CN1250207A - Method for producing magnetic head slug and method for producing combined recording head - Google Patents

Method for producing magnetic head slug and method for producing combined recording head Download PDF

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Publication number
CN1250207A
CN1250207A CN 99119680 CN99119680A CN1250207A CN 1250207 A CN1250207 A CN 1250207A CN 99119680 CN99119680 CN 99119680 CN 99119680 A CN99119680 A CN 99119680A CN 1250207 A CN1250207 A CN 1250207A
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mentioned
block
magnetic
manufacture
head
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羽贺
富美昭
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Alps Alpine Co Ltd
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Alps Electric Co Ltd
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Abstract

To provide such a manufacture of a magnetic head that increases the parallelism of each gap for the first and the second magnetic head and that also increases recording density. With a core precursor 63... fitted in an inserting groove 53..., and with the base part 64 fitted in a notch 54, a nonmagnetic block 71 and a magnetic block 61 are joined to form a composite block 73; the composite block 73 is divided to form a first and a second half block 81, 82. Then, with a gap layer 90 formed on the divided face 83, 84 of at least one of the half blocks 81, 82, the first and the second half block 81, 82 are joined to form a slider precursor 91 that is equipped with plural second magnetic heads 32..., forming a slider 34 by dividing the slider precursor 91 in the longitudinal direction; and the first magnetic head 33 is attached to the side wall of the slider 34.

Description

The manufacture method of head-slider and the manufacture method of combined recording head
The present invention relates to a kind of manufacture method that can on magnetic record medium, carry out the head-slider of highdensity record and reproduction.
Recently, developing a kind of combined recording head that can on the magnetic record medium of deflection, carry out magnetic recording.This combined recording head is that second magnetic head that moves under contactless state and one is with respect to magnetic record medium with respect to magnetic record medium with one, and first magnetic head that moves under contact condition is installed on the slide block and forms.
As first magnetic head, for example, can enumerate the big slidingtype magnetic head of track width and do example; And as second magnetic head, for example, can enumerate the little formula magnetic head that floats of track width and do example.
In having the magnetic recording system of this combined recording head, utilize first magnetic head, can guarantee interchangeability for existing floppy disk; Simultaneously, utilize second magnetic head, can carry out highdensity magnetic recording and reproduction.
For in the interchangeability that keeps for floppy disk, realize highdensity magnetic recording, must make the gap of second magnetic head and the gap of first magnetic head, parallel to each other configuration.
The manufacture method of existing combined recording head is described with reference to Figure 15 now.At first, clamp the clearance layer that dispenses among the figure,, make second magnetic head 1 by engaging by half electromagnet core 11,12 that magnetic material is made.This second magnetic head 1 has the enhancing of joint hole 19 and coil hole 13; And, the low-melting glass 16 of specified gap width ... be embedded in this second magnetic head.
In addition, by on a surface 21 of the block of making by nonmagnetic substance 2,, make a plurality of insertion grooves 22 along the length direction of this block 2 Simultaneously, towards the length direction extension of this block 2, on this surface 21, make and above-mentioned each insertion groove 22 ... the coil that is communicated with produces slide block block 24 with groove 23.
Secondly, make second magnetic head 1 ... coil hole 13 ... with the coil of slide block block 24 position consistency, with second magnetic head 1 with groove 23 ... insert each insertion groove 22 of slide block block 24 ... in, the semi-manufacture 3 of manufacturing slide block.
Then, in the longitudinal direction, equally spaced cut off the semi-manufacture 3 of this slide block, form slide block 6.The upper surface 6a of lapping sliders 6 and lower surface 6b again adjust the gap depth of second magnetic head 1.
Follow, the 1st magnetic head 4 is installed on the sidewall surfaces of slide block 6, coiling in the coil hole 13 of second magnetic head 1 is made the shape of regulation with each magnetic head 1,4 and recording medium facing surfaces, can produce combined recording head 5.
But, in the manufacture method of existing combined recording head, because will be with second magnetic head 1, insert the insertion groove 22 of slide block block 24 singly ... in, when second magnetic head 1 ... the depth of parallelism in each gap when some deviations is arranged a little, keep the second all magnetic heads 1 ... the gap parallel to each other, simultaneously, with this second magnetic head 1 ... be installed in the slide block block 24 is the comparison difficulty.Therefore,, be difficult to make the gap of second magnetic head 1 when first magnetic head 4 being installed in when cutting off on the slide block 6 that slide block semi-manufacture 3 draw, parallel with the gap of first magnetic head.This is a problem.
The present invention proposes in order to address the above problem, its objective is the manufacture method that a kind of magnetic head will be provided, this method can also improve recording density when improving the head gap with respect to the depth of parallelism in the gap of the gap of the bearing accuracy of slide block and second magnetic head and first magnetic head.
In order to achieve the above object, the present invention adopts following structure.
The manufacture method of head-slider of the present invention is on the block of being made by nonmagnetic substance, to make at least more than one insertion groove, and form the nonmagnetic material block; Form again by magnetic material and make, have a half-finished magnetic block of at least more than one magnetic core that can embed the convex shape in the above-mentioned insertion groove; Above-mentioned magnetic core semi-manufacture are embedded in the above-mentioned insertion groove, above-mentioned nonmagnetic material block and above-mentioned magnetic block are engaged, form composite block; By cutting apart above-mentioned composite block, with above-mentioned magnetic core semi-manufacture separated into two parts, then be divided into two parts the half of magnetic core semi-manufacture that constitute by above-mentioned magnetic core semi-manufacture, form the first half of block and the second half of block that have the dividing surface that exposes respectively; On the dividing surface of at least one block of the above-mentioned first and second half of blocks, make the coil groove, form clearance layer simultaneously again; By above-mentioned each dividing surface is relative, the above-mentioned first and second half of blocks are engaged, the coil hole that constitutes by above-mentioned coil groove then, expose from the side, and, clamped the magnetic head that on a pair of above-mentioned half of magnetic core semi-manufacture, forms by above-mentioned clearance layer, constituted the slide block semi-manufacture that at least more than one forms like this; By cut apart this slide block semi-manufacture along its length direction, form slide block with a magnetic head.
In addition, the manufacture method of head-slider of the present invention is exactly the manufacture method of described head-slider just now.It has following characteristics, on the half-finished upper surface of above-mentioned slide block, along the half-finished length direction of above-mentioned half of magnetic core, makes and clamps half-finished two grooves of a pair of above-mentioned half of magnetic core, in these two grooves, charges into nonmagnetic glass.
Again, the manufacture method of head-slider of the present invention is exactly the manufacture method of aforesaid head-slider.It also has following characteristics, by grinding the half-finished upper surface of above-mentioned slide block, adjusts the interval between this upper surface and the above-mentioned coil hole, thereby adjusts the gap depth of above-mentioned second magnetic head.
Fig. 1 is the stereographic map of the combined recording head of embodiments of the invention;
Fig. 2 is the planimetric map of the combined recording head of embodiments of the invention;
Fig. 3 is the front view of the combined recording head of embodiments of the invention;
Fig. 4 is the side view of the combined recording head of embodiments of the invention;
Fig. 5 is the stereographic map of first magnetic head of the combined recording head of embodiments of the invention;
Fig. 6 is the planimetric map of first magnetic head of the combined recording head of embodiments of the invention;
Fig. 7 is the front view of first magnetic head of the combined recording head of embodiments of the invention;
Fig. 8 is the planimetric map of second magnetic head of the combined recording head of embodiments of the invention;
Fig. 9 is the front view of second magnetic head of the combined recording head of embodiments of the invention;
Figure 10 is the side view of second magnetic head of the combined recording head of embodiments of the invention;
Figure 11 is the process chart of manufacture method of the combined recording head of embodiments of the invention;
Figure 12 is the process chart of manufacture method of the combined recording head of embodiments of the invention;
Figure 13 is the process chart of manufacture method of the combined recording head of embodiments of the invention;
Figure 14 is the process chart of manufacture method of the combined recording head of embodiments of the invention;
Figure 15 is the process chart of the manufacture method of the existing combined recording head of expression.
Below, describe the present invention in detail.
As shown in Figures 1 to 4, combined recording head 31 of the present invention constitutes by second magnetic head, 32, the first magnetic heads 33 with by the slide block 34 (supporting mass) that nonmagnetic substance is made.
Slide block 34 is by having with recording medium facing surfaces 55 and supporting the air bearing part 35 of this second magnetic head 32 and highlight from this air bearing part 35, and the coupling part 57 of supporting first magnetic head 33 constitutes.
First magnetic head 33 is by bonding bonding with the coupling part 57 of slide block 34 with glass etc.
As first magnetic head, for example, can enumerate the big slidingtype magnetic head of track width as an example; And as second magnetic head, for example, can enumerate track width little float the formula magnetic head as an example.
And for example Fig. 1 to Fig. 4 and Fig. 8 be to shown in Figure 10, second magnetic head 32, and on the end by the air bearing part 35 that is bearing in slide block 34, the magnetic core of making by magnetic material 36,37; On the butting surface that is located at magnetic core 36,37, from the clearance G of exposing with recording medium facing surfaces 55 3Constitute.In addition, with recording medium facing surfaces 55 on, make and be used to limit clearance G 3The track width limiting groove 38,38 of track width; Non magnetic glass 39,39 is charged in this track width limiting groove 38,38.
In addition, the sidewall surfaces of air bearing part 35 is provided with coil hole 40.
To shown in Figure 10, the magnetic core 36,37 of second magnetic head 32 is imbedded in the air bearing part 35 as Fig. 8, and coil hole 40 is separated by magnetic core 36,37, by coil hole 40, can wind the line on magnetic core 36.In addition, magnetic core 36,37 surrounds coil hole 40, forms the magnetic circuit that is roughly annular.
The clearance layer that does not illustrate among the figure is clamped in clearance G 3Circle on two magnetic films not illustrating, these clearance layer and magnetic film are clamped on magnetic core 36,37 again.Clearance layer is made by nonmagnetic substance, for example, can use SiO 2, Al 2O 3, CrSiO 2Deng.In addition, magnetic film uses the magnetoconductivity magnetically soft alloy higher than the magnetoconductivity of magnetic core 36,37 to make.For example, under the situation about being made by ferrite, as magnetic film, (Ta, Hf)-C is an alloy, Fe-Si-Al is an alloy, Fe-Ni alloy and amorphous alloy etc. can to use Fe-at this magnetic core 36,37.
And for example Fig. 1 to Fig. 4 and Fig. 5 are to shown in Figure 7, and the magnetic head 42 that first magnetic head 33 is used with magnetic head 41 and cancellation by record and reproduction constitutes.Record is used magnetic core 43 and shared magnetic core 44 with to reproduce with magnetic head 41 are records of being made by magnetic material with reproducing, and on the butting surface of each magnetic core 43,44, form, the clearance G from exposing with recording medium facing surfaces 47 4Constitute.In addition, on this and recording medium facing surfaces 47, make and be used to limit clearance G 4The groove 45,45 of track width, nonmagnetic glass 46,46 is charged in the groove 45,45.Record and used magnetic core 43 and shared magnetic core 44 again utilize the glass 48 of the joint enhancing usefulness on the relative side that is arranged on above-mentioned and recording medium facing surfaces 47 to be joined together.
The magnetic head 42 that cancellation is used, the cancellation of being made by magnetic material be with magnetic core 49 and shared magnetic core 44, and the clearance G that forms on the butting surface of each magnetic core 49,44, exposes from this and recording medium facing surfaces 47 5, G 5Constitute.On this and recording medium facing surfaces 47, be provided with and limit each clearance G 5, G 5The groove 50,50,51 of width.Non magnetic glass 52,52,53 is charged into groove 50,50, in 51.Clearance G 5, G 5Disconnect the width ratio gap G of groove 51 by groove 51 (non magnetic glass 53) 4Width smaller, perhaps with clearance G 4Width about equally.
In addition, magnetic core 49 that cancellation is used and shared magnetic core 44, utilization is arranged on this and is joined together with glass 48 with the joint enhancing of a relative side of recording medium facing surfaces 47.
Moreover, on first magnetic head 33, be provided with above-mentioned record and used magnetic core 43 again, the magnetic core 49 that shared magnetic core 44 and cancellation are used, the behind magnetic core 58 that aspect magnetic, combines; This magnetic core 58 is with this each magnetic core 43,44, and 49 couple together.
Secondly, the manufacture method of this combined recording head 31 is described with reference to Figure 11 to Figure 14.
At first, in Figure 11, be ready to rectangular block of making by nonmagnetic substance 51 and the rectangular block of making by magnetic material 61.
Secondly, on the sidewall surfaces 52 of block 51, make a plurality of insertion grooves 53 ...Best, each insertion groove 53 ... be at length direction, when making, make along the Width extension of block 51 again with given interval along block 51.In addition, best, each insertion groove 53 ... interior side-wall surface vertical with the sidewall surfaces 52 of block 51.
On the sidewall surfaces 52 of block 51, make notch portion 54 again.This notch portion 54 is the sidewall surfaces 52 by cutting this block 51 preferably, with the bottom surface that is connected with this sidewall surfaces 52 50 the two bonding part 52a and form, and extend, with each insertion groove 53 along the length direction of block 51 ... be communicated with.This notch portion 54 preferably is cut to when side wall surface 52 begins to calculate this insertion groove 53 ... degree of depth h 2The degree of depth about equally.In addition, notch portion 54 preferably 50 is cut to degree of depth h from the bottom surface 7Like this, by processing this block 51, just made the block 71 of above-mentioned nonmagnetic material.
In addition, by a surface 62 of cutting block 61, form the semi-manufacture 63 of the magnetic core of a plurality of convex shape ..., just made and had base part 64, with a face 65 from this base part 64, vertical outstanding a plurality of magnetic core semi-manufacture 63 ... magnetic block 66.
The width h of block 61 1, preferably and the degree of depth of insertion groove 53 (degree of depth that begins to calculate from the sidewall surfaces 52 of notch portion 54) h 2Equate.In addition, preferably with these magnetic core semi-manufacture 63 ... make insertion groove 53 with nonmagnetic material block 71 ... the shape unanimity; Particularly, with each magnetic core semi-manufacture 63 ... the interval make and insertion groove 53 ... the interval equate, with these magnetic core semi-manufacture 63 ... height h 3Make and insertion groove 53 ... height h 4Equate, with these magnetic core semi-manufacture 63 ... the width h on block 61 5(width on the direction parallel with the length direction of block 61) made and insertion groove 53 ... width h 6Equate.The thickness h of base part 64 8, preferably and the degree of depth h of notch portion 54 7Equate.
The magnetic core semi-manufacture 63 of the magnetic block of making like this 66 ..., can embed the insertion groove 53 of nonmagnetic material block 71 ... in; And base part 64 can embed in the above-mentioned notch portion 54.
Secondly, by with a plurality of magnetic core semi-manufacture 63 ... embed a plurality of insertion grooves 53 ... in the time, base part 64 is embedded in these notch portion 54, nonmagnetic material block 71 and magnetic block 72 are engaged, form composite block 73.
Because magnetic core semi-manufacture 63 ... with insertion groove 53 ..., and base part 64 and notch portion 54, can be like that mutual chimeric as mentioned above, therefore, nonmagnetic material block 71 and magnetic block 72 almost can seamlessly engage each other closely.
Therefore, composite block 73 be shaped as rectangular parallelepiped, roughly the same with the shape of block 51.Magnetic core semi-manufacture 63 ... end face 63a, expose on a surface 74 of composite block 73; And the sidewall surfaces 67 of magnetic block 66 is exposed on the sidewall surfaces 75 of composite block 73.
Then, in Figure 12, composite block 73 is cut apart, formed the first half of block 81 and the second half of block 82.
When cutting apart composite block 73, preferably will be installed in the nonmagnetic material block 66 in this composite block 73,, be divided into two half of parts along its length direction.That is, when cutting apart composite block 73, the first half of block 81 and the second half of block 82 dividing surface 83,84 separately, parallel with the sidewall surfaces 75 of composite block 73.
Like this, by cutting apart composite block 73, magnetic block 66 is divided into two parts, these magnetic core semi-manufacture 63 ... cut apart and formed half of magnetic core semi-manufacture 63 b and half of magnetic core semi-manufacture 63c.These one side of something magnetic core semi-manufacture 63b exposes from the dividing surface 83 of the first half of block 81; Half of magnetic core semi-manufacture 63c, then the dividing surface 84 from the second half of block 82 exposes.
Simultaneously, base part 64 is also cut apart half of base part 64b of formation and 64c.The half of base part 64b and first half of block 81 combinations, the half of base part 64c and second half of block 82 combinations.
Secondly, on the dividing surface separately 83,84 of the first half of block 81 and the second half of block 82, make coil groove 85,86 and engage enhancing groove 87,88. Coil groove 85,86 strengthens groove 87,88, a surface 74,74 of more close composite block 73 than engaging.When the first and second half of blocks 81,82 are engaged, preferably make dividing surface 83,84 toward each other, make coil groove 85,86 and engage the position that strengthens groove 87,88 groove separately roughly the same.
In addition, making coil groove 85,86 and engaging enhancing groove 87,88 o'clock, must make the half of magnetic core semi-manufacture 63b that imbeds in the first and second half of blocks 81,82 ... with half of magnetic core semi-manufacture 63c ..., do not blocked by coil groove 85,86 and joint enhancing groove 87,88.That is, must make coil groove 85,86 and engage the degree of depth that strengthens groove 87,88, than half of magnetic core semi-manufacture 63b ... with half of magnetic core semi-manufacture 63c ... length of embedment (degree of depth that begins to calculate from each dividing surface 83,84) little.In addition, coil groove 85,86 also can only form arbitrarily on one side.
Again, at the dividing surface 83,84 of the first and first half of block 81,82, coil groove 85,86 and joint strengthen on the groove 87,88, form magnetic film 89,89 respectively; And on these magnetic films 89,89, the stacked clearance layer of making by nonmagnetic substance 90,90.90 of clearance layer are made also passable in the first and second half of blocks 81,82 any.In addition, the formation in first, second half of block 81,82 any of 89,89 of this magnetic films also can; Do not form passable fully yet.
Secondly, charge into joint by the non magnetic glass 94 that will engage usefulness and strengthen in the groove 87,88, the first half of block 81 and the second half of block 82 are engaged, and form the semi-manufacture 91 of slide block.At this moment,, make an integral body respectively, then,, make coil hole 40 and engage enhancing hole 93 towards the length direction extension of these slide block semi-manufacture 91 from the sidewall surfaces of these slide block semi-manufacture 91 by coil groove 85,86 and joint are strengthened groove 87,88.In addition, half of magnetic core semi-manufacture 63b ... with half of magnetic core semi-manufacture 63c ..., expose from the inner periphery surface in coil hole 40 and joint enhancing hole 93; Clearance layer 90 is exposed from the inner periphery surface 40a on the top of coil hole 40.
On the surface 95 that dividing surface 83,84 connects, the clearance layer 90,90 that forms on the first and second half of blocks 81,82 engages one another respectively.
Like this, half of magnetic core semi-manufacture 63b ... with half of magnetic core semi-manufacture 63c ..., by clamping gap layer 90 and two magnetic films 89,89 and butt joint is got up, form the magnetic core 36 of second magnetic head 32 ..., 37 ...The butting surface of these magnetic cores 36,37 just becomes the clearance G of second magnetic head 32 3
Secondly, on Figure 13, by grinding clearance G 3The distance between coil hole 40 and this surface 96 is adjusted, clearance-adjustable G in a surface 96 of exposing 3Gap depth G dBecause clearance layer 90 is exposed on the inner periphery surface 40a of the top of a surface 96 and coil hole 40, therefore, gap depth G dEquate with the interval between this surface 96 and the coil hole 40.Because coil hole 40 is exposed from the sidewall surfaces of slide block semi-manufacture 91, therefore, can measure the interval between this coil hole 40 and this surface 96 at any time, thereby the degree of depth G of adjusting play d
In addition, by grinding another surface 97 relative with this surface 96, can (half of base part 64b, in the time of 64c), cutting engages and strengthens hole 93, and the glass 94 of joint usefulness is exposed in cutting base part 64.Like this, by the cutting base part 64 (half of base part 64b, 64c), divisible will be by base part 64 (half of base part 64b, 64c) a plurality of magnetic cores 36 of Lian Jieing ..., 37 ..., block into single magnetic head.
Secondly, on a surface 96 of slide block semi-manufacture 91, by clamping magnetic head 36 ..., 37 ... (half of magnetic core semi-manufacture 63b ..., 63c ...), make two restriction clearance G 3The track width limiting groove 38,38 of track width.This track width limiting groove 38,38th, by the length direction along the magnetic core 36,37 that exposes from this surface 96, grinding is the part of this magnetic core 36,37 at least, and the narrowed width of magnetic core 36,37 is formed.Like this, by grinding the part of magnetic core 36,37, form track width limiting groove 38,38, on butting surface 95, the cross sectional shape of this magnetic core 36,37 is for roughly being convex shape.
Again non magnetic glass 39 is charged into this magnetic track limiting groove 38,38.Non magnetic glass 39 under molten condition, is imbedded in the track width limiting groove 38,38, allows it overflow again, is coated on the surface 96 of slide block semi-manufacture 91.
Secondly, in Figure 14, remove the non magnetic glass 39 that overflows on this surface 96.In addition,, keep peripheral part of magnetic core 36,37 and track width limiting groove 38,38, form above-mentioned air bearing part 35 by grinding a surface 96 of these slide block semi-manufacture 91 ... with coupling part 57.On this air bearing part 35, make and recording medium facing surfaces 55.Imbed non magnetic glass 39,39 and clearance G in this magnetic core 36,37 and the track width limiting groove 38,38 3, expose from this and recording medium facing surfaces 55.In addition, along the length direction of slide block semi-manufacture 91, on the sidewall surfaces 96 of these slide block semi-manufacture 91, make coil groove 56.In addition, also have on track width, do not form the structure of above-mentioned track width limiting groove 38,38.
Then, on the border of air bearing part 35 and coupling part 57, when these slide block semi-manufacture 91 are cut apart, form slide block 34 by the end 1 00 that cuts coupling part 57.
Slide block 34 is to be made of air bearing part 35 and coupling part 57 that nonmagnetic substance is made. Magnetic core 36,37 by magnetic material is made passes through clearance G 3Second magnetic head 32 that butt joint forms is imbedded in this air bearing part 35.
Secondly, by the bonding glass of using, first magnetic head 33 is installed on the coupling part 57 of slide block 34, by each magnetic head 32,33 is carried out polishing with recording medium facing surfaces 47,54, make given shape, promptly made combined recording head 31 as shown in Figures 1 to 4.
In the manufacture method of above-mentioned combined recording head 31, owing to form slide block semi-manufacture 91 with a plurality of second magnetic heads, again first magnetic head 33 is installed in again on the slide block 34 (supporting mass) of cutting apart these slide block semi-manufacture 91 and forming, therefore, by slide block semi-manufacture 91, can draw a plurality of combined recording heads 31, the throughput rate of combined recording head 31 is improved.
In the manufacture method of above-mentioned combined recording head 31, because the magnetic core semi-manufacture 63 that will connect respectively by base part 64 ..., insert a plurality of insertion grooves 53 ... in, therefore, can on slide block semi-manufacture 91, make resulting second magnetic head 32 parallel to each other ... clearance G 3Because first magnetic head 33 is installed on the slide block 34 of cutting apart these slide block semi-manufacture 91 formation, therefore, can dispose the clearance G of second magnetic head 32 abreast again 3Clearance G with first magnetic head 33 4, G 5, G 5
In the manufacture method of above-mentioned combined recording head 31, owing to cut apart composite block 73, form clearance layer 90, form a plurality of second magnetic heads 32 simultaneously, therefore, in the throughput rate that improves second magnetic head 32, also can make the quality of second magnetic head 32 keep certain.
In addition, in the manufacture method of above-mentioned combined recording head 31,, form slide block semi-manufacture 91 owing on the dividing surface 83,84 of the first and second half of blocks 81,82, make coil groove 85,86 and engage enhancing groove 87,88, and these blocks 81,82 are engaged; Therefore, can at an easy rate on slide block semi-manufacture 91, make coil hole 40, simultaneously, can utilize to imbed to engage the joint glass that strengthens in the groove 87,88, these blocks 81,82 securely are bonded together.
In the manufacture method of above-mentioned combined recording head 31, owing to, form a pair of restriction clearance G by clamping half of magnetic core semi-manufacture 3The track width limiting groove 38,38 of track width; Therefore, can shorten the length of track width limiting groove 38,38 and reduce the interval of these grooves 38,38, thereby dwindle clearance G 3Track width, the recording density of second magnetic head 32 is improved.
In addition, in the manufacture method of above-mentioned combined recording head 31,, adjust the gap depth G of second magnetic head 32 when a surface 96 of lapping sliders semi-manufacture 91 dThe time, owing to can confirm the interval of this surface 96 and coil hole 40, and adjusted, therefore, the degree of depth G of adjusting play accurately d
In addition, in the manufacture method of above-mentioned combined recording head, first magnetic head and second magnetic head are formed compound magnetic head; But not only be confined to this, for example, also can only second magnetic head be installed on the slide block and form head-slider.
As described above in detail, in the manufacture method of combined recording head of the present invention, owing to will insert by the magnetic core semi-manufacture that base part connects respectively in a plurality of insertion grooves, therefore, can on the slide block semi-manufacture, form each gap of second magnetic head that is drawn parallel to each other.Cut apart on the slide block (supporting mass) that these slide block semi-manufacture form owing to first magnetic head is installed in again, therefore, can dispose the gap of second magnetic head and the gap of first magnetic head abreast.
In addition, in the manufacture method of head-slider of the present invention,, can form a plurality of magnetic heads simultaneously with the gap that forms by clearance layer owing to, form clearance layer by cutting apart composite block; Therefore, can improve the throughput rate of magnetic head, simultaneously, make the quality of second magnetic head keep certain.
Again, in the manufacture method of head-slider of the present invention,, these blocks are engaged, form the slide block semi-manufacture owing on each dividing surface of the first and second half of blocks, make the coil groove respectively and engage the enhancing groove; Therefore, be easy on these slide block semi-manufacture, make coil hole, simultaneously, can utilize the joint glass of imbedding in this joint enhancing groove, securely these blocks are joined together.
In the manufacture method of head-slider of the present invention, because can be by clamping half of magnetic core semi-manufacture, form the track width limiting groove of the track width in a pair of restriction gap, therefore, can shorten the length of this track width limiting groove, can dwindle the interval of these grooves, thereby can reduce the track width in this gap, improve the recording density of magnetic head.
In addition,, make above-mentioned track width limiting groove again, therefore, can carry out the adjustment of magnetic head magnetic core reliably, their are arranged in a straight line owing to be after half of magnetic core semi-manufacture are docked.
Moreover, in the manufacture method of head-slider of the present invention, because when the half-finished surface of lapping sliders, when adjusting the degree of depth of head gap, can measure the interval between this surface and the coil hole and adjust, therefore, the adjusting play degree of depth accurately.

Claims (4)

1. the manufacture method of a head-slider is characterized by, and on the block of being made by nonmagnetic substance, makes at least more than one insertion groove, and forms the nonmagnetic material block;
Form again by magnetic material and make, have a half-finished magnetic block of at least more than one magnetic core that can embed the convex shape in the above-mentioned insertion groove;
Above-mentioned magnetic core semi-manufacture are embedded in the above-mentioned insertion groove, above-mentioned nonmagnetic material block and above-mentioned magnetic block are engaged, form composite block;
By cutting apart above-mentioned composite block, with above-mentioned magnetic core semi-manufacture separated into two parts, then be divided into two parts the half of magnetic core semi-manufacture that constitute by above-mentioned magnetic core semi-manufacture, form the first half of block and the second half of block that have the dividing surface that exposes respectively;
On the dividing surface of at least one block of the above-mentioned first and second half of blocks, make the coil groove, form clearance layer simultaneously again;
By above-mentioned each dividing surface is relative, the above-mentioned first and second half of blocks are engaged, the coil hole that constitutes by above-mentioned coil groove then, expose from the side, and, clamped the magnetic head that on two above-mentioned half of magnetic core semi-manufacture, forms by above-mentioned clearance layer, constituted the slide block semi-manufacture that at least more than one forms like this;
By cut apart this slide block semi-manufacture along its length direction, form slide block with a magnetic head.
2. the manufacture method of a combined recording head, it is characterized by, when making combined recording head on a supporting mass of first magnetic head and second magnetic head supporting, on the block of making by nonmagnetic substance, make at least more than one insertion groove, and form the nonmagnetic material block;
Form again by magnetic material and make, have a half-finished magnetic block of at least more than one magnetic core that can embed the convex shape in the above-mentioned insertion groove;
Above-mentioned magnetic core semi-manufacture are embedded in the above-mentioned insertion groove, above-mentioned nonmagnetic material block and above-mentioned magnetic block are engaged, form composite block;
By cutting apart above-mentioned composite block, with above-mentioned magnetic core semi-manufacture separated into two parts, then be divided into two parts the half of magnetic core semi-manufacture that constitute by above-mentioned magnetic core semi-manufacture, form the first half of block and the second half of block that have the dividing surface that exposes respectively;
On the dividing surface of at least one block of the above-mentioned first and second half of blocks, make the coil groove, form clearance layer simultaneously again;
By above-mentioned each dividing surface is relative, the above-mentioned first and second half of blocks are engaged, the coil hole that constitutes by above-mentioned coil groove then, expose from the side, and, clamped the magnetic head that on two above-mentioned half of magnetic core semi-manufacture, forms by above-mentioned clearance layer, constituted the slide block semi-manufacture that at least more than one forms like this;
By along its length direction, cut apart this slide block semi-manufacture, form slide block with one second magnetic head;
Above-mentioned first magnetic head is installed on the sidewall surfaces of this slide block.
3. the manufacture method of head-slider as claimed in claim 1 is characterized by, on the half-finished upper surface of above-mentioned slide block, along the half-finished length direction of above-mentioned half of magnetic core, make and clamp the half-finished a pair of groove of above-mentioned half of magnetic core, in this a pair of groove, charge into non magnetic glass.
4. the manufacture method of head-slider as claimed in claim 3 is characterized by, and by grinding the half-finished upper surface of above-mentioned slide block, adjusts the interval between this upper surface and the above-mentioned coil hole, thereby adjusts the gap depth of said head.
CN 99119680 1998-10-02 1999-09-27 Method for producing magnetic head slug and method for producing combined recording head Pending CN1250207A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10281826A JP2000113439A (en) 1998-10-02 1998-10-02 Manufacture of composite magnetic head
JP281826/1998 1998-10-02

Publications (1)

Publication Number Publication Date
CN1250207A true CN1250207A (en) 2000-04-12

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CN 99119680 Pending CN1250207A (en) 1998-10-02 1999-09-27 Method for producing magnetic head slug and method for producing combined recording head

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JP (1) JP2000113439A (en)
CN (1) CN1250207A (en)

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Publication number Publication date
JP2000113439A (en) 2000-04-21

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