JPH0198115A - Production of composite floating magnetic head - Google Patents

Abstract

PURPOSE:To stabilize the gap depth by providing a slider consisting of a nonmagnetic material with a core insertion groove and providing an angle determining groove orthogonal to a magnetic head core chip on the side face part of the magnetic gap part of this core chip at the time of melt-fixing the core chip to said core insertion groove. CONSTITUTION:A magnetic head core chip 7 is provided with an angle determining insertion groove 6 and it is fixed to a projecting part 9 of a jig 8 by a pincette or the like while being confirmed with a microscope. The magnetic head core chip 7 is set into a core chip insertion groove 5 of a slider 4 while being confirmed with the microscope. When this operation is repeated several times to terminate setting of the chip 7 and the slider 4 on the jog 8, a push rod 1 is set, and a melt-fixing glass is fused at an about working temperature in a furnace to unify the chip 7 and the slider 4. Thus, the position of the chip 7 to the slider 4 is not deviated and an arbitrary gap depth is obtained in the succeeding working process.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a composite hot-floating magnetic head used in a magnetic recording/reproducing device, particularly a fixed magnetic disk device.

[Conventional technology]

Conventionally, the magnetic head core chip shown in FIG. 2 was set in the core insertion groove 5 of the slider 4 made of non-magnetic material (OaT, 103, etc.) on the jig shown in FIG. [Problem to be Solved by the Invention] However, in the above-mentioned conventional technology, when the slider 4 and the magnetic head core chip are fused together, the position of the magnetic head core chip may be misaligned within the slider insertion groove. This causes a problem in that the depth of the magnetic gap (hereinafter referred to as a gap) varies, which increases the variation in the recording and reproducing characteristics of the magnetic head, resulting in a low yield. The present invention is intended to solve these problems, and its purpose is to manufacture an FFL head with small gap depth variations and good recording and reproducing characteristics at a high yield.

[Means for solving problems]

The method for manufacturing a composite thermally floating magnetic head of the present invention includes forming a core insertion groove 5 in a slider 4 made of a non-magnetic material, and fixing a magnetic head core chip to the core insertion groove 5 by fusion bonding to the magnetic recording medium. In a floating composite thermal floating magnetic head,
The magnetic head core chip may be fixed and fused by providing a groove perpendicular to the magnetic head core chip on a side surface of the magnetic gap portion of the magnetic head core chip.

〔Example〕

FIG. 1 is a side view of an embodiment of the invention. As shown in FIG. 1, an insertion groove 6 is provided in the magnetic head core chip 7,
It is fixed to the protruding portion 9 of the jig 8 using tweezers or the like while looking through a microscope. Next, as shown in FIG. 5, the magnetic head core chip 7 is inserted into the core chip insertion groove 5 of the slider 4.
Set it while watching with a microscope so that it fits. This operation is repeated several times until the magnetic head core chip 7 and slider 4 are set on the jig 8, and then the push rod 1 is set as shown in FIG. After that, as shown in Figure 1,
The fused glass 3 is melted in a furnace at around the working temperature (temperature at which the viscosity is 104 poise) to integrate the magnetic head core chip 7 and the slider 4. In the slider body 4 obtained in this manner, the positional displacement of the magnetic head core chip 7 does not occur, so that the gap depth can be set to an arbitrary dimension in the subsequent processing steps. Further, after the slider is fused together, the groove for determining the degree may be machined.

〔Effect of the invention〕

As described above, according to the present invention, by providing the grooves perpendicular to the side surface of the magnetic head core chip, it is possible to easily machine any gap depth, and the magnetic head has good recording and reproducing characteristics with a stable gap depth. It has the effect that it can be manufactured with high yield.

[Brief explanation of the drawing]

FIG. 1 is a side view of an embodiment of the present invention during fusion. FIG. 2 is a perspective view of a conventional core chip. FIG. 3 is a perspective view of the integrated slider. FIG. 4 is a perspective view of the core chip of the present invention. FIG. 5 is a side view of conventional fusion bonding. 1... Presser bar 2... Magnetic gap 3... Fusion glass 4... Slider 5 ......Core chip insertion groove 6...
...Degree groove 7...Magnetic head core chip 8...
...Fusing jig and above Applicant Seiko Epson Co., Ltd. agent Patent attorney Mogamiji (1 other person) Figure 1 Figure 21 Figure 3 Circle 4 Figure 5

Claims (1)

[Claims] A slider made of a non-magnetic material is provided with a core insertion groove, and a magnetic head core chip is fused and fixed to the core insertion groove.
A composite floating magnetic head that floats above a magnetic recording medium, characterized in that a doting groove perpendicular to the magnetic head core chip is provided on a side surface of a magnetic gap of the magnetic head core chip, and is fixed and fused to the magnetic head core chip. A method for manufacturing a warm floating magnetic head.