal to the distance from the light-emission center of the light source to the end surface of the light source. After that, the unit and slider are relatively moved while keeping the unit in surface contact with the slider, and the relative positions are set so that the end of the marker coincides with, or is at a distance within an acceptable range from, the edge of the surface of the light source.Type: ApplicationFiled: October 6, 2008Publication date: April 8, 2010Applicant: TDK CORPORATIONInventors: Koji SHIMAZAWA, Yasuhiro ITO
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Patent number: 7681302Abstract: A system and method are disclosed for improving suspension-to-slider attachment in a hard disk drive. A slider having a number of bond pads on its leading edge and a number of bond pads on its trailing edge is to be coupled to a suspension flexure having a number of leading bond pads and a number of trailing bond pads. The slider is to be coupled to the suspension flexure at the leading bond pads and the trailing bond pads by a method such as gold ball, solder ball, or solder bump bonding.Type: GrantFiled: January 27, 2003Date of Patent: March 23, 2010Assignee: SAE Magnetics (H. K.) Ltd.Inventor: Takehiro Kamigama
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Patent number: 7673381Abstract: A method of manufacturing a head suspension includes forming a rigid part chain product where the rigid parts are provided continuously, including forming a plate-like framework for formation of the rigid part including formation margins for formation of the rails and forming a deformable part along a longitudinal curve of each formation margin and forming the rails by bending the formation margins to rise, forming a resilient member chain product where the resilient members are provided continuously, forming the flexures, forming the bases, and a stacking and coupling step stacking and coupling the rigid part chain product, the resilient member chain product, the bases, and the flexures, to form a stacked set, and cutting and separating respective head suspensions from the stacked set.Type: GrantFiled: May 8, 2006Date of Patent: March 9, 2010Assignee: NHK Spring Co., Ltd.Inventors: Kenichi Takikawa, Masao Hanya, Noriyuki Saito
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Patent number: 7661187Abstract: The present invention relates to providing the manufacturing method for a magnetic disk drive that includes the process steps of detecting and processing in a simplified way the defective sectors causing a reading error at low operating environmental temperatures. In one example, defective sectors are detected by read/write testing at high operating environmental temperatures from, for example, 40° C. to 65° C. Reading the data written on the defective sectors makes it obvious that the gain in a high-frequency band is reduced. After test data has been written onto each sector, the filtering coefficient of an FIR element that is set for a data-reading system is changed from the optimum value. The frequency gain is thus reduced. Next, the test data is read and the sectors that have caused a reading error are registered as defectives.Type: GrantFiled: December 5, 2005Date of Patent: February 16, 2010Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Masato Taniguchi, Michio Nakajima, Kaoru Umemura
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Patent number: 7653983Abstract: A manufacturing assembly is disclosed for manufacturing a disk drive. The manufacturing assembly comprises a pre-merge arm having a contact surface for contacting an actuator arm of the disk drive, and an actuator operable to actuate the pre-merge arm. When installing the actuator arm into the base of the disk drive, the actuator is operable to actuate the pre-merge arm in a first direction so that the contact surface biases the actuator arm rotationally about a pivot to bias the lift tab away from the ramp. After installing the actuator arm into the base of the disk drive, the actuator is operable to actuate the pre-merge arm in a second direction opposite the first direction so that the lift tab moves towards and contacts a ramp near an outer periphery of a disk.Type: GrantFiled: June 26, 2007Date of Patent: February 2, 2010Assignee: Western Digital Technologies, Inc.Inventor: Andrew S. Klassen
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Patent number: 7650685Abstract: A method of manufacturing a head suspension for a hard disk drive includes a rigid part chain product manufacturing step forming a rigid part chain product where rigid parts are provided continuously, a flexure manufacturing step forming the flexure integrated with the resilient part and the reinforcing parts, a base manufacturing step forming the base, a stacking and coupling step stacking and connecting the rigid part chain product, the resilient part chain product, the bases, and the flexures, to form the stacked set, and a cutting step cutting and separating respective head suspensions from a stacked set.Type: GrantFiled: May 8, 2006Date of Patent: January 26, 2010Assignee: NHK Spring Co., Ltd.Inventors: Hajime Tada, Masao Hanya, Kenichi Takikawa, Eiji Watadani
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Patent number: 7650686Abstract: A servo track writer (STW) clockhead radius jig is disclosed. One embodiment provides a hard disk drive assembly including a base having a cutaway portion to provide visual access therein. In addition, a disk is mounted in the hard disk drive assembly, this disk having an indicator thereon to indicate a required radius setting for a clockhead.Type: GrantFiled: December 28, 2007Date of Patent: January 26, 2010Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventor: Teodosio Quilapquilap
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Patent number: 7646567Abstract: A FOS is provided for electrically connecting a data transfer head with a PCCA. The FOS comprises a polymeric layer supporting an electrical trace. The electrical trace comprises an uninsulated pad surface configured for electrically engaging a solder interconnect of the PCCA. The polymeric layer comprises a continuous portion covering the pad and opposing the pad surface. A method is provided comprising providing the FOS comprising the electrical trace and the polymeric covering, contactingly engaging the pad surface portion of the trace with the solder interconnect portion of the PCCA, and conducting heat through the polymeric covering to reflow the solder interconnect, thereby electrically connecting the FOS to the PCCA.Type: GrantFiled: June 28, 2005Date of Patent: January 12, 2010Assignee: Seagate Technology LLCInventors: David Daniel Backlund, Rick Pfahl Freeman, Andrew Robert Motzko, Erik Jon Lindquist
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Patent number: 7631419Abstract: A disk processing device holds and rotates a disk with a spindle. Processing tapes are supplied out and wound up by a tape reel unit so as to sandwich and be pressed on both surfaces of the disk through contact rollers. As a crankshaft is rotated, a sliding plate rotates around it and a slidable shaft rotates around a fulcrum part while sliding along the sliding plate such that the contact roller undergoes a reciprocating motion in a radial direction of the disk together with a slider rotatably attached to the slidable shaft.Type: GrantFiled: August 17, 2007Date of Patent: December 15, 2009Assignee: NIHON Micro Coating Co., Ltd.Inventors: Hiromitsu Okuyama, Yuji Horie
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Patent number: 7624495Abstract: A lubricant is applied to swage contact surfaces in a disk drive of the type including a suspension arm connected to an actuator arm by a swaging process. A preferred thin film lubricant may be applied to the contact surfaces by immersion and draining, immersion and raising the part out of the solution, localized spraying, or various deposition processes. Application of the lubricant reduces chipping during de-swaging, particularly with nickel plated metal components. Application of the lubricant has also shown to improve gram load uniformity, reduce adverse distortion to the actuator assembly and reduces torque out retention values. Improved gram load uniformity enhances overall disk drive functioning, reduced distortion preserves intended attitude and flatness of the actions for assembly and reduced torque out retention values improves reworkability of the disk drive.Type: GrantFiled: January 18, 2006Date of Patent: December 1, 2009Assignee: Maxtor CorporationInventors: Mark S. Crowder, Richard E. Rupp, Jr., John McCrandall
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Patent number: 7624496Abstract: A method for creating a disk drive. A slider is installed in a disk drive having at least one unlubricated disk. The slider is designed to be in initial contact. The slider is burnished to the final design point. A vapor phase lubricant reservoir system is installed in the drive either before or after the burnishing step.Type: GrantFiled: August 29, 2003Date of Patent: December 1, 2009Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Walton Fong, Donald Ray Gillis, Remmelt Pit, Mike Suk
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Patent number: 7621037Abstract: An apparatus and associated method is provided for precisely positioning a datum surface of a component. The apparatus has a housing defining a tooling datum surface. A collet is supported by the housing, and is thereby selectively operable between an expanded mode and a retracted mode. In the expanded mode, a clearing disengagement is defined with the component. In the retracted mode, a contacting engagement is defined with the component as well as a simultaneous longitudinal force that is transferred by the contacting engagement to the component capable of pressingly engaging the datum surfaces together. The apparatus further has a bias member urging the collet to the retracted mode.Type: GrantFiled: April 23, 2007Date of Patent: November 24, 2009Assignee: Seagate Technology LLCInventors: Sham Sunder Nayar, John George Gerogeorge, Mark Curtis Fahrendorff, Ronald Jacob Smith
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Patent number: 7614136Abstract: A framing assembly with lower stiffness design and a method of manufacturing that framing assembly are disclosed. In one embodiment, a framing assembly pattern is cut from a piece of a thin planar material, such as metal. The pattern is then bent to form a framing assembly with a base piece, two arms, and supports for a connection plate. In an alternate embodiment, the base piece includes a rear support and a support base. In a further embodiment, excess material surrounding the pattern is cut away so as to allow the most efficient use of the material.Type: GrantFiled: June 27, 2007Date of Patent: November 10, 2009Assignee: SAE Magnetics (H.K.) Ltd.Inventors: Ming-Gao Yao, Masashi Shiraishi, Yi-Ru Xie
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Patent number: 7610672Abstract: There is provided a disk drive that includes a base, a limiting member, an actuator, and a latch. The actuator includes an actuator catch with a catch path. The latch contacts the limiting member with the latch in an open position. The latch is biased to rotate to a defeat position. An arresting portion is in the catch path with the latch in a closed position. The arresting portion is not in the catch path with the latch in the open position, and not in the catch path with the latch in the defeat position. A crash stop portion contacts the actuator with the latch in the closed position and with the actuator in a stop position. The crash stop portion does not contact the actuator with the latch in the defeat position. Also provided is a method of reworking a disk drive having the latch.Type: GrantFiled: July 27, 2006Date of Patent: November 3, 2009Assignee: Western Digital Technologies, Inc.Inventor: Michael K. Liebman
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Patent number: 7596859Abstract: A system is disclosed for maintaining proper alignment of a hard disk micro-actuator and magnetic head with respect to a drive arm's suspension during the curing process of the bonding agent used in their coupling. Embodiments may include a system to couple an actuator element to a suspension element comprising: a shim element to be plated at a first location between an actuator element and a suspension element to maintain a relative orientation of the actuator element with respect to the suspension element during a curing process of a bonding agent at a second location between said actuator element and said suspension element.Type: GrantFiled: October 22, 2002Date of Patent: October 6, 2009Assignee: SAE Magnetics (H.K.) Ltd.Inventors: Minggao Yao, Yiru Xie, Masashi Shiraishi
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Patent number: 7587808Abstract: A method of coupling a voice coil motor to a bowl-type base plate of a hard disk drive is described for a hard disk drive including a voice coil motor having a coil coupled to a rear end portion of an actuator arm, an upper yoke and a lower yoke provided at upper and lower portions of the coil respectively, a bowl-type base plate having a plurality of flattened structures for fastening the lower yoke in a position relative to the bowl-type base plate and a countersink formed in the lower yoke.Type: GrantFiled: January 12, 2007Date of Patent: September 15, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Do-wan Kim, Byoung-gyou Choi
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Patent number: 7584532Abstract: An apparatus for processing a magnetic head slider used for a magnetic disk apparatus for performing a magnetic recording/reproducing process in a discoid recording medium. The apparatus for processing a magnetic head slider includes a discoid recording medium used as an abrasive material, a holding unit configured to hold a suspension arm on which a magnetic head slider is disposed, an elevating unit configured to bring the magnetic head slider into contact with the discoid recording medium in a sliding manner by elevating and lowering the discoid recording medium, and a rotating unit configured to rotate the discoid recording medium at a rotation speed lower than a rotation speed upon the magnetic recording/reproducing process.Type: GrantFiled: March 6, 2006Date of Patent: September 8, 2009Assignee: Fujitsu LimitedInventors: Shunsuke Sone, Hirokazu Yamanishi
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Patent number: 7571535Abstract: A suspension load beam used for attachment to a slider assembly and an actuation arm in a disc drive for data storage has a rigid middle beam section comprising a rigid bottom layer, a rigid top layer and a composite core layer sandwiched between the bottom layer and the top layer. A method for fabricating a vibration resistant mechanical member used a disc drive subject to high frequency motion operations is also disclosed. The method involves making an integral laminate structure and fabricating the mechanical member from the integral laminate structure. The integral laminate structure has a rigid bottom layer, a composite core layer on top of the rigid bottom layer, and a rigid top layer on top of the core layer so that the composite core layer is sandwiched between the rigid bottom layer and the rigid top layer.Type: GrantFiled: April 16, 2007Date of Patent: August 11, 2009Assignee: Seagate Technology LLCInventor: John S. Wright
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Patent number: 7562434Abstract: When crimping suspensions to carriage arms using a metal ball by applying ultrasonic vibration to a crimping tool, the suspensions can be crimped to the carriage arms without causing deformation to the suspensions and the like. A method of assembling a carriage assembly aligns attachment holes provided in front ends of carriage arms and crimping portions provided on suspensions to set the suspensions on the carriage arms and then presses a ball through crimping holes provided in the crimping portions while applying ultrasonic vibration to the crimping tool to crimp the suspensions to the carriage arms. When doing so, a ball, such as a ball whose surface has been subjected to a dimpling process, for which a load that acts on the ball when the ball passes through the crimping holes is low compared to a spherical ball is used to crimp the suspensions to the carriage arms.Type: GrantFiled: May 30, 2006Date of Patent: July 21, 2009Assignee: Fujitsu LimitedInventors: Naoki Ishikawa, Hidehiko Kira, Hiroshi Kobayashi, Takayoshi Matsumura
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Patent number: 7564652Abstract: A head gimbal assembly, including a slider, a suspension having a slider holding plate, and an accessory plate mounted on the suspension having a dimple to partially hold the slider holder plate.Type: GrantFiled: July 6, 2005Date of Patent: July 21, 2009Assignee: SAE Magnetics (H.K.) Ltd.Inventors: Huai Yang, HaiMing Zhou, XianWen Feng
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Patent number: 7559132Abstract: Embodiments of the present invention pertain to method for manufacturing a shock absorber that allows a disk drive to move with respect to the chassis of a computer system. In one embodiment, a flexure is formed that is capable of being coupled to an assembly joint. An assembly joint is formed so that the assembly joint is capable of being coupled to the flexure and the chassis of a computer system. A shock absorber is created by coupling the flexure to the assembly joint. The shock absorber has a form that can be used to flexibly couple the disk drive's enclosure with the computer system's chassis without requiring an increase in size of the chassis.Type: GrantFiled: November 5, 2004Date of Patent: July 14, 2009Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Sri M. Sri-Jayantha, Vijayeshwar D. Khanna, Gerard McVicker
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Patent number: 7549210Abstract: A data storage device is made by molding a portion of a motor into a first enclosure member, and then coupling the first enclosure member to a second enclosure member to define an interior environment for other data storage device components.Type: GrantFiled: September 24, 2004Date of Patent: June 23, 2009Assignee: Seagate Technology LLCInventors: Joo Yong Teo, Niroot Jierapipatanakul, WaiOnn Chee, BoonSeng Ong
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Patent number: 7549214Abstract: Certain example embodiments relate to a method for bonding slider row bars for a photolithography process. A holding device having a sticky surface is formed. A plurality of slider row bars is provided, with each having a first surface for forming an air bearing surface and a second surface opposite the first surface. The slider row bars are secured to the holding device with their first surfaces facing the sticky surface so that the first surfaces of the slider row bars are aligned each other. The slider row bars are bonded together by an encapsulating glue. A carrier is provided, and the carrier is bonded to the second surfaces of the slider row bars. The holding device is removed. The example embodiments also can be used to manufacture sliders.Type: GrantFiled: September 1, 2006Date of Patent: June 23, 2009Assignee: SAE Magnetics (H.K.) Ltd.Inventors: TaiBoon Lee, ZiAn Wang, YongPing Gao, ZhenHua Liu
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Patent number: 7543371Abstract: An automated system for setting the linear distance from a mounting surface of a pivot cartridge to critical features on actuator arms is disclosed. This distance is set to eliminate the tolerance incurred via normal manufacturing of these components. The system adjusts for every component to customize each actuator and/or pivot assembly to meet the functionality requirements for disk drives.Type: GrantFiled: June 23, 2004Date of Patent: June 9, 2009Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: David Joseph Bagaoisan, Steven Hanssen
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Patent number: 7540077Abstract: A method for bonding slider row bars for photolithography process, includes steps of: providing a first carrier plate having a sticky surface; providing slider row bars each having a first surface for forming ABS and an opposite second surface, and securing each slider row bar to the first carrier plate with its first surface facing the sticky surface; providing an encapsulation glue and dispensing it to the second surfaces and gaps between the slider row bars; providing a second carrier plate and attaching it to the second surfaces through the encapsulation glue; irradiating the first carrier plate and the encapsulation glue with ultraviolet light such that the first carrier plate is removed from the slider row bars, and the encapsulation glue is cured to bond the slider row bars with the second carrier plate together.Type: GrantFiled: October 2, 2006Date of Patent: June 2, 2009Assignee: SAE Magnetics (H.K.) Ltd.Inventors: TaiBoon Lee, YongPing Gao
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Patent number: 7536771Abstract: A method for loading single head in a hard disk drive includes the following steps: mounting a head assembly (30) in a baseplate (10) of a hard disk drive, the head assembly comprising an actuator arm (32), a suspension (34) and a HGA, the baseplate engaging a motor (110) and the HGA is positioned close to the motor; biasing the suspension by a mounting tool (50) from the original position, the mounting tool comprising a cantilever arm (52), a pressing head (54) and a supporting rod (56), wherein, the mounting tool rotates to the suspension and gets down to press the suspension; mounting a disk (90) on the motor in the baseplate; and releasing the pressing head from the suspension, loading the HGA of the head assembly to a parking zone of the disk.Type: GrantFiled: March 1, 2007Date of Patent: May 26, 2009Assignee: ESGW Holdings LimitedInventors: Ming-Goei Sheu, YuQing Niu
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Patent number: 7520047Abstract: Apparatus for loading a read/write head to a spinstand has a load area for receiving at least one head to be tested. The apparatus further has a first station having a coarse precisor arranged to provide a coarse positioning of the head. A first automation device is arranged to pick a head from the load area and to deliver it to the coarse precisor. The apparatus has a deck having a test station at which a head can be tested. The deck has a fine precisor arranged to provide a second, fine positioning of the head. A second automation device is arranged to pick a head from the first station and deliver it to the fine precisor where the head can be subjected to a second, fine precising and to pick a head from the fine precisor and to deliver it to the test station.Type: GrantFiled: September 8, 2006Date of Patent: April 21, 2009Assignees: Xyratex Technology Limited, Seagate Technology LLCInventors: Graham Collins, Michael Alan Miles
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Patent number: 7516537Abstract: An existing disk drive storage enclosure is converted into a standalone network storage system by removing one or more input/output (I/O) modules from the enclosure and installing in place thereof one or more server modules (“heads”), each implemented on a single circuit board. Each head contains the electronics, firmware and software along with built-in I/O connections to allow the disks in the enclosure to be used as a Network-Attached file Server (NAS) or a Storage Area Network (SAN) storage device. An end user can also remove the built-in head and replace it with a standard I/O module to convert the enclosure back into a standard disk drive storage enclosure. Two internal heads can communicate over a passive backplane in the enclosure to provide full cluster failover (CFO) capability.Type: GrantFiled: December 7, 2005Date of Patent: April 14, 2009Assignee: Network Appliance, Inc.Inventors: Brad A. Reger, Steven J. Valin
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Publication number: 20090077792Abstract: Embodiments of the present invention help to prevent deformation of a gimbal in detaching a head slider from a suspension. In an embodiment of the present invention, after a head slider has been mounted on a suspension, a test on the assembly is conducted. If a defect head slider is found in the test, the head slider is detached from the suspension. The head slider is discarded but the suspension is reused and a new head slider is mounted on the suspension. In detaching the head slider, a pin inserted in a through-hole on the center line of a gimbal tongue latches the gimbal tongue.Type: ApplicationFiled: September 25, 2008Publication date: March 26, 2009Applicant: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Yoshio Uematsu, Kenjirou Watanabe, Takuya Satoh
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Publication number: 20090080112Abstract: The method of the present invention for assembling a hard disk drive includes the following steps: 1) Position a head stack assembly onto a fixture; 2) position a magnetic block assembly onto the fixture; and 3) move the magnetic block assembly horizontally, making an upper and a lower magnetic blocks of the magnetic block assembly moved in place located at the upper and the lower sides of a coil of the head stack assembly, respectively. The magnetic block assembly of the hard disk drive dedicated for this assembling method includes the upper and the lower magnetic blocks, which are fixedly connected to form a whole, and between which there is a gap for accommodating the coil of the head stack assembly. The entire magnetic block assembly is moved to face the coil of the head stack assembly through a horizontal movement, and thus there is no need for a complicated fixture, making the assembling of the hard disk drive simpler and faster without damaging the disc.Type: ApplicationFiled: December 18, 2006Publication date: March 26, 2009Inventor: Quan Chen
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Patent number: 7506427Abstract: A method of assembling a carriage assembly is disclosed. The method is are capable of suppressing fluctuation in the crimped (deformed) states of spacer portions when suspensions are attached to carriage arms. The method aligns fitting holes 10a provided in carriage arms 10 with spacer holes 12b of suspensions 12. Then the method passes a ball 20 with a diameter equal to or greater than an inner diameter of the spacer holes 12b through the spacer holes 12b to crimp edge portions of the spacer holes 12b in spacer portions 12a and thereby attach the suspensions 12 to the carriage arms 10. While the ball 20 is being pressed and sandwiched from both sides of the spacer holes 12b by two pressure-applying members 40a, 40b an ultrasonic vibration is applied to the two pressure-applying members 40a, 40b, the two pressure applying members 40a, 40b are moved so as to pass the ball 20 through the spacer holes 12b.Type: GrantFiled: February 28, 2006Date of Patent: March 24, 2009Assignee: Fujitsu LimitedInventors: Takayoshi Matsumura, Naoki Ishikawa, Hiroshi Kobayashi, Hidehiko Kira