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Method for forming diamond-like carbon layers on air load surfaces of magnetic heads

An air bearing surface, diamond technology, used in magnetic recording, instrumentation, data recording, etc., can solve problems such as infeasibility, weak adhesion, and falling off

Active Publication Date: 2012-11-28
SAE MAGNETICS (HK) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this method is not feasible
As mentioned above, the adhesion of the DLC layer attached to the air bearing surface of the head, especially in the pole tip area is very weak, so the DLC layer is easily detached from the air bearing surface after some simple tests

Method used

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  • Method for forming diamond-like carbon layers on air load surfaces of magnetic heads
  • Method for forming diamond-like carbon layers on air load surfaces of magnetic heads
  • Method for forming diamond-like carbon layers on air load surfaces of magnetic heads

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Embodiment Construction

[0033] Preferred embodiments of the present invention are described below in conjunction with the accompanying drawings.

[0034] The invention discloses a method for forming a diamond-like carbon layer on the air-bearing surface of a magnetic head, comprising the following steps: providing a magnetic head arranged in an array with an air-bearing surface; depositing a first diamond-like carbon layer on the air-bearing surface, thereby A mixed layer containing the magnetic head material and the diamond-like carbon layer material is formed on the air bearing surface of the magnetic head; the first diamond-like carbon layer is removed to expose the mixed layer; finally, the second diamond-like carbon layer is formed on the mixed layer. Since the mixed layer has good adhesion to both the air bearing surface and the second diamond-like carbon layer, the second diamond-like carbon layer has good adhesion. In addition, since there is only a single layer of material, for example, only...

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Abstract

The invention discloses a method for forming diamond-like carbon layers on air load surfaces of magnetic heads. The method comprises the following steps of: distributing magnetic heads with an air load surface in an array; depositing a first class of diamond-like carbon layer on the air load surfaces so as to form a mixed layer on the air load surfaces of the magnetic heads, wherein the mixed layer comprises magnetic head material and the material of the first class of diamond-like carbon layer; removing the first class of the diamond-like carbon layer and exposing the mixed layer; and forming a second class of diamond-like carbon layer on the mixed layer.

Description

technical field [0001] The present invention relates to a manufacturing method of an information storage device, in particular to a method for forming a diamond-like carbon layer (diamond-like carbon, DLC) on an air bearing surface (ABS) of a magnetic head of an information storage disk device. Background technique [0002] A magnetic disk drive is a common information storage device. FIG. 1 a shows a conventional disk drive device 200 , in which a disk 101 is mounted on a spindle motor 102 for rotating the disk 101 . A voice coil motor arm (Voice coil motor arm) 104 supports a head gimbal assembly (HGA) 100 having a read / write head 103 . A voice coil motor (voice coil motor, VCM) controls the movement of the magnetic head 103 between the magnetic tracks on the surface of the magnetic disk 101 by controlling the movement of the voice coil motor arm 104, so that the read / write magnetic head reads data from the magnetic disk 101 or transfers data Write to disk 101. During o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B5/127
Inventor 上田国博方宏新王东
Owner SAE MAGNETICS (HK) LTD