JP2915103B2 - Cleaning method of magnetic head - Google Patents

Description

The present invention relates to a method for cleaning a core slider for a thin film magnetic head, and it is possible to clean both side portions of a core slider for a thin film magnetic head during processing with a roll brush. Cleaning method that can be, or the top surface and side surface of the complex shape of the core slider for thin film magnetic head during processing,
At the same time, the present invention relates to a cleaning method that can be cleaned by a roll brush.

[Prior art] A core slider for a thin-film magnetic head is cut out from a wafer into a block slider shape, and is sequentially processed in a high-precision jig for processing while being temporarily fixed by wax, and after a grinding and groove processing, a high-temperature aging process is performed. Is incorporated. For this reason, core sliders for thin-film magnetic heads
Dirt of the working fluid, wax for fixing, etc. adhere.
In order to remove sticking dirt, cleaning by mechanical rubbing is performed.Conventionally, this cleaning work is usually performed by using a roll brush in the moving direction of the core slider for thin film magnetic heads attached to a common jig. Are arranged and rotated. As a result, the brush tip of the brush is bent and bounced, so that there is a disadvantage that the fixed dirt cannot be sufficiently cleaned. In particular, since the frictional force of the brush of the brush is not applied to both side surfaces of the core slider for the thin film magnetic head, many of the core sliders are dirty and adhered without being rubbed. Therefore, the adhered dirt on the side surface of the core slider for the thin film magnetic head adhered to the common jig is wiped by a human.

In addition, as related to this type of device, for example,
Japanese Patent Publication No. 1-22757 is mentioned.

[Problems to be Solved by the Invention] The above-described conventional technique is characterized in that when the bristle tip of the roll brush rubs the surface of the core slider for the thin film magnetic head, deflection occurs,
And since it bends, the brush tip of a brush does not contact both side parts, and it was difficult to wash both side parts. Therefore, there were the following three problems.

(1) The core slider for a thin-film magnetic head performs high-precision processing in each step, and the processing is performed based on the external shape of the element formed on one side surface. Therefore, if dirt adheres to the element, the processing standard cannot be read, so the dirt is removed manually.

(2) In a wafer state in which an element pattern in an initial step is formed, a number is engraved on a rear surface of the wafer by a laser in units of elements. When the core slider for the thin-film magnetic head is fixed to the common jig, its number is engraved on the side opposite to the side where the element is formed. Cannot read the number.

(3) Since the side surface of the thin film magnetic head core slider is not sufficiently washed in the middle process, dirt attached in the middle process is dragged to the subsequent process, and the dirt is removed from the core slider for thin film magnetic head. To the side of

An object of the present invention is to provide a triangular-shaped guide in opposition to both side portions of the thin-film magnetic head core slider, and to provide a roll brush above the thin-film magnetic head core slider or the triangular shaped guide, An object of the present invention is to provide a method for always and stably removing fixed dirt by rubbing the upper surface and both side surfaces of a core slider for a thin film magnetic head so that not only the upper surface but also both side surfaces are cleaned.

Another object of the present invention is that, in the future, the organic solvent used in the final cleaning in the final step can not be used due to regulations in the future, so as a countermeasure, instead of the organic solvent used in the present invention, It is an attempt to optimize the application of a brush wash that provides sufficient mechanical abrasion using water.

Means for Solving the Problems In order to achieve the above object, the present invention provides a triangular-shaped guide attached to a set jig when a brush of a roll brush rubs a core slider for a thin-film magnetic head. Thereby, the brush of the roll brush is pushed in the horizontal direction and bent (for example, divided in the horizontal direction), and the bristle ends are rubbed on the both side portions, thereby cleaning the both side portions. Furthermore, the upper surface and both side surfaces of the core slider for a thin film magnetic head having a complicated shape can be cleaned at the same time.

[Operation] The present invention provides a method for cleaning the side surface of a core slider for a thin film magnetic head with a rotating jig while the core slider is fixed to a common jig. A triangular-shaped guide is attached to two parts on both sides of the core slider for the magnetic head, and a triangular-shaped guide is attached to the core slider. The brush tip of the roll brush conforms to the shape of the triangular-shaped guide. Then, the cleaning is performed so as to contact the side surface of the core slider for the thin film magnetic head.

Example Hereinafter, an example of the present invention will be described in detail.

FIG. 1 shows a state in which a core slider 1 for a thin-film magnetic head is bonded to a common jig 2. FIG. 3 is an enlarged view of a core slider for a thin-film magnetic head. FIG. 2 shows a roll brush 8, an air cylinder 4, and a magnetic head cleaning device.
The support base 5, the transmission shaft 6, and the rotation support 7 are shown. Third
The figure is a cross-sectional view showing the relationship between the brush 9 of the roll brush and the triangular mountain guide 10.

As shown in FIG. 3, in order to remove dirt adhered to both side surfaces of the core slider for the thin-film magnetic head, the core brush for the thin-film magnetic head is not applied in parallel with the grooves on the upper surface. The brush 9 of the roll brush is provided by a triangular mountain-shaped guide 10 having the same height as the height of both side portions of the roll brush 1.
The hair tips are divided laterally (pressing the hair tips) and rubbing under pressure. According to the present embodiment, there is an effect of mechanically removing dirt adhered to both side surfaces of the thin film magnetic head core slider 1 adhered to the common jig 2 installed on the set jig 11.

Next, the operation will be described. The air cylinder 4 shown in FIG. 2 applies a pressing force of 1 kg ± 100 g downward in the vertical direction by controlling the absorption and discharge of air. The pressure from the air cylinder 4 is transmitted to the roll brush 8 via the transmission shaft 6. In FIG. 3, a common jig 2 is fixed to a set jig 11, and a pressing force is sequentially sent in a direction perpendicular to the axial direction of the rotating roll brush 8. The tip of the brush 9 of the roll brush rotating at 400 rpm or more is laterally divided by a triangular-shaped guide 10 to give a pressurized rubbing force. The brush is divided into a brush contacting the upper surface portion and a brush contacting the side surface portion of the core slider 1 for a thin film magnetic head. Conventionally, both side portions to which no rubbing force is applied can be scrubbed and cleaned. In order to make the triangular mountain-shaped guide 10 a cutting guide, a material suitable for the flocking pitch of the roll brush 8 and the hardness of the bristle tip, such as plastic, metal, and ceramic, can be selected. In the case of the present embodiment, the material of the triangular chevron guide 10 is plastic, and the size is 5 mm for the flocked pitch, for a hair tip of nylon having a hair diameter of 0.2 mm and a hair length of 10 mm. 2mm to 4m width
It has been experimentally confirmed that a triangular chevron shape with a height of 1 mm to 2 mm and a distance of 2 mm to 4 mm from the core slider 1 for the thin film magnetic head is optimal.

According to the present embodiment, wax, which is fixed dirt,
In this state, a large amount of the toner adheres to both side surfaces, and in this state, it can be pressurized and rubbed by the brush tip of the roll brush divided by the triangular mountain type guide of the present embodiment. Dirt can be removed. As a result, there is an effect that the automatic measurement can be performed with high accuracy. In addition, conventionally, since the portion where the accumulated dirt increases can be cleaned, the cleaning at the time of the final cleaning can be easily performed. As described above, the portion where dirt accumulates for fixing and processing the thin-film magnetic head core slider must be used for high-accuracy reference measurement. The rationalization effect can be expected by simplification of the part by manual intervention.

[Effects of the Invention] According to the present invention, when both side surfaces of a core slider for a thin-film magnetic head are dirty, the side surfaces of the core slider are pressurized and rubbed by the bristle tips of a roll brush divided by a triangular-shaped guide. Therefore, it is possible to remove dirt not only on the upper surface of the core slider but also on both side surfaces.

[Brief description of the drawings]

FIG. 1 is a view showing a state in which a thin film magnetic head core slider is adhered to a common jig, FIG. 2 is a view showing a roll brush portion of a magnetic head cleaning apparatus, and FIG. It is a figure which shows the state in which the core slider for thin film magnetic heads of a washing | cleaning apparatus and the triangular-shaped guide are in contact with the brush of a roll brush. 1 ... Core slider for thin film magnetic head, 2 ... Common jig, 3 ... Enlarged view of core slider for thin film magnetic head,
4 ... air cylinder, 5 ... support base, 6 ... transmission shaft, 7 ... rotating support part, 8 ... roll brush, 9 ...
… Roll brush brush, 10 …… Triangle mountain guide, 11 ……
Set jig.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) G11B 5/127-5/17 B08B 1/00-13/00 H01L 21/304 341

Claims (1)

(57) [Claims] 1. A triangular-shaped guide is provided opposite to both side surfaces of a core slider for a thin-film magnetic head, and a roll brush is provided above the core slider for a thin-film magnetic head or the triangular-shaped guide. The brush of the brush
The upper surface of the thin-film magnetic head core slider is rubbed, and the brush of the roll brush is laterally bent by the triangular mountain guide to rub both side surfaces of the thin-film magnetic head core slider. A method for cleaning a magnetic head, comprising: