KR860001411A - Magnetic head for vertical magnetic recording and its manufacturing method - Google Patents

Abstract

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Description

Magnetic head for vertical magnetic recording and its manufacturing method

As this is a public information case, the full text was not included.

2 is a plan view showing the positional relationship between the magnetic thin film on the erasing side and the magnetic thin film on the recording / reproducing side and the magnetic thin film on the erasing side;

3 to 4 are perspective views showing the manufacturing process of the slider assembly of the present invention.

* Explanation of symbols for the main parts of the drawings

20, 23: slider material, 22, 25: magnetic thin film, 26: sensor block, 29, 30: magnetic core, 30, 40: block, 31, 41, 42: winding groove, 32, 33, 43, 44: Groove, 34, 35: cutout, 37, 48: leg, 45: protrusion, 50: winding, 51: coil, 63: image core block, 110: slider assembly, 113: magnetic thin film for recording and playback, 114: Magnetic thin film for erasing, 120: core for recording / reproducing side, 130: core for erasing side, 122, 132: leg, 124, 134: winding groove, 125: coil for recording and reproducing, 135: coil for erasing, 140: magnetic insulating spacer, 231 : Slider assembly, 235: Magnetic thin film for recording and reproducing, 236: Magnetic thin film for erasing, 237: Recording and reproducing core, 238,239, 240: Groove 241: First pillar-shaped portion, 242: Coil for recording and reproducing, 243: Erase core, 244,245,246 : Groove, 247: second columnar portion, 248: erasing coil.

Claims (10)

A slider assembly formed of a nonmagnetic material and having a magnetic thin film for recording and reproducing and a magnetic thin film for erasing in a direction perpendicular to the magnetic recording medium, and a vertical ruler made of a magnetic material and provided as erase side cores provided below the slider assembly; In the conventional recording magnetic head, the recording and reproducing magnetic thin film formed on the slider assembly is connected to the leg portion of the recording and reproducing side core, and the erasing magnetic thin film formed on the slider assembly is connected to the leg of the erasing side core. A magnetic head for vertical magnetic recording, which is connected to a negative portion. 2. The magnetic thin film for recording and reproducing according to claim 1, wherein a plurality of grooves are formed in the recording and reproducing core to form a first columnar portion and to mount the coil for recording and reproduction on the first columnar portion. Is connected to the first columnar portion, and a second columnar portion longer than the first columnar portion is formed by providing a plurality of grooves deeper in the erase core than the plurality of grooves. A magnetic head for vertical magnetic recording, wherein the erasing coil is attached to a second columnar portion and the erasing magnetic thin film is connected to the second columnar portion. The recording / reproducing side slider member and the erasing side slider member having a plurality of sets of magnetic thin films formed at predetermined intervals on the surface of a slider material of a planar body made of a nonmagnetic material are combined so that the magnetic films face each other with a nonmagnetic center block therebetween. Later, a cutout for combination with a process confectioner for cutting a predetermined dimension to form a slider assembly is formed, and a plurality of pairs of grooves are formed in a short direction and then cut into a predetermined size to form a recording / reproducing side core. A plurality of pairs are formed in a short direction while providing cutouts for forming a combination groove between the winding groove and the recording / reproducing side core in the longitudinal direction of the magnetic core block body of the rectangular body made of the same magnetic material. The process of forming an erase side core by forming a groove of a groove and then cutting to a predetermined size After the recording and reproducing side core and the erasing core are combined and fixed, the recording and reproducing coil is attached to the leg formed by the winding and the groove of the recording and reproducing side core and erased in the winding groove of the erasing core. And a step of combining the slider assembly of the magnetic core assembly after winding the magnetic core assembly to form a magnetic core assembly. It consists of a nonmagnetic material and a slider assembly in which a magnetic thin film for recording and reproducing and a magnetic thin film for erasing are formed in a direction perpendicular to the magnetic recording medium, and a magnetic material. A recording / reproducing side core block having a recording / reproducing coil: the same as a magnetic material, and having an erasing coil corresponding to the erasing magnetic thin film located near the recording / reproducing side core block at the bottom of the slider assembly. In the magnetic head for vertical magnetic recording formed by joining the erasing core blocks to each other, the positions of the heights of the recording / reproducing coils of the recording / reproducing side core blocks and the erasing coils of the erasing core blocks are different, and both coils are used. A part of which overlaps in plan view from the slider assembly side, A magnetic head for perpendicular magnetic recording. 5. The groove for attaching the recording coil in parallel with the extension direction of the magnetic thin film formed in the erasing core block, and the grooves for the recording coil parallel to the extending direction of the magnetic thin film formed in the erasing core block. Magnetic head for vertical magnetic recording, characterized in that the depth is different. 6. The magnetic head for vertical magnetic recording as claimed in claim 4 or 5, wherein a magnetic insulating spacer is interposed between the bonding surface of the recording / reproducing side core block and the erasing core block. 5. The magnetic head for vertical magnetic recording as claimed in claim 4, wherein the magnetic insulating spacer is made of a thin film. 5. The magnetic head for vertical magnetic recording as claimed in claim 4, wherein the magnetic insulating spacer is made of a thin film. 9. The magnetic head for vertical magnetic recording according to claim 4, 7, or 8, wherein the nonmagnetic material is made of at least one of glass, ceramic, nonmagnetic ferrite, synthetic resin, and nonmagnetic metal. 10. The magnetic head as claimed in any one of claims 4 to 9, wherein the magnetic insulating spacer has a thickness of 1 to 200 mu m. ※ Note: The disclosure is based on the initial application.