WO2012147611A1 - オプトデバイスの製造方法および製造装置 - Google Patents
オプトデバイスの製造方法および製造装置 Download PDFInfo
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- WO2012147611A1 WO2012147611A1 PCT/JP2012/060586 JP2012060586W WO2012147611A1 WO 2012147611 A1 WO2012147611 A1 WO 2012147611A1 JP 2012060586 W JP2012060586 W JP 2012060586W WO 2012147611 A1 WO2012147611 A1 WO 2012147611A1
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- Prior art keywords
- liquid resin
- nozzle
- sealing
- curing
- substrate
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 63
- 230000003287 optical effect Effects 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims description 21
- 229920005989 resin Polymers 0.000 claims abstract description 190
- 239000011347 resin Substances 0.000 claims abstract description 190
- 238000007789 sealing Methods 0.000 claims abstract description 69
- 239000004065 semiconductor Substances 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims description 187
- 239000000463 material Substances 0.000 claims description 60
- 239000000758 substrate Substances 0.000 claims description 31
- 230000008569 process Effects 0.000 claims description 14
- 230000009974 thixotropic effect Effects 0.000 claims description 8
- 239000007791 liquid phase Substances 0.000 abstract 4
- 238000001723 curing Methods 0.000 description 58
- 238000003860 storage Methods 0.000 description 20
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 10
- 230000032258 transport Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 229920002050 silicone resin Polymers 0.000 description 4
- 230000008859 change Effects 0.000 description 3
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- 230000000630 rising effect Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000011342 resin composition Substances 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 102100032047 Alsin Human genes 0.000 description 1
- 101710187109 Alsin Proteins 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical group [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910004283 SiO 4 Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
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- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0203—Containers; Encapsulations, e.g. encapsulation of photodiodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/483—Containers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/52—Encapsulations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/52—Encapsulations
- H01L33/54—Encapsulations having a particular shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0033—Processes relating to semiconductor body packages
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0033—Processes relating to semiconductor body packages
- H01L2933/005—Processes relating to semiconductor body packages relating to encapsulations
Definitions
- the present invention relates to an opto-device manufacturing method and manufacturing apparatus.
- Patent Document 1 discloses the production of an optical semiconductor electronic component that facilitates the formation of a lens shape by sealing a light emitting element by a dispensing method or the like using a silicone resin composition that defines viscosity and thixotropic properties. A method is disclosed.
- the formation of the lens part by resin potting using a dispenser does not require a mold, so that a wide variety of lens parts can be manufactured at a low cost. It was difficult to get. For this reason, even if the discharge amount control of the dispenser is accurately performed, there is a case where the variation in the shape of the lens portion after curing is large, and an improvement is required.
- an object of the present invention is to provide an opto device manufacturing method and a manufacturing apparatus capable of quickly and easily obtaining an opto device having desired optical characteristics.
- the object of the present invention is an optical device manufacturing method comprising a sealing step of sealing an optical semiconductor element mounted on a substrate in a lens shape with a liquid resin, and a curing step of curing the liquid resin.
- the object of the present invention is to provide a first sealing step for sealing an optical semiconductor element mounted on a substrate with a first liquid resin, and a first curing for temporarily curing the first liquid resin.
- a step, a second sealing step of sealing the first liquid resin after provisional curing with a second liquid resin into a lens shape, and the main curing of the first liquid resin and the second liquid resin An optical device manufacturing method comprising: a second curing step, wherein the first sealing step includes bringing a nozzle tip of a first dispenser into proximity with the optical semiconductor element, and then moving the nozzle to the base.
- the first liquid resin is supplied while being raised relative to the material, and the second sealing step is performed after the tip of the nozzle of the second dispenser is brought close to the first liquid resin. , While raising the nozzle relative to the substrate It is achieved by the manufacturing method of optical device for supplying the second liquid resin.
- the object of the present invention is an optical device manufacturing apparatus including a sealing device that seals an optical semiconductor element mounted on a base material in a lens shape with a liquid resin, and a curing device that cures the liquid resin.
- the sealing device includes a dispenser capable of moving the nozzle for supplying the liquid resin up and down relatively with respect to the substrate, and after bringing the tip of the nozzle close to the optical semiconductor element, This is achieved by an optical device manufacturing apparatus that supplies the liquid resin while raising the nozzle relative to the substrate.
- the object of the present invention is to provide a first sealing device that seals an optical semiconductor element mounted on a base material with a first liquid resin, and a first curing that temporarily cures the first liquid resin.
- An apparatus a second sealing device that seals the first liquid resin after provisional curing in a lens shape with a second liquid resin; and the main curing of the first liquid resin and the second liquid resin.
- An optical device manufacturing apparatus including a second curing device, wherein the first sealing device is configured to move a nozzle for supplying the first liquid resin relatively up and down relative to the base material. 1 dispenser, and after the tip of the nozzle of the first dispenser is brought close to the optical semiconductor element, the first liquid resin of the first liquid resin is raised while raising the nozzle relative to the substrate.
- the second sealing device is configured to supply the second liquid A second dispenser capable of moving a nozzle for supplying oil relatively up and down relative to the substrate; and after bringing the tip of the nozzle of the second dispenser into proximity with the first liquid resin, This is achieved by an opto-device manufacturing apparatus that supplies the second liquid resin while raising the nozzle relative to the substrate.
- an opto-device having desired optical characteristics can be obtained quickly and easily.
- FIG. 1 is a schematic configuration diagram of an optical device manufacturing apparatus according to a first embodiment of the present invention. It is process sectional drawing which shows an example of the manufacturing method using the opto device manufacturing apparatus shown in FIG. It is process sectional drawing which shows another example of the manufacturing method using the opto device manufacturing apparatus shown in FIG. It is a schematic block diagram of the optical device manufacturing apparatus which concerns on the 2nd Embodiment of this invention. It is process sectional drawing which shows an example of the manufacturing method using the opto device manufacturing apparatus shown in FIG. It is process sectional drawing which shows another example of the manufacturing method using the opto device manufacturing apparatus shown in FIG. It is a figure which shows the shape change of liquid resin after hardening by the difference in the viscosity of liquid resin.
- FIG. 10 It is process sectional drawing which shows another example of the manufacturing method using the opto device manufacturing apparatus shown in FIG. It is a front view which shows an example of the heat curing apparatus used for the opto device manufacturing apparatus shown in FIG.
- FIG. 10 is a sectional view taken along line BB in FIG.
- FIG. 1 is a schematic configuration diagram of an optical device manufacturing apparatus according to the first embodiment of the present invention.
- the optical device manufacturing apparatus 1 includes a loader 10, a sealing device 20, a buffer device 30, a curing device 40, and an unloader 50.
- an opto device manufactured by the opto-device manufacturing apparatus 1 an electronic component including an optical semiconductor element such as a light emitting element such as an LED (light emitting diode) or a semiconductor laser or a light receiving element such as a photodiode can be exemplified.
- the opto device manufactured in the present embodiment is an illumination device including a plurality of LED elements.
- an opto device provided with an LED element in addition to a lighting device, for example, a backlight of a liquid crystal television, a vehicle lamp, a traffic light, and the like can be given.
- the loader 10 includes a storage cassette 12 that stores the flat substrate 2 in multiple stages.
- the loader 10 takes out the substrate 2 from the storage cassette 12 by an operation of an arm (not shown) and conveys it to the sealing device 20. .
- the sealing device 20 is configured such that a dispenser device 21 for supplying a liquid resin is slidably supported by a support block 22 and can move up and down.
- the dispenser device 21 uses a screw-type dispenser in the present embodiment, and by driving a screw (not shown) built in by the operation of the motor 23, the liquid resin stored in the syringe 24 is transferred to the tip of the nozzle 25. Discharge from.
- Below the dispenser device 21 is provided an XY table 26 on which the base material 2 conveyed by the loader 10 is mounted. By moving the base material 2 along a horizontal plane, a plurality of locations on the upper surface of the base material 2 are provided. A liquid resin can be supplied to the.
- the buffer device 30 includes storage cassettes 32 that store the base material 2 in multiple stages.
- the base material 2 to which the liquid resin has been supplied in the sealing device 20 is taken out by the operation of an arm (not shown).
- Store in the storage cassette 32 Store in the storage cassette 32.
- the accommodated base material 2 is taken out again by the operation of an arm (not shown) and conveyed to the curing device 40.
- the curing device 40 includes storage cassettes 42 for storing the base materials 2 in multiple stages, and the base materials 2 conveyed from the buffer device 30 are sequentially stored in the storage cassettes 42.
- the curing device 40 includes a heater (not shown) arranged so that the temperature distribution in the chamber is uniform, and heats each stored base material 2 at a preset temperature.
- the curing device 40 may be configured to heat the substrate 2 under normal pressure, but is preferably a pressure oven capable of increasing the pressure in the chamber to, for example, about 0.5 MPa.
- the unloader 50 includes storage cassettes 52 that store the base material 2 in multiple stages.
- the base material 2 stored in the storage cassette 42 of the curing device 40 is taken out by an arm (not shown) after a predetermined time. Then, it is stored in the storage cassette 52.
- the storage cassette 12 of the loader 10 stores a plurality of base materials 2 on which a large number of light emitting elements are mounted in advance.
- the base materials 2 are sequentially taken out from the storage cassette 12 and conveyed to the sealing device 20.
- the conveyed base material 2 is mounted on the XY table 26, and the nozzle 25 is disposed immediately above the light emitting element 4 to be sealed, as shown in FIG.
- the dispenser device is lowered to a position where the tip of the nozzle 25 is close to the light emitting element 4.
- the distance s between the tip of the nozzle 25 and the upper surface of the light emitting element 4 at a position close to the nozzle 25 may be appropriately set according to the viscosity of the liquid resin to be supplied, the supply amount, and the like. It is preferably within the range, and more preferably within the range of 0.01 to 1.5 mm. In addition, when the dispenser device is a jet type described later, it is preferably about 0.1 to 10 mm.
- the supply of the liquid resin R is started from the tip of the nozzle 25 and the dispenser device is raised, and while the supply of the liquid resin R is being performed, the tip of the nozzle 25 is moved.
- the light emitting element 4 is gradually separated from the light emitting element 4.
- the supply of the liquid resin R is stopped in a state where the light emitting element 4 is sealed in a lens shape with the liquid resin R.
- the supply rate (supply amount per unit time) of the liquid resin R may be constant or may be changed during supply. For example, by stopping the supply after increasing the supply speed of the liquid resin R, the supplied liquid resin R can be formed into a bullet-like shape.
- the upper part of the supplied liquid resin R can be formed sharply.
- changing the supply rate of the liquid resin R during supply is effective in making the liquid resin R for sealing the light emitting element 4 into a desired shape, but is not necessarily limited to this purpose. is not.
- the generation of voids (voids) around the light emitting element 4 can be suppressed by decreasing the supply rate immediately after the start of supply of the liquid resin R and then increasing the supply rate.
- the same as described above may be adopted by changing the rising speed of the nozzle 25 (or the lowering speed of the XY table 26 holding the substrate 2) during the supply of the liquid resin R. There is an effect.
- the supply of the liquid resin R is stopped after the rising speed of the nozzle 25 (or the lowering speed of the XY table 26) is reduced while the liquid resin R is being supplied. You just have to do it.
- the nozzle 25 is further raised until the liquid runs out as shown in FIG. Then, after the tip of the nozzle 25 is completely separated from the lens-shaped liquid resin R, the nozzle is directly above the adjacent unsealed light emitting element 4 as shown in FIG. 25 is arranged. Thereafter, the nozzle 25 is lowered and the above procedure is repeated, whereby all the light emitting elements 4 mounted on the substrate 2 are sequentially sealed with the liquid resin R.
- the liquid resin R used in the sealing device 20 is a resin that is transparent at room temperature and has a light-transmitting property.
- a known sealing resin such as an epoxy resin, a silicone resin, a urethane resin, an acrylic resin, or a polycarbonate resin.
- the liquid resin R it is possible to use a phosphor in which a phosphor that absorbs part of the light from the light emitting element 4 and converts the wavelength to emit light is dispersed substantially uniformly in the sealing resin. is there.
- the combination of the light-emitting element 4 and the phosphor is not particularly limited.
- the emission color can be white.
- the phosphor in addition to the above-mentioned BOS phosphor and YAG (yttrium, aluminum, garnet), yellowish (Y, Gd) 3 (Al, Ga) 5 O 12 : Ce, ⁇ -sialon complex, Li 2 SrSiO 4 complex, amber (Ba, Sr) 3 SiO 5 complex, red (Ca, Sr) 2 Si 5 N 8 complex, (Ca, Sr) AlSiN 3 complex, blue Examples include green-yellowish (Ba, Sr, Ca) Si 2 O 2 N 2 complex, greenish Ca 3 Sc 2 Si 3 O 12 : Ce, CaSc 2 O 4 : Ce, and the like.
- the base material 2 discharged from the sealing device 20 is transported to the buffer device 30 and stored and left in the storage cassette 32, and then transported to the curing device 40. Then, after being stored in the storage cassette 42 of the curing device 40 and heated, it is taken out by the unloader 50 and stored in the storage cassette 52.
- the removal of the base material 2 from the storage cassettes 32 and 42 is performed at a constant speed in the order of storage, and the standing time in the buffer device 30 and the heating time in the curing device 40 become a predetermined time without being different depending on the base material 2.
- the storage cassette 52 stores an optical device in which the light emitting element 4 is sealed in a lens shape by the cured liquid resin R.
- the curing of the liquid resin R by the curing device 40 is preferably performed, for example, under a pressure of about 0.5 Mpa. Even when the liquid resin R contains bubbles, the volume of the bubbles is sufficiently reduced. Thus, variation in the lens shape of the liquid resin R can be suppressed.
- the supply of the liquid resin R in the sealing apparatus 20 causes the nozzle 25 to be moved after the tip of the nozzle 25 is brought close to the light emitting element 4. Since the process is performed while being raised, the supplied liquid resin R comes into contact with the light emitting element 4 at an early stage and spreads uniformly due to the surface tension with the surface of the substrate 2, and the tip of the nozzle 25 is buried in the liquid resin R. There is no fear and the lens shape of the supplied liquid resin R can be maintained well. Accordingly, a highly accurate lens shape having desired optical characteristics can be obtained quickly and easily.
- the rise of the nozzle 25 with respect to the base material 2 may be relative.
- the XY table 26 that holds the base material 2 is a three-axis table that can move up and down, and the liquid resin R from the nozzle 25 is lowered while the base material 2 is lowered. It is also possible to configure so as to supply
- the liquid resin R to be supplied preferably has a high viscosity and a high thixotropic property (high thixotropic property) so as to prevent flattening after supply and maintain a desired lens shape.
- the viscosity (23 ° C.) of the liquid resin R is set in the range of 10 to 300 Pa ⁇ s (preferably 10 to 200 Pa ⁇ s), and the thixotropic property is set in the range of 2.0 to 7.0. Things can be used.
- the thixotropic property was measured by placing the sample in a glass bottle and leaving it in a 23 ° C.
- the viscosity of the liquid resin R has a correlation with the shape of the liquid resin R after curing. When the viscosity is low, the supply of the liquid resin R is easy, while the lens shape of the liquid resin R is flat. On the other hand, in the case of high viscosity, it becomes easy to secure the lens height of the liquid resin R and it is easy to stabilize the shape, and the shape after curing is made close to a desired hemispherical shape (or bullet shape). Can do.
- the viscosity (23 ° C.) is 99.2 Pa ⁇ s, 122.8 Pa ⁇ s, 155.5 Pa ⁇ s, 188.0 Pa ⁇ s. 7 (a) to (d) show the cross-sectional shapes of the liquid resin R (thixotropic property is about 5.0 ⁇ 0.5) made of a silicone resin.
- the viscosity (23 ° C.) containing silica is 10 to 70 Pa ⁇ s and the thixotropic property is 2.0 to 5.
- 5 is preferably a silicone resin composition for sealing a light-emitting element.
- the nozzle 25 is further raised until the liquid runs out even after the supply of the liquid resin R is stopped, the liquid resin R for sealing the light emitting element 4 is sealed next. There is no fear of being deformed due to the movement of the nozzle 25 toward the light emitting element 4 to be stopped, and the lens shape can be reliably maintained.
- the screw of the dispenser device may be reversely rotated when the supply of the liquid resin R is stopped.
- the nozzle 25 is vibrated or circularly moved in the horizontal direction, etc.
- Such horizontal movement of the nozzle 25 may be performed while stopping the rise of the nozzle 25 or may be performed while raising the nozzle 25.
- the method of the dispenser device 21 is not particularly limited, but is preferably a screw type as in the present embodiment so that the liquid resin R can be surely supplied even when the liquid resin R has a high viscosity.
- a dispenser for supplying a high-viscosity liquid resin in addition to the screw type, a jet type in which the liquid resin pumped from the syringe is discharged from the nozzle by lowering the piston, and a volumetric type capable of quantitative discharge are preferably exemplified. Can do.
- the light-emitting element 4 is sealed with the liquid resin R, as shown in FIG. 8A, by supplying the liquid resin while moving the nozzle 25 so as to surround the light-emitting element 4. After forming the portion d in advance, as shown in FIG. 8B, the nozzle 25 is moved to the proximity position of the light emitting element 4, and the supply of the liquid resin R of the same material as the weir portion d is started.
- a similar method may be used. In this case, since the horizontal spread of the liquid resin R that seals the light emitting element 4 is restricted by the dam portion d, the liquid resin R is integrated with the dam portion d as shown in FIG. It is easy to change the later lens shape to a desired shape, which is particularly effective when the lens height is high.
- the surface of the flat base material 2 Is provided with a frame 3 having a recess 3a, and the light-emitting element 4 is sealed using the opto-device manufacturing apparatus 1 of the present embodiment even for the base material 2 in which the light-emitting element 4 is disposed in the recess 3a can do.
- the liquid resin R is supplied while the nozzle 25 is raised to the outside of the recess 3a.
- the liquid resin R can be swelled in a lens shape from the opening of the recess 3a.
- the substrate 2 is not limited to a flat plate, and the present invention can also be applied to, for example, an optical semiconductor element mounted in a recess of a substrate made of a lead frame.
- the liquid resin R can be supplied to the concave portion 3a at a constant supply speed, but the supply speed may be lowered in the initial stage and then the supply speed may be increased. Thereby, it becomes easy to sufficiently spread the liquid resin R to the lower corner of the recess 3a, and the generation of voids (voids) can be suppressed.
- the rising speed of the nozzle 25 or the lowering speed of the XY table 26 holding the base material 2 may be decreased.
- the opto-device manufacturing apparatus 1 can continuously supply the liquid resin R to the substrate 2 and subsequently cure the liquid resin R.
- the curing of the liquid resin R in the curing device 40 does not necessarily have to be complete curing, and the liquid resin R to such an extent that deformation with time does not substantially occur. It may be a temporary curing that cures.
- the heating time in the curing device 40 can be shortened, the number of the storage cassettes 42 can be reduced and the size can be reduced.
- the base material 2 taken out from the curing device 40 can be put into the heating furnace again in a subsequent process, and the liquid resin R can be fully cured.
- the opto-device manufacturing apparatus 1 can also be configured as a batch type.
- the curing device 40 can be configured to be heated under normal pressure or under pressure as described above. However, in order to suppress deterioration in quality due to expansion of bubbles mixed in the liquid resin R, the device for heating under pressure is used. It is preferable that FIG. 9 is a front view showing an example of such a curing apparatus, and FIG. 10 is a cross-sectional view taken along line BB in FIG.
- the curing apparatus 400 shown in FIG. 9 includes a plurality of pressure curing furnaces 410, and is disposed adjacent to each other in the horizontal direction.
- Each pressure curing furnace 410 includes a cylindrical casing 413 supported by a top plate 411 via a buffer member 412 made of a compression spring, and a lower lid provided at the upper end of a lifting rod of a lifting cylinder 414 made of an air cylinder or the like. 415.
- the casing 413 is arranged so that the lower side is opened, and the casing 413 can be sealed by raising the lower lid 415 from a lower position indicated by a broken line in FIG.
- a heating body 417 is supported on the upper surface of the lower lid 415 via a support member 416, and a plurality of pins 418 that can mount the base material 2 on the upper surface of the heating body 417.
- the heating body 420 is suspended and supported on the upper surface of the inner wall of the casing 413 via a support member 419.
- the heating elements 417 and 420 are arranged so as to face each other with a space therebetween in a state where the lower lid 415 seals the casing 413, so that the base material 2 mounted on the pins 418 can be uniformly heated from above and below. it can.
- the heating elements 417 and 420 are made of metal heater blocks containing a plurality of cartridge heaters 417a and 420a, but may be other electric heaters such as ceramic heaters, or in the casing 413.
- the structure which supplies a hot air may be sufficient.
- a pressure pipe (not shown) is connected to the casing 413, and compressed air is supplied from a pressure source to pressurize the inside of the sealed casing 413 with a desired pressure (for example, 0.5 MPa). be able to.
- the internal pressure of the casing 413 can be released to the atmosphere by operating a valve of a pressure release pipe (not shown) connected to the casing 413.
- the internal temperature of the casing 413 can be adjusted by controlling the energization of the heating elements 417 and 420, or the cooling liquid is passed through the cooling pipe 423 spirally wound around the outer peripheral surface of the casing 413. Can be done.
- the curing device 400 includes a transport conveyor 424 that horizontally transports the base material 2 along the adjacent direction of each pressure curing furnace 410, and a guide rail 425 arranged to extend in parallel with the transport conveyor 424 (FIG. 9). Shows only a part).
- the conveyor 424 support portions 424a composed of a plurality of pins are provided at equal intervals on the conveyance surface, and the base material 2 supplied with the liquid resin is removed from the previous step (for example, the buffer device 30 shown in FIG. 1). After being received by the support portion 424a, the base material 2 is conveyed so that it can pass through the vicinity of each pressure curing furnace 410 and be passed to a subsequent process (for example, the unloader 50 shown in FIG. 1).
- a moving body 428 including an extendable rod 427 provided with an air chuck 426 for gripping the base material 2 is slidably supported. As shown in FIG.
- the base material 2 can be transferred between the transport conveyor 424 and the lower lid 415 (broken line) at the lower position.
- the loading and unloading of the base material 2 with respect to each pressure curing furnace 410 can be performed using another transfer device such as a material handling robot instead of using the transport conveyor 424 and the moving body 428 of the present embodiment.
- the base material 2 transported by the transport conveyor 424 is mounted on the pin 418 of each pressure curing furnace 410 by the operation of the moving body 428, and then the lower lid 415 is raised to move the casing 413.
- the liquid resin supplied to the base material 2 can be temporarily cured at a predetermined temperature and pressure for a predetermined time.
- the lower lid 415 is lowered, and the base material 2 is moved again onto the transport conveyor 424 by the operation of the moving body 428 to be transported.
- FIG. 4 is a schematic configuration diagram of an optical device manufacturing apparatus according to the second embodiment of the present invention.
- the opto-device manufacturing apparatus 100 includes a loader 110, a first sealing device 120, a first buffer device 130, a first curing device 140, a second buffer device 150, and a second buffer device.
- a sealing device 160, a third buffer device 170, a second curing device 180, and an unloader 190 are provided.
- the 1st sealing device 120 and the 2nd sealing device 160 are comprised similarly to the sealing device 20 of 1st Embodiment, and are provided with the nozzles 125 and 165 which supply liquid resin, respectively.
- first buffer device 130, the second buffer device 150, and the third buffer device 170 have the same configuration as the buffer device 30 of the first embodiment, and the first curing device 140 and the first buffer device 30 are the same.
- the second curing device 180 has the same configuration as the curing device 40 of the first embodiment.
- the base material 2 stored in the storage cassette 112 of the loader 110 is sequentially conveyed in the direction of arrow A in FIG. 4 by the operation of an arm (not shown) and stored in the storage cassette 192 of the unloader 190.
- the light emitting element 4 is sealed in a lens shape by the first liquid resin by the first sealing device 120 as in the case of the sealing device 20 of the first embodiment. . Then, after passing through the first buffer device 130, the first curing device 140 and the second buffer device 150, the first liquid resin is transported to the second sealing device 160 in a temporarily cured state.
- the conveyed base material 2 is placed on an XY table, and the nozzle 165 is disposed immediately above the light emitting element 4 as shown in FIG. After the positioning of 2 is performed, the dispenser device descends to a position where the tip of the nozzle 165 is close to the first liquid resin R1 that seals the light emitting element 4.
- the distance between the tip of the nozzle 165 and the first liquid resin R1 at a position close to the nozzle 165 is preferably set to be approximately the same as the distance s shown in FIG.
- the dispenser device is raised and the supply of the second liquid resin R2 is performed.
- the tip of the nozzle 165 is gradually separated from the first liquid resin R1.
- the supply of the second liquid resin R2 is stopped in a state where the first liquid resin R1 is sealed in a lens shape by the second liquid resin R2.
- the nozzle 165 is further raised until the liquid runs out as shown in FIG. 5 (d) even after the supply of the second liquid resin R2 is stopped. Then, after the tip of the nozzle 165 is completely separated from the lens-like second liquid resin R2, as shown in FIG. 5 (e), the nozzle 165 is immediately above the adjacent light emitting element 4 by driving the XY table. Moving. Thereafter, the nozzle 165 is lowered and the above procedure is repeated, whereby the first liquid resin R1 of all the light emitting elements 4 mounted on the base material 2 is further sealed with the second liquid resin R2. The After this, the light-emitting device in which the first liquid resin R1 and the second liquid resin R2 are completely cured can be obtained by performing the main curing with the second curing device 180 through the third buffer device 170. .
- the first liquid resin R2 is supplied after the first liquid resin R1 is temporarily cured, so that the first liquid resin due to the weight of the second liquid resin R2 is supplied.
- the deformation of R1 can be suppressed, and mixing of the first liquid resin R1 and the second liquid resin R2 can be prevented. Therefore, the desired lens shape of the second liquid resin R2 can be obtained quickly and easily.
- the combination of the first liquid resin R1 and the second liquid resin R2 is not particularly limited.
- the first liquid resin R1 is a material containing a phosphor
- the second liquid resin R2 By using a material that does not contain a phosphor, a high-luminance light-emitting device can be obtained while suppressing the amount of phosphor used.
- the first liquid resin R1 may be a material that does not contain a phosphor
- the second liquid resin R2 may be a material that contains a phosphor.
- the first liquid resin R1 is sealed in a lens shape with the second liquid resin R2, and the light emitting element 4 is sealed in a lens shape with the first liquid resin R1. Since the shape of the one liquid resin R1 does not directly affect the final lens shape, it may be a certain shape other than the lens shape. For example, a low-viscosity material may be used for the first liquid resin R1, and the first liquid resin R1 covering the light emitting element 4 may be formed into a thin film flat shape.
- the light emitting element 4 mounted in the recess 3a of the base material 2 is sealed with the first liquid resin R1 and the second liquid resin R2. Can do.
- the first sealing device 120 As shown in FIG. 6A, after the tip of the nozzle 125 is set inside the recess 3a, the first liquid resin R1 is supplied while the nozzle 125 is raised.
- the light emitting element 4 is sealed inside the recess 3a by the first liquid resin R1.
- the second sealing device 160 as shown in FIG.
- the second liquid is formed while raising the nozzle 165 to the outside of the recess 3a.
- the second liquid resin R2 can be swelled in a lens shape from the opening of the recess 3a.
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Abstract
Description
以下、本発明の実施の形態について、添付図面を参照して説明する。図1は、本発明の第1の実施形態に係るオプトデバイス製造装置の概略構成図である。図1に示すように、このオプトデバイス製造装置1は、ローダ10、封止装置20、バッファ装置30、硬化装置40およびアンローダ50を備えている。オプトデバイス製造装置1により製造されるオプトデバイスとしては、LED(発光ダイオード)や半導体レーザ等の発光素子あるいはフォトダイオード等の受光素子のような光半導体素子を備える電子部品を例示することができる。本実施形態において製造されるオプトデバイスは、複数のLED素子を備える照明装置である。LED素子を備えるオプトデバイスとしては、照明装置の他に、例えば、液晶テレビのバックライトや車両用ランプ、信号機などを挙げることができる。
図4は、本発明の第2の実施形態に係るオプトデバイス製造装置の概略構成図である。図4に示すように、このオプトデバイス製造装置100は、ローダ110、第1の封止装置120、第1のバッファ装置130、第1の硬化装置140、第2のバッファ装置150、第2の封止装置160、第3のバッファ装置170、第2の硬化装置180およびアンローダ190を備えている。第1の封止装置120および第2の封止装置160は、第1の実施形態の封止装置20と同様に構成されており、液状樹脂を供給するノズル125,165をそれぞれ備えている。また、第1のバッファ装置130、第2のバッファ装置150および第3のバッファ装置170は、第1の実施形態のバッファ装置30と同様の構成を備えており、第1の硬化装置140および第2の硬化装置180は、第1の実施形態の硬化装置40と同様の構成を備えている。ローダ110の収納カセット112に収納された基材2は、アーム(図示せず)の作動によって図4の矢示A方向に順次搬送され、アンローダ190の収納カセット192に収納される。
2 基材
4 発光素子(光半導体素子)
20 封止装置
25,125,165 ノズル
40 硬化装置
120 第1の封止装置
140 第1の硬化装置
160 第2の封止装置
180 第2の硬化装置
Claims (13)
- 基材に実装された光半導体素子を液状樹脂によりレンズ状に封止する封止工程と、前記液状樹脂を硬化させる硬化工程とを備えるオプトデバイスの製造方法であって、
前記封止工程は、ディスペンサのノズルの先端を前記光半導体素子に近接させた後、前記ノズルを前記基材に対して相対的に上昇させながら前記液状樹脂の供給を行うオプトデバイスの製造方法。 - 前記封止工程は、前記液状樹脂の供給を停止した後、前記液状樹脂の液切れが生じるまで前記ノズルを更に上昇させる工程を備える請求項1に記載のオプトデバイスの製造方法。
- 前記光半導体素子は、前記基材が有する凹部内に配置されており、
前記封止工程は、前記ノズルの先端を前記凹部の内部から上昇させる工程を備える請求項1に記載のオプトデバイスの製造方法。 - 前記封止工程は、前記液状樹脂の供給を停止した後、前記基材に供給された前記液状樹脂の直上で液切れが生じるように前記ノズルを水平方向に移動させる工程を備える請求項1に記載のオプトデバイスの製造方法。
- 前記封止工程は、前記光半導体素子を取り囲むように前記ノズルを移動させながら前記液状樹脂を供給することにより、前記基材上に環状の堰部を予め形成する工程を備える請求項1に記載のオプトデバイスの製造方法。
- 前記封止工程は、前記液状樹脂の供給中に供給速度を変化させる工程を備える請求項1に記載のオプトデバイスの製造方法。
- 前記硬化工程は、加圧下で行われる請求項1に記載のオプトデバイスの製造方法。
- 前記液状樹脂は、粘度(23℃)が10~200Pa・sであり、チクソトロピック性が2.0~7.0である請求項1に記載のオプトデバイスの製造方法。
- 前記ディスペンサは、スクリュー式、ジェット式または容積計量式のいずれかである請求項1に記載のオプトデバイスの製造方法。
- 基材に実装された光半導体素子を第1の液状樹脂により封止する第1の封止工程と、前記第1の液状樹脂を仮硬化させる第1の硬化工程と、仮硬化後の前記第1の液状樹脂を第2の液状樹脂によりレンズ状に封止する第2の封止工程と、前記第1の液状樹脂および第2の液状樹脂を本硬化させる第2の硬化工程とを備えるオプトデバイスの製造方法であって、
前記第1の封止工程は、第1のディスペンサのノズルの先端を前記光半導体素子に近接させた後、前記ノズルを前記基材に対して相対的に上昇させながら前記第1の液状樹脂の供給を行い、
前記第2の封止工程は、第2のディスペンサのノズルの先端を前記第1の液状樹脂に近接させた後、前記ノズルを前記基材に対して相対的に上昇させながら前記第2の液状樹脂の供給を行うオプトデバイスの製造方法。 - 前記光半導体素子は、前記基材が有する凹部内に配置されており、
前記第1の封止工程は、前記ノズルの先端を前記凹部の内部から上昇させて、前記光半導体素子を前記凹部の開口よりも下方でレンズ状に封止する工程を備える請求項10に記載のオプトデバイスの製造方法。 - 基材に実装された光半導体素子を液状樹脂によりレンズ状に封止する封止装置と、前記液状樹脂を硬化させる硬化装置とを備えるオプトデバイス製造装置であって、
前記封止装置は、前記液状樹脂を供給するノズルを前記基材に対して相対的に上下動可能なディスペンサを備えており、前記ノズルの先端を前記光半導体素子に近接させた後、前記ノズルを前記基材に対して相対的に上昇させながら前記液状樹脂の供給を行うオプトデバイス製造装置。 - 基材に実装された光半導体素子を第1の液状樹脂により封止する第1の封止装置と、前記第1の液状樹脂を仮硬化させる第1の硬化装置と、仮硬化後の前記第1の液状樹脂を第2の液状樹脂によりレンズ状に封止する第2の封止装置と、前記第1の液状樹脂および第2の液状樹脂を本硬化させる第2の硬化装置とを備えるオプトデバイス製造装置であって、
前記第1の封止装置は、前記第1の液状樹脂を供給するノズルを前記基材に対して相対的に上下動可能な第1のディスペンサを備えており、前記第1のディスペンサのノズルの先端を前記光半導体素子に近接させた後、前記ノズルを前記基材に対して相対的に上昇させながら前記第1の液状樹脂の供給を行い、
前記第2の封止装置は、前記第2の液状樹脂を供給するノズルを前記基材に対して相対的に上下動可能な第2のディスペンサを備えており、前記第2のディスペンサのノズルの先端を前記第1の液状樹脂に近接させた後、前記ノズルを前記基材に対して相対的に上昇させながら前記第2の液状樹脂の供給を行うオプトデバイス製造装置。
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Also Published As
Publication number | Publication date |
---|---|
KR102028594B1 (ko) | 2019-10-04 |
TWI542038B (zh) | 2016-07-11 |
CN103493229A (zh) | 2014-01-01 |
US10050158B2 (en) | 2018-08-14 |
CN103493229B (zh) | 2016-09-07 |
JPWO2012147611A1 (ja) | 2014-07-28 |
KR20140030192A (ko) | 2014-03-11 |
EP2704220A1 (en) | 2014-03-05 |
EP2704220A4 (en) | 2014-10-29 |
JP6150257B2 (ja) | 2017-06-21 |
EP2704220B1 (en) | 2018-03-07 |
US20160260847A1 (en) | 2016-09-08 |
US20140051196A1 (en) | 2014-02-20 |
TW201248935A (en) | 2012-12-01 |
US9373730B2 (en) | 2016-06-21 |
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