JP2002025204A - Microactuator element parts - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide microactuator element parts which can prevent desorbed grains from a microactuator element for driving to be added and used to and with a head suspension device from falling and from damaging a recording medium and sufficiently exhibits the displacement function intrinsic to the element of the actuator. SOLUTION: The microactuator element for driving to be added and used to and with the head suspension device is provided with a space or intermediate layer between the actuator element 2 and a coating material to the actuator element 2 or a head suspension section 10 including the actuator element 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates generally to a suspension for supporting a read / write head on a recording medium, and more particularly to a micro-actuator element added to a base plate.

[0002]

2. Description of the Related Art A drive microactuator element is additionally used in a suspension device for supporting a read / write head for a recording medium.

[0003] This type of microactuator element for driving is used in a cut-out state by cutting after firing because of its small size to improve masking efficiency and reduce processing costs when forming electrodes by sputtering or the like. .

[0004] However, the actuator element in the cut-out state has a small bonding area and is easily displaced from the suspension due to a displacement operation. Further, in the cut portion of the element, particles released by the cutting or particles in a state easily released are exposed, and the particles are shed and may damage the recording medium. Further, the cut portion of the element has a disadvantage that the internal electrode is exposed, the interlayer electrode layer may be short-circuited due to dew condensation or the like, and the element may not operate.

[0005] Therefore, as a method for solving the above-mentioned drawbacks in a driving microactuator element additionally used in a head suspension device, a coating is applied to an actuator element and an actuator element or a head suspension section including the actuator element. Specifically, a glass coating is added to the cut portion so that the cut surface is not exposed. The entire element is covered and covered with a flexible resin or the like that is difficult to suppress displacement, so that particles are not exposed. Further, coating with resin or the like is performed over the entire portion to be attached to the head suspension.

[0006]

However, in the above-mentioned conventional countermeasures, the coating material such as glass or resin restrains the shape of the element itself, so that the displacement function suppresses the original function of the microactuator element. Occurred.

It is an object of the present invention to provide a drive micro-actuator element which is additionally used in a head suspension device, which can prevent the falling of particles from the micro-actuator element from damaging the recording medium, and the element of the micro-actuator can be prevented. An object of the present invention is to provide a microactuator element part, which can sufficiently exhibit its original displacement function, a magnetic head, and a hard disk drive.

[0008]

According to the present invention, in a driving microactuator element additionally used for a head suspension device, a space or a flexible intermediate layer is provided between the actuator element and a coating material such as a resin. The displacement of the actuator element is not suppressed, and the original operation of the actuator element is enabled.

That is, according to the present invention, in a driving microactuator element additionally used in a head suspension device, a coating is applied to a head suspension portion of an actuator element mounted on a head arm so as to cover at least the actuator element. A microactuator element component is provided in which a material is provided and a space or an intermediate layer is provided between the coating material and the actuator element.

Further, according to the present invention, there is provided a head suspension device wherein the microactuator element component is mounted on the head arm.

Further, according to the present invention, a head suspension device in which the microactuator element component is mounted on the head arm and a recording / reproducing head is provided at one end of the head arm; A hard disk device characterized by comprising a hard disk to be reproduced is obtained.

[0012]

In the driving micro-actuator element additionally used in the head suspension device of the present invention, the device is devised so that the displacement operation of the micro-actuator element is not suppressed. That is, it is possible to prevent the particles falling from the microactuator element from falling and damaging the recording medium, and the original displacement function of the microactuator element is sufficiently exhibited.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic plan view showing a case where a microactuator element according to an embodiment of the present invention is additionally used in a head suspension of a hard disk. Figure 1
As shown in FIG. 1, the head suspension device 1 includes a pair of macro actuator elements 2 and a macro actuator element 2.
, A head 4 for recording and reproducing data on and from a hard disk (not shown), and a head support spring 5 provided at one end of the head arm 3 for supporting the head 4. And a mold resin 7 provided so as to cover the microactuator element 2. A head arm through hole 6 is provided at the other end of the head arm 3. That is, the microactuator element 2 is additionally used for the head suspension device 1.

In the driving micro-actuator element additionally used in the head suspension according to the embodiment of the present invention, a space is provided between the actuator element and the actuator element or the coating material on the head suspension including the actuator element. Alternatively, by providing the intermediate layer, the displacement of the actuator element is not suppressed, and the original operation of the actuator element can be performed.

Next, a detailed description will be given of a microactuator element component according to an embodiment of the present invention with reference to the drawings.

(Example 1) FIG. 2 shows a case where the microactuator element of FIG. 1 is additionally used for a head suspension of a hard disk, and further, the actuator element and the actuator element or a coating material on a head suspension including the actuator element are coated. FIG. 7 is a partial plan cross-sectional view showing an example in which an intermediate layer is provided in FIG. As shown in FIG. 2, the head suspension 10 includes a microactuator element 2, a head arm 3, a mold resin 7, an intermediate layer 8
And consists of

The head suspension unit 10 attaches the microactuator element 2 and the head arm with an arbitrary adhesive, and then, at the time of resin molding, a flexible resin (for example, Fluorinert J made by Sumitomo 3M) which will later become an intermediate layer.
X-900) is applied in advance, and then molded by molding a resin. The mold resin 7 is made of a commonly used epoxy resin or the like.

(Example 2) FIG. 3 shows a case where the microactuator element 2 of FIG. 1 is additionally used in a head suspension of a hard disk, and the actuator element and the actuator element or a coating material for a head suspension including the actuator element are coated. FIG. 4 is a partial plan cross-sectional view illustrating an example of a case where a space is provided therebetween.

The head suspension 20 comprises the microactuator element 2, the head arm 3, the mold resin 7, and the space 9.

The head suspension unit 20 mounts the microactuator element 2 and the head arm with an arbitrary adhesive, then provides a space between the microactuator element 2 and the element by a vacuum molding method at the time of resin molding. It is made by molding resin.

The molding resin 7 may be an epoxy resin generally used as in Example 1. As a method of opening a space between the element and the mold resin, soft powder is softened at the resin mold processing temperature, and then a powder having flexibility after softening is applied at a low filling rate, and the powder is softened and solidified during the subsequent resin molding. There is also a method of utilizing a decrease in the apparent density due to the above. Examples of such powder include paraffin.

[0023]

As described above, according to the present invention, a micro-actuator element and a micro-actuator element or a coating on a head suspension including the actuator element in a driving micro-actuator element additionally used for a head suspension apparatus. By providing a space or an intermediate layer between the material and the material, it is possible to prevent the particles falling from the microactuator element from falling and damaging the recording medium, and the element's original displacement function of the microactuator is sufficiently exhibited.

[Brief description of the drawings]

FIG. 1 is a schematic plan view when a microactuator element according to an embodiment of the present invention is additionally used in a head suspension device of a hard disk.

FIG. 2 shows a case in which the microactuator element of FIG. 1 is additionally used in a head suspension of a hard disk, and an intermediate layer is provided between the actuator element and the actuator element or a coating material on a head suspension including the actuator element. FIG. 4 is a partial plan cross-sectional view showing one example.

FIG. 2 shows the micro-actuator element of FIG. 1 additionally used in a head suspension of a hard disk, and an actuator element and an actuator element or
FIG. 7 is a partial plan cross-sectional view illustrating an example in which a space is provided between the head suspension including the actuator element and a coating material on the head suspension.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Head suspension apparatus 2 Macro actuator element 3 Head arm 4 Head 5 Head support spring 6 Through hole 7 Mold resin 8 Intermediate layer 9 Space 10, 20 Head suspension part

Claims (3)

[Claims] 1. A driving micro-actuator element additionally used for a head suspension device, wherein a coating material is provided on a head suspension portion of an actuator element mounted on a head arm so as to cover at least the actuator element. A microactuator element component comprising a space or an intermediate layer provided between a coating material and the actuator element. 2. A head suspension device, wherein the microactuator element component according to claim 1 is mounted on the head arm. 3. A head suspension device wherein the microactuator element component according to claim 1 is mounted on the head arm, and a recording / reproducing head is provided at one end of the head arm, and recording / reproducing is performed by the recording / reproducing head. And a hard disk drive.