JPS6043212A - Manufacture of magnetic head - Google Patents

Abstract

PURPOSE:To improve the precision of erase track width by forming a groove in an erase core slider assembly almost at right angles to the direction of the erase track width, and determining the size of th track width. CONSTITUTION:A slider block is molded and then a groove for inserting the short-side part of a nearly L-shaped erase core is cut in the block; and the block is sliced in the groove direction at right angles to the groove, and the groove for inserting the long-side part of the erase core are cut in the sliced surface of a slice piece. An erase core block is also molded in a desired shape and sliced. Then, respective slice pieces are adhered so that erase cores are fitted in grooves of sliders. Then, a groove A is formed almost at right angles to the direction of the track width so that specific erase track width L0 is obtained. At this time, a surface B is polished firstly and a groove A is positioned on the basis of the surface B, thus obtaining the accurate position.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a magnetic head that records, reproduces, and erases information by sliding on a magnetic recording medium such as a floppy disk. Make the slider assembly separately,
The erase core is placed on both sides of the write/read core.
The present invention relates to a method of manufacturing a magnetic head by bonding a slider assembly.

With the rapid spread of office computers and personal computers, the demand for floppy disk drive devices has also increased significantly. In this device, a magnetic head is used to directly write information to and read information from a floppy disk. As such a magnetic head, one whose main part is shown in the exploded perspective view of FIG. 1 is conventionally known.

In this Figure 1, 1 is Rai 1-/Lead 17,
Reference numeral 1a indicates a write/read adapter. Also, 2.
Reference numeral 3 denotes an erase core, a slider, and a j' mount which are respectively adhered to the side surfaces of the write/read 171, and all have the same shape. This erase core slider assembly 2 is composed of an approximately 17-shaped erase core 2a and sliders 2b and 2c, and the erase core slider assembly 3 is composed of an erase core 2a having a shape of approximately 17 and sliders 2b and 2c.
and sliders 3b and 3c.In the manufacturing method of this type of magnetic head, one example of manufacturing the erase core/slider assembly portion is shown in FIG. This manufacturing process will be described below using FIG. 2.

First, after molding the slider block into a predetermined shape (
Step 1.2), Slice to a predetermined thickness (Steps 3 and 4)
). Similarly, the erase core block is molded into a predetermined shape (step 5), and sliced to a predetermined thickness (step 6). Next, collect each slice piece obtained by the above] two culms υ) (2 [, culm 7), Karasu melt @ Lee (
Step 8. However, this figure shows the back side of the one in Figure 1. As a result, the erase core slider assembly is raised (1).To complete the magnetic head, this erase core slider assembly must be glued to both sides of the lie 1-/read core (see Figure 1).
It goes without saying that it is also necessary to install write/read coils and erase coils as well as magnetic circuit components (in manufacturing methods such as 1° or more,
In step 6 and step 6, the erase core will be sized and glass welded in step 7, but since the erase core is an extremely small slice,
There were problems in that not only the processing but also the handling during glass welding was troublesome, and the viscosity of the erase track width (1- in FIG. 1) was low, making it difficult to obtain a magnetic head with stable erase characteristics.

The present invention has been made in consideration of these points, and its purpose is to provide a method for manufacturing a magnetic head that can improve the accuracy of erase and rack width and manufacture a magnetic head with stable erase characteristics. There is a particular thing.

The present invention achieves this object by separately fabricating the write/read core and erase core/slider assemblies, and by attaching the erase core/slider assemblies to both sides of the write/read nearer 1. , a method for manufacturing a magnetic head 1, 11, in which a groove is formed in the erase slot j'/slider assembly in a direction substantially orthogonal to and overlapping the direction of the erase track width; It is a characteristic that determines the quality.

The manufacturing method of the present invention will be explained below using the drawings.

FIG. 3 is an explanatory diagram showing an example of the main steps involved in the method of manufacturing a magnetic head of the present invention. In this manufacturing method, first, a slider block is molded into a predetermined shape (step 1), and then a groove (equivalent to the groove 2g) for inserting the short side portion of the abbreviated erase core is cut into the block (step 2).
). After that, in step 3), the slice is sliced in the direction 1r so as to intersect with the iR, and a groove (corresponding to the groove 2f) for inserting the long side portion of the erase core is cut in the slice surface of the sliced piece (-I Culm 4). The erased core block is also shaped into a predetermined shape (Step 5) and sliced (Step 6). Next, each slice )'l (i.e., slider and erase-1j7) created by the above process is
Assemble and glue so that the erase core fits into iM (corresponding to the groove 21) of the slider (Step 7, however,
This figure shows the back surface side), After that, a groove A is formed in a direction substantially perpendicular to the direction of the erase track width so that the erase track width becomes a predetermined value (1α (1,0). Pi!8 (However, the diagram here is reversed from Step 7).Before this groove machining, the 8th surface in Figure 3 is l1II ni, and this surface is used as a reference. A more accurate position can be obtained by starting the position of the groove Δ.The process of manufacturing a magnetic head using this erase core, slider, and nozzle assembly is exactly the same as the conventional method.
Therefore, the explanation will be omitted.

According to the method of the present invention, which includes each of the above steps as part of the manufacturing process, the erase track width (1±; This processing viscosity can be increased, making it possible to overcome the erase exception to a stable one.In addition, it is also possible to reduce the processing viscosity in step 5.6.

It should be noted that even if conventional culms are used as an intermediate process for making erase cores, sliders, and erasers, as shown in Figure 2, J
,stomach.

As described above, according to the present invention, it is possible to manufacture a magnetic head with an erase track width accuracy of -1-1 and stable erase characteristics.

[Brief explanation of drawings]

Figure 11. II is an exploded perspective view of the erase core slider assembly, FIG. 2 is an explanatory diagram showing the manufacturing process of the erase core slider assembly shown in FIG. 1, and FIG. 3 is an explanatory diagram showing the main steps in the manufacturing method of the present invention. It is. 1...Write/Leat core 2.3...Erase core slider assembly 2a
, 3a...Erase core 2b, 3b...Slider special 311 Applicant: Faster Technology Co., Ltd.
Patent Attorney Fuji Ijima Diagram 1

Claims (1)

[Claims] In a method of manufacturing a magnetic head, the erase core slider is manufactured by manufacturing a magnetic head by separately manufacturing a write/read core and an erase core slider assembly and bonding the erase core slider assembly to both sides of the write/read core. - A method of manufacturing a magnetic head, characterized in that a groove is formed in the assembly in a direction substantially perpendicular to the direction of the nose track width, and the size of the erase track width is determined.