Abstract: A method is presented for grinding a surface of an elongate bar having a plurality of thin film magnetic elements aligned in a line, each of the thin film magnetic elements having a magnetoresistive sensor for reading a magnetic record from a recording medium and an inductive electromagnetic transducer for writing a magnetic record into the recording medium in a stacked structure, the surface of the bar being a grind surface so that it can be formed into an air-bearing surface by means of the grinding. The method has steps of providing first resistive films on the grind surface in advance along a first longitudinal line parallel to a longitudinal direction of the bar, and providing second resistive films on the grind surface in advance along a second longitudinal line parallel to the longitudinal direction of the bar.

Abstract: A thin-film magnetic head is formed on a support and is provided with a reproducing head part, a recording head part, and a heater for generating heat upon energization. A medium-opposing surface S of the magnetic head is polished while energizing the heater or recording head part.

Abstract: The head slider in accordance with the present invention comprises a thin-film magnetic head including a magnetoresistive device and an electromagnetic transducer, and a heater adapted to generate heat upon energization. At least one of a reproducing bump, a recording bump, and a heater bump includes a bypass layer extending in a direction intersecting a bump extending direction, a first bump portion positioned closer to a pad-forming surface than is the bypass layer, and a second bump portion positioned on the side of the bypass layer opposite from the first bump portion. The first and second bump portions are displaced from each other in the bypass layer extending direction.

Abstract: A thin-film magnetic head comprises at least one of a magnetoresistive device and an electromagnetic transducer, and a heater adapted to generate heat upon energization. A method of making this thin-film magnetic head comprises a heater forming step of forming the heater, and an annealing step of annealing the heater formed by the heater forming step.

Abstract: A thin-film magnetic head comprises at least one of an electromagnetic transducer and a magnetoresistive device, and a heater member adapted to generate heat upon energization. The heater member contains NiCu.

Abstract: The heaters in the respective thin-film magnetic head in the bar are electrically connected to its neighbors, and a variable resistor is connected to each of the heaters in parallel. The resistance of each of the variable resistors is varied depending on the amount that the medium-opposing surface (ABS) of the thin-film magnetic head is to project. Also, the medium-opposing surface of the thin-film magnetic head in the magnetic head bar is polished while energizing all the heaters by the same power supply.

Abstract: In the head slider of the present invention, recording and reproducing electrode pads and heater electrode pads are attached to the same surface of an overcoat layer. The heater electrode pads are located on both sides of a group constituted by the recording and reproducing electrode pads. As a consequence, leads for the heater are located between respective leads for recording and reproducing head parts, whereby crosstalk can be prevented from occurring between the leads for the recording and reproducing head parts.

Abstract: A thin-film magnetic head is formed on a support and is provided with a reproducing head part, a recording head part, and a heater for generating heat upon energization. A medium-opposing surface S of the magnetic head is polished while energizing the heater or recording head part.

Abstract: A thin-film magnetic head has at least either an electromagnetic transducer or a magnetoresistive device, and a sheet-shaped heater for generating heat when energized. The heater has a heating part and a lead part connected in series to the heating part. The lead part has a sheet resistance lower than that of the heating part.

Abstract: A magnetic head part is constituted by a reproducing head part having a GMR device and a recording head part acting as an inductive electromagnetic transducer which are laminated on a support. The magnetic head part further comprises a heater. One of poles of the heater is electrically connected to a heater electrode pad disposed on a first surface of a head slider. The other pole is electrically connected to a substrate constituting the support, and is energized by way of a second surface of the head slider.

Abstract: A heater member is formed in structure including a heater layer with a low electrical resistivity and a cap layer with a higher electrical resistivity, an electrically conductive electrode film is formed thereon, and electrically conductive bumps are formed thereon by plating. Unnecessary part of the electrode film is removed using the bumps as a mask. The heater member generates heat to thermally expand a thin-film magnetic head, whereby the distance is reduced between a recording medium and, a magnetoresistive device and/or an electromagnetic conversion device. During removal of the electrode film part of the cap layer with the higher electrical resistivity in the heater member is removed together with the electrode film, which reduces the variation in the total resistance of the heater member.

Abstract: A thin-film magnetic head on a support includes an electromagnetic transducer for writing, a magnetoresistive device for reading, an overcoat layer and a heating element. The transducer and magnetoresistive device are disposed on the support. The overcoat layer is disposed at the opposite side of them from the support. The heating element is provided in the overcoat layer and generates heat when energized.

Abstract: A write head incorporates a bottom pole layer and a top pole layer that include pole portions, and a write gap layer disposed between the pole portion of the bottom pole layer and the pole portion of the top pole layer. The write head further incorporates a thin-film coil at least a part of which is located between the bottom pole layer and the top pole layer and insulated from these pole layers. Each of the bottom pole layer and the top pole layer includes a pole portion layer and a yoke portion layer. An end of each of the yoke portion layers facing toward an air bearing surface is located at a distance from the air bearing surface.

Abstract: A thin film magnetic head that suppresses “leakage of magnetic flux” and has an excellent overwrite characteristic and a method of manufacturing the same are provided. Between a top pole tip and a bottom pole, first and second non-magnetic layer patterns are disposed in order from the bottom pole. The position of a front end of the second non-magnetic layer pattern recedes rearward of the position of a front end of the first non-magnetic layer pattern, and thereby a step is formed between the first non-magnetic layer pattern and the second non-magnetic layer pattern. Due to the existence of the first and second non-magnetic layer patterns, the propagation of the magnetic flux between the top pole tip and the bottom pole is suppressed, and the flow of the magnetic flux in the top pole tip is smoothed so that the excellent overwrite characteristic can be assured.

Abstract: A recording head has a bottom pole layer and a top pole layer that include pole portions, and a recording gap layer placed between the pole portions. The recording head further has a thin-film coil placed between the bottom and top pole layers, the coil being insulated from the pole layers. The bottom pole layer includes a first layer and a second layer. The first layer is located in a region facing toward the thin-film coil, an insulating layer being placed between the first layer and the coil. The second layer is connected to a surface of the first layer facing toward the thin-film coil. The second layer includes the pole portion and defines a throat height. The thin-film coil is located on a side of the second layer. The first layer has a width that decreases as the distance from an air bearing surface decreases.

Abstract: An inverted hybrid type thin film magnetic head includes a substrate, an inductive recording element and a magnetoresistive reading element. The inductive recording element has a first magnetic film provided on an inner surface of a recessed portion formed in the surface of the substrate and on the surface of the substrate to constitute a pole portion, a thin film coil, a gap film formed on the pole portion of the first magnetic film and on an insulating film which supports and isolates coil turns, and a second magnetic film applied on the gap film and having a pole portion opposed to the pole portion of the first magnetic film via the gap film. The magnetoresistive reading element includes a magnetoresistive film formed within a shield gap film provided on the second magnetic film and a third magnetic film formed on the shield gap film.

Abstract: A thin film magnetic head that suppresses “leakage of magnetic flux” and has an excellent overwrite characteristic and a method of manufacturing the same are provided. Between a top pole tip and a bottom pole, first and second non-magnetic layer patterns are disposed in order from the bottom pole. The position of a front end of the second non-magnetic layer pattern recedes rearward of the position of a front end of the first non-magnetic layer pattern, and thereby a step is formed between the first non-magnetic layer pattern and the second non-magnetic layer pattern. Due to the existence of the first and second non-magnetic layer patterns, the propagation of the magnetic flux between the top pole tip and the bottom pole is suppressed, and the flow of the magnetic flux in the top pole tip is smoothed so that the excellent overwrite characteristic can be assured.

Abstract: A write head incorporates a bottom pole layer and a top pole layer that include pole portions, and a write gap layer disposed between the pole portion of the bottom pole layer and the pole portion of the top pole layer. The write head further incorporates a thin-film coil at least a part of which is located between the bottom pole layer and the top pole layer and insulated from these pole layers. Each of the bottom pole layer and the top pole layer includes a pole portion layer and a yoke portion layer. An end of each of the yoke portion layers facing toward an air bearing surface is located at a distance from the air bearing surface.

Abstract: A thin-film magnetic head having a spin valve effect multi-layered structure including a non-magnetic electrically conductive material layer, first and second ferromagnetic material layers separated by the non-magnetic electrically conductive material layer, and an anti-ferromagnetic material layer formed adjacent to and in physical contact with one surface of the second ferromagnetic material layer. This one surface is an opposite side from the non-magnetic electrically conductive material layer and the multi-layered structure has ends at its track-width direction. The head also has longitudinal bias means formed at both the track-width ends of the multi-layered structure, for providing a longitudinal magnetic bias to the multi-layered structure.

Abstract: An inverted hybrid type thin film magnetic head including a substrate, an inductive recording element provided on the substrate and a magnetoresistive reading element provided on the inductive recording element. The inductive recording element having a first magnetic film provided on an inner surface of a recessed portion formed in the surface of the substrate and on the surface of the substrate to constitute a pole portion, a thin film coil formed within the recessed portion, a gap film formed on the pole portion of the first magnetic film and on an insulating film which supports and isolates coil turns, and a second magnetic film applied on the gap film and having a pole portion which is opposed to the pole portion of the first magnetic film via the gap film. The magnetoresistive reading element includes a magnetoresistive film formed within a shield gap film provided on the second magnetic film and a third magnetic film formed on the shield gap film.