JPH09312010A - Magnetic disk device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and inexpensively realize the electrical connection between a printed circuit pattern and a printed circuit cable terminal having the position of different connecting terminal corresponding to an adjacent magnetic head slider for the high density mounting. SOLUTION: This magnetic disk device is provided with the printed circuit pattern 11, in which the read and write informations are transmitted to the outside through the terminal as the electrical signal by the magnetic head slider 3 recording/reproducing the information while swinging on the magnetic disk. In this case, the printed circuit pattern is wired along the surface of gimbals 4 and a guide arm 7 parallel with the magnetic disk, then the electrical connection is facilitated by the manner that the terminal 14 is bent to the direction perpendicular to the magnetic disk.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic disk device in which a printed wiring pattern is wired via a gimbal, and more particularly to a magnetic disk device in which the wiring of the printed wiring pattern on the gimbal and the guide arm is improved.

[0002]

2. Description of the Related Art In recent years, magnetic disk devices have been required to have a large capacity, a small size, and a high-speed access as the performance of personal computers and workstations is increased and downsizing of large computers is performed. The magnetic disk drive that is required to have these performances is required to have a high density recording technology and a high technology in high density packaging.

Further, in general, a magnetic disk device includes a magnetic disk for recording information, a magnetic head slider equipped with a magnetic conversion element for rocking the magnetic disk to record and reproduce the information, and the magnetic head slider. A gimbal that is elastically supported at one end, a guide arm that is coupled to the other end of the gimbal, a carriage that is rotatably supported around a rotation axis by magnetic interaction, and a magnetic force that is driven by rotating the carriage. A voice coil motor for swinging and driving a head on a magnetic disk, a printed wiring pattern and a wiring cable for transmitting information recorded and reproduced by the magnetic head element as an electric signal to the outside, and an enclosure for accommodating these electric devices and circuits. The magnetic head is aerodynamically levitated or in contact with the magnetic disk while It is configured to perform recording and reproduction. The carriage and voice coil motor are called actuators.

The wiring pattern generally includes a gimbal for elastically supporting the slider from a magnetic head slider having a magnetic head element (magnetic core or thin film magnetic head element) mounted thereon, a guide arm coupled to the gimbal, and the guide arm. A connection terminal is provided which extends to the attached carriage and has an end portion for electrically connecting to the outside.

A wiring technique using a printed wiring pattern in a zirbal that supports these magnetic head sliders electrically reads and outputs the read and write signals before that due to the above-mentioned demand for higher technology in high-density recording and high-density mounting. Compared to the wiring technology that uses all the wires to transmit, the charge capacity of the signal line can be reduced, which is effective for signal transmission using high-frequency signals. Also, since the rigidity is lower than that of the wires, deformation of the gimbal is suppressed. This has the effect of stabilizing the attitude of the magnetic head slider.

Documents describing printed wiring pattern technology in these magnetic disk devices include Japanese Patent Application Laid-Open No. 1-162212 (attenuating head suspension assembly) and Japanese Patent Application Laid-Open No. 5-36048 (gimbal wiring for magnetic head). Body and method for producing the same), JP-A-62-
89286 (Slider support device), JP-A-6-
No. 215513 (magnetic head support mechanism) is cited. Japanese Patent Application Laid-Open No. 7-161161 (magnetic disk device) is cited as a document which describes a technique relating to the connection between these printed wiring patterns and a printed wiring cable for transmitting an electric signal between the outside of the enclosure. This publication describes a method of using a relay FPC (flexible print cable) as an electrical connection method between a magnetic head slider and a printed wiring cable.

[0007]

The above-mentioned magnetic disk device according to the prior art has a wiring pattern as a structure for transmitting the information recorded and reproduced by the magnetic head element to the outside as an electric signal, but the carriage. A printed wiring cable for relaying (flexible printed cable, hereinafter referred to as FPC) is wired from a position where the electric connection terminal provided on the side of the guide arm is reached to the vicinity of the gimbal, and the terminal at the other end of the FPC is wired. In general, wire bonding is used to connect the terminals of the magnetic head element of the magnetic head slider with a wire (lead wire).

The connection technique using this printed wiring cable and wire bonding does not directly connect the cable to the gimbal that elastically supports the magnetic head.
It is possible to prevent the gimbal from being deformed and prevent the flying characteristics of the magnetic head slider from being impaired.
However, in the case of the technique, in the case of a guide arm that supports a magnetic head slider that is inserted between two magnetic disks and is oriented in two vertical directions, fine wire bonding work must be performed on the upper and lower magnetic head elements. However, there was a problem that the connection work was complicated.

Further, in recent years, in magnetic recording of a magnetic disk device, separation of an MR type read head and a thin film type write head is rapidly progressing in order to cope with high frequency recording, and the number of electric signal lines to be used is reduced. The increase in the number of connection terminals causes a problem that the wire bonding work becomes particularly complicated. Further, in recent devices, a read / write amplifier may be provided on the printed wiring cable on the actuator in order to further reduce the charge capacity of the signal line, and the wiring in this case tends to be more complicated.

An object of the present invention is to eliminate the above-mentioned problems caused by the prior art, and to provide a magnetic disk device which facilitates wiring from a magnetic head element without using a wire bonding technique. Another object of the present invention is to extend a signal line extension portion of a printed wiring pattern arranged on a surface substantially parallel to the magnetic disk to prevent deformation of the gimbal and an adjacent magnetic head slider for high density mounting. It is to facilitate electrical connection with printed wiring cable terminals in which the positions of the connection terminals corresponding to are different, and enable high-density mounting in the printed wiring cable.

[0011]

In order to achieve the above object, a magnetic disk device according to the present invention has a printed wiring pattern for transmitting information read and written by a magnetic head element as an electric signal to the outside through a terminal. The first feature is that wiring is provided along a plane parallel to the magnetic disk of the gimbal, and a terminal at an end on the actuator side is bent in a direction perpendicular to the magnetic disk.

Further, in the magnetic disk device according to the present invention, a printed wiring pattern for transmitting information read and written by the magnetic head element to the outside as an electric signal through a terminal,
The second feature is that the gimbal and the guide arm are wired along a plane parallel to the magnetic disk, and the terminal at the end on the actuator side is bent in a direction perpendicular to the magnetic disk.

Further, in the magnetic disk device according to the present invention, the printed wiring pattern according to the first and second characteristics is
A third feature is that the guide arm is embedded in a notch or a groove provided on a surface parallel to the magnetic disk and is wired along a surface parallel to the magnetic disk.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A magnetic disk device according to an embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a diagram for explaining a schematic structure of a magnetic disk device to which a printed wiring pattern according to an embodiment of the present invention is applied, and FIG. 2 illustrates an overall structure of a printed wiring pattern according to an embodiment of the present invention. 3 is a partially enlarged view for explaining the structure from the guide arm to the magnetic head slider of this embodiment, and FIGS. 4 to 5 are the printed wiring pattern and the printed wiring cable in the actuator unit according to this embodiment. 6 to 7 are partial views showing the connecting portion.
FIG. 8 is a view showing another embodiment of the terminal connecting portion, and FIG.
FIG. 9 is a diagram showing an embodiment of a printed wiring cable without a write amplifier, FIG. 9 is a diagram showing an embodiment in which connecting portions are arranged on different planes, and FIG. 10 is a printed wiring cable end of an embodiment in which connecting portions are arranged on different planes. FIG. 11 is a diagram showing an embodiment in which a connecting portion is arranged on a guide arm, FIG. 12 is a diagram showing an end portion of a printed wiring cable of an embodiment in which a connecting portion is arranged on a guide arm, and FIG. 13 is a connecting member. FIG. 14 is a diagram showing an embodiment by using, and FIG. 14 is a diagram showing a configuration example of a connecting member.

Now, FIG. 1 is an overall view showing the internal structure of a magnetic disk device according to an embodiment of the present invention. This magnetic disk device includes a magnetic disk 1 for recording position control information and data, a spindle motor 2 for rotationally driving the magnetic disk 1, and a magnetic head element for recording / reproducing information on / from the magnetic disk 1 ( (Not shown), a magnetic head slider 3, a gimbal 4 supporting the slider 3 at one end and having a printed wiring pattern for transmitting a signal of information from the magnetic head element, and the gimbal 4
And an actuator 6 (carriage thereof) for rotatably driving the magnetic head 1 by the voice coil motor 5, and these mechanisms and a circuit mechanism (not shown) are housed in the enclosure 8. A printed wiring cable 9 is used for electrical signal transmission to the outside of the enclosure 8, one end of which is attached to the actuator 6 and connected to the printed wiring pattern.
The other is fixed to the enclosure 8.

The structure from the gimbal 4 to the actuator 6 supporting the magnetic head slider 3 according to the present embodiment is as shown in FIGS. 2 and 3. This structure is
As shown in the figure, a plurality of gimbals 4 that elastically support the magnetic head slider 3, a plurality of rigid guide arms 7 that support the gimbal 4, and a fastening support of the guide arms 7 via fastening members 10. Then, the actuator 6 provided with the terminals of the printed wiring cable 9 connected to the outside on the side surface, and the side surface of the guide arm and the magnetic field of the gimbal 4 so as to transmit an electric signal between the terminal of the cable 9 and the magnetic head element. It is composed of a plurality of printed wiring patterns 11 wired on a plane portion parallel to the disk.

As shown in FIG. 3B, the guide arm 7 has a laterally convex step 7a on its side edge, and the upper and lower surfaces of the step 7a have a printed wiring pattern 11 for the upper head / a head for the lower head. The printed wiring pattern 11a is affixed for wiring, and the terminal portion on the actuator 6 side is shown in FIG.
As shown in (c), 14a for connecting to the terminal of the cable 9 is bent and projected. The punt wiring pattern 1 is formed on the step 7a on the side edge of the guide arm 7.
The reason for wiring 1 and 11a is that the distance between the magnetic disks is narrowed due to the recent demand for a smaller and thinner magnetic disk device, and it is difficult to wire the cable on the surface of the guide arm 7 and the step difference. This is for facilitating the wiring using the portion as a guide. Further, this wiring is not limited to providing a step on the side edge, and for example, a groove may be formed on both surfaces of the arm 7 and wiring may be performed in this groove. It can also be applied when the arm is made thinner by changing the thickness.

As shown in FIG. 3A, the gimbal 4 has printed wiring patterns 11 and 1 in which the upper and lower surfaces of the step 7a of the guide arm 7 are wired in parallel with the magnetic disk.
1a is directly extended in parallel to the terminal 12 at the tip of the magnetic head slider 3 and wired. The wiring on the gimbal 4 may be crimped by pressing so as not to affect the elastic characteristics. In this way, the printed wiring patterns 11 and 11a according to the present embodiment are wired along the surfaces of the guide arm 7 and the gimbal 4 parallel to the magnetic disk,
Only the connection terminals 14 and 14a on the actuator 6 side, which are connected to the terminals from the outside, are bent.

Next, the connection on the actuator 6 side will be described with reference to FIGS. FIG. 4 shows a side surface of the actuator 6, on which a read / write amplifier 13 connected to the outside is mounted, and connecting terminals 15 and 15a for the upper and lower heads are extended and wired from the amplifier 13 to the guide arm side. ing. Further, the carriage 6 is provided with a plurality of grooves 6a to 6c for inserting and coupling the guide arm 7, and the groove 6c is connected to the connection terminals 15 and 15 on the amplifier 13 side.
The groove 6a and 6c are deeply cut to be connected to a, and the grooves 6a and 6c are shallowly cut to be connected to the connection terminals 15 and 15a on the guide arm 7 side.

FIG. 5 shows the structure in which the guide arm 7 is inserted and connected to the actuator 6. As is apparent from this figure, the wiring connection of this portion is such that the upper and lower guide arms 7a and 7c are fitted in the shallow grooves 6a and 6c, so that the printed wiring pattern 11 and the like are provided on the guide arm 7 side. The printed wiring pattern 11b is connected to the connection terminals 15 and 15a on the side of the amplifier 13 by connecting the central guide arm 7b to the deep groove 6b.

This wiring structure may be, for example, another structure shown in FIG. 6 or 7. For example, in the structure shown in FIG. 6, the connection terminal 14a of the printed wiring pattern 11a is arranged on the end face of the extension portion on the actuator side, and the coupling portion 17 is provided below this end portion. The terminal 14a is positioned by connecting the terminals 14a and 15a to each other, and the terminals 14a and 15a are electrically connected by soldering, ultrasonic welding, or the like to ensure the electrical connection of each terminal. It is a thing.
Incidentally, these coupling portions 17 and 18 are used only for positioning without performing electrical coupling.

In the wiring structure, as shown in FIG. 7, a plurality of through holes 19 connecting the front and back of the pattern 11a are provided in the vicinity of the electrical contact terminals 14a of the printed wiring pattern 11a, and the through holes 19 are used as actuators. 6
The connection is ensured by electrically connecting the connection terminal 15 on the side by soldering, ultrasonic fusion, or the like. Positioning and connection of these terminals are not limited to this example, and other structures in which each terminal is fitted and coupled in a connector manner may be used.

As described above, in the wiring structure of the present embodiment, the signals of the printed wiring patterns 11 and 11a wired in parallel with the upper and lower surfaces of the step 7a of the guide arm 7 are prevented in order to prevent bending or twisting which causes deformation of the gimbal 4. The lengths of the wire extension portions can be made different to facilitate the mounting of the connection terminals and the read / write amplifier 13, and the electrical connection with the printed wiring cable in which the arrangement of the adjacent connection terminals 15 and 15a is made different. Can be possible. still,
In the present embodiment, since the lengths of the extended portions of the printed wiring patterns of the adjacent magnetic head sliders are different, it is conceivable that there are two types of gimbals. However, a gimbal having a printed wiring pattern originally has an adjacent magnetic head slider. On the other hand, the wiring direction is often different, and the disadvantage caused by the different length of the extension does not occur.

FIG. 8 shows another embodiment in which the read / write amplifier 13 is not provided at the connection portion between the printed wiring pattern and the printed wiring cable shown in FIG. This Figure 8
The basic configuration of the embodiment in is the same as that of FIGS. 2 to 5. Compared with the previous example, the present example also differs in the arrangement of the adjacent connection terminals 15 and 15a on the printed wiring cable 9 and changes the lengths of the printed wiring patterns 11 and 11a as shown in the figure. Mounting of the connection terminals in the printed wiring cable 9 can be made very easy. This configuration corresponds to a case where there is no space for providing a read / write amplifier in the printed wiring cable 9 on the actuator when further downsizing of the magnetic disk device is taken into consideration.

FIG. 9 is a diagram showing a connecting structure in an actuator which is another embodiment of the present invention in which the connecting portions of adjacent printed wiring patterns and printed wiring cables are arranged on different planes, and FIG. It is a figure which shows the printed wiring cable on an actuator.

In the connection structure according to the present embodiment, as shown in FIGS. 9 and 10, the printed wiring cable 9 is mounted on the side surface of the actuator 6, and the connection terminal 15a of the wiring cable 9 is bent to be parallel to the magnetic disk. Using the printed wiring cable mounting member 27 having the protruding portion 28 protruding in any direction, the terminals 14 / 14a of the printed wiring pattern 11 / 11a are extended to the upper and lower portions of the protruding portion 28, and the connecting terminal 15 of the printed wiring cable 9 is connected. And 15a, respectively. According to this embodiment, the printed wiring pattern 11 and the like can be connected to the printed wiring cable 9 without any deformation such as bending.

FIG. 11 is a view showing a connection structure in an actuator which is another embodiment of the present invention, and FIG. 12 is a view showing a printed wiring cable on the actuator in FIG.

In the connection structure according to the present embodiment, as shown in the figure, the connection terminal 15 extending from the amplifier 13 of the printed wiring cable 9 is extended to above the guide arm 7, and the end portion of the terminal 15 is bent to guide the guide arm. 7 is extended to a plane parallel to the magnetic disk, and the terminal 14 of the printed wiring pattern 11 on the head side and the terminal 15 on the amplifier side are connected at this portion. According to the present embodiment, the printed wiring pattern can be connected to the printed wiring cable without any deformation such as bending, and the terminals 15 and the like are arranged on the surface of the guide arm 7 parallel to the magnetic disk. Therefore, the terminals in the printed wiring cable 9 and the read / write amplifier can be mounted more easily.

FIG. 13 is a view showing a connection structure according to still another embodiment of the present invention, and FIG. 13 is a view showing reinforcing members 33 and 33a used in the connection structure. Since the connection structure according to the present embodiment connects the terminals 14 and the like of the printed wiring pattern 11 and the terminals 15 and the like of the amplifier on the side surface of the actuator 6 as in the embodiment shown in FIG.
Reinforcing members 33 and 33a, which are bent at 0 degrees and hold a short cable 32 having terminals 30 and 31 at both ends, are attached to the side surface of the actuator 6, and by the short cables 32 and 32a of the reinforcing member 33, the head side is attached. The terminal 14 such as the printed wiring pattern 11 is connected to the terminal 15 on the amplifier side. That is, in this embodiment, the patterns 11 and the cable 9 are not bent at their ends, and the short cables 32 and 32a that are bent in advance are used to connect the patterns and the terminals of the cables. It is a thing. Incidentally, the reinforcing member 33 shown in FIG.
It is preferable that these are made of a non-conductive and lightweight member such as a polymer resin, and the back surface is adhesively fixed to the side surface of the actuator 6 (or on the cable 9 on the side surface). Further, the terminal of the short cable may be provided with a through hole 19 as shown in FIG. According to this embodiment, the printed wiring pattern and the printed wiring cable can be electrically connected without any deformation such as bending.

As described above, in the magnetic disk drive according to the present embodiment, the gimbal is wired along the surface parallel to the magnetic disk, and the end portion of the side surface of the actuator near the connection terminal is perpendicular to the magnetic disk. By providing the bent wiring pattern, the wiring from the magnetic head element can be facilitated without restricting the movement of the gimbal. Further, since the planar terminals are connected without using the wire bonding in the connection portion with the magnetic head element, the wiring cable, etc., there is an effect that the connection work is extremely easy.

In the above-mentioned embodiment, the guide arm for connecting the gimbal and the actuator (carriage) has been described, but the present invention is not limited to this, and the actuator may be constructed in accordance with the further downsizing of the apparatus. The present invention can also be applied to the one in which a gimbal / load arm having an elastic force is directly connected to the rotating portion, and the book can be represented as the following embodiment.

[First Embodiment] A magnetic disk and drive means for fixing and rotating the magnetic disk, and at least two.
The magnetic head slider comprises one or more magnetic head sliders, a zirbal for supporting each magnetic head slider, and an enclosure including a drive type actuator for positioning the magnetic head slider by a voice coil motor on the magnetic disk. Electrical connection of a printed wiring cable having a printed wiring pattern for electrically transmitting a read signal and a write signal from the magnetic head slider, the printed wiring cable being attached to the actuator and transmitting an electrical signal to the outside of the enclosure. In a structure in which an electrical connection terminal provided on a signal line extension of the printed wiring pattern of the gimbal arranged on a surface substantially parallel to the terminal and the magnetic disk is directly electrically connected to the adjacent magnetic head slider. Corresponding printed wiring The length of the signal line extension of the turn is made different at least at one or more places, and the electric connection terminals of the printed wiring cable for making the corresponding electrical connection are made different according to the length of the signal line extension of the printed wiring pattern. A magnetic disk drive characterized by a different layout.

[Second Embodiment] In the magnetic disk drive according to the first embodiment, a cutout portion is provided in a part of the printed wiring cable attached to the actuator or a part of a member for fixing the printed wiring cable. A magnetic disk device, wherein the signal line extension of the printed wiring pattern of the gimbal is provided in the notch.

[Third Embodiment] In the magnetic disk drive according to the first embodiment, the electrical connection terminals provided in the signal line extension portions of the adjacent printed wiring patterns having different lengths and the actuator attached to the actuator are provided. A magnetic disk device characterized in that the connection portions of the electrical connection terminals of the printed wiring cable are arranged on different planes.

[Fourth Embodiment] In the magnetic disk device according to the first embodiment, at least one or more terminals not transmitting signals are provided in the vicinity of the electrical connection terminals provided in the signal line extension of the printed wiring pattern. A magnetic disk device, characterized in that it is connected by the same method as the electrical connection terminal for transmitting a signal.

[Fifth Embodiment] In the magnetic disk device according to the first, second, third, or fourth embodiment, an electrical connection terminal provided on an extension of the printed wiring pattern and an electrical connection terminal of the printed wiring cable are provided. A magnetic disk device characterized in that a through hole is provided in at least one of the two, and the electrical connection is made through the through hole.

[Sixth Embodiment] In the magnetic disk device according to the first, second, third, fourth, or fifth embodiment, the recording / reproducing element portion of the magnetic head slider is separated into a read head and a write head. A magnetic disk device characterized by being used.

[Embodiment 7] A magnetic disk, a driving means for fixing and rotating the magnetic disk, at least two or more magnetic head sliders, a girbal for supporting each of the magnetic head sliders, and one end of the gimbal. It comprises a guide arm to be fixed and an enclosure including a drive type actuator for positioning the guide arm and the magnetic head slider on the magnetic disk by a voice coil motor, and the gimbal has a read signal and a write signal from the magnetic head slider. A surface substantially parallel to the magnetic disk and an electrical connection terminal of a printed wiring cable, which has a printed wiring pattern for electrically transmitting a signal, is attached to the actuator and transmits an electrical signal to the outside of the enclosure. Said gin placed in In the structure for directly electrically connecting the electrical connection terminals provided on the signal line extension of the printed wiring pattern of the magnetic pole, the length of the signal line extension of the printed wiring pattern corresponding to the adjacent magnetic head slider is set to At least one location is made different, and the electrical connection terminals of the printed wiring cable for making the corresponding electrical connection are arranged so as to be different according to the length of the signal line extension portion of the printed wiring pattern, and the electrical connection portion is A magnetic disk device characterized by being arranged on the guide arm.

[Embodiment 8] In the magnetic disk drive according to the seventh embodiment, at least one terminal which does not transmit a signal is provided in the vicinity of the electrical connection terminal provided in the signal line extension of the printed wiring pattern. A magnetic disk device, characterized in that it is connected by the same method as the electrical connection terminal for transmitting a signal.

[Ninth Embodiment] In the magnetic disk device according to the seventh or eighth embodiment, at least one of an electric connection terminal provided on a signal line extension portion of the printed wiring pattern and an electric connection terminal of the printed wiring cable. A magnetic disk device characterized in that a through hole is provided in the through hole and the electrical connection is made through the through hole.

[Embodiment 10] In the magnetic disk drive according to Embodiment 7 or 8 or 9, the element portion for recording / reproducing of the magnetic head slider is separated into a read head and a write head. Magnetic disk device characterized by.

[Embodiment 11] A magnetic disk and drive means for fixing and rotating the magnetic disk, and at least two.
The magnetic head slider comprises one or more magnetic head sliders, a zirbal for supporting each magnetic head slider, and an enclosure including a drive type actuator for positioning the magnetic head slider by a voice coil motor on the magnetic disk. Electrical connection of a printed wiring cable having a printed wiring pattern for electrically transmitting a read signal and a write signal from the magnetic head slider, the printed wiring cable being attached to the actuator and transmitting an electrical signal to the outside of the enclosure. In the structure for electrically connecting the terminal and the electrical connection terminal provided on the signal line extension of the printed wiring pattern of the gimbal arranged on the surface substantially parallel to the magnetic disk, the structure corresponds to the adjacent magnetic head slider. The printed wiring pattern Arrangement in which the lengths of the signal line extension portions are different from each other at least at one place, and the electrical connection terminals of the printed wiring cable for performing the corresponding electrical connection are made different according to the length of the signal line extension portion of the printed wiring pattern. The magnetic disk device is characterized in that the positions of both electrical connection terminals are arranged on planes that are substantially orthogonal to each other, and the connection is performed using a connection member having electrical connection terminals at both ends.

[Embodiment 12] In the magnetic disk drive according to the eleventh embodiment, at least one terminal not transmitting a signal is provided in the vicinity of the electrical connection terminal of the connecting member, and a signal is transmitted. A magnetic disk device characterized by being connected by the same method as an electrical connection terminal.

[Embodiment 13] Embodiment 11 or 1
3. The magnetic disk device according to claim 2, wherein a through hole is provided in at least one of the electrical connection terminal provided in the signal line extension of the printed wiring pattern, the electrical connection terminal of the printed wiring cable, and the electrical connection terminal of the connection member. A magnetic disk device, wherein the magnetic disk device is provided and the electrical connection is made through the through hole.

[Embodiment 14] Embodiment 11 or 1
14. The magnetic disk device according to claim 2 or 13, wherein an element portion for recording / reproducing of the magnetic head slider is separated into a read head and a write head.

[0046]

As described above, according to the present invention, the printed wiring pattern for transmitting the information read and written by the magnetic head element to the outside as an electric signal through the terminal is formed on the surface parallel to the magnetic disk of the gimbal. Wiring along the actuator and the terminal at the end on the actuator side being bent in the direction perpendicular to the magnetic disk facilitates wiring from the magnetic head element without restricting the movement of the gimbal. .

Further, according to the present invention, the printed wiring pattern is laid along the surface of the gimbal and the guide arm parallel to the magnetic disk, and the terminal at the end on the actuator side is bent in a direction perpendicular to the magnetic disk. As a result, even with a guide arm, the wiring from the magnetic head element can be facilitated without restricting the movement of the gimbal.

Further, according to the present invention, the printed wiring pattern is embedded in a notch or groove provided on a surface of the guide arm parallel to the magnetic disk and wired along the surface parallel to the magnetic disk. Also, it can be used for a device having a narrow gap between magnetic disks, and the device can be made small and thin. That is, according to the present invention, in order to prevent deformation of the gimbal and the like, the printed wiring pattern arranged on the surface substantially parallel to the magnetic disk and the position of the connection terminal corresponding to the adjacent magnetic head slider for high density mounting are arranged. Electrical connection with different printed wiring cable terminals can be easily performed, and the mounting density of the magnetic disk device can be improved, and the size / thinness / capacity can be increased.

[Brief description of drawings]

FIG. 1 is a diagram for explaining a schematic structure of a magnetic disk device to which a printed wiring pattern according to an embodiment of the present invention is applied.

FIG. 2 is a diagram for explaining the overall configuration of a wiring pattern according to this embodiment.

FIG. 3 is a diagram for explaining a structure from a guide arm to a magnetic head slider of this embodiment.

FIG. 4 is a diagram showing a printed wiring pattern and a cable connecting portion according to the present embodiment.

FIG. 5 is a diagram showing a printed wiring pattern and a cable connecting portion according to the present embodiment.

FIG. 6 is a diagram showing another embodiment of a printed wiring pattern and a cable connecting portion.

FIG. 7 is a diagram showing another embodiment of a printed wiring pattern and a cable connecting portion.

FIG. 8 is a diagram showing an embodiment of a printed wiring cable without a read / write amplifier.

FIG. 9 is a diagram showing a printed wiring pattern and a cable connecting portion according to another embodiment.

FIG. 10 is a diagram showing a connecting portion of a printed wiring cable according to another embodiment.

FIG. 11 is a diagram showing a printed wiring pattern and a cable connecting portion according to another embodiment.

FIG. 12 is a diagram showing a printed wiring cable of an embodiment in which a connecting portion is arranged on a guide arm.

FIG. 13 is a diagram showing a printed wiring pattern and a cable connecting portion according to another embodiment.

14 is a diagram showing a configuration example of a connecting member in the embodiment of FIG.

[Explanation of symbols]

1 ... Magnetic disk, 2 ... Spindle motor, 3 ... Magnetic head slider, 4 ... Gimbal, 5 ... Voice coil motor, 6 ... Actuator, 7 ... Guide arm, 8 ... Enclosure, 9 ... Printed wiring cable, 10 ... Fastening member, 11 and 11a ... Printed wiring pattern, 12
... terminals, 13 ... read / write amplifiers, 14 and 14
a ... Electrical connection terminals of printed wiring pattern, 15 and 15a ... Electrical connection terminals of printed wiring cable, 16
... Cutouts, 17 ... Printed wiring pattern terminals that do not perform electrical signal transmission, 18 ... Printed wiring cable terminals that do not perform electrical signal transmission, 19 ... Through holes, 20, 21 ... Magnetic head, 22 / 22a / 23/2
3a ... Wire bonding portion, 24 and 25 ... Relay F
PC, 26 ... Printed wiring cable, 27 ... Printed wiring cable attachment member, 28 ... Projection portion, 29 and 29
a ... connecting member, 30 / 30a / 31 / 31a ... terminal of connecting member, 32 and 32a ... printed wiring connecting cable,
33 and 33a ... Reinforcing member.

Claims (3)

[Claims] 1. A magnetic disk for recording information, a magnetic head slider on which a magnetic head element for rocking the magnetic disk for recording and reproducing information is mounted, and the magnetic head slider is elastically supported at one end. Gimbal, an actuator coupled to the other end of the gimbal to drive the magnetic head to swing on the magnetic disk, and a print for transmitting information read and written by the magnetic head element to the outside as an electric signal through a terminal. In a magnetic disk device having a wiring pattern, the printed wiring pattern is wired along a plane parallel to the magnetic disk of the gimbal, and a terminal at an end of the actuator is bent in a direction perpendicular to the magnetic disk. A magnetic disk device characterized in that 2. A magnetic disk for recording information, a magnetic head slider on which a magnetic head element for rocking the magnetic disk for recording and reproducing information is mounted, and the magnetic head slider is elastically supported at one end. Gimbal, a guide arm connected to the other end of the gimbal, an actuator for swinging the magnetic head on the magnetic disk by rotating the guide arm, and information read / written by the magnetic head element. In a magnetic disk device provided with a printed wiring pattern that is transmitted as a signal to the outside through a terminal, the printed wiring pattern is wired along a surface parallel to the magnetic disk of the gimbal and the guide arm, and an end portion on the actuator side is provided. A magnetic disk device, wherein terminals are bent in a direction perpendicular to the magnetic disk. 3. The printed wiring pattern is embedded in a notch or a groove provided on a surface of the guide arm parallel to the magnetic disk and wired along a surface parallel to the magnetic disk. The magnetic disk device according to claim 2.