CN1236435C - Adhesive method and method for producing optical head device - Google Patents
Adhesive method and method for producing optical head device Download PDFInfo
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- CN1236435C CN1236435C CNB031064191A CN03106419A CN1236435C CN 1236435 C CN1236435 C CN 1236435C CN B031064191 A CNB031064191 A CN B031064191A CN 03106419 A CN03106419 A CN 03106419A CN 1236435 C CN1236435 C CN 1236435C
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- 239000000853 adhesive Substances 0.000 title claims abstract description 84
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 84
- 230000003287 optical effect Effects 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000007767 bonding agent Substances 0.000 claims description 66
- 239000011248 coating agent Substances 0.000 claims description 17
- 238000000576 coating method Methods 0.000 claims description 17
- CCEKAJIANROZEO-UHFFFAOYSA-N sulfluramid Chemical group CCNS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F CCEKAJIANROZEO-UHFFFAOYSA-N 0.000 claims description 7
- 230000008602 contraction Effects 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000003848 UV Light-Curing Methods 0.000 abstract description 75
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 14
- 239000000758 substrate Substances 0.000 description 14
- 238000001723 curing Methods 0.000 description 7
- 238000007711 solidification Methods 0.000 description 7
- 230000008023 solidification Effects 0.000 description 7
- 239000000835 fiber Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 230000001351 cycling effect Effects 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical class OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 238000005457 optimization Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
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- 230000036262 stenosis Effects 0.000 description 1
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Abstract
To provide a bonding method which, even in the case of adhesive- fixing a plurality of members themselves in a state having a space with a UV-curing adhesive without lowering productivity, does not generate releasing and lowering strengths of the adhesive, and to provide a manufacturing method of an optical head system using the bonding method. In the manufacturing method of the optical head system 1, when an optical element such as a photo-detector 11 and a CD laser diode 5 is adhesive-fixed in a state of a little floating to a frame 3, the UV-curing adhesive R with a regulated viscosity of 20-30 Pa.s at room temperature is used.
Description
Technical field that the present invention belongs to
The present invention relates to the adhering method between the member and use the manufacture method of the optical-head apparatus of this adhering method.
Prior art
In the optical-head apparatus of the record of the optical recording media that is used in CD (compact disk) and DVD (digital video disk) etc. and regeneration, to import object lens by light-conducting system from the ejaculation light of LASER Light Source elements such as laser diode, again will be by the light of object lens pack in the optical recording media pack.Dress cuts object lens and makes lens driver that object lens drive in tracking direction and focus direction etc. on metal or resinous frame here, also loads photo-sensitive cells such as LASER Light Source element and photodiode simultaneously on this frame.
For optical elements such as laser diode or photodiode are loaded in make mostly on the frame first by bonding agent to the be adhesively fixed method of optical element of frame.When making in this way, after a plurality of local adhesive-applying of optical element or frame becomes point-like, adjust the position relation of optical element and frame, or after adjusting the position relation of optical element and frame, a plurality of places between optical element and frame make bonding agent solidify with the point-like adhesive-applying then.
Like this, for optical element is adhesively fixed on the frame, be necessary to make the optical axis position of optical element and focal position to overlap, should after adjusting the position of optical element to frame, three-dimensional be adhesively fixed, in such occasion, optical element should be adhesively fixed with the state that only floats specified gap from frame.
As the used bonding agent that is adhesively fixed like this, in ultraviolet curing bonding agent (the following UV that cries solidifies sticker), as using curable, then most convenient immediately.
, when being adhesively fixed, there is the low or bonding agent of bonding strength problem such as to peel off with the existing UV of curable immediately curing adhesive.Research produces the result of such problem, and the application's inventor obtains following opinion.
At first, too high when being adhesively fixed optical element as if the viscosity of solidifying bonded adhesives with the state that only floats specified gap from frame, shown in Fig. 4 (B), with ball shape coating UV curing adhesive R, differential contraction stress when consequently solidifying as shown by arrow B, act on the direction that to peel off bonding agent, produce the peeling off of UV curing adhesive R, so-called " floating ".
In contrast, if curing adhesive is too low, shown in Fig. 5 (B), UV curing adhesive R hangs significantly when being adhesively fixed optical element with the state that only floats specified gap from frame, the contact area stenosis of UV curing adhesive R and member, and bonding strength descends.
What produce when too high for the viscosity of UV curing adhesive peels off, for example, can be with the method through solidifying after the sufficient time behind the coating UV curing adhesive, or set the method that the uitraviolet intensity be radiated at the UV curing adhesive and elapsed time solidify than the lowland and remove, but for such countermeasure, because limit, member mutual alignment is adjusted on the limit the used unit service factor of bonding agent curing is significantly descended, so bad.Also consider to remove and peel off, but can produce the problem that bonding strength descends when adopting this countermeasure by reducing the coating amount of UV curing adhesive viscosity when too high.
And, also consideration coating, UV curing curing adhesive are adjusted the method for viscosity of UV curing adhesive to the temperature of adjusting UV curing adhesive and atmosphere, but adjust method of viscosity because temperature deviation causes the viscosity change with temperature, control coating quantitative change difficulty etc., quality is because of deviating cause, so bad.
Summary of the invention
In view of above problem, a kind ofly do not produce that bonded adhesives is peeled off when reserving gap state and be adhesively fixed between the member or the adhering method of strength degradation and use the manufacture method of the bare headed manufacturing installation of this adhering method even the object of the present invention is to provide yet.
In order to address the above problem, according to a first aspect of the invention, provide a kind of adhering method, comprising: the step of preparing bonding agent; Clamp the step of first member; Adjust the step of the position of described the 1st member with respect to the 2nd member; The step of the described bonding agent of coating on described the 1st member or the 2nd member; And the described bonding agent irradiation UV that is coated in each position made described bonding agent step of curing, it is characterized in that, when being adhesively fixed the 1st member and the 2nd member to reserve specified gap with bonding agent, apply the state of above-mentioned bonding agent at above-mentioned the 1st member or above-mentioned the 2nd member, this bonding agent has volcano descending open country shape slowly.
The present invention is when accompanying specified gap and be adhesively fixed the 1st member and the 2nd member, and according to the opinion that various research institutes get, with the coating of ball shape, bonding agent is coated in does not have volcano descending open country shape slowly to bonding agent.Thereby when bonding agent solidified, differential contraction stress did not act on the direction that will peel off bonding agent, so can prevent that bonding agent from peeling off, the generation of so-called " floating ".
Among the present invention,, use preferably that viscosity is the bonding agent of 20Pas～30Pas under the room temperature (15 ℃～30 ℃) as above-mentioned bonding agent.
The present invention is when accompanying specified gap and be adhesively fixed the 1st member and the 2nd member, and the opinion that gets according to various research institutes is set in 20Pas～30Pas with the viscosity of bonding agent, and is optimum.Because the viscosity of bonding agent is suitably changed, so bonding agent does not hang.Thereby, owing between bonding agent and member, can guarantee sufficient contact area, can improve the mutual bonding strength of member.Owing to by only adjusting the viscosity energy releasing problem of bonding agent, make the method for adhesive hardens different for a long time, can make unit service factor not descend degradation to keep high productivity with needs.
Viscosity is not limit in 20Pas～30Pas scope, mainly adhesive applicating can be become have volcano descending open country shape slowly, and the contact area of this bonding agent and member does not hang, and can have the viscosity that can fully guarantee.
In the present invention, for example at least one member of above-mentioned the 1st member and above-mentioned the 2nd member, more than per 1 above-mentioned bonding agent 1mg of local coating, after a plurality of places are applied as point-like, with the state of adjusting the mutual alignment relation with this bonding agent be adhesively fixed above-mentioned the 1st member and above-mentioned the 2nd member.
In the present invention, for example, adjust the viscosity of this bonding agent for the filler of tackifier by above-mentioned bonding agent being oozed cooperation.
Among the present invention, above-mentioned bonding agent is a UV curing adhesive for example.
Adhering method of the present invention for example can be applicable to the manufacturing of optical-head apparatus.That is, in the manufacturing process of optical-head apparatus, the light that loading will penetrate from LASER Light Source at the frame of the object lens of optical recording media pack and optical element as above-mentioned the 1st member and above-mentioned the 2nd member separately, when being adhesively fixed with above-mentioned bonding agent, suitable the present invention.Here, above-mentioned optical element for example is LASER Light Source element, photo-sensitive cell or catoptron.Such optical element is because majority is to be installed on the frame with the state that carries out 3 dimension position adjustment, if these optical elements be adhesively fixed on the frame and be suitable for the present invention, owing to optical element is properly mounted on the frame, so can improve the throughput rate and the negative quantity of optical-head apparatus.
The simple declaration of drawing
Fig. 1 is the planimetric map of the optical-head apparatus critical piece that is suitable for of the present invention.
Fig. 2 (A), (B), (C) are respectively the key diagrams of the UV solidification equipment structure used in the optical-head apparatus manufacture method of the present invention of expression, and expression is adhesively fixed CD with the key diagram of the appearance of laser diode or photo-sensitive cell with represent with the UV curing adhesive the be adhesively fixed catoptron (key diagram of completely reflecting mirror appearance) of increase of frame with the UV curing adhesive to frame.
Fig. 3 be in the manufacturing process of optical-head apparatus of the present invention with the UV curing adhesive to the frame process chart of CD that be adhesively fixed with the bonding process of the optical element of laser diode or photo-sensitive cell etc.
Fig. 4 (A), (B) are respectively that the UV curing adhesive that expression viscosity is fit to applies the key diagram of appearance and represents that the too high UV curing adhesive of viscosity applies the key diagram of appearance.
Fig. 5 (A), (B) are respectively that UV curing adhesive that expression is fit to viscosity has been adhesively fixed the key diagram of 2 member appearance and expression with the be adhesively fixed key diagram of 2 member appearance of the too low UV curing adhesive of viscosity.
Fig. 6 is the curve map that the unsteady incidence of the curve map and the expression of relation of incidence and the UV curing adhesive when carrying out temperature cycling test concerns that floats at viscosity and the initial stage of UV curing adhesive of expression UV curing adhesive.
Fig. 7 is the curve map of the relation of expression UV curing adhesive viscosity and bonding strength.
The working of an invention form
Below, with reference to accompanying drawing, illustrate to be suitable for optical-head apparatus of the present invention.
(all structures of optical-head apparatus)
Fig. 1 is the planimetric map of critical piece of optical-head apparatus that carries out the record regenerating of CD, CD-R and DVD.
As shown in Figure 1, optical-head apparatus 1 has resin system or metal frame 3.This frame 3 is by making 2 axis of guide 2A, 2B that machine is installed in parallel to each other through connecting portion 301,302 and 303 and can move along axis of guide 2A, 2B.The optical system of explanation below constituting on this frame 3.
The optical system of optical-head apparatus 1 have the DVD that penetrates the 1st laser beam L1 with laser diode 4 and the CD that penetrates the 2nd laser beam L2 with laser diode 5, lead common light path 6 and can utilize this common light path 6 to carry out whole record regeneratings of CD, CD-R and DVD of the 1st and the 2nd laser beam L1, the L2 that each laser diode 4,5 is penetrated.
DVD is diodes of DVD record, regeneration usefulness with laser diode 4, penetrates the 1st laser beam L1 of wavelength 650nm or 635nm.In addition, CD is that CD and CD-R write down, the diode of regeneration usefulness with laser diode 5, penetrates the 2nd laser beam L2 of wavelength 780～ 800nm.Laser diode 4,5 is provided in the same side of the light-conducting system 20 of common light path 6, so that optical axis L 10 and L20 are parallel to each other.In illustrated example, DVD more is configured in photo-sensitive cell 11 sides than CD with laser diode 5 with laser diode 4 here.
DVD is directly incident on light-conducting system 20 with the 1st laser beam L1 that laser diode 4 penetrates.In addition, CD incides light-conducting system 20 with the 2nd laser beam L2 that laser diode 5 penetrates by diffraction grating 12.Diffraction grating 12 is divided into 3 light beams with CD with the 2nd laser beam L2 that laser diode 5 penetrates by diffraction characteristic attached and regulation.
DVD is pressed in the hole 305 of side 317 upper sheds that are fixed on frame 3 with the state that is installed in circuit substrate 410 with laser diode 4, and is covered with seal box 60 on this circuit substrate 410.Thus, DVD injects to light-conducting system 20 by hole 305 with the 1st laser beam L1 with laser diode 4.
Adhesion CD is fixed on the side 316 of frame 3 with the heat radiator 40 usefulness UV curing adhesives of laser diode 5.Thus, CD is configured in laser diode 5 on the intake section in the hole 306 that is formed on the frame 3, through this hole 306, by diffraction grating 12 the 2nd laser beam L2 is injected to light-conducting system 20.
The circuit substrate 110 usefulness UV curing adhesive R that photo-sensitive cell 11 is installed are fixed on the side 311 of frame 3, therefore, photo-sensitive cell 11 are loaded on the frame 3.
Light-conducting system 20 is made of half-reflecting mirror 21 that possesses part reflecting face and the prism 22 that possesses part reflecting face.Half-reflecting mirror 21 is configured to, and its partial reflection is faced from the states of the 10 one-tenth 45 degree inclinations of optical axis L of the 1st laser beam L1 of laser diode 4 ejaculations.Prism 22 is configured to, and its partial reflection is faced from the states of the 20 one-tenth 45 degree inclinations of optical axis L of the 2nd laser beam L2 of laser diode 5 ejaculations.
In the optical-head apparatus 1 of such formation, has the lens mount 71 of maintenance object lens 9 along the objective lens device 70 of focus direction or tracking direction driving object lens 9.The cylindrical bearing portion 73 that this lens mount 71 has cylindrical shell body 72 and forms in the inboard of this housing section 72.Constituting a pair of tracking on the outer peripheral face of housing section 72 drives with coil 81 and a pair of focusing driving coil 82.
Fulcrum 91 is upright from the seat wall that remains on the seat supports member 35 on the frame 3, and this fulcrum 91 is inserted the inboard of the bearing portion 73 of lens mounts 71, formation outer wall 356 and inwall 357 on the present supporting member 35 are installed with a pair of tracking drive magnet 83 of following the tracks of magnetic loop with tracking direction with drive coil 81 face-offs and formation on outer wall 356.Thereby, can make near lens mount 71 rotation fulcrum 91, follow the tracks of the mistake correction.
On outer wall 356, be installed with and focus on a pair of focusing drive magnet 84 that focuses on magnetic loop with drive coil 82 face-offs and formation.Thereby, lens mount 71 can be moved along the axis direction of fulcrum 91, focus on the mistake correction.
(manufacture method/adhering method of optical-head apparatus)
Fig. 2 (A), (B), (C) are the key diagrams of representing the UV solidification equipment structure of optical-head apparatus of the present invention manufacturing side use respectively, expression is adhesively fixed CD with the key diagram of laser diode 5 or photo-sensitive cell 11 appearance with UV curing adhesive R to frame 3, represents with UV curing adhesive R the be adhesively fixed key diagram of catoptron 8 (completely reflecting mirror) appearance lifted of frame 3.Fig. 3 be in the manufacturing process of optical-head apparatus of the present invention with the UV curing adhesive to the frame process chart of CD that be adhesively fixed with the bonding process of the optical element of laser diode 5 or photo-sensitive cell 11 etc.Fig. 4 (A), (B) are respectively the key diagram of the suitable UV curing adhesive appearance of expression coating viscosity and the key diagram that expression applies the too high UV curing adhesive appearance of viscosity.Fig. 5 (A), (B) are respectively UV curing adhesive that expression is fit to the viscosity key diagram of 2 member appearance and the expression key diagrams with too low fixed 2 the member appearance of UV curing adhesive cementation of viscosity that is adhesively fixed.Fig. 6 is the curve map of the unsteady relation of the relation of floating at viscosity and the initial stage of UV curing adhesive of expression UV curing adhesive and the UV curing adhesive when carrying out temperature cycling test.Fig. 7 is the curve map of the relation of the viscosity of expression UV curing adhesive and bonding strength.
When making optical-head apparatus 1, this form has been fixed DVD with behind the laser diode 4 to frame 3, make DVD luminous with laser diode 4, the circuit substrate 110 that photo-sensitive cell 11 will have been installed by photo-sensitive cell 11 its limits of monitoring in the limit is fixed on the optimum position, CD is lit a lamp with laser diode 5, and the limit is fixed on optimum position with bonding CD with the heat radiator of laser diode 5 by its limits of photo-sensitive cell 11 monitoring.Here, about DVD laser diode 4, by being pressed in the hole 305 that is fixed on frame 3, but with the heat radiator 40 of laser diode 5, be adhesively fixed on the frame 3 by the UV curing adhesive R that is suitable for adhering method of the present invention for the circuit substrate 110 that photo-sensitive cell 11 has been installed and bonding CD.
When being adhesively fixed on frame 3 on laser diode 5 (heat radiator 40) photo-sensitive cell 11 (circuit substrate 110) and CD with UV curing adhesive R, this form is used to have the handle 200 that UV lamp 510, light modulation optical filter 520, optical gate 530, connector 540 and Duo Gen UV irradiation are used the UV solidification equipment 500 of fiber 550 and clamped goods shown in Fig. 2 (A).Here, in UV solidification equipment 500, constitute power circuit 590, make feedback that the irradiation condition feedback of UV uses with fiber 560, UV sensor 570 and control circuit 580, control circuit 580 is according to the instruction that comes with the supervision result or the outside of fiber 560 by feedback, control light modulation optical filter 520, optical gate 530 and power circuit 590 are adjusted by the UV exposure intensity of UV irradiation with fiber 550 irradiations.
For the UV solidification equipment 500 that uses such formation is adhesively fixed on photo-sensitive cell 11 on the frame 3, at first, make the filler that the Si oxide of tackify material is formed by fusion, prepare the viscosity of room temperature (15 ℃～30 ℃) is adjusted to the UV curing adhesive R of the acrylic acid series of 20Pas～30Pas.In the operation ST1 of Fig. 3, frame 3 is installed on the anchor clamps, clamps the circuit substrate 110 that keeps photo-sensitive cell 11 at operation ST2 with handle 200 in addition.Then, at this state, make DVD luminous with laser diode 4 at operation ST3, handle 200 is moved, the three-dimensional position of adjusting the circuit substrate 110 that photo-sensitive cell 11 has been installed with photo-sensitive cell 11 its limits of monitoring in the limit.At this state, between frame 3 and circuit substrate 110, shown in Fig. 2 (B), the clearance G below the 2.5mm degree at leisure.
Then, at operation ST4, shown in Fig. 2 (B), a plurality of places between circuit substrate 110 and frame 3, for example 4 places are by divider point-like ground coating UV curing adhesive R.At this moment, the amount of per 1 local UV curing adhesive R is more than the 1mg, for example is 1.5mg.
Then,, solidify to the UV curing adhesive R of each position coating irradiation UV and useization bonding agent R with fiber 550, then, when operation ST6 handle 200 leaves circuit substrate 110, unload lower bearing bracket 3 from anchor clamps from the irradiation of UV solidification equipment 500 at operation ST5.
When the heat radiator 40 of CD with laser diode 5 of will adhering is adhesively fixed on the frame 3, also identical when being adhesively fixed photo-sensitive cell 11, at first, close the filler of forming by as the Si oxide of tackify material by oozing, use the UV curing adhesive R that the viscosity of room temperature (15 ℃～30 ℃) is adjusted to the acrylic acid series of 20Pas～30Pas.In the operation ST1 of Fig. 3, frame 3 is installed on the anchor clamps, clamps the heat radiator 40 of adhesion CD at operation ST2 with handle 200 in addition with laser diode 5.Then, at this state, make CD luminous with laser diode 5 at operation ST3, the limit moves handle 200 with photo-sensitive cell 11 its limits of monitoring, the three-dimensional position of adjusting adhesion CD with the heat radiator 40 of laser diode 5.At this state, between frame 3 and heat radiator 40, shown in Fig. 2 (B), the optical axis direction position of CD with laser diode 5 adjusted so that heat radiator 40 is moved to optical axis direction at leisure in the gap below the 1mm degree.
Then, at operation ST4, shown in Fig. 2 (B), a plurality of places between heat radiator 40 and frame 3, for example 4 places apply UV curing adhesive R by divider with point-like.At this moment, the amount of per 1 local UV curing adhesive R is more than the 1mg, for example is 1.5mg.
Then, shine UV and UV curing adhesive R is solidified to the UV curing adhesive R that is coated in each position with fiber 550 by the irradiation of UV solidification equipment 500, leave heat radiator 40 at operation ST6 handle 200 then, unload lower bearing bracket 3 from anchor clamps simultaneously at operation ST5.
Shown in Fig. 2 (c), when frame 3 is installed the catoptron 8 that lifts, UV curing adhesive R is adhesively fixed behind the position of the catoptron 8 that also three-dimensional adjustment is lifted, but this method is omitted explanation with the UV curing adhesive that photo-sensitive cell 11 (circuit substrate 110) and CD is identical with the operation that laser diode 5 (heat radiator 40) is adhesively fixed on the frame 3.
In such bonding process, this form is used the viscosity of room temperature is adjusted to UV curing adhesive R below the 30Pas.Thus, during coating UV curing adhesive R, be not applied as the ball shape shown in Fig. 4 (B), and the UV curing adhesive is applied as the volcano descending open country shape slowly that has Fig. 4 shown in (A).Thereby when UV curing adhesive R solidified, differential contraction stress acted on the direction of arrow A all the time, owing to do not act on the direction that will peel off UV curing adhesive R, can prevent the generation of the peeling off of UV curing adhesive R, so-called " floating ".
Promptly, represent the float relation of incidence of the initial stage of the viscosity of UV curing adhesive R and UV curing adhesive R as with dashed lines L1 among Fig. 6, represent the viscosity of UV curing adhesive R with solid line L2 simultaneously and when carrying out 20 temperature cycles for 70 ℃～-30 ℃ the relation of the unsteady incidence of UV curing adhesive R such, in the viscosity of UV curing adhesive R when 30Pas is following, UV curing adhesive R float in the early stage the time do not take place, and incidence is also very low when carrying out temperature cycling test.
This form is owing to use the viscosity of room temperature is adjusted to UV curing adhesive R more than the 20Pas, so it is different during with full-bodied UV curing adhesive shown in coating Fig. 5 (B), shown in Fig. 5 (A), the UV curing adhesive does not hang, and can guarantee sufficient contact area between UV curing adhesive R and member.Therefore, bonding strength height.
That is, as representing the relation of the viscosity of UV curing adhesive R and bonding strength with solid line L3 among Fig. 7, be 20Pas when above in the viscosity of UV curing adhesive R, the bonding strength height.
Like this, in this form because the viscosity of UV curing adhesive R is adjusted to the most suitable condition of 20Pas～30Pas, so floating of UV curing adhesive R do not taken place, and because bonding strength is also high, so the reliability height of bonding portion.
If use this form, just can deal with problems owing to only adjust the viscosity of UV curing adhesive R, the method that bonding agent is solidified with the change expense is different, can make the running rate of device not descend degradation to keep high throughput rate.
(other examples)
In above-mentioned form, after adjusting the position of optical element of photo-sensitive cell 11 grades, a plurality of places between optical element and frame 3 are with point-like coating UV curing adhesive R, but after also can applying UV curing adhesive R with point-like in a plurality of places of optical element or frame 3, carry out the position adjustment of optical element, UV curing adhesive R is solidified.
Such as described above, when the present invention is adhesively fixed the 1st member and the 2nd member by specified gap, apply the state of above-mentioned bonding agent at above-mentioned the 1st member or the 2nd member, this bonding agent is owing to have volcano descending open country shape slowly, not with ball shape adhesive-applying, to have volcano descending open country shape adhesive-applying slowly.Thereby sticking when drawing agent to solidify, differential contraction stress does not act on the direction that bonding agent is peeled off, and can prevent the generation of the peeling off of bonding agent, so-called " floating ".
The viscosity at ambient temperature of bonding agent is set in 20Pas～30Pas, is optimization, because the viscosity of bonding agent is fit to, does not hang so bonding agent does not take place.Thereby, owing to can guarantee the abundant contact area between bonding agent and the member,, just can deal with problems owing to only adjust the viscosity of bonding agent so can improve bonding strength, make the method for bonding agent curing etc. different for a long time with the change expense, can make unit service factor not descend degradation to keep high throughput rate.
Claims (7)
1. adhering method comprises:
Prepare the step of bonding agent;
Clamp the step of the 1st member;
Adjust the step of the position of described the 1st member with respect to the 2nd member;
The step of the described bonding agent of coating on described the 1st member or the 2nd member; And
The described bonding agent irradiation UV that is coated in each position is made described bonding agent step of curing,
It is characterized in that, when being adhesively fixed the 1st member and the 2nd member to reserve specified gap with bonding agent, apply the state of above-mentioned bonding agent at above-mentioned the 1st member or above-mentioned the 2nd member, this bonding agent has volcano descending open country shape slowly, and described open country shape makes differential contraction stress work abreast with respect to adhesive surface.
2. adhering method as claimed in claim 1 is characterized in that, as above-mentioned bonding agent, using the viscosity of room temperature is the bonding agent of 20Pas～30Pas.
3. as claim 1 or 2 any described adhering method, it is characterized in that, after the above-mentioned bonding agent of per 1 local coating 1.5mg of at least one member of the 1st above-mentioned member and above-mentioned the 2nd member and 4 places apply above-mentioned bonding agent with point-like, at the state of adjusting the mutual alignment relation with this bonding agent be adhesively fixed above-mentioned the 1st member and above-mentioned the 2nd member.
4. as any described adhering method of claim 1 to 2, it is characterized in that, adjust the viscosity of this bonding agent for the filler of tackify material by above-mentioned bonding agent being oozed cooperation.
5. as any described adhering method of claim 1 to 2, it is characterized in that above-mentioned bonding agent is the ultraviolet curing bonding agent.
6. the manufacture method of an optical-head apparatus comprises:
Prepare the step of bonding agent;
Clamp the step of the 1st member;
Adjust the step of the position of described the 1st member with respect to the 2nd member;
The step of the described bonding agent of coating on described the 1st member or the 2nd member; And
The described bonding agent irradiation UV that is coated in each position is made described bonding agent step of curing,
It is characterized in that, use the adhering method of any regulation of claim 1 to 5, the ejaculation light pack that loading is made LASER Light Source, and is adhesively fixed with above-mentioned bonding agent as above-mentioned the 1st member and above-mentioned the 2nd member separately at the frame of the object lens of optical recording media and optical element.
7. the manufacture method of optical-head apparatus as claimed in claim 6 is characterized in that, above-mentioned optical element is any in LASER Light Source element, photo-sensitive cell and the catoptron.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002015923 | 2002-01-24 | ||
| JP2002015923 | 2002-01-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1441417A CN1441417A (en) | 2003-09-10 |
| CN1236435C true CN1236435C (en) | 2006-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031064191A Expired - Fee Related CN1236435C (en) | 2002-01-24 | 2003-01-24 | Adhesive method and method for producing optical head device |
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| CN (1) | CN1236435C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101648194B (en) * | 2008-08-13 | 2012-07-18 | 鸿富锦精密工业（深圳）有限公司 | Peptization device and peptization method |
| JP6140670B2 (en) * | 2014-11-17 | 2017-05-31 | 株式会社フジクラ | Semiconductor laser device and manufacturing method thereof |
| US10739381B2 (en) * | 2017-05-26 | 2020-08-11 | Tektronix, Inc. | Component attachment technique using a UV-cure conductive adhesive |
| JP7516191B2 (en) * | 2020-09-29 | 2024-07-16 | 日本発條株式会社 | Manufacturing method and manufacturing device for disk drive suspension |
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2003
- 2003-01-24 CN CNB031064191A patent/CN1236435C/en not_active Expired - Fee Related
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| CN1441417A (en) | 2003-09-10 |
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