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Vertically writing-in magnetic head

A magnetic head and track technology, applied in the direction of magnetic recording head, orthogonal magnetization magnetic head, manufacturing magnetic head surface, etc., can solve serious and other problems

Inactive Publication Date: 2002-07-03
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] As the track density increases, the coverage of the adjacent track T2 by the bottom pole 12 becomes more serious, so this coverage becomes a problem when the recording density is increased

Method used

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  • Vertically writing-in magnetic head
  • Vertically writing-in magnetic head
  • Vertically writing-in magnetic head

Examples

Experimental program
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Embodiment Construction

[0027] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0028] see Figure 5 , the magnetic head 100 of one embodiment of the present invention comprises a magnetic resistive magnetic head 140 which reads information from the record carrier and an inductive write magnetic head which writes information on the record carrier, and these two magnetic heads are all on the substrate 101 . The magnetic resistive head 140 detects magnetic signals written on the record carrier. An inductive write head comprising a top pole 110, a bottom pole 120 and a write coil 130 serving as a current supply line generates a certain amount of leaking magnetic flux to write on a record carrier. Enter the given information.

[0029] Such as Figure 5 and 6 As shown, the present invention is characterized in that the width Wb of the bottom electrode 120 is smaller than the width Wt of the top electrode 110 . More preferab...

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PUM

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Abstract

Provided is a vertical writing type magnetic head including a substrate, a bottom pole formed on the substrate, and a top pole aligned with and spaced a predetermined distance apart from the bottom pole, wherein the bottom pole has a narrower width than the top pole. The magnetic write head is constructed such that the width of a bottom pole is narrower than that of a top pole, thereby reducing extension of a magnetic field at sides of a top pole and effectively preventing erasure of information of an adjacent track due to the bottom pole overlapping the adjacent track when there is a constructional skew in a hard disk drive.

Description

technical field [0001] The present invention relates to a magnetic head for writing or reading magnetic signals on or from a record carrier and, in particular, to a vertical writing type magnetic head with an improved write magnetic head. The top and bottom poles of the signal. Background technique [0002] Typically, a device for writing / reading magnetic signals on / from a record carrier, such as a hard disk drive, comprises a magnetic head for writing and reading information. Such as figure 1 Shown, magnetic head 10 is installed on the slider 20 that is arranged on the end of swing arm 30, and by the rotation of swing arm 30, magnetic head 10 moves to the magnetic track place on the required position of record carrier (not shown), with Perform write or read operations. [0003] figure 2 yes figure 1 An enlarged schematic view of the magnetic head 10 is shown. Such as figure 2 As shown, the magnetic head 10 includes a magnetic resistance magnetic head for reading in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B5/31G11B5/127G11B5/187G11B5/39G11B5/48
CPCG11B5/1278G11B5/1871G11B5/4886G11B5/39
Inventor 金庸洙任映勳
Owner SAMSUNG ELECTRONICS CO LTD