WO2006100917A1 - Light emitting element reflector, manufacturing method thereof, and light emitting device using the reflector - Google Patents
Light emitting element reflector, manufacturing method thereof, and light emitting device using the reflector Download PDFInfo
- Publication number
- WO2006100917A1 WO2006100917A1 PCT/JP2006/304477 JP2006304477W WO2006100917A1 WO 2006100917 A1 WO2006100917 A1 WO 2006100917A1 JP 2006304477 W JP2006304477 W JP 2006304477W WO 2006100917 A1 WO2006100917 A1 WO 2006100917A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reflector
- substrate
- brazing material
- wall
- light emitting
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000000463 material Substances 0.000 claims abstract description 111
- 239000000758 substrate Substances 0.000 claims abstract description 55
- 238000005219 brazing Methods 0.000 claims description 76
- 229910052709 silver Inorganic materials 0.000 claims description 9
- 239000004332 silver Substances 0.000 claims description 9
- 229910000833 kovar Inorganic materials 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 4
- 210000001217 buttock Anatomy 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 4
- 229910000807 Ga alloy Inorganic materials 0.000 claims description 3
- 229910001128 Sn alloy Inorganic materials 0.000 claims description 3
- PICOUKGVAGTEEW-UHFFFAOYSA-N [In][Ag][Sn] Chemical compound [In][Ag][Sn] PICOUKGVAGTEEW-UHFFFAOYSA-N 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims 1
- 238000004080 punching Methods 0.000 claims 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 8
- 230000007547 defect Effects 0.000 description 7
- 238000005304 joining Methods 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 239000010948 rhodium Substances 0.000 description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 229910017709 Ni Co Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910003267 Ni-Co Inorganic materials 0.000 description 1
- 229910003262 Ni‐Co Inorganic materials 0.000 description 1
- NEIHULKJZQTQKJ-UHFFFAOYSA-N [Cu].[Ag] Chemical compound [Cu].[Ag] NEIHULKJZQTQKJ-UHFFFAOYSA-N 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- -1 etc.) Chemical compound 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- JVPLOXQKFGYFMN-UHFFFAOYSA-N gold tin Chemical compound [Sn].[Au] JVPLOXQKFGYFMN-UHFFFAOYSA-N 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000037231 joint health Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
- G02B19/0019—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having reflective surfaces only (e.g. louvre systems, systems with multiple planar reflectors)
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
- G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
-
- 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
- H01L33/60—Reflective elements
Definitions
- the present invention relates to a reflector for reflecting light emitted from a light emitting element, a method for manufacturing the same, and a light emitting device to which this reflector is applied, in a device including a light emitting element such as a light emitting diode.
- LEDs Light-emitting elements such as light-emitting diodes (hereinafter referred to as LEDs) are small, have long life and low power consumption, and have excellent drive characteristics. Recently, it has been put to practical use in vehicle sign lights (stop lamps, turn indicators, etc.), signals, and outdoor lights.
- FIG. 6 schematically shows an example of the configuration of a light emitting device including a light emitting element.
- the light emitting device includes a light emitting element and a substrate for fixing the light emitting element, and the light emitting element is driven and controlled through the substrate.
- a reflector (reflector) is installed around the light-emitting element to effectively use the light from the light-emitting element so that the light of the light-emitting element force is reflected forward. It is common that
- a conventionally used reflector for a light-emitting element is generally a block-shaped cylinder having an inclined inner surface as shown in FIG.
- Such a reflector is manufactured by forming a reflective film by attaching silver to a base material formed by molding a metal such as resin or copper into a predetermined shape.
- Patent Document 1 JP-A-9 81055
- brazing as a method of fixing the reflector to the substrate, joining by brazing is generally used.
- a foil-like brazing material is fused to the bottom of the reflector, placed on the substrate, and heated to melt and join the brazing material.
- the thickness distribution of the brazing material at the bonded portion may become uneven.
- defects such as gaps and bubbles remain in the joint. These defects may make the reflector connection unstable and may cause peeling during use. In some cases, tilting may occur, and light from the light emitting element may not be reflected effectively.
- an object of the present invention is to provide a reflector that can suppress the occurrence of bonding defects and can be stably bonded and fixed to a substrate.
- the reason why the non-uniform thickness and defects occur in the brazing material of the joint is considered to be due to the fact that the molten brazing material does not necessarily spread uniformly.
- the molten brazing material tends to agglomerate into a ball shape due to its surface tension, and has a large joining area.
- the brazing material is difficult to spread uniformly over the entire surface, and uneven thickness and defects are likely to occur.
- it is possible to suppress the generation of gaps by increasing the amount of brazing material in advance, but if the amount of brazing material used is too large, the bonding surface force will also protrude and the brazing material will protrude from the substrate and other members. There is a risk of damage.
- when a large amount of brazing material is agglomerated there is a concern that the reflector will float on the brazing material and cannot be fixed in the correct position.
- the present inventors consider that the behavior of the brazing material at the time of melting as described above is considered, and in order to obtain a stable joint portion, the inventors of the present invention consider that a brazing material on the side surface of the reflector is suitable. I thought.
- the present invention is a cylindrical reflector that is arranged so as to surround a light-emitting element installed on a substrate and reflects light from the light-emitting element by its inner surface.
- a brazing material is provided on the entire surface or the entire surface, and the brazing material is melted when bonded to the substrate, and the molten brazing material is lowered along the outer wall to the lower end contacting the substrate. It is a reflector.
- the brazing material on the side surface (outer wall) of the reflector is melted at the time of joining to the substrate, and this is lowered toward the substrate along the outer wall. Due to this lowering, the brazing material reaches the bottom surface of the reflector and the substrate in an energized state, thereby suppressing the occurrence of defects at the joint. And in this application, the thing of the following two specific modes is shown as a reflector using the fall of this brazing material.
- the outer wall shape has a two-stage structure including a body part in contact with the substrate and a flange part wider than the body part, and the outer wall shape is formed on the bottom surface of the body part and the bottom surface of the flange part
- the brazing material of the flange part melts at the time of joining to the substrate, descends along the outer wall, and becomes integrated with the brazing material on the bottom surface of the trunk part! /.
- the reflector according to the first embodiment improves the structure of the outer wall of a conventional block-shaped reflector having a relatively large bottom area.
- the shape is a two-stage structure (inverted L shape) of a body part and a flange part wider than the body part, and a brazing material is joined to the bottom surfaces of the copper part and the flange part.
- Fig. 1 (a) A schematic illustration of this structure is shown in Fig. 1 (a).
- the bottom shape of the collar may be horizontal, but is preferably provided with an inclination (FIG. 1 (c)). This is because the transition of the molten brazing material to the wall surface of the body portion becomes smoother.
- the thickness of the brazing material is preferably 1 to 30% of the thickness of the substrate, or 10 to 60 ⁇ m. Further, it is preferable that the brazing material at the bottom of the trunk and the brazing material at the bottom of the buttock are equal in thickness.
- the reflector according to the second embodiment of the present application includes a thin plate cylinder that is substantially parallel to the outer wall and the inner surface, and includes a brazing material in at least a part of the outer wall, and the outer wall is joined to the substrate.
- the brazing filler metal melts and descends to the lower end where it contacts the substrate.
- the reflector differs from the first reflector in that the first reflector is in the form of a block, whereas the reflector is made of a thin plate having a small contact area with the substrate. And this shape and the above-mentioned action of the brazing material descending on the side surface will form a healthy joint! That is, when the reflector is placed on the substrate, there is a slight force gap between its lower end and the substrate, but the brazing material on the substrate tends to penetrate from the outer wall side to the inner surface side due to capillary action. is there. In the present invention, the lowered brazing material is energized, and more easily penetrates through the gap and surrounds the lower end portion from the inner and outer surfaces. In addition, this reflector is connected to the substrate.
- the contact area is small, even if the brazing material agglomerates, the entire bottom end is surrounded and fixed easily. This behavior of the brazing material occurs all around the lower end of the reflector. Therefore, the junction between the reflector and the substrate can be strengthened.
- the edge is formed so that the tip portion in contact with the substrate is in substantially line contact with the substrate.
- the tip shape is made in this way in order to make the state (shape) of the brazing material after brazing suitable.
- an appropriate gap is likely to be formed between the substrate and the outer wall-side force brazing material is easily penetrated, and a more suitable joint shape is formed. This is because it is easy to obtain.
- the thickness of the brazing material here is preferably 1 to 30% of the thickness of the substrate, or 10 to 60 m, like the reflector of the first embodiment.
- the brazing material may be formed in the whole surface, and one part (lower half etc.) may be sufficient as it.
- the reflector according to the second embodiment of the present invention is formed of a thin plate, so that the heat emitted from the light emitting element can also be efficiently dissipated, and the capacity of the light emitting element can be sufficiently exploited. It is also advantageous in that it can be released. From the viewpoint of heat dissipation efficiency, it is acceptable to form a plurality of protrusions on the outer wall of the reflector.
- the reflector according to the present invention described above may be formed by integrally molding a reflective material such as silver in any form, but preferably includes a base material and a reflective layer, and has an inner peripheral surface.
- a reflective layer is formed.
- a typical example of the reflective material constituting the reflective layer is silver.
- silver is excellent in reflectance, it has poor corrosion resistance and may be blackened (oxidized) during use. Therefore, it is preferable that the reflective material having excellent corrosion resistance (reflectance maintaining property) is provided with a silver-indium-tin alloy, a silver-gallium alloy, and a reflective layer having rhodium power.
- the reflective layer preferably has a thickness of 0.1 to LO / z m.
- the base material for the reflector can be used with conventional reflectors such as Kovar (Fe—Ni—Co alloy) and 42 alloy (Fe—Ni alloy). .
- Kovar Fe—Ni—Co alloy
- 42 alloy Fe—Ni alloy
- the base material can be formed of copper, a copper alloy (such as a copper-nickel alloy), aluminum, or the like, which is a material having better workability than Kovar.
- brazing material in addition to silver brazing made of a silver-copper alloy or the like, gold brazing (gold-tin, etc.), aluminum brazing, or tin brazing is preferable.
- the shape of the cross section of the reflector according to the present invention is not limited, and may be any of a circular shape, an elliptical shape, and a polygonal shape as long as it surrounds the light emitting element and can reflect the emitted light.
- the inclination of the inner peripheral surface may be linear or curved as long as the light of the light emitting element force can be reflected. The tilt should be determined based on the reflection efficiency of light from the optical element.
- the reflector 1 according to the present invention may be used alone (in a state in which the reflectors are formed one by one) at the time of bonding to the substrate, but a plurality of reflectors are arranged and connected in advance. It is okay. By applying such an array of reflectors, the reflector can be efficiently bonded to the substrate.
- the reflector 1 according to the present invention can be manufactured by drawing and pressing the plate material.
- the dimensional accuracy of the molded product by drawing and press carriage depends on the dimensional accuracy of processing tools such as punches and dies, but the accuracy of the molded product is maintained by strictly defining these dimensional accuracy. However, it can be repeatedly manufactured.
- the reflective layer is formed by forming the base material by the above-described drawing process and attaching a reflective material to this as in the conventional case. It ’s okay.
- a clad material composed of a base material and a reflective layer may be applied and drawn. According to the latter method, the reflector can be manufactured efficiently.
- the reflector according to the present invention further includes a brazing material on the outer peripheral surface. The brazing material may also be formed after the reflector is molded, but it is processed in the state of a clad material. It is preferable to mold.
- the clad material is not particularly limited, and a reflective layer may be formed on the plate material as a base material, or the reflective material may be rolled on the plate material and bonded by roll rolling. good.
- the cladding material is the above As described above, Kovar, 42 alloy (Fe Ni alloy), copper, copper alloy, aluminum, etc. can be selected as the base material.
- the reflective layer is preferably made of silver, silver indium tin alloy, silver-gallium alloy, or rhodium force.
- the brazing material is preferably silver brazing, gold brazing, aluminum brazing, or tin brazing.
- FIG. 1 is a view showing an outer wall structure of a first reflector according to the present invention.
- FIG. 2 is a diagram for explaining a reflector manufacturing process in the first embodiment.
- FIG. 3 is a cross-sectional photograph of the reflector according to the first embodiment after the substrate is joined.
- FIG. 4 is a cross-sectional photograph of the reflector according to the second embodiment after substrate bonding.
- FIG. 5 Cross-sectional photograph of a conventional reflector after substrate bonding.
- FIG. 6 illustrates an example of a structure of a device including a light emitting element.
- FIG. 2 is a diagram schematically illustrating the manufacturing process of this reflector.
- a silver sheet serving as a reflective layer, a Kovar material serving as a base material, and a brazing material (72% Ag—28% Cu) sheet were clad by roll rolling to produce a thin three-layer clad plate material.
- the clad plate material was drawn with a punch, and the center portion was punched to form a reflector.
- the reflector of the first embodiment of the present application was manufactured.
- a three-layer clad material produced in the same manner as in the first embodiment was formed into a block-shaped reflector having a two-stage outer wall structure having the same shape as that illustrated in FIG.
- Bonding test to base plate Then, a brazing test to a ceramic substrate was performed on the two manufactured reflectors. In this test, a reflector was positioned and placed on a ceramic substrate, heated in a furnace, then removed and cooled, and the state of the joint was observed. For comparison, the conventional reflector shown in Fig. 6 was also tested in the same way.
- FIG. 3 and FIG. 4 show cross-sectional photographs after the substrate bonding of the reflector manufactured in each example. From these pictures, in the reflector according to this embodiment, however, the brazing material on the outer wall flows down, and sufficient brazing material is supplied and fixed to the lower end of the brazing material. Moreover, the generation
- FIG. 5 is a cross-sectional photograph of the joining portion of the conventional reflector, but in the case of the conventional product, a gap is formed between the substrate and the substrate. This gap was observed in some places on the inner periphery of the joint. Therefore, although the reflector 1 according to this comparative example can be temporarily joined, it is considered that there is a risk of detachment during use.
- the reflector 1 according to the present invention can maintain a stable bonded state in which there is no defect in the bonded portion after bonding to the substrate, and it is difficult for displacement and detachment from the substrate to occur during use.
- the brazing material is provided in advance, the reflector joining process can be efficiently performed.
- a light emitting device including the reflector according to the present invention can maintain good light emission for a long period of time and can fully exhibit the characteristics of a light emitting element having a long lifetime.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Led Device Packages (AREA)
Abstract
A cylindrical reflector is arranged so as to surround a light emitting element arranged on a substrate and reflects the light from the light emitting element by its inner surface. At least a part of the outer wall has wax material on the entire surface and the wax material is melted when bonding with the substrate. The melted wax material goes down along the outer wall to the lowest portion in contact with the substrate. As for a specific shape, the outer wall has two-stage structure having a drum portion in contact with the substrate and a collar portion wider than the drum portion and wax material is arranged on the bottom of the drum portion and bottom of the collar portion in a block state. Alternatively, the outer wall and the inner wall are substantially parallel to each other to form a thin cylindrical body and wax material is arranged at least a part of the outer wall.
Description
明 細 書 Specification
発光素子用のリフレタター及びその製造方法、並びに該リフレタターを備 える発光デバイス REFRETATOR FOR LIGHT EMITTING ELEMENT, MANUFACTURING METHOD THEREOF, AND LIGHT EMITTING DEVICE HAVING THE REFRETATOR
技術分野 Technical field
[0001] 本発明は、発光ダイオード等の発光素子を備えるデバイスにおいて、発光素子から 放射される光を反射させるためのリフレタター及びその製造方法、並びに、このリフレ クタ一を適用する発光デバイスに関する。 The present invention relates to a reflector for reflecting light emitted from a light emitting element, a method for manufacturing the same, and a light emitting device to which this reflector is applied, in a device including a light emitting element such as a light emitting diode.
背景技術 Background art
[0002] 発光ダイオード (以下、 LEDと称する)等の発光素子は、小型で寿命が長く消費電 力が低いことに加え、駆動特性にも優れていることから、古くは各種インジケータ用光 源として利用されており、最近では、車両用標識灯 (ストップランプ、方向指示器等)、 信号、外灯への実用化がなされている。 [0002] Light-emitting elements such as light-emitting diodes (hereinafter referred to as LEDs) are small, have long life and low power consumption, and have excellent drive characteristics. Recently, it has been put to practical use in vehicle sign lights (stop lamps, turn indicators, etc.), signals, and outdoor lights.
[0003] 図 6は、発光素子を備える発光デバイスの一例の構成を概略示すものである。図 6 において発光デバイスは、発光素子と、発光素子を固定する基板を備え、発光素子 は基板を通じて駆動、制御される。そして、発光素子を用いた発光デバイスにおいて は、発光素子からの光を有効に利用するため、その周辺にリフレタター (反射板)が 設置されており、発光素子力 の光を前方に反射するようになっているものが一般的 である。 FIG. 6 schematically shows an example of the configuration of a light emitting device including a light emitting element. In FIG. 6, the light emitting device includes a light emitting element and a substrate for fixing the light emitting element, and the light emitting element is driven and controlled through the substrate. In a light-emitting device using a light-emitting element, a reflector (reflector) is installed around the light-emitting element to effectively use the light from the light-emitting element so that the light of the light-emitting element force is reflected forward. It is common that
[0004] 従来より使用されている発光素子用のリフレクタ一は、図 6のような傾斜する内面を 有するブロック状の筒体が一般的である。このようなリフレクタ一は、榭脂或いは銅等 の金属を所定形状に成形加工した基材に、銀をめつきして反射膜を形成することで 製造されている。 [0004] A conventionally used reflector for a light-emitting element is generally a block-shaped cylinder having an inclined inner surface as shown in FIG. Such a reflector is manufactured by forming a reflective film by attaching silver to a base material formed by molding a metal such as resin or copper into a predetermined shape.
特許文献 1:特開平 9 81055号公報 Patent Document 1: JP-A-9 81055
発明の開示 Disclosure of the invention
[0005] ところで、リフレタターを基板へ固定する方法としては、ろう付けによる接合が一般的 である。この場合、まず、リフレタター底部に箔状のろう材を融着し、これを基板上に 載置し、加熱することでろう材を溶融させて接合する。しかし、従来のリフレタターでは
、このようにして基板へ接合した後、接合部のろう材の厚さ分布に不均一が生じること がある。また、接合部に隙間や気泡等の欠陥が残留する等の問題もある。これらの欠 陥は、リフレタターの接合を不安定なものとし、使用時において剥離が生じるおそれ があり、また、場合によっては傾きが生じ、発光素子からの光が有効に反射されない ことがある。 [0005] Incidentally, as a method of fixing the reflector to the substrate, joining by brazing is generally used. In this case, first, a foil-like brazing material is fused to the bottom of the reflector, placed on the substrate, and heated to melt and join the brazing material. However, with conventional reflectors After bonding to the substrate in this way, the thickness distribution of the brazing material at the bonded portion may become uneven. There is also a problem that defects such as gaps and bubbles remain in the joint. These defects may make the reflector connection unstable and may cause peeling during use. In some cases, tilting may occur, and light from the light emitting element may not be reflected effectively.
[0006] そこで、本発明は、接合の欠陥発生が抑制されており、基板へ安定的に接合'固定 させることができるリフレタターを提供することを目的とする。 [0006] Accordingly, an object of the present invention is to provide a reflector that can suppress the occurrence of bonding defects and can be stably bonded and fixed to a substrate.
[0007] 接合部のろう材に厚さの不均一、欠陥が生じるのは、溶融したろう材の濡れ広がり が必ずしも均一に生じないことによるものと考えられる。特に、溶融したろう材は、その 表面張力により玉状に凝集する傾向にあり、接合面積が広!、場合には全面に均一 に広がり難ぐろう材に不均一な厚さや欠陥を生じ易い。これに対し、予めろう材の量 を増加させることで、隙間の発生を抑制しょうとすることもできるが、ろう材の使用量が 多すぎると接合面力もろう材がはみ出し基板や他の部材を損傷するおそれがある。ま た、多量のろう材が凝集した場合には、リフレタターがろう材に浮いた状態になり、正 確な位置に固定できないことも懸念される。 [0007] The reason why the non-uniform thickness and defects occur in the brazing material of the joint is considered to be due to the fact that the molten brazing material does not necessarily spread uniformly. In particular, the molten brazing material tends to agglomerate into a ball shape due to its surface tension, and has a large joining area. In some cases, the brazing material is difficult to spread uniformly over the entire surface, and uneven thickness and defects are likely to occur. On the other hand, it is possible to suppress the generation of gaps by increasing the amount of brazing material in advance, but if the amount of brazing material used is too large, the bonding surface force will also protrude and the brazing material will protrude from the substrate and other members. There is a risk of damage. In addition, when a large amount of brazing material is agglomerated, there is a concern that the reflector will float on the brazing material and cannot be fixed in the correct position.
[0008] 本発明者等は、上記のような溶融時のろう材の挙動を考慮し、安定した接合部を得 るため、リフレタターの側面にろう材を備えるものが好適であるとして本願発明に想到 した。 [0008] The present inventors consider that the behavior of the brazing material at the time of melting as described above is considered, and in order to obtain a stable joint portion, the inventors of the present invention consider that a brazing material on the side surface of the reflector is suitable. I thought.
[0009] 即ち、本発明は、基板上に設置された発光素子を包囲するように配置され、前記発 光素子からの光をその内面により反射する筒状のリフレタターにおいて、外壁の少な くとも一部又は全面にろう材を備え、基板と接合する際に前記ろう材が溶融し、溶融 したろう材が外壁に沿って基板に接触する下端部まで降下するようになっていること を特徴とするリフレタターである。 That is, the present invention is a cylindrical reflector that is arranged so as to surround a light-emitting element installed on a substrate and reflects light from the light-emitting element by its inner surface. A brazing material is provided on the entire surface or the entire surface, and the brazing material is melted when bonded to the substrate, and the molten brazing material is lowered along the outer wall to the lower end contacting the substrate. It is a reflector.
[0010] 本発明のリフレタターでは、基板への接合時にリフレタター側面 (外壁)のろう材が 溶融し、これが外壁に沿って基板へ向力つて降下するようになっている。この降下に より、ろう材は、付勢された状態でリフレタター底面及び基板に到達し、これにより接 合部の欠陥発生を抑制する。そして、本願では、かかるろう材の降下を利用するリフ レクターとして、次のような 2つの具体的な態様のものを提示する。
[0011] 第 1の形態は、外壁形状が、基板と接する胴部と該胴部より幅広の鍔部とからなる 2 段構造を有し、前記胴部の底面及び前記鍔部の底面にろう材を備え、基板との接合 時に前記鍔部のろう材が溶融し、外壁に沿って降下し、胴部底面のろう材と一体ィ匕 するようになって!/、るものである。 [0010] In the reflector of the present invention, the brazing material on the side surface (outer wall) of the reflector is melted at the time of joining to the substrate, and this is lowered toward the substrate along the outer wall. Due to this lowering, the brazing material reaches the bottom surface of the reflector and the substrate in an energized state, thereby suppressing the occurrence of defects at the joint. And in this application, the thing of the following two specific modes is shown as a reflector using the fall of this brazing material. [0011] In the first form, the outer wall shape has a two-stage structure including a body part in contact with the substrate and a flange part wider than the body part, and the outer wall shape is formed on the bottom surface of the body part and the bottom surface of the flange part The brazing material of the flange part melts at the time of joining to the substrate, descends along the outer wall, and becomes integrated with the brazing material on the bottom surface of the trunk part! /.
[0012] この第 1の形態のリフレクタ一は、底面積の比較的大きい、従来のブロック状のリフ レクターの外壁の構造を改良するものである。本発明では、その形状が、胴部と胴部 より幅広の鍔部の 2段構造 (逆 L字形状)となっていおり、銅部及び鍔部の底面にろう 材が接合されている。この構造を概略図示すると図 1 (a)のようになる。このリフレクタ 一を基板へろう付けする際、まず胴部底面のろう材の溶融による接合部が形成される 力 それに続いて鍔部底面のろう材が溶融しリフレタター外壁に沿って付勢されなが ら降下し、胴部底面のろう材と一体ィ匕するようになつている(図 1 (b) )。この一連の動 作により、胴部底面のろう材に気泡や欠けが生じても、鍔部力 のろう材の補充がな され、欠陥の無い接合部が形成される。 [0012] The reflector according to the first embodiment improves the structure of the outer wall of a conventional block-shaped reflector having a relatively large bottom area. In the present invention, the shape is a two-stage structure (inverted L shape) of a body part and a flange part wider than the body part, and a brazing material is joined to the bottom surfaces of the copper part and the flange part. A schematic illustration of this structure is shown in Fig. 1 (a). When this reflector is brazed to the substrate, the joint is formed by melting the brazing material on the bottom of the body, and then the brazing material on the bottom of the buttock melts and is not urged along the outer wall of the reflector. And then it is integrated with the brazing material on the bottom of the torso (Fig. 1 (b)). Through this series of operations, even if bubbles or chips are generated in the brazing material on the bottom of the body, the brazing material is replenished with a buttock force, and a defect-free joint is formed.
[0013] この、鍔部の底面形状は、水平であっても良いが、傾斜が設けられているのが好ま しい(図 1 (c) )。溶融したろう材の胴部壁面への移行がよりスムースとなるからである。 [0013] The bottom shape of the collar may be horizontal, but is preferably provided with an inclination (FIG. 1 (c)). This is because the transition of the molten brazing material to the wall surface of the body portion becomes smoother.
[0014] 尚、ろう材の厚さは、基板の厚さの 1〜30%、又は、 10〜60 μ mとするのが好まし い。また、胴部底部のろう材と鍔部底部のろう材との厚さは等しいものが好ましい。 [0014] The thickness of the brazing material is preferably 1 to 30% of the thickness of the substrate, or 10 to 60 μm. Further, it is preferable that the brazing material at the bottom of the trunk and the brazing material at the bottom of the buttock are equal in thickness.
[0015] そして、本願における第 2の形態のリフレクタ一は、外壁と内面と略平行である薄板 の筒体からなり、前記外壁の少なくとも一部にろう材を備え、基板との接合時に前記 外壁のろう材が溶融し、基板と接触する下端部に降下するようになっているものであ る。 [0015] The reflector according to the second embodiment of the present application includes a thin plate cylinder that is substantially parallel to the outer wall and the inner surface, and includes a brazing material in at least a part of the outer wall, and the outer wall is joined to the substrate. The brazing filler metal melts and descends to the lower end where it contacts the substrate.
[0016] このリフレクタ一は、第 1のリフレタターがブロック状であるのに対し、基板との接触 面積が小さくなるような薄板よりなる点において異なるものである。そして、この形状と 、上記した側面のろう材降下の作用により健全な接合部が形成されるようになって!/ヽ る。即ち、リフレタターを基板に載置する際、その下端部と基板との間にはわずかな 力 隙間が生じているが、基板上のろう材は毛細管現象により外壁側から内面側へ 浸透する傾向にある。そして、本発明では降下したろう材は付勢されており、より容易 に隙間から浸透して内外面から下端部を包囲する。また、このリフレクタ一は、基板と
の接触面積が小さいことから、ろう材の凝集が生じても下端部全面が包囲 ·固定され た状態が維持され易い。ろう材のこのような挙動は、リフレタター下端部の全周で生じ る。従って、リフレタターと基板との接合を強固なものとすることができる。 [0016] The reflector differs from the first reflector in that the first reflector is in the form of a block, whereas the reflector is made of a thin plate having a small contact area with the substrate. And this shape and the above-mentioned action of the brazing material descending on the side surface will form a healthy joint! That is, when the reflector is placed on the substrate, there is a slight force gap between its lower end and the substrate, but the brazing material on the substrate tends to penetrate from the outer wall side to the inner surface side due to capillary action. is there. In the present invention, the lowered brazing material is energized, and more easily penetrates through the gap and surrounds the lower end portion from the inner and outer surfaces. In addition, this reflector is connected to the substrate. Since the contact area is small, even if the brazing material agglomerates, the entire bottom end is surrounded and fixed easily. This behavior of the brazing material occurs all around the lower end of the reflector. Therefore, the junction between the reflector and the substrate can be strengthened.
[0017] そして、本発明に係るリフレタターでは、基板と接触する先端部が基板と略線接触 するようにエッジが形成されているのが好ましい。先端形状をこのようにするのは、ろう 付け後のろう材の状態 (形状)を好適なものにするためである。即ち、エッジが形成さ れ先端部が線接触の状態にあると、基板との間に適度な隙間が生じ易くなり、外壁側 力 のろう材の浸透が容易となり、より好適な接合部形状を得ることが容易となるから である。 [0017] In the reflector according to the present invention, it is preferable that the edge is formed so that the tip portion in contact with the substrate is in substantially line contact with the substrate. The tip shape is made in this way in order to make the state (shape) of the brazing material after brazing suitable. In other words, when the edge is formed and the tip is in a line contact state, an appropriate gap is likely to be formed between the substrate and the outer wall-side force brazing material is easily penetrated, and a more suitable joint shape is formed. This is because it is easy to obtain.
[0018] ここでのろう材の厚さは、第 1の形態のリフレタターと同様、基板の厚さの 1〜30%、 又は、 10〜60 mとするのが好ましい。尚、ろう材が外周面を被覆する領域につい ては、全面にろう材が形成されていても良いし、一部(下半分等)であってもよい。 [0018] The thickness of the brazing material here is preferably 1 to 30% of the thickness of the substrate, or 10 to 60 m, like the reflector of the first embodiment. In addition, about the area | region where a brazing material coat | covers an outer peripheral surface, the brazing material may be formed in the whole surface, and one part (lower half etc.) may be sufficient as it.
[0019] 尚、本発明の第 2の形態のリフレクタ一は、薄板で形成されることにより、発光素子 力も放出される熱を効率的に放熱することができ、発光素子の能力を十分に引き出 すことができる点でも有利である。そして、この放熱効率の観点からリフレタター外壁 に凸部を複数形成しても良 ヽ。 [0019] It should be noted that the reflector according to the second embodiment of the present invention is formed of a thin plate, so that the heat emitted from the light emitting element can also be efficiently dissipated, and the capacity of the light emitting element can be sufficiently exploited. It is also advantageous in that it can be released. From the viewpoint of heat dissipation efficiency, it is acceptable to form a plurality of protrusions on the outer wall of the reflector.
[0020] 以上説明した本発明に係るリフレクタ は、何れの形態でも銀等の反射材料を一 体的に成形したものでも良いが、好ましいのは、基材と反射層とからなり、内周面に 反射層が形成されているものが好ましい。反射層を構成する反射材料は、代表的な ものとして銀が挙げられるが、銀は反射率に優れるものの、耐食性には劣り使用過程 で黒化 (酸化)することがある。そこで、耐食性 (反射率の維持特性)に優れる反射材 料として銀—インジウム—錫合金、銀—ガリウム合金、ロジウム力 なる反射層を備え たものが好ましい。尚、反射層の厚さは、 0. 1〜: LO /z mのものが好ましい。 [0020] The reflector according to the present invention described above may be formed by integrally molding a reflective material such as silver in any form, but preferably includes a base material and a reflective layer, and has an inner peripheral surface. Preferably, a reflective layer is formed. A typical example of the reflective material constituting the reflective layer is silver. Although silver is excellent in reflectance, it has poor corrosion resistance and may be blackened (oxidized) during use. Therefore, it is preferable that the reflective material having excellent corrosion resistance (reflectance maintaining property) is provided with a silver-indium-tin alloy, a silver-gallium alloy, and a reflective layer having rhodium power. The reflective layer preferably has a thickness of 0.1 to LO / z m.
[0021] また、リフレタターの基材につ!/、ては、従来のリフレタターで用いられて 、るコバー ル (Fe— Ni— Co系合金)、 42ァロイ (Fe— Ni系合金)が適用できる。接触面積の大 きいブロック状のリフレタターの場合は、基板 (通常、窒化アルミ等のセラミックスが用 いられる)と熱膨張の差の小さい材質としてコバール等を適用することが多くなる。伹 し、薄板力もなる第 2のリフレタターに関しては、更に広範な材質の選択ができる。基
板との接触面積が小さいため、熱膨張の差を考慮する必要が少ないからである。従 つて、第 2のリフレタターでは、コバールよりも加工性の優れた材料である銅、銅合金( 銅一ニッケル合金等)、アルミニウム等で基材を形成することもできる。 [0021] Also, as a base material for the reflector, it can be used with conventional reflectors such as Kovar (Fe—Ni—Co alloy) and 42 alloy (Fe—Ni alloy). . In the case of a block-shaped reflector with a large contact area, Kovar or the like is often applied as a material having a small difference in thermal expansion from the substrate (usually ceramics such as aluminum nitride). However, for the second reflector, which has a thin plate force, a wider range of materials can be selected. Base This is because there is little need to consider the difference in thermal expansion because the contact area with the plate is small. Therefore, in the second reflector, the base material can be formed of copper, a copper alloy (such as a copper-nickel alloy), aluminum, or the like, which is a material having better workability than Kovar.
[0022] 更に、ろう材については、銀-銅合金等からなる銀ろうの他、金ろう(金-錫等)、ァ ルミユウムろう、錫ろうが好ましい。 Furthermore, as the brazing material, in addition to silver brazing made of a silver-copper alloy or the like, gold brazing (gold-tin, etc.), aluminum brazing, or tin brazing is preferable.
[0023] 尚、本発明に係るリフレタターの横断面の形状についての制限はなぐ発光素子を 包囲し、その発光を反射することが可能であれば、円形、楕円形、多角形いずれの 形状でも良い。また、内周面の傾斜についても、発光素子力 の光を反射できるので あれば、直線状、曲線状のいずれの傾斜であっても良い。傾斜については、光学素 子からの光の反射効率を基に定められるべきである。 [0023] It should be noted that the shape of the cross section of the reflector according to the present invention is not limited, and may be any of a circular shape, an elliptical shape, and a polygonal shape as long as it surrounds the light emitting element and can reflect the emitted light. . Further, the inclination of the inner peripheral surface may be linear or curved as long as the light of the light emitting element force can be reflected. The tilt should be determined based on the reflection efficiency of light from the optical element.
[0024] 本発明に係るリフレクタ一は、基板への接合の際、単独で(1個づっ成形された状 態で)使用しても良いが、予め、複数のリフレタターを整列配置して連結されていても 良い。このようなアレイ状のリフレタターを適用することで、リフレタターの基板への接 合を効率的に行なうことができる。 [0024] The reflector 1 according to the present invention may be used alone (in a state in which the reflectors are formed one by one) at the time of bonding to the substrate, but a plurality of reflectors are arranged and connected in advance. It is okay. By applying such an array of reflectors, the reflector can be efficiently bonded to the substrate.
[0025] そして、本発明に係るリフレクタ一は、板材の絞り加工、プレスカ卩ェして製造できる。 [0025] The reflector 1 according to the present invention can be manufactured by drawing and pressing the plate material.
この絞り加工、プレスカ卩ェによる成形品の寸法精度は、パンチ、ダイ等の加工工具の 寸法精度に依存するが、これらの寸法精度を厳密に規定しておくことで成形品の精 度を維持しつつ繰り返し製造することができる。 The dimensional accuracy of the molded product by drawing and press carriage depends on the dimensional accuracy of processing tools such as punches and dies, but the accuracy of the molded product is maintained by strictly defining these dimensional accuracy. However, it can be repeatedly manufactured.
[0026] 基材と反射層とからなるリフレタターを製造する場合、反射の層の形成は、基材を 上記した絞り加工で成形し、これに従来と同様、反射材料をめつきすることによつても 良い。また、加工対象となる板材として、基材と反射層とからなるクラッド材を適用し、 これを絞り加工しても良い。後者の方法によればリフレタターを効率的に製造すること ができる。そして、本発明に係るリフレクタ一は、外周面にろう材を更に備えたもので あるが、ろう材も同様に、リフレタターを成形した後に形成しても良いが、クラッド材の 状態で加工して成形することが好ましい。即ち、反射層、基材、ろう材の 3層のクラッド 材を加工することで効率的な製造が可能となる。加工対象となるクラッド材の製造は、 特に限定されるものではなぐ基材となる板材に反射層をめつきにより形成しても良し 、板材に反射材を重ねてロール圧延して接合しても良い。クラッド材の材質は、上記
の通り、基材としては、コバール、 42ァロイ (Fe Ni系合金)、銅、銅合金、アルミ-ゥ ム等を選択することができる。一方、反射層は、銀、銀 インジウム 錫合金、銀ーガ リウム合金、ロジウム力もなるものが好ましい。更に、ろう材は、銀ろう、金ろう、アルミ ニゥムろう、錫ろうが好ましい。 [0026] In the case of manufacturing a reflector having a base material and a reflective layer, the reflective layer is formed by forming the base material by the above-described drawing process and attaching a reflective material to this as in the conventional case. It ’s okay. Further, as a plate material to be processed, a clad material composed of a base material and a reflective layer may be applied and drawn. According to the latter method, the reflector can be manufactured efficiently. The reflector according to the present invention further includes a brazing material on the outer peripheral surface. The brazing material may also be formed after the reflector is molded, but it is processed in the state of a clad material. It is preferable to mold. In other words, efficient production is possible by processing three layers of the clad material: reflective layer, base material, and brazing material. Production of the clad material to be processed is not particularly limited, and a reflective layer may be formed on the plate material as a base material, or the reflective material may be rolled on the plate material and bonded by roll rolling. good. The cladding material is the above As described above, Kovar, 42 alloy (Fe Ni alloy), copper, copper alloy, aluminum, etc. can be selected as the base material. On the other hand, the reflective layer is preferably made of silver, silver indium tin alloy, silver-gallium alloy, or rhodium force. Further, the brazing material is preferably silver brazing, gold brazing, aluminum brazing, or tin brazing.
図面の簡単な説明 Brief Description of Drawings
[0027] [図 1]本発明に係る第 1のリフレタターの外壁構造を示す図。 FIG. 1 is a view showing an outer wall structure of a first reflector according to the present invention.
[図 2]第 1実施形態におけるリフレタター製造工程を説明する図。 FIG. 2 is a diagram for explaining a reflector manufacturing process in the first embodiment.
[図 3]第 1実施形態に係るリフレタターの基板接合後の断面写真。 FIG. 3 is a cross-sectional photograph of the reflector according to the first embodiment after the substrate is joined.
[図 4]第 2実施形態に係るリフレタターの基板接合後の断面写真。 FIG. 4 is a cross-sectional photograph of the reflector according to the second embodiment after substrate bonding.
[図 5]従来のリフレタターの基板接合後の断面写真。 [Fig. 5] Cross-sectional photograph of a conventional reflector after substrate bonding.
[図 6]発光素子を備えるデバイスの構成の例を示す図。 FIG. 6 illustrates an example of a structure of a device including a light emitting element.
発明を実施するための最良の形態 BEST MODE FOR CARRYING OUT THE INVENTION
[0028] 以下、本発明の好適と思われる実施の形態について説明する。 [0028] Embodiments that are considered suitable for the present invention will be described below.
[0029] 第 1実施形餱:ここでは、本願第 2の形態のリフレタターを製造さした。図 2は、このリフ レクターの製造工程を概略説明する図である。まず、反射層となる銀シート、基材とな るコバール材、ろう材(72%Ag— 28%Cu)シートをロール圧延法にてクラッドし、薄 板状の 3層クラッド板材を製造した。次に、このクラッド板材をパンチにて絞り加工し、 更に、中央部を打ち抜き加工してリフレタターに成形加工した。 First embodiment 餱: Here, the reflector of the second embodiment of the present application was manufactured. FIG. 2 is a diagram schematically illustrating the manufacturing process of this reflector. First, a silver sheet serving as a reflective layer, a Kovar material serving as a base material, and a brazing material (72% Ag—28% Cu) sheet were clad by roll rolling to produce a thin three-layer clad plate material. Next, the clad plate material was drawn with a punch, and the center portion was punched to form a reflector.
[0030] 第 2実施形態:ここでは、本願第 1の形態のリフレタターを製造した。第 1実施形態と 同様にして製造した 3層クラッド材を、プレスカ卩ェにより図 1で例示したものと同様の 形状を有する外壁 2段構造のブロック状のリフレタターに成形した。 Second Embodiment: Here, the reflector of the first embodiment of the present application was manufactured. A three-layer clad material produced in the same manner as in the first embodiment was formed into a block-shaped reflector having a two-stage outer wall structure having the same shape as that illustrated in FIG.
[0031] 某板への接合試験:そして、製造した 2種のリフレタターについて、セラミック基板へ のろう付け試験を行なった。この試験では、セラミック基板へ、リフレタターを位置決め して載置し、これを炉内で加熱し、その後取り出して冷却後、接合部の状態を観察し た。また、比較のため、図 6で示した従来のリフレタターについても同様に試験を行な つた o [0031] Bonding test to base plate: Then, a brazing test to a ceramic substrate was performed on the two manufactured reflectors. In this test, a reflector was positioned and placed on a ceramic substrate, heated in a furnace, then removed and cooled, and the state of the joint was observed. For comparison, the conventional reflector shown in Fig. 6 was also tested in the same way.
[0032] 図 3及び図 4は、各実施例で製造したリフレタターの基板接合後の断面写真をそれ ぞれ示すものである。これらの写真から、本実施形態に係るリフレタターでは、いずれ
も外壁面のろう材が流れ落ち、その下端部には十分なろう材が供給され固定されて いる。また、接合部において隙間の発生はみられな力つた。 FIG. 3 and FIG. 4 show cross-sectional photographs after the substrate bonding of the reflector manufactured in each example. From these pictures, in the reflector according to this embodiment, However, the brazing material on the outer wall flows down, and sufficient brazing material is supplied and fixed to the lower end of the brazing material. Moreover, the generation | occurrence | production of the clearance gap was not seen in the junction part.
[0033] 一方、図 5は、従来のリフレタターの接合部分の断面写真であるが、従来品の場合 、基板との間に隙間が生じている。この隙間は、接合部の内周で所々観察されてい た。従って、この比較例に係るリフレクタ一は、一応の接合はできるものの、使用時の 脱離のおそれがあると考えられる。 [0033] On the other hand, FIG. 5 is a cross-sectional photograph of the joining portion of the conventional reflector, but in the case of the conventional product, a gap is formed between the substrate and the substrate. This gap was observed in some places on the inner periphery of the joint. Therefore, although the reflector 1 according to this comparative example can be temporarily joined, it is considered that there is a risk of detachment during use.
産業上の利用可能性 Industrial applicability
[0034] 本発明に係るリフレクタ一は、基板と接合後の接合部に欠陥がなぐ安定した接合 状態を維持でき、使用時において基板からの位置ズレ、脱離の発生がし難くなつて いる。また、本発明では、予めろう材を備えていることから、リフレタター接合の工程を 効率的に行なうことができる。そして、本発明に係るリフレタターを備える発光デバイ スは、長期間良好な発光を維持することができ、長寿命である発光素子の特性を十 分〖こ発揮させることができる。
[0034] The reflector 1 according to the present invention can maintain a stable bonded state in which there is no defect in the bonded portion after bonding to the substrate, and it is difficult for displacement and detachment from the substrate to occur during use. In the present invention, since the brazing material is provided in advance, the reflector joining process can be efficiently performed. In addition, a light emitting device including the reflector according to the present invention can maintain good light emission for a long period of time and can fully exhibit the characteristics of a light emitting element having a long lifetime.
Claims
[1] 基板上に設置された発光素子を包囲するように配置され、前記発光素子からの光を その内面により反射する筒状のリフレタターにおいて、 [1] In a cylindrical reflector that is arranged so as to surround a light emitting element installed on a substrate and reflects light from the light emitting element by its inner surface,
外壁の少なくとも一部又は全面にろう材を備え、 A brazing material is provided on at least a part or the entire outer wall,
基板と接合する際に前記ろう材が溶融し、溶融したろう材が外壁に沿って基板に接 触する下端部まで降下するようになっていることを特徴とするリフレタター。 2. A reflector as set forth in claim 1, wherein the brazing material is melted when bonded to the substrate, and the molten brazing material is lowered along the outer wall to the lower end contacting the substrate.
[2] 外壁の形状が、基板と接する胴部と該胴部より幅広の鍔部とからなる 2段構造を有し [2] The outer wall has a two-stage structure in which the body portion is in contact with the substrate and the flange portion is wider than the body portion.
、前記胴部の底面及び前記鍔部の底面にろう材を備え、 , A brazing material is provided on the bottom surface of the trunk portion and the bottom surface of the flange portion,
基板と接合する際に前記鍔部のろう材が溶融し、溶融したろう材が外壁に沿って降 下し月同部底面のろう材と一体ィ匕するようになつている請求項 1記載のリフレタター。 2. The brazing material in the flange portion melts when bonded to the substrate, and the molten brazing material descends along the outer wall so as to be integrated with the brazing material on the bottom surface of the moon portion. Reflector.
[3] 鍔部の底面が傾斜して!/、る請求項 2記載のリフレタター。 [3] The reflector according to claim 2, wherein the bottom surface of the buttocks is inclined!
[4] 外壁と内面とが略平行となる薄板の筒状体力 なり、前記外壁の少なくとも一部にろ ぅ材を備え、 [4] It is a thin plate cylindrical body force in which the outer wall and the inner surface are substantially parallel, and at least part of the outer wall is provided with a filter material.
基板と接合する際に前記ろう材が溶融し、溶融したろう材が外壁を沿って基板と接 触する下端部に降下するようになっている請求項 1記載のリフレタター。 2. The reflector as claimed in claim 1, wherein the brazing material is melted when bonded to the substrate, and the melted brazing material descends along the outer wall to a lower end portion contacting the substrate.
[5] 基板に接触する下端部が、基板に対して略線接触するようなエッジ形状となって 、る 請求項 4記載のリフレタター。 [5] The reflector as set forth in claim 4, wherein the lower end portion in contact with the substrate has an edge shape so as to be in substantially line contact with the substrate.
[6] 基材に内周面側に形成され反射材料カゝらなる反射層が積層された請求項 1〜請求 項 5の!、ずれ力 1項に記載のリフレタター。 [6] The reflector according to any one of claims 1 to 5, wherein a reflective layer formed on the inner peripheral surface side of the base material and made of a reflective material is laminated.
[7] 反射層を構成する反射材料は、銀、銀—インジウム 錫合金、銀—ガリウム合金、口 ジゥムのいずれかである請求項 6記載のリフレタター。 7. The reflector according to claim 6, wherein the reflective material constituting the reflective layer is any one of silver, a silver-indium tin alloy, a silver-gallium alloy, and a mouthpiece.
[8] 基材は、コバール、銅、銅合金、アルミニウムの!/、ずれかよりなる請求項 6又は請求 項 7記載のリフレタター。 [8] The reflector according to [6] or [7], wherein the base material is made of Kovar, copper, copper alloy, or aluminum!
[9] 請求項 1〜請求項 8のいずれか 1項に記載のリフレタターを複数連結させてなるリフレ クタ一。 [9] A reflector formed by connecting a plurality of reflectors according to any one of claims 1 to 8.
[10] 請求項 1〜請求項 9のいずれか 1項に記載のリフレタターの製造方法であって、 反射材料とろう材カもなるクラッド材、又は、基材と反射材料とろう材とからなるクラッ ド材に、パンチ又はダイを押圧する絞り加工又はプレス加工して成形加工する工程を
有する方法。 [10] The method of manufacturing a reflector according to any one of claims 1 to 9, comprising a clad material that also serves as a reflective material and a brazing material, or a base material, a reflective material, and a brazing material. A process of forming by pressing or punching a clad material to press a punch or die. How to have.
請求項 1〜請求項 9のいずれか 1項に記載のリフレタターを備える発光デバイス。
A light-emitting device comprising the reflector according to any one of claims 1 to 9.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007509188A JP4823214B2 (en) | 2005-03-22 | 2006-03-08 | REFLECTOR FOR LIGHT EMITTING ELEMENT, MANUFACTURING METHOD THEREOF, AND LIGHT EMITTING DEVICE HAVING THE REFLECTOR |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-081503 | 2005-03-22 | ||
JP2005081503 | 2005-03-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006100917A1 true WO2006100917A1 (en) | 2006-09-28 |
Family
ID=37023591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/304477 WO2006100917A1 (en) | 2005-03-22 | 2006-03-08 | Light emitting element reflector, manufacturing method thereof, and light emitting device using the reflector |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP4823214B2 (en) |
WO (1) | WO2006100917A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008135588A (en) * | 2006-11-29 | 2008-06-12 | Nichia Chem Ind Ltd | Support for light-emitting device, and light-emitting device using the same |
JP2014526615A (en) * | 2011-09-14 | 2014-10-06 | エクスタリック コーポレイション | Coated products, electrodeposition baths, and related systems |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101626459B1 (en) * | 2014-12-22 | 2016-06-01 | 델코(주) | Method for manufacturing metallic reflector for led package |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5961082A (en) * | 1982-09-30 | 1984-04-07 | Toshiba Corp | Light emitting device |
JPH0278102A (en) * | 1987-12-24 | 1990-03-19 | Mitsubishi Cable Ind Ltd | Light emitting diode lighting unit |
JPH11340378A (en) * | 1998-05-22 | 1999-12-10 | Sanken Electric Co Ltd | Manufacture of semiconductor light emitting device |
JP2001144333A (en) * | 1999-11-10 | 2001-05-25 | Sharp Corp | Light-emitting device and manufacturing method therefor |
JP2001203395A (en) * | 2000-01-20 | 2001-07-27 | Sanyo Electric Co Ltd | Hybrid integrated circuit device |
JP2002359403A (en) * | 2001-05-31 | 2002-12-13 | Nichia Chem Ind Ltd | Light-emitting device |
JP2004335518A (en) * | 2003-04-30 | 2004-11-25 | Sumitomo Metal Electronics Devices Inc | Packages for housing light emitting element |
JP2004343070A (en) * | 2003-04-21 | 2004-12-02 | Kyocera Corp | Light emitting device and lighting system |
JP2005159058A (en) * | 2003-11-26 | 2005-06-16 | Kyocera Corp | Light emitting device |
-
2006
- 2006-03-08 JP JP2007509188A patent/JP4823214B2/en active Active
- 2006-03-08 WO PCT/JP2006/304477 patent/WO2006100917A1/en active Application Filing
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5961082A (en) * | 1982-09-30 | 1984-04-07 | Toshiba Corp | Light emitting device |
JPH0278102A (en) * | 1987-12-24 | 1990-03-19 | Mitsubishi Cable Ind Ltd | Light emitting diode lighting unit |
JPH11340378A (en) * | 1998-05-22 | 1999-12-10 | Sanken Electric Co Ltd | Manufacture of semiconductor light emitting device |
JP2001144333A (en) * | 1999-11-10 | 2001-05-25 | Sharp Corp | Light-emitting device and manufacturing method therefor |
JP2001203395A (en) * | 2000-01-20 | 2001-07-27 | Sanyo Electric Co Ltd | Hybrid integrated circuit device |
JP2002359403A (en) * | 2001-05-31 | 2002-12-13 | Nichia Chem Ind Ltd | Light-emitting device |
JP2004343070A (en) * | 2003-04-21 | 2004-12-02 | Kyocera Corp | Light emitting device and lighting system |
JP2004335518A (en) * | 2003-04-30 | 2004-11-25 | Sumitomo Metal Electronics Devices Inc | Packages for housing light emitting element |
JP2005159058A (en) * | 2003-11-26 | 2005-06-16 | Kyocera Corp | Light emitting device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008135588A (en) * | 2006-11-29 | 2008-06-12 | Nichia Chem Ind Ltd | Support for light-emitting device, and light-emitting device using the same |
JP2014526615A (en) * | 2011-09-14 | 2014-10-06 | エクスタリック コーポレイション | Coated products, electrodeposition baths, and related systems |
Also Published As
Publication number | Publication date |
---|---|
JP4823214B2 (en) | 2011-11-24 |
JPWO2006100917A1 (en) | 2008-09-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4451859B2 (en) | High power LED package | |
JP4963839B2 (en) | Light emitting device | |
CN1212676C (en) | Light source device using LED, and method of producing same | |
US7795053B2 (en) | Light-emitting device manufacturing method and light-emitting device | |
JP4617902B2 (en) | Light emitting device and method for manufacturing light emitting device | |
JP4791487B2 (en) | Semiconductor device mounting substrate, semiconductor device using the same, and method of manufacturing semiconductor device mounting substrate | |
JP4865525B2 (en) | SML type light emitting diode lamp element and manufacturing method thereof | |
JP2007201420A (en) | Semiconductor light-emitting device, semiconductor light-emitting element, and method of manufacturing semiconductor light-emitting device | |
CN102077371A (en) | Leadframe, method for manufacturing the leadframe, and semiconductor light emitting device using the leadframe | |
US7723738B2 (en) | Semiconductor light emitting element and semiconductor light emitting device | |
US20090246899A1 (en) | Method of manufacturing light emitting diode | |
JP2006086176A (en) | Sub-mount for led and its manufacturing method | |
JP6492645B2 (en) | Semiconductor device and manufacturing method of semiconductor device | |
JP2006185967A (en) | Light emitting device storage package, light emitting device and lighting device | |
KR20110011537A (en) | Method for fabricating of led heat-radiating substrate and structure for the same | |
TW201236228A (en) | Semiconductor chip assembly with post/base/post heat spreader and asymmetric posts | |
JP4037404B2 (en) | Light emitting element mounting substrate and manufacturing method thereof | |
CN112585825A (en) | Diode laser assembly and method for manufacturing a diode laser assembly | |
WO2006100917A1 (en) | Light emitting element reflector, manufacturing method thereof, and light emitting device using the reflector | |
CN100388513C (en) | Light emitting device, package structure thereof and manufacturing method thereof | |
JP2011082362A (en) | Metal substrate for light-emitting diode, light-emitting diode, and method of manufacturing the same | |
JPH06283807A (en) | Stack laser | |
US10847702B2 (en) | Semiconductor module | |
JP2007251154A (en) | Method for forming light emitting diode reflector, structure thereof, and light emitting diode mounting device using reflector | |
JP2002359425A (en) | Sub-mount and semiconductor device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2007509188 Country of ref document: JP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
NENP | Non-entry into the national phase |
Ref country code: RU |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 06715397 Country of ref document: EP Kind code of ref document: A1 |