WO2017028420A1 - 一种异形有机硅树脂光转换体贴合封装led的装备系统 - Google Patents
一种异形有机硅树脂光转换体贴合封装led的装备系统 Download PDFInfo
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- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier 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
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- H01L24/95—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips
- H01L24/96—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips the devices being encapsulated in a common layer, e.g. neo-wafer or pseudo-wafer, said common layer being separable into individual assemblies after connecting
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- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier 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
- H01L33/50—Wavelength conversion elements
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- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier 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
- H01L33/50—Wavelength conversion elements
- H01L33/505—Wavelength conversion elements characterised by the shape, e.g. plate or foil
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- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier 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
- H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
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- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the subgroups H01L21/06 - H01L21/326, e.g. sealing of a cap to a base of a container
- H01L21/56—Encapsulations, e.g. encapsulation layers, coatings
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- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/15—Structure, shape, material or disposition of the bump connectors after the connecting process
- H01L2224/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
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- H01L2224/93—Batch processes
- H01L2224/95—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips
- H01L2224/951—Supplying the plurality of semiconductor or solid-state bodies
- H01L2224/95115—Supplying the plurality of semiconductor or solid-state bodies using a roll-to-roll transfer technique
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- H01L24/95—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips
- H01L24/97—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips the devices being connected to a common substrate, e.g. interposer, said common substrate being separable into individual assemblies after connecting
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- H01L2933/0033—Processes relating to semiconductor body packages
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- H01L2933/0033—Processes relating to semiconductor body packages
- H01L2933/0041—Processes relating to semiconductor body packages relating to wavelength conversion elements
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- 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 invention belongs to the technical field of LED packaging equipment, and in particular relates to an equipment system for a profiled silicone resin light conversion body to be packaged and packaged LED.
- LED has the advantages of high brightness, low heat, long life, environmental protection, and renewable utilization. It is called the most promising new generation of green lighting source in the 21st century. At present, although the theoretical life of LED can reach more than 100,000 hours, in actual use, it is subject to various factors such as chip failure, package failure, thermal overstress failure, electrical overstress failure or / and assembly failure. The failure of the package is particularly prominent, which causes the LED to appear prematurely with light decay or light failure, which will hinder the advancement of LED as a new energy-saving illumination source. In order to solve these problems, many scholars in the industry have carried out related research and proposed some improvement measures that can improve LED light efficiency and actual service life.
- the newly developed flip-chip LED has the advantages of high luminous efficiency, high reliability and easy integration compared with the traditional formal LED, and the packaging material is greatly simplified, such as the gold wire and solid crystal glue of the traditional formal LED package. Materials such as brackets are no longer needed; the packaging process is also greatly simplified. For example, the solid crystal, wire bonding, and even splitting of the traditional LED packaging process are no longer needed, making flip-chip LEDs more and more widely used;
- most of the existing flip-chip LED packaging technologies use a casting process of a silicone resin-based light conversion body and a flip-chip LED chip, a screen printing process, an upper and lower plate mold process, and a single roll.
- the pendulum pressing process, etc., these processes and their associated packaging equipment can not solve the pores and thickness unevenness of the silicone resin light-converting body, resulting in low yield of the light-converting packaged LED;
- the low production efficiency makes the product cost high.
- Chinese Patent Application No. 201010204860.9 discloses "a method for packaging a flip-chip LED chip", the steps of which include: (a) applying a light conversion body to a surface of an LED chip by screen printing, and baking and curing the light conversion body; (b) fixing the LED chip on the chip substrate to bond the LED chip electrode to the chip substrate electrode; (c) fixing the LED chip and the chip substrate to the bottom of the holder reflector cup; (d) using the wire to fix the wire
- the positive and negative electrodes of the chip substrate are respectively connected to the positive and negative electrodes of the bracket; (e) the mold or lens is placed on the bracket on which the LED chip and the chip substrate are fixed, and is filled with the silicone; (f) the overall structure is baked and cured.
- the method improves the uniformity of the coating thickness of the light conversion body by the screen printing process, and improves the uniformity of the distribution of the phosphor particles, the purpose of improving the yield is achieved; however, the following significant deficiencies exist:
- First, the screen printing The silicone-based light-converting body is coated on the surface of the LED chip, and then is affected by the thermal over-stress during the baking and curing process, and the light-converting body coating layer and the coating surface layer of the LED chip are partially generated to form irregularities.
- the second is to fill the mold or lens cover with silica gel and LED chip package coated with light conversion body.
- the entire LED chip packaging process is not equipped with an intelligent control system for control, which directly affects the improvement of the yield.
- Chinese Patent Application No. 201310270747.4 discloses "LEDs coated with a light conversion body layer, a method of manufacturing the same, and an LED device", the solution comprising: an LED arrangement step of arranging LEDs on one surface in a thickness direction of a support sheet; In the method of covering the LED, a light conversion body layer is provided on one surface in the thickness direction of the support sheet, and the light conversion body layer is composed of an active energy ray-curable resin and a light conversion body which are cured by irradiation with active energy rays.
- Forming the composition Forming the composition; curing step, irradiating the light conversion body layer with the active energy ray to cure the light conversion body layer; and cutting the light conversion body layer corresponding to the LED to obtain the light conversion body including the LED and the coated LED
- the purpose of this method is to provide an LED device in which a light conversion body is uniformly disposed around an LED to prevent damage, thereby obtaining an LED coated with a light conversion body layer, and an LED having the light conversion body layer coated thereon;
- the fluorescent resin composition of the light-converting body may cause the localized bubbles of the surface layer of the light-converting body to form uneven ridges due to the influence of the thermal over-stress;
- the light-converting layer is covered.
- the LED will still be affected by thermal overstress, resulting in a decrease in light efficiency in the use of LEDs.
- the process in the entire packaging process is cumbersome, and the production efficiency of packaged LEDs is not high.
- the upper and lower flat mold process will lead to flipping. The displacement of the chip will inevitably lead to a decrease in yield.
- Ciba 201380027218.X discloses a "resin sheet laminate and a method for producing a semiconductor light-emitting device using the same", wherein the resin sheet laminate is provided with a phosphor-containing resin layer on a substrate.
- the phosphor-containing resin layer has a plurality of blocks, and the substrate has a longitudinal direction and a width direction, and the plurality of blocks are repeatedly arranged in a row in the longitudinal direction.
- the object of the invention is to improve the uniformity of color and brightness of the semiconductor light-emitting device to which the phosphor-containing resin layer is attached, the ease of manufacture, the degree of freedom in design, etc., by the resin sheet laminate.
- the phosphor resin sheet used is a cured phosphor resin sheet, which will not effectively eliminate pores, irregularities or other processing defects which may remain therein; Pressurizing the press tool from the lateral direction of the semiconductor light-emitting device may damage the semiconductor light-emitting element.
- the phosphor resin sheet bonded to the light-emitting surface of the semiconductor light-emitting element The substrate is not peeled off, which directly affects the light effect of the semiconductor light-emitting element.
- the phosphor resin layer is repeatedly arranged in the longitudinal direction in a plurality of blocks. In a manner of presenting, however, a plurality of block configurations of the phosphor resin layer are realized, and the actual operation procedure is cumbersome, which will affect the packaging efficiency of the entire component, and the arrangement error of the plurality of block regions in the position directly affects the subsequent connection between the light-emitting elements.
- the accuracy of the fit, and if the size and thickness of multiple blocks are not full Consistent requirements can lead to serious product consistency issues.
- the object of the present invention is to provide an equipment system for a profiled silicone resin light-converting body to package and package LEDs, which overcomes the deficiencies of the prior art.
- the invention has the remarkable advantages of being suitable for continuous-rolling process to package LEDs, and can meet the requirements.
- the need for a silicone resin photoconductor to roll-fit a packaged LED process improves the production efficiency and yield of an industrialized batch LED package.
- the invention is a divisional technical solution of a process method for a profiled silicone resin light conversion body to be packaged and packaged LED proposed by the applicant.
- An equipment system for a packaged LED with a shaped silicone resin light conversion body is characterized in that it comprises a rolling press device for purifying a light conversion film, and heating the fine light conversion film
- a pressure-setting and rolling device, a film-molding device for melting a film after rolling and shaping, and a purified light-converting film after melt film are opposed to an LED flip-chip array with a carrier film a rolling press-fitting device;
- the rolling press device, the roll forming device, the film melting device, and the rolling bonding device are sequentially disposed, and constitute a cooperative operation device;
- the rolling The press-fitting device comprises one or more sets of oppositely rolled rolling smoothing elements A and smoothing rolling elements B; said rolling forming means comprising a first rolling with a bump array oriented in opposite directions And a second rolling device having an array of grooves;
- the rolling bonding device comprising a smoothing third rolling device that is aligned in opposite directions and a fourth rolling device with an array of grooves.
- the implementation principle of the present invention is: In order to better solve the problems existing in the existing LED packaging process, the present invention skillfully designs an equipment system for the profiled silicone resin light conversion body to roll and package the LED.
- the principle of the roll-fitting packaging of the present invention is as follows: First, the roller is rolled to cause irregularities in the semi-cured light conversion film, and the pores, irregularities or other processing which may remain in the light conversion film are eliminated. ⁇ , etc., to obtain a refined light conversion film without pores, flatness and uniform thickness; second, the rolled semi-cured silicone resin light conversion film can be deformed during processing to form an optimized light conversion body required
- the shape of the light-emitting surface layer such as an arc shape, a semi-spherical shape, a rectangle, and the like; the third is to use the light-melting film technology to subtly cover the outer protective film B of the meltable silicone photosensitive resin containing the light conversion material and the semi-cured light.
- the conversion film is fused and integrated to facilitate close fitting with the LED flip chip; the fourth is that the invention is a flow type continuous process equipment system, which is favorable for satisfying the processing conditions of the mass production LED package components and ensuring the same size. It not only improves the production efficiency of the LED package components, but also improves the light color consistency of the finished LED package components, so that the superior product rate is greatly improved.
- the equipment system proposed by the invention has a new standard process for continuously rolling and packaging LEDs of silicone resin light conversion body, which overcomes the existing casting process, screen printing process, upper and lower plate molding process and single roll
- the light-emitting efficiency, production efficiency and excellent product rate of the packaged LED existing in the old-style process such as the pendulum process are obviously insufficient; the invention can meet the needs of the semi-cured silicone resin light-converting body to package the packaged LED, thereby improving industrialization Production efficiency and yield of bulk LED packages.
- the present invention proposes a new process for forming a profiled light conversion film, which can produce various shape-shaped light-emitting surface layers such as an arc shape, a semi-spherical shape and a rectangular shape, and can effectively eliminate the pores remaining in the light conversion film. , unevenness and other processing defects, etc., thereby significantly improving the color consistency of the finished LED package components, and the profiled light-emitting surface layer can effectively improve the light-emitting efficiency and light uniformity of the finished LED package component.
- the third is that the new melt film process proposed by the present invention not only overcomes the shortcomings of the existing stripping process scheme for the protective film layer, but also realizes the continuous flow process of the silicone resin light conversion film roll-bonding LED, and It is also suitable for the equipment system supporting the continuous process and implementing intelligent control to better meet the production requirements of industrial batch packaging LEDs, thereby significantly improving the production efficiency of industrial batch packaging LEDs.
- the process method proposed by the invention is widely applicable to the bonding and packaging process of the silicone resin light conversion body and various power size LEDs, and fully meets the requirement of implementing fine processing of the product production process in the industrial batch packaging LED process.
- FIG. 1 is a schematic block diagram showing a process of a profiled silicone resin light-converting body to which a packaged LED is applied by applying the equipment system of the present invention.
- FIG. 2 is a schematic view showing the flow layout structure of an equipment system for a profiled silicone resin light-converting body packaged and packaged LED according to the present invention.
- 3A is a schematic structural view of an embodiment of a rolling and pressing device in an equipment system for a profiled silicone resin light-converting body packaged and packaged LED according to the present invention.
- FIG. 3B is a schematic structural view of another embodiment of a rolling and pressing device in an equipment system for a profiled silicone resin light-converter-fit LED package according to the present invention.
- FIG. 3C is a schematic structural view of another embodiment of a rolling and pressing device in an equipment system for a profiled silicone resin light-converter-fit LED package according to the present invention.
- FIG. 4A is a schematic structural view of an embodiment of a roll forming device in an equipment system for a profiled silicone resin light-converter-fit LED package according to the present invention.
- 4B is a roll forming device in an equipment system for a profiled silicone resin light conversion body to be packaged and packaged LED according to the present invention; A schematic structural view of another embodiment.
- FIG. 5 is a schematic view showing the steps of a film melting device in an equipment system for a packaged LED with a shaped silicone resin light conversion body according to the present invention.
- FIG. 6 is a schematic structural view of an embodiment of a rolling bonding apparatus in an equipment system for a profiled silicone resin light-converting body packaged and packaged LED according to the present invention.
- FIG. 7A is a schematic plan view showing the structure of a finished LED package component produced by the present invention.
- FIG. 7B is a schematic plan view showing the planar structure of a finished single LED package component obtained by stretching according to the present invention.
- 8A is a curved LED package component produced by the present invention, wherein 8A-1 is a left view, 8A-2 is a right view, 8A-3 is a bottom view, and 8A-4 is a perspective view.
- 8B is a semi-circular LED package component produced by the present invention, wherein 8B-1 is a left view, 8B-2 is a right view, 8B-3 is a bottom view, and 8B-4 is a perspective view.
- 8C is a rectangular LED package component produced by the present invention, wherein 8C-1 is a left view, 8C-2 is a right view, 8C-3 is a bottom view, and 8C-4 is a perspective view.
- a grooved monolithic light conversion diaphragm made by a 8-7 roll forming device made by a 8-7 roll forming device.
- an apparatus system for packaging a packaged LED of a shaped silicone resin light conversion body comprises a rolling press device for refining a light conversion film and a polishing light conversion film.
- the array is aligned with the rolling and laminating rolling bonding device;
- the rolling and pressing device, the rolling and shaping device, the film melting device, and the rolling and laminating device are sequentially disposed, and constitute a process equipment that cooperates with each other;
- the rolling and pressing device comprises one or more sets of oppositely rolling rolling surface rolling elements A and smooth surface rolling elements B;
- the rolling forming means comprises a bump array with opposite alignment rolling a rolling device and a second rolling device with an array of grooves;
- the rolling bonding device comprising a smooth third surface rolling device and a fourth rolling device with a groove
- the device, device or component of each step involved in the equipment system for packaging the packaged LED of the shaped silicone resin light conversion body proposed by the present invention can be selected in the field of existing precision machinery manufacturing with reference to the requirements of the specific embodiments of the present invention. Use.
- the smooth rolling element A in the rolling and pressing device is a smooth single roller A or a smooth surface conveying device A
- the smooth rolling member B is a smooth single roller B or a smooth surface conveying device B.
- At least one of the smooth roll member A and the smooth roll member B is a single roll.
- Fig. 3A shows that the rolling and pressing device comprises a smooth single-roller A1 (1-1) and a smooth single-roller B1 (1-2) which are aligned in opposite directions.
- FIG. 3B shows that the rolling press device includes a smooth single-roller A1 (1-1) and a smooth single-roller B1 (1-2) which are oppositely aligned and rolled;
- FIG. 3A shows that the rolling and pressing device comprises a smooth single-roller A1 (1-1) and a smooth single-roller B1 (1-2) which are aligned in opposite directions.
- FIG. 3B shows that the rolling press device includes a smooth single-roller A1 (1-1) and a smooth single-roller B
- the rolling and pressing device includes Two sets of smooth rolling elements A and two sets of smooth rolling elements B, specifically including smooth-aligned rolling single-roller A1 (1-1) and smooth single-roller B1 (1-2) and opposite alignment Rolled smooth single roller A2 (1-3) and smooth single roller B2 (1-4); outer protective film A (8-3), semi-cured light conversion film (8-1) or half
- the cured light conversion paste (8-2) and the outer protective film B (8-4) are rolled by one or more sets of smooth rolling press devices to obtain a purified light conversion film (8-6). .
- a first rolling device with a bump array in the roll forming device is a first single roller with a bump array or a first planar conveyor with a bump array;
- the second rolling device of the array is a second single roller with a grooved array or a second planar conveyor with a grooved array;
- the first rolling device with a bump array and a grooved array At least one of the second rolling devices is a single roller. 4A and 4B, wherein: FIG. 4A shows that the roll forming device includes a first single roll (2-1) with a bump array aligned in opposite directions and a second single roll with a groove array. (2-2); FIG.
- the roll forming device includes a first single roll (2-1) with a bump array aligned in opposite directions and a second flat transfer device (2-3) with a groove array
- the purified light conversion film (8-6) with the outer protective film A (8-3) and the outer protective film B (8-4) is heated and rolled by a roll forming device to obtain A light conversion diaphragm array composed of a grooved monolithic light conversion diaphragm (8-7).
- the film melting device is a light radiating device comprising at least a radiation source and a planar transfer device.
- Figure 5 shows an array of light-converting diaphragms consisting of a grooved monolithic light-converting diaphragm (8-7) before the film is melted through the film-melting device 3, the array of light-converting membranes.
- the outer protective film B (8-4) is irradiated with light radiation, and is integrated with the semi-cured light conversion film to obtain light composed of a single-piece light-converting film (8-8) having a groove after the film is melted. Convert the diaphragm array.
- the third rolling device of the smooth surface in the rolling bonding device is a third single roller with a smooth surface or a third planar conveying device with a smooth surface, the grooved array
- the fourth rolling device is a fourth single roller with a groove array or a fourth planar conveying device with a groove array; at least one of the device for placing the array of light conversion diaphragms and the device for placing the LED flip chip array film One is a single roller.
- the rolling bonding apparatus includes a third single roller (4-1) that is oppositely aligned with the rolled surface and a fourth single roller (4-2) with an array of grooves;
- the light conversion diaphragm array composed of the monolithic light conversion diaphragms (8-8) behind the film and the LED flip chip array film pass through the smooth third third roller (4-1) and the groove array
- the fourth single roller (4-2) performs the opposite alignment rolling
- the LED package components (8-9) are obtained.
- the rolling and pressing device is provided with a displacement adjusting device for adjusting the distance between the smooth rolling member A and the smooth rolling member B; the rolling and pressing device is provided for adjusting the distance between the first rolling device and the second rolling device.
- the displacement adjusting device is provided with a displacement adjusting device for adjusting the distance between the third rolling device and the fourth rolling device.
- the smooth rolling element A and the smooth rolling element B of the rolling and pressing device have a single radial roller, and the radial runout distance of the roller is ⁇ 2 ⁇ m;
- the first embodiment of the rolling forming device has a bump array a rolling device and a second rolling device with an array of grooves, wherein the roller has a radial runout distance of ⁇ 2 ⁇ m;
- the smoothing device of the rolling bonding device has a third rolling device and belt
- the fourth rolling device having the groove array in the case of a single roller, the radial runout distance of the roller is ⁇ 2 ⁇ m.
- the groove shape is curved, semi-spherical or rectangular.
- the bump of the bump array in the first rolling device with the bump array in the roll forming device has a rectangular shape, and the length, width and height of the LED flip chip are long, wide and high in size. 1.01 to 1.05 times.
- the equipment system further includes a curing device for curing the LED package component, the curing device being a process equipment disposed at a rear end of the rolling bonding device.
- the curing device is a tunnel temperature control device or a tunnel illumination device;
- the tunnel temperature control device includes a heating component, a temperature control component, and a conveyor channel;
- the tunnel illumination device includes an illumination component, a light intensity adjustment component, and Conveyor channel.
- the equipment system further includes a cutting device that cuts the cured LED package component, the cutting device being a process equipment disposed at a rear end of the curing device.
- the cutting device is a rolling and cutting device comprising a roller member C and a smoothing roller member D with an array of blades arranged in opposite directions.
- the rolling element C with the array cutting edge in the rolling cutting device is a single roller C with an array cutting edge or a flat conveying device C with an array cutting edge;
- the smooth rolling member D is a smooth single roller a flat D or a flat surface transfer device D; at least one of the roller C with the array edge and the smooth roller D is a single roller;
- the array edge is a knife edge having an array of rectangular lattices;
- the size of the rectangular grid is the same as the size of a single LED package component.
- the rolling cutting device is provided with an adjusted displacement adjusting device with an array of cutting edges and a smoothing member D spacing; the rolling member C and the smooth rolling member D with the array cutting edges are single rollers
- the radial runout distance of the roller is ⁇ 2 ⁇ m.
- the equipment system further includes an LED flip chip array forming device for forming an LED flip chip array, the LED flip chip array forming device is a process equipment disposed at a front end of the rolling bonding device;
- the chip array forming device includes a robot that grabs and places the LED flip chip and a planar transfer member that has a precise positioning displacement function.
- the rolling press device, the roll forming device, the film melting device, the chip array forming device, the rolling bonding device, the curing device, and the cutting device of the equipment system are sequentially coordinated to form a continuous process equipment of a flow type.
- the present invention produces a finished LED package component, and the stretchable carrier film can be stretched and expanded by a stretching machine, so that the finished LED package component is further stretched and then divided along the slit.
- a finished single LED package component is produced; see Figures 7A, 7B.
- the finished single LED package component produced by the present invention can be a curved LED package component, an LED package component, and a rectangular LED package component; see Figures 8A, 8B, and 8C.
- the equipment system of the special-shaped silicone resin light-converting body packaged and packaged LED proposed by the invention is a flow-type continuous process equipment, and each process equipment is coordinated and coordinated, and is suitable for the continuous production process of the profiled silicone resin light conversion body and the packaged LED. It is beneficial to improve the mass production efficiency and excellent product rate of the shaped silicone resin light conversion body-fitted LED.
- Example 2 A method for coating a packaged LED with a profiled silicone resin light conversion body using the equipment system of the present invention, which comprises molding a refined light conversion film, rolling shaping of a light conversion film array, and melting of a light conversion film array
- the preparation process of the LED flip chip array film, the roll bonding type of the LED package component, the solidification molding of the LED package component, and the flow continuous process of the cutting process of the LED package component include the following steps:
- Step 1 Roll forming of the purified light conversion film: rolling the outer protective film A, the semi-cured light converting material and the outer protective film B through one or more sets of smooth surfaces under vacuum heating
- the pressing device performs rolling to obtain a purified light conversion film composed of an outer protective film A, a semi-cured light conversion film and an outer protective film B;
- the semi-cured light conversion material is a semi-cured light conversion film Or a semi-cured light conversion paste;
- the outer protective film B is made of a meltable silicone photosensitive resin containing a light conversion material; see FIGS. 3A-3C;
- Step 2 Roll setting of the light conversion diaphragm array: passing the purified light conversion diaphragm with the outer protective film through the oppositely aligned first rolling device with the bump array under vacuum conditions Performing thermal roll forming with a second rolling device having an array of grooves to obtain an array of light-converting diaphragms composed of a grooved monolithic light-converting diaphragm; the recess is located adjacent to the outer protective film One side of B; see Figures 4A-4B;
- Step 3 Melting the film of the light conversion film array: under vacuum light, the outer protective film B of the light conversion film array of step 2 is melted to obtain a light conversion film array after melting; Figure 5;
- Step 4 Preparation of an LED flip chip array: obtaining an LED flip chip array film, wherein the LED flip chip in the LED flip chip array film is arranged in an array on the carrier film;
- the LED flip chip refers to a single LED flip a chip or LED flip chip assembly; wherein the LED flip chip assembly is formed by combining two or more single LED flip chips;
- Step 5 Rolling and bonding of the LED package components: the vacuum conversion film array after the film is melted in step 3 and the LED flip chip array film of step 4 are passed through the glossy surface under vacuum heating conditions.
- the third rolling device and the fourth rolling device with the groove array are oppositely aligned and rolled, so that the LED flip-chip bonding in the LED flip chip array film is embedded in the film after the light conversion In the recess of the monolithic light conversion diaphragm of the diaphragm array, the LED package component is obtained; the groove shape and the groove size of the groove array of the fourth rolling device and the groove array of the second rolling device
- the groove shape and the groove size are the same; see Figure 6;
- Step 6 the curing of the LED package component: using the heating or / and photo-curing method, the LED package component of step 5 is cured by a curing device, thereby obtaining a cured LED package component;
- Step 7 Cutting the LED package component: peeling off the outer protective film A of the cured LED package component in step 6, and cutting the cured LED package component to form a component having a single LED package. Slotted finished LED package components.
- the outer protective film A, the semi-cured light converting material and the outer protective film B are passed through one or more sets of smooth rolling press devices.
- Rolling means that the rolling is performed by one or more sets of oppositely aligned smooth double-roller rolling devices or/and a smoothing single-roller and a smooth surface conveying device.
- Light conversion film see Figs. 3A, 3B and 3C, wherein: Fig. 3A shows the outer protective film A (8-3), the semi-cured light conversion film (8-1), and the outer protective film in the step 1.
- the sheet B (8-4) is rolled by a set of smooth rolling presses to obtain a purified light conversion film (8-6); and FIG.
- FIG. 3B shows the outer protective film A (8-3) in the step 1. ), the semi-cured light conversion paste (8-2) and the outer protective film B (8-4) are rolled by a set of smooth rolling press devices to obtain a purified light conversion film (8-6).
- FIG. 3C shows that the outer protective film A (8-3), the semi-cured light converting paste (8-2), and the outer protective film B (8-4) in step 1 pass through two sets of smooth surfaces. Pressing and pressing device for rolling to obtain refined light Exchange membrane (8-6).
- the temperature of the roll forming of the purified light conversion film is 50-120 ° C; the thickness of the purified light conversion film is 200 ⁇ m; the material of the semi-cured light conversion film is semi-cured silicone a resin phosphor film or a semi-cured silicone resin quantum dot phosphor film; the outer protective film A is made of polyester, polyolefin or polyether; and the light conversion material in the outer protective film B is The material and content of the light conversion material in the semi-cured light conversion film of the first step are the same; the material of the outer protective film B further includes an adhesive.
- the first rolling device with the bump array in step 2 is a first single roller with a bump array or a first with a bump array a planar transfer device;
- the second rolling device with the groove array is a second single roller with a groove array or a second planar transfer device with a groove array;
- the first rolling device and the first At least one of the two rolling devices is a single roller; see FIGS. 4A and 4B, wherein: FIG. 4A shows the outer protective film A (8-3) and the outer protective film B in step 2.
- the refined light conversion diaphragm (8-6) of (8-4) passes through the first single roller (2-1) with the aligned bump array and the second single roller with the groove array (2- 2) performing thermal roll forming to obtain an array of light-converting diaphragms composed of a grooved monolithic light-converting diaphragm (8-7); and FIG.
- FIG. 4B shows an outer protective diaphragm A in step 2 ( 8-3) and the purified light conversion film (8-6) of the outer protective film B (8-4) passes through the first single roller (2-1) and the concave with the bump array aligned in opposite directions
- the second planar transfer device (2-3) of the array of grooves is heated and rolled to obtain an array of light-converting diaphragms composed of grooved monolithic light conversion diaphragms (8-7).
- Step 2 The shape of the grooved single-plate light conversion film is curved, semi-spherical or rectangular; in the grooved single-block light conversion film, the length, width and height of the groove are LED flip chip length, width, high size 1.01 ⁇ 1.05 times; the best groove length, width, height size is 1.02 times the length, width and height of the LED flip chip; the light conversion diaphragm array
- the rolling setting temperature is 50 to 120 ° C; the optimum rolling setting temperature is 80 to 100 ° C.
- the melt film in the step 3 refers to the fusion of the outer protective film B and the semi-cured light conversion film described in the first step by means of optical radiation.
- FIG. 5 shows that the light conversion diaphragm array composed of the grooved single-piece light conversion diaphragms (8-7) in the step 3 is passed through the film melting device 3, the light conversion diaphragm.
- the outer protective film B (8-4) of the array is irradiated with light radiation, and is integrated with the semi-cured light conversion film to obtain a single light conversion film (8-8) which is grooved after the film is formed.
- An array of light conversion diaphragms is provided.
- the carrier film of the LED flip chip array film of step 4 is a stretchable carrier film, and the material of the stretchable carrier film is high temperature resistant polyester, polydimethylsiloxane, polyvinyl chloride. One kind.
- Step 5 the film-transferring film array of step 3 and the LED flip-chip array film of step 4 are passed through a smooth third rolling device and a fourth rolling device with a groove array.
- the device performs the opposite alignment rolling bonding, which means that the array of the light conversion diaphragms is disposed on the fourth single roller or the fourth planar conveying device with the groove array, and the LED is inverted.
- the chip array film is arranged on the third single roller with the smooth surface of the roller surface or the third planar conveying device with the smooth surface to perform rolling bonding, so that the LED flip chip in the LED flip chip array Laying into a recess of a monolithic light conversion diaphragm embedded in the array of the film-transferred light conversion film, thereby obtaining an LED package component;
- the smooth third rolling device is a third single roller having a smooth surface or a third planar conveying device having a smooth surface
- the fourth rolling device with the groove array is a grooved array
- a fourth single roller or a fourth planar conveyor with a grooved array; at least one of the means for placing the array of light converting diaphragms and the means for placing the LED flip chip array diaphragm is a single roller.
- FIG. 6 shows the light conversion film array composed of the monolithic light conversion film (8-8) after the film is melted in step 5, and the LED flip chip array film passes through the smooth surface.
- the three single roller (4-1) is aligned with the fourth single roller (4-2) with the groove array.
- the temperature of the roll-on-roll type of the LED package component is 50 to 120 ° C; and the temperature of the optimum roll-press type is 80 to 100 ° C.
- the photocuring method of step 6 is active energy ray curing; the curing method has a curing temperature of 140-180 ° C, a curing time of ⁇ 1 h, an optimum curing temperature of 150-160 ° C, and a curing time of 2 h.
- the step of cutting the cured LED package component in step 7 means that the cured LED package component is subjected to the opposite alignment rolling and cutting by the roller member C and the smooth roller member D with the array edge, and is obtained by dividing into a single sheet.
- a finished LED package component slit by an LED package component the slit has a slit width of less than 20 ⁇ m;
- the roller C with the array edge is a single roller C with an array edge and an array edge a flat conveying device C;
- the smooth rolling member D is a smooth single roller D or a smooth surface conveying device D; at least one of the roller C with the array cutting edge and the smooth rolling member D It is a single roller;
- the array knife edge is a knife edge having an array of rectangular lattices.
- the finished LED package component described in step 7 may be stretched and stretched by the stretcher to stretch the carrier film, so that the finished LED package component is divided along the slit after stretching.
- a finished single LED package component is produced; see Figures 7A, 7B.
- the invention has been verified by trial and error and has achieved satisfactory trial results.
Abstract
Description
Claims (17)
- 一种异形有机硅树脂光转换体贴合封装LED的装备系统,其特征在于,它包括用于精制光转换膜片的滚压压合装置、对精制光转换膜片进行加热滚压定形的滚压定形装置、对滚压定形后的精制光转换膜片进行融膜的融膜装置、将融膜后的精制光转换膜片与带有载体膜的LED倒装芯片阵列相向对准滚压贴合的滚压贴合装置;所述滚压压合装置、滚压定形装置、融膜装置、滚压贴合装置依次设置,且构成协同联动的工序装备;其中所述滚压压合装置包括一组或多组相向对准滚压的光面滚件A与光面滚件B;所述滚压定形装置包括相向对准滚压的带有凸块阵列的第一滚压装置与带有凹槽阵列的第二滚压装置;所述滚压贴合装置包括相向对准滚压的光面的第三滚压装置与带有凹槽阵列的第四滚压装置。
- 根据权利要求1所述的一种异形有机硅树脂光转换体贴合封装LED的装备系统,其特征在于,所述滚压压合装置中的光面滚件A为光面单辊轮A或光面平面传送装置A,所述光面滚件B为光面单辊轮B或光面平面传送装置B;所述光面滚件A与光面辊件B中至少一个为单辊轮。
- 根据权利要求2所述的一种异形有机硅树脂光转换体贴合封装LED的装备系统,其特征在于,所述滚压定形装置中的带有凸块阵列的第一滚压装置为带有凸块阵列的第一单辊轮或带有凸块阵列的第一平面传送装置;所述带有凹槽阵列的第二滚压装置为带凹槽阵列的第二单辊轮或带凹槽阵列的第二平面传送装置;所述带有凸块阵列的第一滚压装置与带有凹槽阵列的第二滚压装置中至少一个为单辊轮。
- 根据权利要求3所述的一种异形有机硅树脂光转换体贴合封装LED的装备系统,其特征在于,所述融膜装置为至少包括辐射光源和平面传送装置的光辐射装置。
- 根据权利要求4所述的一种异形有机硅树脂光转换体贴合封装LED的装备系统,其特征在于,所述滚压贴合装置中所述光面的第三滚压装置为辊面为光面的第三单辊轮或者平面为光面的第三平面传送装置,所述带有凹槽阵列的第四滚压装置为带凹槽阵列的第四单辊轮或者带凹槽阵列的第四平面传送装置;放置光转换膜片阵列的装置和放置LED倒装芯片阵列膜片的装置中至少有一个为单辊轮。
- 根据权利要求5所述的一种异形有机硅树脂光转换体贴合封装LED的装备系统,其特征在于,所述滚压压合装置设有调节光面滚件A与光面滚件B之间间距的位移调节装置;滚压定形装置设有调节第一滚压装置与第二滚压装置之间间距的位移调节装置;滚压贴合装置设有调节第三滚压装置与第四滚压装置之间间距的位移调节装置。
- 根据权利要求6所述的一种异形有机硅树脂光转换体贴合封装LED的装备系统,其特征在于,所述滚压压合装置的光面滚件A与光面滚件B中凡为单辊轮的,其辊径向跳动距离≤2μm;所 述滚压定形装置的带有凸块阵列的第一滚压装置与带有凹槽阵列的第二滚压装置中凡为单辊轮的,其辊径向跳动距离≤2μm;所述滚压贴合装置的光面第三滚压装置与带有凹槽阵列的第四滚压装置中凡为单辊轮的,其辊径向跳动距离≤2μm。
- 根据权利要求7所述的一种异形有机硅树脂光转换体贴合封装LED的装备系统,其特征在于,所述滚压定形装置中带有凹槽阵列的第二滚压装置与滚压贴合装置中带有凹槽阵列的第四滚压装置,其凹槽阵列上的凹槽形状相同,所述凹槽形状为弧形、半圆球形或矩形。
- 根据权利要求8所述的一种带异形发光面层的有机硅树脂光转换体贴合封装LED的装备系统,其特征在于,所述滚压定形装置中带有凸块阵列的第一滚压装置中凸块阵列的凸块的形状为矩形,且其长、宽、高尺寸为LED倒装芯片长、宽、高尺寸的1.01~1.05倍。
- 根据权利要求9所述的一种异形有机硅树脂光转换体贴合封装LED的装备系统,其特征在于,所述装备系统还包括用于LED封装体元件固化成型的固化装置,该固化装置为设置于所述滚压贴合装置后端的工序装备。
- 根据权利要求10所述的一种异形有机硅树脂光转换体贴合封装LED的装备系统,其特征在于,所述固化装置为隧道式控温装置或隧道式光照装置;所述隧道式控温装置包括加温部件、温度调控部件和传送带通道;所述隧道式光照装置包括光照部件、光照强度调控部件和传送带通道。
- 根据权利要求10-11所述一种异形有机硅树脂光转换体贴合封装LED的装备系统,其特征在于,所述装备系统还包括对固化LED封装体元件进行裁切的裁切装置,该裁切装置为设置于所述固化装置后端的工序装备。
- 根据权利要求12所述的一种异形有机硅树脂光转换体贴合封装LED的装备系统,其特征在于,所述裁切装置为滚压裁切装置,该滚压裁切装置包括相向对准设置的带有阵列刀口的滚件C和光面滚件D。
- 根据权利要求13所述的一种异形有机硅树脂光转换体贴合封装LED的装备系统,其特征在于,所述滚压裁切装置中带有阵列刀口的滚件C为带有阵列刀口的单辊轮C或带有阵列刀口的平面传送装置C;所述光面滚件D为光面的单辊轮D或光面的平面传送装置D;所述带有阵列刀口的滚件C与所述光面滚件D中至少一个为单辊轮;所述阵列刀口为具有阵列矩形格子的刀口。
- 根据权利要求14所述的一种异形有机硅树脂光转换体贴合封装LED的装备系统,其特征在于,所述滚压裁切装置设有调节的带有阵列刀口的滚件C和光面滚件D间距的位移调节装置;所述带有阵列刀口的滚件C和光面滚件D中凡为单辊轮的,其辊径向跳动距离≤2μm。
- 根据权利要求15所述的一种异形有机硅树脂光转换体贴合封装LED的装备系统,其特征 在于,所述装备系统还包括用于将LED倒装芯片阵列成型的LED倒装芯片阵列成型装置,所述LED倒装芯片阵列成型装置为设置于所述滚压贴合装置前端的工序装备;LED倒装芯片阵列成型装置包括抓取和放置LED倒装芯片的机械手和具有精确定位位移功能的平面传送部件。
- 根据权利要求16所述的一种基于滚压式的热塑性树脂光转换体贴合封装LED的装备系统,其特征在于,所述装备系统的滚压压合装置、滚压定形装置、融膜装置、LED倒装芯片阵列成型装置、滚压贴合装置、固化装置、裁切装置依次协同联动,构成流程式的连续工序装备。
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US15/749,859 US10103294B2 (en) | 2015-08-18 | 2015-12-16 | Equipment system using deformable organic silicone resin photoconverter to bond-package LED |
JP2017567794A JP6630372B2 (ja) | 2015-08-18 | 2015-12-16 | 不定形有機シリコン樹脂光変換体でledを貼り合せてパッケージする設備システム |
EP15901622.9A EP3321980B1 (en) | 2015-08-18 | 2015-12-16 | Equipment system using deformable organic silicone resin photoconverter to bond-package an led |
PL15901622T PL3321980T3 (pl) | 2015-08-18 | 2015-12-16 | System urządzeń wykorzystujący odkształcalny fotokonwerter z organicznej żywicy silikonowej do pakowania wiązanego LED |
KR1020187002435A KR101989043B1 (ko) | 2015-08-18 | 2015-12-16 | 이형 유기 실리콘 수지 광변환체로 led를 본딩 패키징하는 장비 시스템 |
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EP3321980A4 (en) | 2018-05-16 |
JP6630372B2 (ja) | 2020-01-15 |
JP2018530901A (ja) | 2018-10-18 |
EP3321980B1 (en) | 2019-07-31 |
KR20180022861A (ko) | 2018-03-06 |
PL3321980T3 (pl) | 2020-03-31 |
EP3321980A1 (en) | 2018-05-16 |
CN106469768B (zh) | 2018-02-02 |
US20180233636A1 (en) | 2018-08-16 |
KR101989043B1 (ko) | 2019-06-13 |
CN106469768A (zh) | 2017-03-01 |
US10103294B2 (en) | 2018-10-16 |
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