摘要:
The method of manufacturing a thin-film magnetic head in accordance with the present invention comprises the steps of forming a first magnetic pole layer; removing both sides in a track width direction of the first magnetic pole layer so as to leave a predetermined residual area in the first magnetic pole layer; forming an insulating layer about the residual area of the first magnetic pole layer; forming a gap layer made of a nonmagnetic material; forming a second magnetic pole layer magnetically connected to the first magnetic pole; and patterning the second magnetic pole layer by etching while using a mask. As a consequence, even if an area relatively far from the second magnetic pole layer is eliminated from the gap layer, the insulating layer is mainly exposed from this area. This can prevent magnetic materials from adhering to the root of the second magnetic pole layer and its vicinity during etching.
摘要:
The magnetic head in accordance with the present invention comprises first and second magnetic pole layers, a link part for magnetically linking the first and second magnetic pole layers, and a thin-film coil helically wound about at least one of the first and second magnetic pole layers. The thin-film coil comprises a plurality of inner conductor parts arranged in parallel with each other with an insulating film interposed therebetween, a plurality of first outer conductor parts located on the side of the first or second magnetic pole layer opposite from the side where the inner conductor parts are located, a plurality of second outer conductor parts located on the side of the first outer conductor parts opposite from the side where the inner conductor parts are located, and a plurality of connecting parts for connecting their corresponding inner conductor parts and first and second outer conductor parts.
摘要:
A slider comprises a slider section and an element section. The slider section has a first medium facing surface and an air inflow end. The element section has a second medium facing surface, an air outflow end, and a thin-film magnetic head element. The slider section and the element section are produced separately, and bonded to each other so that the air inflow end and the air outflow end are disposed on opposite sides with the first and second medium facing surfaces in between.
摘要:
On a surface of a bottom pole, a write gap film and first magnetic material film having a high saturation magnetic flux density are formed, and the first magnetic material film is etched to remain a portion extending from an air bearing surface to a throat height zero reference position and a first non-magnetic film is formed in a removed portion. The first non-magnetic material film is polished to obtain a flat surface which is coplanar with a surface of the first magnetic material film. A second magnetic material film having a high saturation magnetic flux density is formed on the flat surface. The second magnetic material film, first magnetic material film, write gap film and bottom pole are partially removed by RIE using a mask formed on the flat surface in accordance with a given pattern to form a track pole having a double-layer structure consisting of bottom and to track poles and a trim structure in a self-aligned manner. A second non-magnetic material film is formed in a space formed by the etching, and a surface of the second non-magnetic material film is polished to have a flat coplanar surface with the top track pole. A thin film coil is formed on the flat surface, and a top pole is formed such that one end is magnetically coupled with the top track pole and the other end is magnetically coupled with the first pole.
摘要:
A reproducing head of a thin-film magnetic head incorporates an MR element, a pair of bias field applying layers located to be adjacent to the side portions of the MR element, and a pair of electrode layers that are located on the bias field applying layers and overlap the MR element. The electrode layers each have a first layer that is laid over part of the top surface of the MR element via a protection layer, and a second layer that overlaps the first layer. In the method of manufacturing the reproducing head, after forming the protection layer on an element-to-be film to make the MR element, a first electrode-to-be film to make the first layers is formed continuously without interposing a step of exposing the protection layer to the air.
摘要:
A slider comprises a slider body and a head element. The slider body has an air bearing surface, an air inflow end and an air outflow end. The air bearing surface has: a first surface including two portions extending in a direction of air passage; a second surface including a portion disposed between the two portions of the first surface; and a third surface located closer to the air outflow end than the first surface is. The first surface and the second surface have such a difference in level that the second surface is located farther from a recording medium than the first surface is. The difference in level varies gradually so as to increase with decreasing distance from the air outflow end. A method of manufacturing the slider includes forming a slider material containing a portion to be the slider body and the head element, and processing the material so as to form the air bearing surface.
摘要:
The method of manufacturing a thin-film magnetic head in accordance with the present invention comprises the steps of forming a first magnetic pole layer; removing both sides in a track width direction of the first magnetic pole layer so as to leave a predetermined residual area in the first magnetic pole layer; forming an insulating layer about the residual area of the first magnetic pole layer; forming a gap layer made of a nonmagnetic material; forming a second magnetic pole layer magnetically connected to the first magnetic pole; and patterning the second magnetic pole layer by etching while using a mask.
摘要:
A track width defining layer includes: a track width defining portion having an end located in the air bearing surface and the other end located opposite to the air bearing surface; and a wide portion coupled to the other end of the track width defining portion. The track width defining layer is formed by frame plating. A frame is formed by exposing and developing a resist layer. The step of exposing the resist layer includes: a first exposure step for forming a first latent image in the resist layer; and a second exposure step for forming a second latent image in the resist layer. The first latent image is made up of a first portion corresponding to the track width defining portion and a second portion adjoining the first portion and extending along the contour of the wide portion. The second latent image is intended for use in combination with the first latent image so as to form a latent image corresponding to the track width defining layer, and does not include a portion corresponding to the track width defining portion.
摘要:
On a surface of a bottom pole, a write gap film and first magnetic material film having a high saturation magnetic flux density are formed, and the first magnetic material film is etched to remain a portion extending from an air bearing surface to a throat height zero reference position and a first non-magnetic film is formed in a removed portion. The first non-magnetic material film is polished to obtain a flat surface which is coplanar with a surface of the first magnetic material film. A second magnetic material film having a high saturation magnetic flux density is formed on the flat surface. The second magnetic material film, first magnetic material film, write gap film and bottom pole are partially removed by RIE using a mask formed on the flat surface.
摘要:
A thin-film magnetic head comprises first and second magnetic pole groups, magnetically connected to each other, having respective magnetic pole parts opposing each other on a side of a medium-opposing surface; a recording gap layer formed between the magnetic pole parts; and a thin-film coil insulated from the first and second magnetic pole groups and wound helically about at least one of them or flatly spirally wound about a junction connecting the first and second magnetic pole groups to each other; which are laminated on a substrate. The thin-film coil comprises a first conductor group having a plurality of inner conductor parts disposed between the first and second magnetic pole groups, and a second conductor group having a plurality of outer conductor parts disposed outside the second magnetic pole group or junction. The first conductor group has an insulating contact structure in which the inner conductor parts are in contact with each other by way of an insulating film. An inner relaxing part comprising a material softer than at least one of the first, second conductor groups and the first, second magnetic pole groups and being in contact with the first conductor group by way of an insulating film is provided.