Class 29/603.17 - Employing workholding means

Subclass of Class 29 - Metal working
Definition: Process having means for restraining or supporting the workpiece
No. of patents: 53
Last issue date: 10/28/2008

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Number	Title	Issue Date
7441324	Method for preventing magnetic damage to a GMR head during back-end processing A method is provided for preserving the transverse biasing of a GMR (or MR) read head during back-end processing. In a first preferred embodiment, the method comprises magnetizing the longitudinal biasing layers of the read head in a transverse direction, so that th...	10/28/2008
7337530	Method for manufacturing a shielded pole magnetic head for perpendicular recording A method of making a perpendicular magnetic recording head for use in a data storage device includes forming a first pole layer, a second pole layer, a third pole layer, and a shield layer of a write section. The first pole layer, second pole layer, third pole layer...	03/04/2008
7197814	Method for fabricating a thin film magnetic head A writing magnetic pole portion composed of a first magnetic film and a second magnetic film formed on the first magnetic film via a gap film is fabricated on a given wafer. Then, the writing magnetic pole portion is swung forward and backward around a rotation stan...	04/03/2007
7196872	Sliders bonded by a debondable encapsulant comprising different polymers formed via in situ polymerization A slider assembly is provided comprising a plurality of sliders bonded by a debondable solid encapsulant comprised of different first and second polymers The solid encapsulant is comprised of a polymer prepared by polymerizing an encapsulant fluid comprising a homog...	03/27/2007
7171740	Tape head module assembly method A tape head module assembly method is disclosed. A first and second module holder are placed in an initial alignment with module holder ends facing each other, the module ends each holding a tape head module. A tape wrap angle between the first and second module is ...	02/06/2007
7165308	Dual disk transport mechanism processing two disks tilted toward each other Various apparatus and methods are provided for handling and transporting pairs of gap merge disks. A transfer member is provided in one embodiment which engages the outer perimeter of a pair of disks at three locations. The transfer member is configured to induce an...	01/23/2007
7165317	Electrode extension sheet for use in a lapping apparatus The present invention is an object to provide an apparatus or a method making it possible to easily effect connection between additional electrodes, etc. and lead electrodes when performing a processing for achieving a predetermined throat height value or crown proc...	01/23/2007
7140096	Method of manufacturing a magnetoresistance effect device A method of manufacturing a magnetoresistance effect device, including: forming a first ferromagnetic body, a nonmagnetic dielectric layer on the first ferromagnetic body, and a second ferromagnetic body on the nonmagnetic dielectric layer; etching part of an extern...	11/28/2006
7131185	Method of manufacturing magnetic recording medium A method for manufacturing a magnetic recording medium, including the steps of applying a magnetic coating containing ferromagnetic powder and a binder onto a nonmagnetic band-shaped flexible base material to be transferred to form a magnetic layer, and grinding the...	11/07/2006
7000310	Method of handling a workpiece A method for handling workpieces such as hard disk drive sliders during a debonding process uses a fixture having two sets of finger-like projections that are interleaved. The sets are movable relative to each other to space apart the sliders after they are processe...	02/21/2006
6976302	Slider manufacturing aid In a method to manufacture a bar in which a row of slider sections are aligned, a wafer block is made from a wafer in which rows of slider sections are aligned. The wafer block is bonded to a dummy block on a support plate. Next, a processing step and a cutting step...	12/20/2005
6920685	Method for fabricating a thin film magnetic head A writing magnetic pole portion composed of a first magnetic film and a second magnetic film formed on the first magnetic film via a gap film is fabricated on a given wafer. Then, the writing magnetic pole portion is swung forward and backward around a rotation stan...	07/26/2005
6848166	Method of protecting the pole piece of a magnetic head during the ion mill patterning of the yoke A method of making a magnetic head which protects the front P2 pole tip during the ion mill patterning of the yoke is described. A front connecting pedestal is electroplated over the front P2 pole tip slightly behind the ABS, and a back gap connecting ...	02/01/2005
6829819	Method of forming a magnetoresistive device A magnetoresistive device having a first pole, a second pole, and a first tapered pole pedestal therebetween and magnetically connected to the second pole. The first tapered pole has a width that increases with increasing distance away from the air bearing surface, ...	12/14/2004
6807721	Method for forming a disc stack assembly A method for forming a disc stack assembly suitable for use in a disc drive. A number of discs are loaded onto a spindle motor hub and a disc clamp assembly is installed to secure the discs to the hub. The disc clamp assembly includes an annular retaining ring and a...	10/26/2004
6729013	Method of manufacturing thin-film magnetic head The invention allows a thin-film magnetic head that meets specifications required by the customer to be provided in a short period of time and manufacturing costs to be reduced. A slider of a magnetic head of the invention comprises two thin-film magnetic head eleme...	05/04/2004
6687977	CPP magnetoresistive device and method for making same A magnetoresistive device includes a metal layer, formed over a substrate, in which a groove is formed. A magnetoresistive element is formed in the groove, forming two magnetoresistive element portions that are separated by a conductive element. A sense c...	02/10/2004
6687976	Method of manufacturing magnetic head slider and method of fixing magnetic head slider The invention provides a method of manufacturing a magnetic head slider and fixing a bar which improves fabrication accuracy without increasing manufacturing costs. After thin film magnetic head devices are formed on a wafer, the wafer is cut into bars ea...	02/10/2004
6678939	System for manufacturing a thin film magnetic head A system for manufacturing a thin-film magnetic head having a means for cutting a wafer into bars, each bar having a plurality of thin-film magnetic head sliders which are sequentially coupled with each other, a means for identifying the bar to be worked ...	01/20/2004
6675464	Method of manufacturing a magnetic head A method of manufacturing magnetic heads is provided in which a slider and a back yoke are joined to form a magnetic head main body. The main body is then fixedly bonded to a holding member that supports the magnetic head as a single unit. A plurality of ...	01/13/2004
6668442	Method of manufacturing a thin film magnetic head When manufacturing a thin film magnetic head, a first magnetic pole and a second magnetic pole are magnetically coupled and face each other in a recording-medium-facing surface. A gap layer is in between the first and second magnetic pole. A thin film coi...	12/30/2003
6662433	Method of fabricating the thin film magnetic head A thin film magnetic head includes a lower shielding layer composed of a magnetic material; a nonmagnetic MR gap layer on the lower shielding layer; a magnetoresistive element layer in the MR gap layer facing a recording medium; a lower core layer compose...	12/16/2003
6599170	Method and apparatus for polishing, and lapping jig Disclosed herein is a method of polishing a workpiece having a plurality of resistance elements by operating a plurality of bend mechanisms to push/pull the workpiece with respect to a polishing surface. This method includes the steps of measuring a shape...	07/29/2003
6578257	Semi-automated media rework tool A media rework tool for discs and/or a spindle motor carrying a disc pack is disclosed that has a slider plate mounted on a base for lateral movement between a retracted position and an extended position. The slider plate holds a spindle motor with a disc...	06/17/2003
6553644	Fixture, carrier ring, and method for processing delicate workpieces A device for processing workpieces utilizes a frame and a fixture. The frame has a perimeter with an opening, and inner and outer side walls. A pair of shelves are located in the opening for supporting a workpiece and a spring retains the workpiece on the...	04/29/2003
6484388	Sequential roll-forming process for a stator A process to perform a flaring operation on a rotating electrical device (stator) designed with a number of these spaced axially oriented splines around its perimeter. The design of the stator requires that these perimeter splines possess a flared outer e...	11/26/2002
6434814	Method of manufacturing a magnetic head including a read head with read track width defining layer that planarizes the write gap layer of a write head A method of making a magnetic head that has a read head with a track width includes the steps of depositing a read track width defining material layer on a read sensor material layer; forming a bi-layer photoresist mask on the read track width defining ma...	08/20/2002
6378195	Read/write head with a gimbal ball assembly A fixture for assembling and testing a read/write head comprised of a head gimbal assembly (HGA) that allows gimbaling along pitch and roll axes and that utilizes an inexpensive spherical gimbal ball pressed into an etched hole in the load beam for provid...	04/30/2002
6217425	Apparatus and method for lapping magnetic heads An apparatus for lapping a workpiece including a plurality of magnetic heads supported by a tool is disclosed. The lapping apparatus comprises a rotary lapping table, a lapping head attachment frame, an adjuster ring resiliently supported by the frame, a ...	04/17/2001
6212761	Method for manufacturing thin-film magnetic head A method for manufacturing a thin-film magnetic head includes a step of cutting a wafer into bars, each bar having a plurality of thin-film magnetic head sliders which are sequentially coupled with each other, a step of identifying the bar to be worked to...	04/10/2001
6162114	Slider processing method and apparatus A method and an apparatus are provided for processing a slider having a rail forming part of a medium facing surface of the slider which faces a medium, at least part of an outer side of the rail being located inside a side of the slider. The slider inclu...	12/19/2000
6123608	Crown forming apparatus for forming crown floating type magnetic head Employed is a crown forming method of forming a crown on a floating type magnetic head which includes the steps of placing an approximately rectangular-prism-shaped bar, which has magnetic head elements of not less than 1 formed on a side wall thereof in ...	09/26/2000
6080043	Apparatus and method for achieving positive crown during ABS lap An apparatus and method for producing a positive crown on a slider air bearing surface. The apparatus includes a reference fixture and a carrier which holds the slider and which is positioned adjacent the reference fixture. An actuator is engageable with ...	06/27/2000
6080249	Method for adhering a member and apparatus for adhering a member A method for adhering a member and an apparatus for adhering the member to a base is useful for preventing warping of the member and non-uniformity of the strength of adhesion. After the adhesive application unit is positioned at a first position at a fix...	06/27/2000
5996212	Method of manufacturing a body having a structure of layers Method of manufacturing a multilayer structure, in which method gold is deposited on a basic layer (3, 11) for forming a gold layer (7, 13), whereafter aluminium oxide is deposited on the gold layer for forming an aluminium oxide layer (9, 15). Silicon ox...	12/07/1999
5993290	Magnetic head grinding method and apparatus In the case where an object to be ground is ground by mounting a horizontally elongated jig onto a grinding head and by bringing the object into contact with a grinding surface of a grinding disk being driven and rotated, the attitude of the grinding head...	11/30/1999
5970603	Method for processing magnetic read/write heads A tool, and associated method, for batch processing the definition of air bearing surfaces on rows comprising a plurality of sliders is disclosed. The tool has a main body member having a length defining a y-axis direction, a width defining an x-axis dire...	10/26/1999
5745983	Tool for processing magnetic read/write heads A tool for batch processing the definition of air bearing surfaces on rows comprising a plurality of sliders is disclosed. The tool has a main body member having a length defining a y-axis direction, a width defining an x-axis direction, and a thickness d...	05/05/1998
5735036	Lapping process for minimizing shorts and element recession at magnetic head air bearing surface A method of lapping the air bearing surface of a magnetoresistive head which minimizes the likelihood of interelement shorts at the air bearing surface is described. In a final, linear lapping phase, the air bearing surface is lapped back and forth parall...	04/07/1998
5718036	Method for manufacturing a magnetic head A method for manufacturing a magnetic head includes the process by which a curved sliding surface of a head chip for making contact with a recording medium and a penetrating window of a side surface of the head chip for determining a gap depth are formed ...	02/17/1998

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Class 29/603.17 - Employing workholding means