Abstract: In a method of forming a main pole, an initial accommodation layer is etched by RIE using a first etching mask having a first opening, whereby a groove is formed in the initial accommodation layer. Next, a part of the initial accommodation layer including the groove is etched by RIE using a second etching mask having a second opening, so that the groove becomes an accommodation part. The main pole is then formed in the accommodation part. The first etching mask has first and second sidewalls that face the first opening and are opposed to each other at a first distance in a track width direction. The second etching mask has third and fourth sidewalls that face the second opening and are opposed to each other at a second distance greater than the first distance.

Abstract: Methods of fabricating magnetic write heads and electrical lapping guides (ELG's) using a split gap deposition process is described. A removal process is performed on a magnetic material to define a main write pole and to define a corresponding ELG for the main write pole. A first non-magnetic gap layer is deposited. A mask and liftoff process is performed to deposit an electrically conductive material on the first gap layer disposed along a front edge of the ELG. A second non-magnetic gap layer is then deposited and a shield is fabricated for the write pole.

Abstract: A method of forming a magnetic head comprises the steps of: selectively exposing through the use of a photomask a photoresist layer unpatterned; forming a pattern for forming a pole layer by developing the photoresist layer after the exposure; and forming the pole layer through the use of the pattern. The photomask includes first to third regions. The first region has such a perimeter that a projection image thereof is shaped along a perimeter of an ideal shape of the top surface of the pole layer. The second region touches the perimeter of the first region, and is located outside the first region. The third region is located inside the first region without touching the perimeter of the first region. The third region suppresses deviation of the pole layer from its desired shape which may be caused by the effect of light reflected while the photoresist layer is exposed.

Abstract: A method for providing at least one transducer including magnetic structure and having an air-bearing surface (ABS) are described. The method includes providing a lapping electronic lapping guide (lapping ELG) and a targeting ELG. The lapping ELG and targeting ELG each are coplanar with the desired thickness of the magnetic structure and have a back edge at the distance from the ABS such that the ELG back edges are substantially aligned with the flare point. The targeting ELG has a front edge at a front edge distance from the ABS corresponding to an intersection of the bevel and the desired thickness. The method further includes lapping the transducer and terminating the lapping based on a first resistance of the lapping ELG and a second resistance of the targeting ELG.

Abstract: A method and system for manufacturing a pole on a recording head is disclosed. The method and system include sputtering at least one ferromagnetic layer and fabricating a hard mask on the ferromagnetic layer. The method and system also include defining the pole and depositing a write gap on the pole. A portion of the pole is encapsulated in an insulator.

Abstract: A method and system for fabricating a microelectric device are described. A write pole of an energy assisted magnetic recording head or a capacitor might be fabricated. The method includes depositing a resist film and curing the resist film at a temperature of at least 180 degrees centigrade. A cured resist film capable of supporting a line having an aspect ratio of at least ten is thus provided. A portion of the cured resist film is removed. A remaining portion of the resist film forms the line. An insulating or nonmagnetic layer is deposited after formation of the line. The line is removed to provide a trench in the insulating or nonmagnetic layer. The trench has a height and a width. The height divided by the width corresponds to the aspect ratio. At least part of the structure is provided in the trench.

Abstract: According to one embodiment, a method for manufacturing a thin film magnetic head includes forming on a substrate magnetic head portions having a magnetoresistive element and resistance detection elements for measuring an amount of polishing; slicing the substrate to form at least one row bar; polishing the ABS of each row bar; forming rails on the polished ABS; and cutting each row bar to separate each magnetic head portion. The step of polishing the ABS includes measuring a resistance of each resistance detection element and a resistance of each magnetoresistive element; calculating an offset value between the resistance detection element and the magnetoresistive element; and calculating a final resistance of the resistance detection element by using the calculated offset value. When the resistance of the resistance detection element reaches the final resistance, polishing of the ABS of the row bar is terminated. Other methods are presented as well.

Abstract: A method of manufacturing a magnetic head, including a magneto resistance effect (MR) element that reads a magnetic recording medium, is disclosed. A multilayer film is formed on a shield layer. Unnecessary portions of the multilayer film are removed from both sides of the MR element in a first direction orthogonal to a lamination direction of the multilayer film and parallel to the MR element surface facing the magnetic recording medium. An insulating layer is formed on a surface exposed by removal of the unnecessary portions. An integrated soft magnetic layer covering both sides of the MR element in the first direction and an upper side of the MR element is formed, thereby configuring a second shield layer. An anisotropy application layer is formed on the second shield layer, thereby providing exchange anisotropy to the soft magnetic layer, and magnetizing the soft magnetic layer in a predetermined direction.

Abstract: A method and system for providing a magnetic recording transducer having a pole are disclosed. The pole has side(s), a bottom, and a top wider than the bottom. The method and system include providing at least one side gap layer that covers the side(s) and the top of the pole. At least one sacrificial layer is provided on the side gap layer(s). The sacrificial layer(s) are wet etchable and cover the side gap layer(s). The magnetic recording transducer is planarized after the sacrificial layer(s) are provided. Thus, a portion of the side gap and sacrificial layer(s) is removed. A remaining portion of the sacrificial layer(s) is thus left. The method and system also include wet etching the sacrificial layer(s) to remove the remaining portion of the sacrificial layer(s). A wrap around shield is provided after the remaining portion of the sacrificial layer(s) is removed.

Abstract: In one embodiment and method of the present invention, a coil of a write head is created by forming a P1 pedestal layer and a back gap layer and further forming a coil pattern consistent with the coil to be formed and insulator spacers dispersed in the coil pattern, using a non-damascene process, thereafter the coil is formed by plating using a damascene process.

Abstract: A method of manufacturing a thermally-assisted magnetic recording head includes: providing a light source unit including a laser diode; providing a slider having a thermally-assisted magnetic recording head section thereon, the thermally-assisted magnetic recording head section including a magnetic pole, an optical waveguide, and a plasmon generator, the magnetic pole and the optical waveguide both extending toward an air bearing surface, the plasmon generator being located between the magnetic pole and the optical waveguide; driving the laser diode to allow a light beam to be emitted therefrom, the light beam including both a TE polarization component and a TM polarization component; performing an alignment between the light source unit and the thermally-assisted magnetic recording head section, based on a light intensity distribution of the TE polarization component in the light beam which has been emitted from the laser diode and then passed through the optical waveguide; and bonding the light source unit

Abstract: A method, including depositing a layer of material onto a base portion of a wafer, is disclosed. The layer of material has a first surface adjacent the base portion. The method also includes depositing a pattern of masking material onto a portion of a second surface of the layer. Material from the layer of material that is unprotected by the pattern of masking material is removed from the layer of material. By removing such material a portion of the layer of material is suspended from the base portion.

Abstract: A method for providing a magnetic recording transducer is described. The method includes providing a pinned layer for a magnetic element. In one aspect, a portion of a tunneling barrier layer for the magnetic element is provided. The magnetic recording transducer annealed is after the portion of the tunneling barrier layer is provided. The annealing is at a temperature higher than room temperature. A remaining portion of the tunneling barrier layer is provided after the annealing. In another aspect, the magnetic transducer is transferred to a high vacuum annealing apparatus before annealing the magnetic transducer. In this aspect, the magnetic transducer may be annealed before any portion of the tunneling barrier is provided or after at least a portion of the tunneling barrier is provided. The annealing is performed in the high vacuum annealing apparatus. A free layer for the magnetic element is also provided.

Abstract: A method fabricates a transducer having an air-bearing surface (ABS). The method includes providing at least one near-field transducer (NFT) film and providing an electronic lapping guide (ELG) film substantially coplanar with a portion of the at least one NFT film. The method also includes defining a disk portion of an NFT from the portion of the at least one NFT film and at least one ELG from the ELG film. The disk portion corresponds to a critical dimension of the NFT from an ABS location. The method also includes lapping the at least one transducer. The lapping is terminated based on a signal from the ELG.

Abstract: A method provides a pole of magnetic recording transducer. A nonmagnetic stop layer having a thickness and a top surface is provided. A depression that forms a bevel is provided in the stop layer. The bevel has a depth less than the thickness and a bevel angle with respect to a remaining portion of the top surface. The bevel angle is greater than zero and less than ninety degrees. An intermediate layer having a substantially flat top surface is provided over the stop layer. A trench is formed in the intermediate layer via a removal process. The trench has a profile corresponding to the pole. The stop layer is a stop for the removal process. The method also includes providing the pole in the trench. The pole has a leading edge bevel corresponding to the bevel in the stop layer.

Abstract: A method for manufacturing a magnetic write head having a write pole with a very narrow track width, straight well defined sides and a well defined trailing edge width (e.g. track-width). The method includes uses two separate chemical mechanical polishing processes that stop at separate CMP stop layers. The first CMP stop layer is deposited directly over a RIEable fill layer. A RIE mask, is formed over the fill layer and first CMP stop layer, the RIE mask having an opening. A trench then is formed in the RIEable fill layer. A second CMP stop layer is then deposited into the trench and over the RIE mask, followed by plating of a magnetic material. First and second chemical mechanical polishing processes are then performed, the first stopping at the first CMP stop and the second stopping at the second CMP stop.

Abstract: Methods for manufacturing a magnetic head for a disk drive. The methods include the steps of depositing a first non-magnetic spacer layer, depositing a plating seed layer on the first non-magnetic spacer layer and plating at least one side shield and a pole tip layer on the plating seed layer, each of the at least one side shield and the pole tip layer separated by a trench. Then the method includes depositing a first non-magnetic material in the trench using ion-beam assisted deposition and planarizing using a chemical-mechanical polishing step.

Abstract: A method of manufacturing a perpendicular magnetic recording head capable of easily and accurately forming a main magnetic-pole layer having a shape suitable for concentrating a magnetic flux is provided. A nonmagnetic layer having a recessed section (a first recessed section and a second recessed section) is formed, and then an additional nonmagnetic layer is formed on an inner surface of the recessed section. Then, a magnetic layer is formed in the recessed section formed with the additional nonmagnetic layer, and then the magnetic layer is cut to form an air bearing surface, so as to form the main magnetic-pole layer.

Abstract: A perpendicular magnetic write head includes: a magnetic pole; a pair of nonmagnetic side gap layers provided on both sides in a track-width direction of the magnetic pole; a nonmagnetic trailing gap layer provided on a trailing side of the magnetic pole; a magnetic shield layer so provided as to surround the magnetic pole with both of the nonmagnetic side gap layer and the nonmagnetic trailing gap layer in between; and a magnetic seed layer formed between the nonmagnetic trailing gap layer and the magnetic shield layer, and having a saturation magnetic flux density higher than that of the magnetic shield layer. The magnetic seed layer is not formed between the nonmagnetic side gap layer and the magnetic shield layer.

Abstract: A method and system provide a magnetoresistive structure from a magnetoresistive stack that includes a plurality of layers. The method and system include providing a mask that exposes a portion of the magnetoresistive stack. The mask has at least one side, a top, and a base at least as wide as the top. The method and system also include removing the portion of the magnetoresistive stack to define the magnetoresistive structure. The method and system further include providing an insulating layer. A portion of the insulating layer resides on the at least one side of the mask. The method and system further include removing the portion of the insulating layer on the at least one side of the mask and removing the mask.

Abstract: A fabricating method of a magnetoresistance sensor is provided with cost effective and process flexibility features. Firstly, a substrate is provided. Then, at least one magnetoresistance structure and at least one bonding pad are formed over the substrate, wherein the bonding pad is electrically connected with the magnetoresistance structure. Then, a passivation layer is formed over the magnetoresistance structure and the bonding pad. Then, a magnetic shielding and concentrator structure is formed over the passivation layer at a location corresponding to the magnetoresistance structure. Finally, bonding pad openings is formed on the passivation layer by patterned polyimide, thereby exposing the bonding pad. After bonding pad was opened, the patterned polyimide can be removed or retained as an additional protection layer.

Abstract: A method for manufacturing a magnetic write head having a non-magnetic step layer, non-magnetic bump at the front of the non-magnetic step layer and a write pole with a tapered trailing edge. The tapered portion of the trailing edge of the write pole is formed by a two step process that allows the write pole taper to be formed with greater accuracy and repeatability than would be possible using a single step taper process. An alternative method is also described on how to make a non-magnetic bump structure with adjustable bump throat height prior to Damascene side shield gap formation in a Damascene wrap around shield head.

Abstract: A method for manufacturing a magnetic write head having a tapered write pole as well as a leading edge taper, and independent trailing and side magnetic shields. The method allows the write pole to be constructed by a dry process wherein the write pole material is either deposited by a process such as sputter deposition or electrically plated and the write pole shape is defined by masking and ion milling. The write pole has a stepped feature that can either be used to provide increased magnetic spacing between the trailing shield and the write pole at a location slightly recessed from the ABS or can be magnetic material that increases the effective thickness of the write pole at a location slightly recessed from the ABS. A bump structure can be further built over that stepped feature to enhance field gradient as well as reduce trailing shield saturation.

Abstract: A method and system for fabricating magnetic transducer are described. The method and system include providing a main pole having a bottom, a top wider than the bottom, and a top bevel. A nonmagnetic gap covering the main pole is provided. A portion of the nonmagnetic gap resides on the top of the main pole. A first seed layer is provided. At least a portion of the first seed layer covers the portion of the nonmagnetic gap on top of the main pole. A portion of the nonmagnetic gap on the magnetic recording transducer is removed after the first seed layer is provided. A second seed layer is provided after the portion of the nonmagnetic gap is removed. The second seed layer covers at least the portion of the first seed layer. A wrap-around shield layer is provided on the second seed layer.

Abstract: A thermally-assisted magnetic head includes a slider including an air bearing surface (ABS) and a waveguide with a core that extends from a light entering surface to the ABS, and a laser diode (LD) unit attached to the light entering surface. The LD unit faces the light entering surface, and a photo detector faces the ABS. A polarizer that only transmits light having a polarization component orthogonal to a polarization direction of linearly polarized laser light is disposed between the ABS and the photo detector. An LD of the LD unit is activated, and the linearly polarized laser light enters the core from the light entering surface. Light radiated from the ABS enters the polarizer, and an alignment of the slider and the LD unit is performed while the photo detector detects the light transmitted through the polarizer.

Abstract: A method of fabricating a tunneling magnetoresistance (TMR) reader is disclosed. A TMR structure comprising at least one ferromagnetic layer and at least one nonmagnetic insulating layer is provided. A first thermal annealing process on the TMR structure is performed. A reader pattern definition process performed on the TMR structure to obtain a patterned TMR reader. A second thermal annealing process is performed on the patterned TMR reader.

Abstract: A method and system for fabricating a perpendicular magnetic recording head, and the head so formed, are described. The method includes depositing an underlayer directly on an insulating layer. The underlayer preferably includes at least one of a nonferromagnetic metal, silicon oxide, and silicon nitride. A pole layer, which has a pole removal rate, is provided on the underlayer. The method and system further include forming a perpendicular magnetic recording pole from the pole layer. The perpendicular magnetic recording pole has a top and a bottom that is narrower than the top. The process of forming the perpendicular magnetic recording pole further includes removing a portion of the pole layer such that a pole removal rate for the pole layer is less than or substantially equal to a removal rate of the underlayer during the removing step.

Abstract: A method for providing energy assisted magnetic recording (EAMR) heads is described. The method comprises bonding a plurality of lasers to a first substrate. The plurality of lasers corresponds to the plurality of EAMR heads and is for providing energy to a plurality of EAMR transducers. The method further comprises fabricating the plurality of EAMR transducers for the plurality of EAMR heads on a second substrate, bonding the first substrate to the second substrate such that the plurality of EAMR transducers and the plurality of lasers reside between the first substrate and the second substrate, removing at least one of the first substrate and the second substrate, and separating a remaining substrate into the plurality of EAMR heads.

Abstract: The method provides a magnetoresistive device. The magnetoresistive device is formed from a plurality of magnetoresistive layers. The method includes providing a mask. The mask covers a first portion of the magnetoresistive element layers in at least one device area. The magnetoresistive element(s) are defined using the mask. The method includes depositing hard bias layer(s). The method also includes providing a hard bias capping structure on the hard bias layer(s). The hard bias capping structure includes a first protective layer and a planarization stop layer. The first protective layer resides between the planarization stop layer and the hard bias layer(s). The method also includes performing a planarization. The planarization stop layer is configured for the planarization.

Abstract: A method provides an EAMR transducer. A sacrificial post is provided on an NFT distal from the ABS. This post has an edge proximate and substantially parallel to the ABS. A sacrificial mask is provided on the NFT between the post and the ABS. Optical material(s) are provided. The post is between the optical material(s) and the ABS. The post is removed. A heat sink post corresponding to the post is provided. The heat sink post has a bottom thermally coupled with the NFT and an edge proximate and substantially parallel to the ABS. Part of the heat sink post is removed, forming a heat sink having a top surface at an acute angle from the ABS. Nonmagnetic material(s) are provided on the optical material(s). A pole having a bottom surface thermally coupled with the heat sink and coil(s) are provided.

Abstract: According to an aspect of an embodiment, a method for manufacturing a storage medium includes providing a medium plate member for forming the storage medium and a guide member; and aligning the medium plate member and the guide member so that the medium plate member and the guide member are placed adjacently and the surfaces of the medium plate member and the guide member form a substantially common plane. The method further includes guiding a burnishing member for burnishing the medium plate member onto the surface of the guide member; and sliding the burnishing member on the guide member onto the medium plate member so as to burnish the surface of the medium plate member.

Abstract: A method for manufacturing a magnetoresistive sensor that results in the sensor having a very flat top magnetic shield. The process involves depositing a plurality of sensor layers and then depositing a thin high density carbon CMP stop layer over the sensor layers and forming a mask over the CMP stop layer. An ion milling is performed to define the sensor. Then a thin insulating layer and magnetic hard bias layer are deposited. A chemical mechanical polishing is performed to remove the mask and a reactive ion etching is performed to remove the remaining carbon CMP stop layer. Because the CMP stop layer is very dense and hard, it can be made very thin. This means that when it is removed by reactive ion etching, there is very little notching over the sensor, thereby allowing the upper shield to be very thin.

Abstract: A method of fabricating a recording head includes depositing an insulator material onto at least a portion of a first member, wherein the insulator material forms an insulator film having a film thickness. The method further includes depositing a writer pole material onto the insulator film, wherein the writer pole material forms a writer pole member, and wherein the insulator film is between the writer pole member and a contact layer. Further, in some embodiments, the film thickness determines the distance between the writer pole member and the first contact member and also determines the distance between the writer pole member and the second contact member.

Abstract: A method and system provide a magnetic transducer that includes an underlayer and a first nonmagnetic layer on the underlayer. The method and system include providing a first trench in the first nonmagnetic layer. The first trench has at least one edge corresponding to at least one side shield. The method and system also include providing a second nonmagnetic layer in the first trench and providing a second trench in the second nonmagnetic layer. The method and system include providing the main pole. At least part of the main pole resides in the second trench. The method and system further include removing at least a portion of the second nonmagnetic layer between the edge(s) and the main pole. The method and system also provide the side shield(s) in the first trench. The side shield(s) extend from at least an air-bearing surface location to not further than a coil front location.

Abstract: A method and apparatus for providing a write head having well-defined, precise write head pole tips. A coplanar write head pole tip processing method provides a thin-film magnetic write head pole tip layer and defines first and second pole tips from the pole tip layer. When the pole tips are provided on a write head, a write gap can be defined using ion milling, E-beam lithography, FAB or can be deposited. The write head pole tips can be used in conjunction with read heads by merging a read head with a write head or a read head can be bonded to a write head in a piggybacked fashion.

Abstract: An example method for manufacturing a magneto-resistance effect element includes forming a free magnetization layer and forming a spacer layer. The spacer layer is formed, for example, by forming a non-magnetic first metallic layer and forming a second metallic layer on a surface of the non-magnetic first metallic layer. A first irradiating process includes irradiating, onto the second metallic layer, first ions or plasma including at least one of oxygen and nitrogen and at least one selected from the group consisting of Ar, Xe, He, Ne, Kr, so as to convert the second metallic layer into an insulating layer and to form a non-magnetic metallic path penetrating through the insulating layer and containing elements of the non-magnetic first metallic layer. A second irradiating process includes irradiating second ions or plasma onto the insulating layer. A non-magnetic third metallic layer is formed on the non-magnetic metallic path.

Abstract: A system according to one embodiment includes a write pole having an end region positioned towards an air bearing surface, a first flare point, and a second flare point positioned between the air bearing surface and the first flare point; and a shield positioned above the write pole, wherein a cross sectional area of the write pole at a point between the first and second flare points along a plane passing through the write pole and oriented about parallel to the air bearing surface is greater than a cross sectional area of the end region of the write pole along a plane oriented parallel to the plane passing through the second flare point. Additional systems and methods are also presented.

Abstract: Embodiments of the invention operate to narrow the track width of a read head used in a disk drive. In one embodiment, a magnetic read head has a track width of about 40 nm or less. The read head is fabricated by a method that includes fabricating a film stack from a substrate, a sensor material, a stop material, a first release material, a mask material, and a photo resist material. The mask material may include a masking substrate material and a second release material. The film stack is processed by forming a read head image in the photo resist material, removing portions of the film stack that lie outside the read head image of the photo resist material, stripping the film stack to remove the photo resist, mask and first release materials, and milling the sensor material according to the read head image.

Abstract: A method for manufacturing a magneto-resistive device. The magneto-resistive device is for reducing the deterioration in the characteristics of the device due to annealing. The magneto-resistive device has a magneto-resistive layer formed on one surface side of a base, and an insulating layer formed of two layers and deposited around the magneto-resistive layer. The layer of the insulating layer closest to the base is made of a metal or semiconductor oxide. This layer extends over end faces of a plurality of layers made of different materials from one another, which make up the magneto-resistive device, and is in contact with the end faces of the plurality of layers with the same materials.

Abstract: In one general embodiment, a method for fabricating magnetic structures using post-deposition tilting includes forming a thin film magnetic transducer structure on a substantially planar portion of a substrate such that a plane of deposition of the thin film transducer structure is substantially parallel to a plane of the substrate. Additionally, the thin film transducer structure is caused to tilt at an angle relative to the plane of the substrate. The thin film transducer is fixed at the angle after being tilted.

Abstract: A method for self aligning a lapping guide with a structure of a write pole. A write pole is formed over a substrate and an electrically conductive material lapping guide material is deposited in a location that is removed from the write pole. A mask is then formed over a portion of the write pole and a portion of the electrically conductive material. A material removal process such as reactive ion etching can then be performed to remove a portion of the magnetic material that is not protected by the mask structure. An magnetic material is then electroplated over the write pole with the write pole, with the mask still in place. In this way, the electroplated material has an edge that is self aligned with an edge of the electrically conductive lapping guide material, both being defined by the same mask structure.

Abstract: One preferred method for use in making a device structure with use of the resist channel shrinking solution includes the steps of forming a first pedestal portion within a channel of a patterned resist; applying a resist channel shrinking solution comprising a resist channel shrinking film and corrosion inhibitors within the channel of the patterned resist; baking the resist channel shrinking solution over the patterned resist to thereby reduce a width of the channel of the patterned resist; removing the resist channel shrinking solution; and forming a second pedestal portion within the reduced-width channel of the patterned resist. Advantageously, the oxide layer and the corrosion inhibitors of the resist channel shrinking solution reduce corrosion in the pedestal during the act of baking the resist channel shrinking solution.

Abstract: A method for providing a PMR pole in a magnetic recording transducer comprises providing a mask on an intermediate layer, the mask including a line having at least one side, providing a hard mask on the mask, a first portion of the hard mask residing on the at least one side and a second portion residing on a surface of the intermediate layer, the hard mask including a dry-etchable layer and a high removal ratio layer on the dry-etchable layer, removing at least part of the first portion of the hard mask, at least a portion of the line being exposed, removing the line, thereby providing an aperture in the hard mask corresponding to the line, forming a trench in the intermediate layer under the aperture using a removal process, and providing the PMR pole, at least a portion of the PMR pole residing in the trench.

Abstract: In a manufacturing process of a head slider, a plurality of head elements are formed on a wafer, each head element comprising: a return pole, a coil, and a main pole. The wafer is cut into respective head elements so that individual head sliders are formed. A ratio of an amplitude of an electrical signal applied to the coil of the write head on the head slider to an amplitude of output from an independent magnetic field sensor not embedded in the head slider is calculated, where the independent magnetic field sensor is disposed near the main pole so as to be opposed to the main pole across the air bearing surface, and where the ratio is calculated while a displacement between the main pole and the magnetic field sensor is swept. A flare point height of the main pole is determined from the calculated amplitude ratio.

Abstract: A method according to one embodiment includes forming a mask above a thin film sensor stack; forming an electrically insulating layer above the mask and sensor stack, the insulating layer having a portion extending along a nonhorizontal end of the mask; selectively removing the insulating layer except for the portion thereof extending along the nonhorizontal end of the mask; removing portions of the sensor stack that are not covered by the mask and the portion of the insulating layer, wherein an end of the portion of the insulating layer positioned away from the mask is about aligned with a back end of the sensor stack after removing the portions thereof; and removing the mask.

Abstract: An MR element includes a first exchange coupling shield layer, an MR stack, and a second exchange coupling shield layer that are arranged in this order from the bottom, and a nonmagnetic layer surrounding the MR stack. The MR stack includes a first free layer, a spacer layer, a second free layer, and a magnetic cap layer that are arranged in this order from the bottom. In the step of forming the MR stack and the nonmagnetic layer, a protection layer is formed on a layered film that will be the MR stack later, and a mask is then formed on the protection layer. Next, the layered film and the protection layer are etched using the mask and then the nonmagnetic layer is formed. After removal of the mask, the protection layer is removed by wet etching.

Abstract: A method of fabricating a magnetic head is provided. The method of fabricating the magnetic head includes forming a writing head on a writing head area, forming an insulating layer having an inclined surface, forming a reading head on the inclined surface of the insulating layer, and forming an air bearing surface by polishing the surfaces of the writing head. Forming the reading head includes forming a first shield layer, a reading sensor, and a second shield layer.

Abstract: A process (and the structure resulting therefrom) is described for manufacturing a magnetic write head in which there is no physical interface between the first and second trailing shields. This is achieved by laying down a sacrificial layer which is patterned to extend inwards towards the top yoke whereby the dimensions and shapes of the shields are defined.

Abstract: A method of manufacturing a magnetic recording medium includes the steps of forming an intermediate layer that is electrically conductive over a non-magnetic substrate; forming an aluminum-containing layer on the intermediate layer; forming a plurality of micro pits in the aluminum-containing layer; generating an alumina-containing layer by anode oxidation of the aluminum-containing layer and simultaneously forming a plurality of nano holes in the alumina-containing layer originating from the plurality of micro pits respectively to expose the intermediate layer; cleaning and drying the plurality of nano holes using a fluid selected from the group consisting of a sub- and super-critical carbon dioxide fluid; and depositing a magnetic metal selectively through the plurality of nano holes on the intermediate layer to form a plurality of magnetic recording elements that collectively form a magnetic recording layer.

Abstract: Provided is a method of manufacturing a perpendicular magnetic recording head which can enhance accuracy and simplify the manufacturing process. The method includes: forming a photoresist pattern having an opening part; forming a non-magnetic layer so as to narrow the opening part by a dry film forming method such as ALD method; stacking a seed layer and a plating layer so as to bury the opening part provided with the non-magnetic layer; and forming a main magnetic pole layer by polishing the non-magnetic layer, the seed layer, and the plating layer by CMP method until the photoresist pattern is exposed. The final opening width is unsusceptible to variations, thus reducing the number of the steps of forming the main magnetic layer.