Abstract: A method of making a magnetic head having an air bearing surface (ABS) composed of a flat and smooth worked surface and having a reduced step produced between a rail portion on the ABS and an element portion. Steps of the method include forming an electromagnetic transducing element including an insulating layer on a board, and then removing only a specific plane of the board opposed to a magnetic recording medium up to a first predetermined depth. Forming an insulating film composed of the same material as that of the element insulating layer on the surface of the board after the removal. Polishing the surface of the element portion and then the insulating film is polished by a chemical mechanical polishing method till the element is exposed. Then forming a recessed portion having a second predetermined depth on the insulating film.

Abstract: The present invention aims to provide a magnetic head having an air bearing surface (ABS) composed of a worked surface being flat and smooth and having a reduced step produced between a rail portion on the ABS and an element portion. For achieving the object, the present invention makes a first predetermined depth deeper than a second predetermined depth in a manufacturing method of a magnetic head, which method executes the following steps. In the method, an electromagnetic transducing element is formed on a board, and then only the specific plane, which is opposed to a magnetic recording medium, of the board is removed up to a first predetermined depth. An insulating film, which is composed of the same material as that of an insulating layer used at the time of the formation of the element, is formed on the surface of the board after the removal and the surface of the element portion, and then the insulating film is polished by a chemical mechanical polishing method till the element is exposed.

Abstract: The present invention aims to provide a magnetic head having an air bearing surface (ABS) composed of a worked surface being flat and smooth and having a reduced step produced between a rail portion on the ABS and an element portion. For achieving the object, the present invention makes a first predetermined depth deeper than a second predetermined depth in a manufacturing method of a magnetic head, which method executes the following steps. In the method, an electromagnetic transducing element is formed on a board, and then only the specific plane, which is opposed to a magnetic recording medium, of the board is removed up to a first predetermined depth. An insulating film, which is composed of the same material as that of an insulating layer used at the time of the formation of the element, is formed on the surface of the board after the removal and the surface of the element portion, and then the insulating film is polished by a chemical mechanical polishing method till the element is exposed.

Abstract: A slider for a magnetic head has air bearing surfaces in a medium opposing surface, and traces of processing are formed in the medium opposing surface excluding the air bearing surfaces to induce a strain in the medium opposing surface whereby the planer structure of the air bearing surfaces is controlled.

Abstract: A method for manufacturing a thin film magnetic head includes a step of preparing a wafer with a thickness greater than a desired slider length for the magnetic head, a step of forming a plurality of thin film magnetic head elements on one surface of the wafer, a step of slicing the wafer to obtain a plurality of bars so that each of the bars includes a plurality of the thin film magnetic head elements, and a step of longitudinally cutting each of the bars in parallel with a first side face of the bar, on which the thin film magnetic head elements are formed, to remove a portion of the bar at the side of a second side face which is opposed to the first side face so that a length of the bar becomes equal to the desired slider length for the magnetic head.

Abstract: A slider for a magnetic head has air bearing surfaces in a medium opposing surface, and traces of processing are formed in the medium opposing surface excluding the air bearing surfaces to induce a strain in the medium opposing surface whereby the planer structure of the air bearing surfaces is controlled.

Abstract: A magnetic head includes a slider provided with at least one reading/writing element wherein the slider has a pair of rail portions projecting with a space therebetween from the surface opposing a magnetic recording medium so as to extend in the direction of air discharge. The slider surface between the pair of rail portions includes first and second grooves formed inside and along rail portions and a flat portion formed between the first and second grooves, wherein the depth .alpha. from the surface of one of the rail portions to the flat portion and the depth .beta. from the flat portion to the bottom of the first or second groove satisfy a relation of .alpha.>.beta..

Abstract: A magnetic head comprises a slider having a flying plane on its one surface opposed to a magnetic recording medium, a reading/writing element attached to the end surface at the air discharge side of the slider and a protective layer formed on the end surface so as to cover the reading/writing element, wherein an edge of the protective layer is inside an edge of the end surface at at least the upper surface which is opposite the flying plane, so that there is formed a space between the edge of the end surface and the edge of the protective layer.