CN100369119C - Magnetic-head cantilever assembly and its mfg. method - Google Patents
Magnetic-head cantilever assembly and its mfg. method Download PDFInfo
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- CN100369119C CN100369119C CNB2004100320985A CN200410032098A CN100369119C CN 100369119 C CN100369119 C CN 100369119C CN B2004100320985 A CNB2004100320985 A CN B2004100320985A CN 200410032098 A CN200410032098 A CN 200410032098A CN 100369119 C CN100369119 C CN 100369119C
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Abstract
The present invention discloses a method for manufacturing the head suspension arm assembly (HSA) of a hard disk drive. The method comprises the following steps: a head arm assembly (HAA) is molded, wherein the head arm assembly is provided with a suspension arm flexible cable and a flexible printed circuit assembly (FPCA); the suspension arm flexible cable and the flexible printed circuit assembly are electrically connected by conductive epoxy glue. In the present invention, the conductive epoxy glue is preferably an anisotropic conductive film (ACF). The molding of the head arm assembly (HAA) comprises the steps of molding a drive arm and arranging a suspension arm, a support and a voice coil on the drive arm in an overmolding way. The method can further comprise the step of molding another head arm assembly as a part of the head suspension arm assembly. The present invention simultaneously discloses the structure of the head suspension arm assembly.
Description
Technical field
The present invention relates to a kind of disc driver and manufacture method thereof, refer to a kind of magnetic head cantilever combination (headstack assembly, manufacture method HSA) especially.
Background technology
Disc driver is a kind of information-storing device that uses the magnetic medium storage data.With reference to figure 1, the magnetic head fold piece combination that magnetic head 3 is housed 4 that existing disc driver (disk drive) comprises actuating arm (drive arm) 5, link to each other with actuating arm (drive Arm) 5 (head gimbal assembly, HGA) (described actuating arm 5 and the magnetic head fold piece combination 4 that magnetic head is housed are commonly called magnetic head cantilever combination (HSA)), be contained in the disk 1 (described Spindle Motor 2 rotates in order to driving disk 1) on the Spindle Motor 2 and be used for the disc driver base 13 of ccontaining above-mentioned parts.Described magnetic head 3 go at express speed at a high speed on disk 1 surface and by be arranged on the fan-shaped spacer portion 8 voice coil loudspeaker voice coil 7 (for example, by gluing (epoxy potting) or Overmolded (overmolding) mode) carry out radial location, thus the concentric data track from disk 1 reads or writes data.Usually, described disc driver also be provided with the voice coil motor 10 that is used to drive voice coil loudspeaker voice coil 7 (Voice-Coil Motor, VCM).
With reference to figure 2 (a) and 3, traditional magnetic head cantilever combination (HSA) comprises an independently fan-shaped spacer portion 8 of being located between two actuating arms 5, and this fan-shaped spacer portion 8 combines by fastener and described actuating arm 5.Described fastener comprises pivot member 6, packing ring 25 ' and nut 26 '.In the prior art, described magnetic head fold piece combination (HGA) 4 is connected with described actuating arm 5 by the mode of laser bonding or die forging (swaging).Described each actuating arm 5 has a cantilever flexible cable 20 (suspension flexure cable) that extends to plural connecting terminal 19 from magnetic head 3.Described cantilever flexible cable 20 is immobilizated on the cantilever of described magnetic head fold piece combination (HGA) 4 by laser bonding or bonding mode.
In general disc driver, with reference to figure 2 (a) and 2 (b), electric control signal is given voice coil loudspeaker voice coil 7 by a flexible print circuit assembling (FPCA) 9 conduction.The connecting terminal 19 of described cantilever flexible cable 20 is by (for example connecting ball 15, connect (ultrasonic bonding) by welding or ultrasound wave) link to each other with plural connecting terminal 16 in the flexible print circuit assembling 9, and then with flexible print circuit assembling (FPCA) 9 electric connections.Like this, just can transmit read/write data mutually between flexible print circuit assembling (FPCA) 9 and the magnetic head 3.In addition, as shown in Figure 1, be contained in the location that printed circuit board (PCB) 11 on the support 12 is used for controlling the actuating arm 5 that magnetic head 3 is housed.
With reference to figure 2 (a), flexible print circuit assembling (FPCA) 9 is assembled together with fan-shaped spacer portion 8 by the locating pins 17 of giving prominence to from fan-shaped spacer portion 8 at the one end.Through after the above-mentioned assembling, described flexible print circuit assembling 9 realizes electrically connecting with magnetic head fold piece combination 4.
Yet, shown in Fig. 2 (b), because the manufacture method of existing magnetic head cantilever combination need be placed on the internal corners that forms between cantilever flexible cable 20 and the flexible print circuit assembling 9 with connecting ball 15, make that like this manufacture process of magnetic head cantilever combination is quite difficult: at first, described connection ball 15 is difficult to make, and is difficult to be placed in the described corner; Secondly, the location of the connecting terminal 16 of flexible print circuit assembling 9 and the connecting terminal 19 of cantilever flexible cable 20 with is electrically connected also very difficultly, this can greatly influence quality and production efficiency that magnetic head cantilever makes up, and has increased manufacturing cost.
Moreover described connection ball 15 must be cleared up after welding immediately, promptly removes solder flux (solderflux), and not only difficulty but also cost are higher yet remove solder flux.Simultaneously, the scolder that is used to form described connection ball 15 may cause element to pollute.Even more serious is the destruction of electrical components around the sputter of scolder may cause in the welding process.
At last, owing to using conventional methods (as welding, die forging (swaging) or bonding) with being connected of actuating arm 5, magnetic head fold piece combination 4 and cantilever flexible cable 20 realize, and use conventional methods quite time-consuming and cost high, so corresponding manufacturing cost and the manufacture difficulty that has increased the combination of existing magnetic head cantilever.
Therefore, provide a kind of manufacture method of improved magnetic head cantilever combination very necessary with the shortcoming that overcomes prior art.
Summary of the invention
Based on the deficiencies in the prior art, fundamental purpose of the present invention is to provide the method for magnetic head cantilever combination of the manufacturing disc driver of a kind of convenience and safety.
Another object of the present invention is to provide a kind of low cost of manufacture and the combination of the magnetic head cantilever of the disc driver that is easy to make.
In order to achieve the above object, the present invention has set forth a kind of method of making the magnetic head cantilever combination (HSA) of hard disk drive, it comprises following step: at first, moulding has first head arm combination of first cantilever flexible cable (suspension flexure cable) and flexible print circuit assembling (flexible printed circuitassembly), wherein the described flexible print circuit assembling of moulding comprises moulding flexible printed circuit board and connector, wherein the described connector of moulding comprises the vertical bending of described flexible printed circuit board is formed a plate, makes described web joint parallel with the first cantilever flexible cable; Then, electrically connect by the web joint of electric conductivity epoxy glue (conductive epoxy) the first cantilever flexible cable and flexible print circuit assembling.
In one embodiment of the invention, the method of described manufacturing magnetic head cantilever combination further may further comprise the steps: moulding has second head arm combination (HAA) of the second cantilever flexible cable, wherein the described connector of moulding also comprises the vertical bending of described flexible printed circuit board is formed another web joint, makes described another web joint parallel with the second cantilever flexible cable; Then, together with the combination of described first head arm and the second head arm combine and assemble.Wherein, assembling described first head arm combination comprises by the step of electric conductivity epoxy glue with web joint (FPCA) electric connection of described first and second cantilever flexible cable and the assembling of described flexible print circuit with the combination of second head arm.In one embodiment of the invention, described electric conductivity epoxy glue be anisotropic conductive film (Anisotropic Conductive Film, ACF).
In the present invention, make described first head arm combination (HAA) and comprise the steps: that moulding has first cantilever of first magnetic head, first actuating arm, support and voice coil loudspeaker voice coil; Then, the described first cantilever flexible cable is connected with first cantilever.The combination of described second head arm of moulding comprises that moulding has second cantilever of second actuating arm and the second cantilever flexible cable is connected with second cantilever.At this, described first head arm combination of moulding comprises first cantilever, support and voice coil loudspeaker voice coil difference Overmolded (overmolding) on described first actuating arm; The combination of described second head arm of moulding comprises second cantilever is overmolded in step on second actuating arm.In addition, first and second cantilever flexible cable also takes shape in respectively on first cantilever and second cantilever by Overmolded mode.
In the present invention, the described flexible print circuit assembling of moulding comprises the step of formed connected pin.Wherein, described connector is to form plural connecting terminal respectively on U type and its web joint.
In a preferred embodiment of the present invention, described first head arm combination of moulding (HAA) comprises grounding nail of moulding thereon and at least one connected nail; The described connecting pin of moulding comprises corresponding described grounding nail and at least one connected nail earthing contact of moulding and at least one voice coil loudspeaker voice coil contact respectively.In the present invention, the combination of described first head arm of moulding also needs described grounding nail and at least one connected nail are electrically connected with earthing contact and at least one voice coil loudspeaker voice coil contact of described connecting pin respectively.Described first, second cantilever flexible cable of moulding comprises the step that forms plural connecting terminal respectively thereon.And, be being connected of described first and second cantilever flexible cable and flexible print circuit assembling (FPCA) to realize by the connecting terminal on described first and second cantilever flexible cable is linked to each other with connecting terminal on the U type connector.
In the present invention, moulding first head arm combination (HAA) further is included in support of one side moulding.The described support of moulding comprises the steps: shaped support main body and guide rail.Wherein, the described rack body of moulding is included in the step that the one side forms the support folder and forms locating pin thereon.In the present invention, the described flexible printed circuit board of moulding comprises the steps: pilot hole of corresponding locating pin (alignment pin) moulding (alignment hole).In the present invention, the combination of described first head arm of moulding also comprises by described locating pin and pilot hole location, and by the support clamping calmly described flexible printed circuit board (FPC) realize described flexible print circuit assemble with described support between be connected.
The magnetic head cantilever combination of a kind of hard disk drive of the present invention, comprise first head arm combination (HAA) with the first cantilever flexible cable and flexible print circuit assembling, described flexible print circuit assembling comprises flexible printed circuit board and connector, described connector has web joint, thereby described web joint is to form parallel with the first cantilever flexible cable from the vertical bending of described flexible printed circuit board, provide a kind of electric conductivity epoxy glue between the web joint of wherein said first cantilever flexible cable and flexible print circuit assembling, and by this electric conductivity epoxy glue realization electric connection between the two.
In one embodiment of the invention, the magnetic head cantilever combination also comprises second head arm combination with second cantilever flexible cable, equally, also provide a kind of electric conductivity epoxy glue between another web joint of described second cantilever flexible cable and flexible print circuit assembling, and by this electric conductivity epoxy glue realization electric connection between the two.In one embodiment of the invention, described electric conductivity epoxy glue is anisotropic conductive film (ACF).
In the present invention, described first head arm combination (HAA) comprises first cantilever, first actuating arm, support and the voice coil loudspeaker voice coil with first magnetic head, and wherein, described first cantilever is connected with the first cantilever flexible cable; Described second head arm combination comprises second cantilever with second actuating arm, and wherein, described second cantilever is connected with the second cantilever flexible cable.In the present invention, described first cantilever, support and voice coil loudspeaker voice coil correspondence are overmolded on described first actuating arm; Described second cantilever is overmolded on described second actuating arm.Simultaneously, described first and second cantilever flexible cable also is overmolded in respectively on described first and second cantilever.
Compared with prior art, the present invention adopts the electric conductivity epoxy glue, as anisotropic conductive film (ACF), replaced use connect ball connected mode (for example, connect (ultrasonicbonding) by welding or ultrasound wave), the cantilever flexible cable of magnetic head cantilever combination is connected with flexible print circuit assembling (FPCA), connects ball and it is inserted loaded down with trivial details operation in the narrow and small corner, and efficiently solve the pollution problem of cleaning and element in the prior art thereby avoided making.Secondly, because the present invention goes up in flexible print circuit assembling (FPCA) and forms the U type connector with two web joints, and on described two web joints, form plural connecting terminal, thereby the connecting terminal of feasible connection flexible print circuit assembling (FPCA) and the connecting terminal of cantilever flexible cable are more simple, and electric connection therebetween is also more reliable.In addition, upward special support and flexible print circuit corresponding with it assembling (FPCA) of moulding make that electrical and physical connection between the two is more solid and reliable in first head arm combination (HAA).At last, because the present invention utilizes Overmolded (overmolding) realize between cantilever and the actuating arm be connected and flexible print circuit assembling (FPCA) and cantilever between be connected, thereby make that the manufacture process of magnetic head cantilever combination is simpler, manufacturing cost is also cheaper.
For making the present invention easier to understand, further set forth the specific embodiment of magnetic head cantilever combination of the present invention and manufacture method thereof below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the stereographic map of existing disc driver;
Fig. 2 (a) is the stereographic map of existing magnetic head cantilever combination (HSA);
Fig. 2 (b) is the amplification view of flexible print circuit assembling (FPCA) with cantilever flexible cable (the suspension flexure cables) electric connection of magnetic head cantilever combination among Fig. 2 (a);
Fig. 3 is the three-dimensional exploded view of magnetic head cantilever combination among Fig. 2 (a);
Fig. 4 makes up the stereographic map of (HSA) for magnetic head cantilever of the present invention;
Fig. 5 is the three-dimensional exploded view of magnetic head cantilever combination (HSA) among Fig. 4;
Fig. 6 is the stereographic map of first head arm combination (HAA) of magnetic head cantilever combination among Fig. 5;
Fig. 7 (a) is the stereo amplification figure of the flexible print circuit assembling of magnetic head cantilever combination among Fig. 5;
Fig. 7 (b) is that the support of first head arm combination among Fig. 6 and the solid of flexible print circuit assembling are amplified wiring layout;
Fig. 8 is the stereographic map of second head arm combination (HAA) of magnetic head cantilever combination among Fig. 5;
Fig. 9 is the part stereo amplification figure of first head arm combination among Fig. 6;
Figure 10 is the part stereo amplification figure of magnetic head cantilever combination among Fig. 4, in order to show the electrical connection between flexible print circuit assembling and the cantilever flexible cable;
Figure 11 is the flexible print circuit assembling of magnetic head cantilever combination among Fig. 4 and the electrical connection process synoptic diagram of cantilever flexible cable.
Embodiment
As one embodiment of the invention, Fig. 4 shows the stereographic map of magnetic head cantilever combination of the present invention (HSA).This magnetic head cantilever combination (HSA) comprises first head arm combination, 22 (Head Arm Assembly, HAA) and second head arm combination, 21 (HAA), described second head arm combination, 21 (HAA) are connected first head arm by fastener (indicating) and make up on 22.In one embodiment of the invention, as shown in Figure 5, this fastener comprises pivot member 6 ', packing ring 25 ', nut 26 and screw 23.
As shown in Figure 6, first head arm combination 22 comprises first magnetic head fold piece combination (HGA) with first cantilever part 4 ' and first magnetic head, 3 ' (see figure 9), first actuating arm 5 ' that links to each other with described first cantilever part 4 ', be assemblied in the support 24 of first actuating arm, 5 ' one side, and be embedded in the voice coil loudspeaker voice coil 7 ' that is used to control its motion in described first actuating arm 5 '.
As Fig. 5,6 and shown in Figure 9, first cantilever part 4 ' comprises that this first cantilever flexible cable 20 ' extends to support 24 from described first magnetic head 3 ' by Overmolded (overmolding) first cantilever flexible cable 20 ' formed thereon (suspsion flexure cable).For the ease of understanding the present invention, Fig. 9 shows the situation that first head arm makes up 22 Overmolded (overmolding).Wherein, at least two Overmolded posts 33 are used for fixing described first cantilever part 4 ', and other has at least two Overmolded posts 33 to be used for fixing the first cantilever flexible cable 20 ', and an end of the described first cantilever flexible cable 20 ' is provided with plural connecting terminal 19 '.Described first actuating arm 5 ' is provided with a grounding nail 29 and two connected nails that are embedded into 28 near support 24.Described voice coil loudspeaker voice coil 7 ' is driven by a voice coil motor (VCM, figure does not show), and this voice coil motor is provided with two voice coil loudspeaker voice coil leads (figure does not show) that are welded on the connected nail 28.Simultaneously, the motion that a balance plate 27 is used for balance first actuating arm 5 ' is installed on the voice coil loudspeaker voice coil 7 '.Described connected nail 28, voice coil loudspeaker voice coil 7 ' and balance plate 27 take shape on first actuating arm 5 ' together by Overmolded (overmolding).
Shown in Fig. 7 (b), support 24 comprises that rack body 241 reaches by the extended guide rail 242 of an end of rack body 241.Described rack body 241 comprises by extended support folder 31 of one side and locating pin 30 formed thereon.A flexible print circuit assembling (FPCA) 9 ' is located with support 24 mutually by locating pin 30, and is fixed on the support 24 by support folder 31.Shown in Fig. 7 (a), described flexible print circuit assembling (FPCA) 9 ' comprise a flexible printed circuit board (FPC) 92, be formed at the U-shaped connector 91 of flexible printed circuit board (FPC) 92 1 ends and by the extended connecting pin 93 of flexible printed circuit board (FPC) 92 1 sides.Wherein, be formed with a pilot hole 98 on the described flexible printed circuit board (FPC) 92, this pilot hole 98 can with locating pin 30 corresponding engagings.Described connecting pin 93 is provided with two voice coil loudspeaker voice coil contacts 931 and an earthing contact 932, and wherein, described connected nail 28 and grounding nail 29 can be respectively by stretching out in voice coil loudspeaker voice coil contact 931 and the earthing contact 932.In the present invention, described U-shaped connector 91 comprises two web joints 161,162, this web joint the 161, the 162nd forms from the vertical bending in the both sides of described flexible printed circuit board 92 respectively, and is respectively equipped with plural connecting terminal 16 ', 16 on it " (as shown in Figure 5).In order to adapt to the structure of guide rail 242, described flexible printed circuit board (FPC) 92 bends inwards, and contacts with the inside surface of guide rail 242.
As shown in Figure 8, second head arm combination 21 comprises having second cantilever part 4 " and second magnetic head 3 " first magnetic head fold piece combination (HGA), with described second cantilever part 4 " second actuating arm 5 that links to each other ".Wherein, described second cantilever part 4 " be provided with the second cantilever flexible cable 20 " (suspsion flexure cable).In one embodiment of the invention, described second cantilever part 4 " Overmolded (overmolding) in second actuating arm 5 " on, equally, the second cantilever flexible cable 20 " also by Overmolded (overmolding) and second cantilever part 4 " be connected as a single entity.In the present invention, described second actuating arm 5 " being stamped forms a step, and this step is made up of holding parts 51, connecting portion 53 and the spacer portion 52 that connects described holding parts 51 and connecting portion 53.In the present invention, form two recessed 32 (undercut) of side on the described spacer portion 52 and be used to strengthen described second actuating arm 5 ".In addition, the second cantilever flexible cable 20 " (suspsionflexurecable) end is provided with plural connecting terminal 19 ".In the present invention, second head arm makes up 21 Overmolded situations and first head arm, and to make up 22 Overmolded situations similar, and therefore, in this description will be omitted.
Shown in Fig. 7 (a) and 7 (b), the voice coil loudspeaker voice coil contact 931 of flexible print circuit assembling (FPCA) 9 ' and earthing contact 932 form with connected nail 28 and grounding nail 29 respectively by welding and electrically connect.Simultaneously, voice coil loudspeaker voice coil lead (figure does not show) is owing to welding together with connected nail 28 and electrically connecting with voice coil loudspeaker voice coil contact 931.
In the present invention, the web joint 161 of described vertical bending, 162 respectively with first and second corresponding cantilever flexible cable 20 ', 20 " parallel; thereby; described first and second cantilever flexible cable 20 '; 20 " on connecting terminal 19 ', 19 " with flexible print circuit assembling (FPCA) 9 ' on connecting terminal 16 '; 16 " be aspectant relation, so, described first and second cantilever flexible cable 20 ', 20 " on connecting terminal 19 '; 19 " by epoxy glue (epoxy) respectively with flexible print circuit assembling (FPCA) 9 ' on connecting terminal 16 ', 16 " electrically connect.As shown in figure 11, in one embodiment of the invention, described epoxy glue (epoxy) is a kind of conducting film 34 of tackiness, as anisotropic conductive film (Anisotropic Conductive Film, ACF).These conducting film 34 adhesions also cover on the connecting terminal 19 ' of the described first cantilever flexible cable 20 '.Then, be close to by the described conducting film 34 of a compressing member 35 (bonding tip) on the connecting terminal 16 ' of flexible print circuit assembling (FPCA) 9 ', thereby make the connecting terminal 19 ' of the described first cantilever flexible cable 20 ' link together with connecting terminal 16 '.Then, described compressing member 35 is heated and conducting film 34 is exerted pressure and begun handling procedure.In one embodiment of the invention, other has a support base 36 to be inserted in the U-shaped connector 91 to play a supportive role.Equally, the second cantilever flexible cable 20 " connecting terminal 19 " also with the connecting terminal 16 of flexible print circuit assembling 9 ' (FPCA) " electrically connect by the way, do not describing in detail at this.
Accordingly, the present invention also provides the manufacture method of said head cantilever combination, it may further comprise the steps: (1) moulding has first head arm combination 22 of the first cantilever flexible cable 20 ' and flexible print circuit assembling (FPCA) 9 ', wherein the described flexible print circuit assembling 9 ' of moulding comprises moulding flexible printed circuit board (FPC) 92 and connector 91, wherein the described connector 91 of moulding comprises the vertical bending of described flexible printed circuit board (FPC) 92 is formed a plate 161, makes described web joint parallel with the first cantilever flexible cable 20 '; (2) moulding has the second cantilever flexible cable 20 " second head arm combination 21; wherein the described connector 91 of moulding also comprises the vertical bending of described flexible printed circuit board is formed another web joint 162, makes the web joint 162 and the second cantilever flexible cable 20 " parallel; (3) combination of described first head arm combination of assembling 22 and second head arm 21; Wherein, assembling first head arm combination, 22 and second head arm combination 21 comprises by the electric conductivity epoxy glue with the described first and second cantilever flexible cables 20 ', 20 " with web joint 161,162 electric connections of flexible print circuit assembling 9 ' (FPCA).In one embodiment of the invention, described electric conductivity epoxy glue be anisotropic conductive film (Anisotropic Conductive Film, ACF).In step (1), the described flexible print circuit assembling of moulding 9 ' (FPCA) comprises the step of formed connected pin 93.In the present invention, the described U type of moulding connector 91 is included in and forms plural connecting terminal 16 ', 16 on two web joints 161,162 respectively " step.
In a preferred embodiment of the present invention, described first head arm of moulding combination 22 comprises and forms a grounding nail 29 and two connected nails 28 thereon, wherein, the described connecting pin 93 of moulding further comprises corresponding described grounding nail 29 and two connected nail 28 difference earthing contact 932 of moulding and two voice coil loudspeaker voice coil contacts 931.In the present invention, described first, second cantilever flexible cable 20 ', 20 of moulding " comprise form plural connecting terminal 19 ', 19 respectively thereon ".Wherein, connect the first and second cantilever flexible cables 20 ', 20 " connect described plural connecting terminal 19 ', 19 with flexible print circuit assembling 9 ' (FPCA) by corresponding " with plural connecting terminal 16 ', 16 " realize.
In the present invention, described first head arm combination 22 of moulding further is included in support 24 of one side moulding.The described support 24 of moulding comprises the steps: shaped support main body 241 and guide rail 242.Wherein, the described rack body 241 of moulding is included in the step that the one side forms support folder 31 and forms locating pin 30 thereon.In the present invention, the described flexible printed circuit board of moulding (flexible printed circuit) 92 comprises the steps: corresponding locating pin (alignment pin) pilot holes of 30 moulding (alignmenthole) 98.In the present invention, described first head arm of moulding combination 22 also comprises by described locating pin 30 and pilot hole 98 location, and presss from both sides 31 fixing flexible printed circuit board (PCB)s (FPC) 92 by support and realize being connected between described flexible print circuit assembling 9 ' and the described support 24.
Above disclosedly only be the preferred embodiment of magnetic head cantilever of the present invention combination and manufacture method thereof, certainly can not limit the present invention's interest field with this, therefore the equivalent variations of being done according to the present patent application claim still belongs to the scope that the present invention is contained.
Claims (34)
1. a method of making the magnetic head cantilever combination of hard disk drive comprises the steps:
One of moulding is provided with first head arm combination of the first cantilever flexible cable and flexible print circuit assembling, wherein the described flexible print circuit assembling of moulding comprises moulding flexible printed circuit board and connector, wherein the described connector of moulding comprises the vertical bending of described flexible printed circuit board is formed a plate, makes described web joint parallel with the first cantilever flexible cable;
Link together by the web joint of electric conductivity epoxy glue described first cantilever flexible cable and the assembling of described flexible print circuit, and realization electric connection between the two.
2. the method for manufacturing magnetic head cantilever combination as claimed in claim 1, it is characterized in that: described method further comprises the steps:
Moulding has second head arm combination of the second cantilever flexible cable, and wherein the described connector of moulding also comprises the vertical bending of described flexible printed circuit board is formed another web joint, makes described another web joint parallel with the second cantilever flexible cable;
With the combination of described first head arm and the second head arm combine and assemble together; Wherein, assembling described first head arm combination comprises by the step of electric conductivity epoxy glue with the web joint electric connection of described first and second cantilever flexible cable and the assembling of described flexible print circuit with the combination of second head arm.
3. the method for manufacturing magnetic head cantilever combination as claimed in claim 2, it is characterized in that: described electric conductivity epoxy glue is an anisotropic conductive film.
4. the method for manufacturing magnetic head cantilever combination as claimed in claim 2 is characterized in that:
Described first head arm combination of moulding comprises the steps: that moulding has first cantilever of first magnetic head, first actuating arm, support and voice coil loudspeaker voice coil; Then, the described first cantilever flexible cable is connected with first cantilever;
The combination of described second head arm of moulding comprises that moulding has second cantilever of second actuating arm and the second cantilever flexible cable is connected with second cantilever.
5. the method for manufacturing magnetic head cantilever as claimed in claim 4 combination is characterized in that: described first head arm combination of moulding comprises first cantilever, support and voice coil loudspeaker voice coil is overmolded in respectively on described first actuating arm.
6. the method for manufacturing magnetic head cantilever as claimed in claim 4 combination is characterized in that: described second head arm combination of moulding comprises second cantilever is overmolded in step on second actuating arm.
7. the method for manufacturing magnetic head cantilever combination as claimed in claim 4, it is characterized in that: described first and second cantilever flexible cable takes shape in respectively on first cantilever and second cantilever by Overmolded mode.
8. the method for manufacturing magnetic head cantilever combination as claimed in claim 1 is characterized in that: the described flexible print circuit assembling of moulding comprises the step of formed connected pin.
9. the method for manufacturing magnetic head cantilever combination as claimed in claim 2, it is characterized in that: wherein, described connector is to be formed with plural connecting terminal respectively on U type and its web joint.
10. the method for manufacturing magnetic head cantilever combination as claimed in claim 8 is characterized in that: described first head arm combination of moulding further comprises grounding nail of moulding thereon and at least one connected nail; The described connecting pin of moulding comprises corresponding described grounding nail and at least one connected nail earthing contact of moulding and at least one voice coil loudspeaker voice coil contact respectively.
11. the method for manufacturing magnetic head cantilever as claimed in claim 10 combination is characterized in that: described first head arm combination of moulding comprises the step that described grounding nail and at least one connected nail are electrically connected with earthing contact and at least one voice coil loudspeaker voice coil contact of described connecting pin respectively.
12. the method for manufacturing magnetic head cantilever combination as claimed in claim 9, it is characterized in that: described first, second cantilever flexible cable of moulding comprises the step that forms plural connecting terminal respectively thereon; And, connect the assembling of described first and second cantilever flexible cable and flexible print circuit and be by the connecting terminal on described first and second cantilever flexible cable is linked to each other with connecting terminal on the described connector and realize.
13. the method for manufacturing magnetic head cantilever combination as claimed in claim 1 is characterized in that: the combination of moulding first head arm further is included in support of one side moulding.
14. the method for manufacturing magnetic head cantilever combination as claimed in claim 13, it is characterized in that: the described support of moulding comprises the steps: shaped support main body and guide rail.
15. the method for manufacturing magnetic head cantilever combination as claimed in claim 14 is characterized in that: the described rack body of moulding is included in the step that the one side forms the support folder and forms locating pin thereon.
16. the method for manufacturing magnetic head cantilever combination as claimed in claim 15, it is characterized in that: the described flexible printed circuit board of moulding comprises the steps: pilot hole of corresponding described locating pin moulding.
17. the method for manufacturing magnetic head cantilever combination as claimed in claim 16, it is characterized in that: the combination of described first head arm of moulding further comprises by described locating pin and described pilot hole location, and by the fixed described flexible printed circuit board of support clamping realize described flexible print circuit assemble with described support between be connected.
18. the combination of the magnetic head cantilever of a hard disk drive comprises:
First head arm combination with the assembling of the first cantilever flexible cable and flexible print circuit, described flexible print circuit assembling comprises flexible printed circuit board and connector, described connector has web joint, thereby described web joint is to form parallel with the first cantilever flexible cable from the vertical bending of described flexible printed circuit board; Wherein
Provide a kind of electric conductivity epoxy glue between the web joint of described first cantilever flexible cable and flexible print circuit assembling, and by this electric conductivity epoxy glue realization electric connection between the two.
19. magnetic head cantilever combination as claimed in claim 18, it is characterized in that: described magnetic head cantilever combination further comprises second head arm combination with second cantilever flexible cable, described connector also has another web joint, thereby described another web joint be form from the vertical bending of described flexible printed circuit board parallel with the described second cantilever flexible cable, wherein
Provide a kind of electric conductivity epoxy glue between another web joint of described second cantilever flexible cable and flexible print circuit assembling, and by this electric conductivity epoxy glue realization electric connection between the two.
20. magnetic head cantilever combination as claimed in claim 19, it is characterized in that: described electric conductivity epoxy glue is an anisotropic conductive film.
21. magnetic head cantilever combination as claimed in claim 19 is characterized in that: described first head arm combination comprises first cantilever, first actuating arm, support and the voice coil loudspeaker voice coil with first magnetic head, and wherein, described first cantilever is connected with the first cantilever flexible cable; Described second head arm combination comprises second cantilever with second actuating arm, and wherein, described second cantilever is connected with the described second cantilever flexible cable.
22. magnetic head cantilever combination as claimed in claim 21, it is characterized in that: described first cantilever, support and voice coil loudspeaker voice coil correspondence are overmolded on described first actuating arm.
23. magnetic head cantilever combination as claimed in claim 21, it is characterized in that: described second cantilever is overmolded on described second actuating arm.
24. magnetic head cantilever combination as claimed in claim 21, it is characterized in that: described first and second cantilever flexible cable is overmolded in respectively on described first and second cantilever.
25. magnetic head cantilever combination as claimed in claim 18 is characterized in that: described flexible print circuit assembling comprises connecting pin.
26. magnetic head cantilever combination as claimed in claim 19, it is characterized in that: described connector is the U type, and wherein each web joint is provided with plural connecting terminal.
27. magnetic head cantilever combination as claimed in claim 25 is characterized in that: described first head arm combination comprises a grounding nail and at least one connected nail; Described connecting pin comprises corresponding described grounding nail and at least one connected nail and the earthing contact and at least one the voice coil loudspeaker voice coil contact that are provided with.
28. magnetic head cantilever as claimed in claim 27 combination is characterized in that: described grounding nail and at least one connected nail electrically connect with earthing contact and at least one voice coil loudspeaker voice coil contact of described connecting pin respectively.
29. magnetic head cantilever combination as claimed in claim 26 is characterized in that: respectively be provided with plural connecting terminal on described first and second cantilever flexible cable; Connecting terminal on described first and second cantilever flexible cable links to each other respectively with the connecting terminal on the described connector.
30. magnetic head cantilever combination as claimed in claim 18 is characterized in that: described first head arm combination further comprises a support that is formed on the one side.
31. magnetic head cantilever combination as claimed in claim 30, it is characterized in that: described support comprises rack body and guide rail.
32. magnetic head cantilever combination as claimed in claim 31 is characterized in that: described rack body comprises support folder and the formation locating pin thereon that is formed at the one side.
33. magnetic head cantilever combination as claimed in claim 32 is characterized in that: the corresponding locating pin of described flexible printed circuit board is provided with a pilot hole.
34. magnetic head cantilever combination as claimed in claim 33, it is characterized in that: described locating pin and pilot hole fasten, the fixed described flexible printed circuit board of described support clamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100320985A CN100369119C (en) | 2004-04-02 | 2004-04-02 | Magnetic-head cantilever assembly and its mfg. method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100320985A CN100369119C (en) | 2004-04-02 | 2004-04-02 | Magnetic-head cantilever assembly and its mfg. method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1677505A CN1677505A (en) | 2005-10-05 |
| CN100369119C true CN100369119C (en) | 2008-02-13 |
Family
ID=35049978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100320985A Expired - Fee Related CN100369119C (en) | 2004-04-02 | 2004-04-02 | Magnetic-head cantilever assembly and its mfg. method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100369119C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102467913A (en) * | 2010-10-28 | 2012-05-23 | 新科实业有限公司 | Magnetic head cantilever combination and disk drive |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5844753A (en) * | 1995-04-13 | 1998-12-01 | Nippon Mektron Ltd. | Magnetic head junction board and manufacturing method for the same |
| US6036813A (en) * | 1996-08-20 | 2000-03-14 | Seagate Technology, Inc. | Method of making anisotropic conductive adhesive interconnects for head attachment in rigid disc drive device for manufacturing a groove bearing |
| CN1263334A (en) * | 1999-02-12 | 2000-08-16 | 国际商业机器公司 | Data recording device and magnetic head component |
| US6166888A (en) * | 1997-02-28 | 2000-12-26 | International Business Machines Corporation | Low noise flexible printed circuit cable for a disk drive carriage unit |
| US20030165033A1 (en) * | 2002-01-31 | 2003-09-04 | Kabushiki Kaisha Toshiba | Head support device and recording regenerator having this head support device |
| CN1484826A (en) * | 2001-11-03 | 2004-03-24 | 新科实业有限公司 | Equipment and method for improving microdriving mechanism installing on magnetic head slide block |
-
2004
- 2004-04-02 CN CNB2004100320985A patent/CN100369119C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5844753A (en) * | 1995-04-13 | 1998-12-01 | Nippon Mektron Ltd. | Magnetic head junction board and manufacturing method for the same |
| US6036813A (en) * | 1996-08-20 | 2000-03-14 | Seagate Technology, Inc. | Method of making anisotropic conductive adhesive interconnects for head attachment in rigid disc drive device for manufacturing a groove bearing |
| US6166888A (en) * | 1997-02-28 | 2000-12-26 | International Business Machines Corporation | Low noise flexible printed circuit cable for a disk drive carriage unit |
| CN1263334A (en) * | 1999-02-12 | 2000-08-16 | 国际商业机器公司 | Data recording device and magnetic head component |
| CN1484826A (en) * | 2001-11-03 | 2004-03-24 | 新科实业有限公司 | Equipment and method for improving microdriving mechanism installing on magnetic head slide block |
| US20030165033A1 (en) * | 2002-01-31 | 2003-09-04 | Kabushiki Kaisha Toshiba | Head support device and recording regenerator having this head support device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1677505A (en) | 2005-10-05 |
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