WO2011136236A1 - リードフレーム、配線板、発光ユニット、照明装置 - Google Patents
リードフレーム、配線板、発光ユニット、照明装置 Download PDFInfo
- Publication number
- WO2011136236A1 WO2011136236A1 PCT/JP2011/060193 JP2011060193W WO2011136236A1 WO 2011136236 A1 WO2011136236 A1 WO 2011136236A1 JP 2011060193 W JP2011060193 W JP 2011060193W WO 2011136236 A1 WO2011136236 A1 WO 2011136236A1
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- WIPO (PCT)
- Prior art keywords
- light emitting
- unit
- heat transfer
- led chip
- metal plate
- Prior art date
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- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
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- 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
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- 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
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- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0271—Arrangements for reducing stress or warp in rigid printed circuit boards, e.g. caused by loads, vibrations or differences in thermal expansion
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
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- H05K1/056—Insulated conductive substrates, e.g. insulated metal substrate the metal substrate being covered by an organic insulating layer
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- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10106—Light emitting diode [LED]
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- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/20—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by affixing prefabricated conductor pattern
- H05K3/202—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by affixing prefabricated conductor pattern using self-supporting metal foil pattern
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S362/00—Illumination
- Y10S362/80—Light emitting diode
Definitions
- the present invention relates to a lead frame, a wiring board, a light emitting unit, and a lighting device.
- a heat sink 160, an LED chip 161 mounted on the heat sink 160, and the LED chip 161 and the heat sink 160 are electrically connected to each other through bonding wires 164a and 164b, respectively.
- the pair of lead portions 330, the resin package 400 that integrally holds the heat sink 100 and each lead portion 330 and exposes the LED chip 161 on the front surface side, and a light transmissive resin on the front surface side of the resin package 400 The light emitting device 100 including the attachment lens 560 that is mounted so as to cover the portion 550 is described.
- Patent Document 1 describes a lead frame 300 having a configuration shown in FIG. 61 as a lead frame 300 used for manufacturing the light emitting device 100 of FIG.
- the lead frame 300 includes a pair of long parallel frame portions 310 formed in parallel to each other and a connecting frame portion 320 that connects the opposing parallel frame portions 310 that are arranged at equal intervals in the longitudinal direction of the parallel frame portion 310. And a pair of lead portions 330 that extend in the direction of approaching each other from the center portion of the adjacent connecting frame portions 320 and that end portions face each other at a predetermined distance, and a pair of parallel portions.
- a support frame portion 340 extending from the frame portion 310 toward the end portion of each lead portion 330 is integrally formed.
- a lighting fixture L including a light source device 101, a power supply device 102 that supplies operating power to the light source device 101, and a fixture main body 103 that stores them is proposed.
- Patent Document 2 Japanese Patent Publication No. 2007-35890: Patent Document 2.
- the light source device 101 includes a light source block BK and a case 106 that houses the light source block BK. As shown in FIG. 63, the light source block BK is surface-mounted by reflow soldering on the long printed circuit board 110 on which the wiring pattern 111 is formed on one side (front side) and the wiring pattern 111 on the printed circuit board 110. A plurality of light emitting diodes 4A to 4L.
- the light-emitting diodes 4A to 4L are so-called surface-mounting high-intensity white light-emitting diodes. The mounting surface is exposed.
- Patent Document 2 describes that the light emitting diodes 4A to 4L are arranged at substantially equal intervals in the longitudinal direction of the printed circuit board 110 and used as a pseudo line light source, as shown in FIG. 64A. Yes.
- the printed circuit board 110 is a single-sided mounting board formed in the shape of a long rectangular plate. On the left end side, the output power lines 107a to 107c of the power supply apparatus 102 are connected to the wiring pattern 111. Three through holes 110a for connecting (see FIG. 62A) are provided. Further, screw holes 110b into which fixing screws S1 (see FIG. 62) for fixing the printed circuit board 110 to the instrument main body 103 are screwed are provided at both ends and the center of the printed circuit board 110 in the longitudinal direction. ing.
- Examples of the material of the printed circuit board 110 include a paper base copper-clad laminate such as a paper base epoxy resin copper-clad laminate, a glass cloth base copper-clad laminate such as a glass cloth base epoxy resin copper-clad laminate, and a glass nonwoven fabric. Glass nonwoven copper-clad laminates such as substrate epoxy resin copper-clad laminates are described.
- a wiring pattern 111 to which the light emitting diodes 4A to 4L and the like are connected is formed on the surface side of the printed board 110.
- the wiring pattern 111 is formed using a conductive material such as copper foil.
- a series circuit of light emitting diodes 4A to 4F and a series circuit of light emitting diodes 4G to 4L are connected in parallel in the forward direction.
- solder resist 112 (see FIG. 64A) is formed.
- a warp preventing portion 113 is formed on the other surface side (back surface side) of the printed circuit board 110. As shown in FIG. 63B, the warpage preventing portion 113 is formed in a shape substantially the same as the wiring pattern 111 using a copper foil. That is, the warp preventing portion 113 is a dummy wiring pattern having substantially the same shape as the wiring pattern 111.
- the light emitting diodes 4A to 4L are surface-mounted on the printed circuit board 110, which is performed by reflow soldering.
- the thermal expansion coefficient of the wiring pattern 111 is smaller than the thermal expansion coefficient of the printed circuit board 110.
- the thermal expansion of the printed circuit board 110 is suppressed, and a force that warps to the surface side is generated on the printed circuit board 110.
- the printed circuit board 110 is formed with the warpage prevention portion 113 having substantially the same shape as the wiring pattern 111 on the back surface side, the printed circuit board is caused by the difference in thermal expansion coefficient between the warpage prevention portion 113 and the printed circuit board 110.
- Thermal expansion is also suppressed on the back side of 110, and a force that warps the back side is generated on printed circuit board 110. Therefore, in the printed circuit board 110, thermal expansion is suppressed on both surfaces (front surface and back surface). As a result, warpage due to the difference in thermal expansion coefficient between the wiring pattern 111 and the printed circuit board 110, and the warpage preventing unit 113 and the printed circuit board 110 are suppressed. The warpage caused by the difference in the thermal expansion coefficients of each other cancels each other, and the warpage of the printed circuit board 110 is reduced. Even when the temperature of the printed circuit board 110 decreases after passing through the reflow furnace, the warpage of the printed circuit board 110 is reduced for the same reason as described above.
- the case 106 in which the light source block BK is accommodated is formed in a long box shape having a lower surface opened using a synthetic resin having translucency such as acrylic resin, and the lower edge of both inner side surfaces in the longitudinal direction. Supporting pieces 106a and 106a for supporting the printed circuit board 110 housed in the case 106 are integrally projected on the part.
- a sealing material made of a resin having translucency such as a silicone resin is used to illuminate the case 106 as a whole and to improve the heat dissipation and waterproofness of the light source block BK. P is filled, heated and cured.
- the antireflection portion 113 is coated with silk printing ink so as to cover the entire back surface of the printed circuit board 110 by silk printing (silk screen printing). It is described that it can be used. Further, in Patent Document 2, as the warpage preventing portion 113, the same material as the wiring pattern 111 or a metal material having substantially the same thermal expansion coefficient as the wiring pattern 111 is used to cover the entire back surface side of the printed circuit board 110. It is described that one formed in the above may be used. In this case, it is described that it is possible to improve the heat dissipation of heat-generating components such as the light-emitting diodes 4A to 4L mounted on the printed circuit board 110.
- the light source device having the configuration shown in FIG. 65 is provided on the first visible light LED chip 103, the first transparent substrate 161 on which the first visible light LED chip 103 is mounted, and the first transparent substrate 161. And a first transparent electrode 171 that supplies power to one visible light LED chip 103.
- the light source device includes a second visible light LED chip 104, a second transparent substrate 162 on which the second visible light LED chip 104 is mounted so as to face the mounting surface side of the first transparent substrate 161, And a second transparent electrode 172 that is provided on the second transparent substrate 162 and supplies power to the second visible light LED chip 104.
- the light from the first visible light LED chip 103 can be extracted to the outside through the second transparent electrode 172 and the second transparent substrate 162, and the second visible light can be extracted.
- Light from the LED chip 104 can be extracted outside through the first transparent electrode 171 and the first transparent substrate 161.
- the light emitting unit main body 602 of the lighting device 600 includes a pair of mounting substrates 604 and 604 and a spacer 611 that integrally connects and fixes the mounting substrates 604 and 604 to form a gap 610 between the mounting substrates 604 and 604. Yes.
- the light emitting unit main body 602 is attached to the surface side of the mounting substrates 604 and 604 and the plastic wiring substrates 608 and 608 for the LED light emitter 603 attached to and integrally attached to the surfaces of the mounting substrates 604 and 604.
- the mounting substrate 604 has a long thin strip shape, and an aluminum extrusion mold is used.
- the wiring board 608 has a plurality of LED light emitters 603 arranged at predetermined intervals.
- a plurality of light emitting devices 100 are mounted on one wiring board to constitute, for example, an LED unit (light emitting unit) connected in series.
- an LED unit light emitting unit
- a metal base printed wiring board as the wiring board.
- the pair of lead portions 330 of each light emitting device 100 may be soldered to a wiring pattern made of a copper foil pattern of a metal base printed wiring board of the wiring board.
- the light emitting unit such as the light source block BK described above, it is possible to reduce the warp of the printed circuit board 110.
- the heat generated in the light emitting diodes 4A to 4L is dissipated through the printed circuit board 110.
- the light output of each of the light emitting diodes 4A to 4L is increased.
- the temperature rise of the light emitting diodes 4A to 4L cannot be sufficiently suppressed.
- the increase in the light output is limited.
- heat generated in the first visible light LED chip 103 is radiated mainly through the first transparent electrode 171 and the first transparent substrate 161, and the second visible light LED chip.
- the heat generated in 104 is considered to be dissipated mainly through the second transparent electrode 172 and the second transparent substrate 162. Therefore, in this light source device, for example, when the light output of the entire light source device is increased by increasing the light output of the first visible light LED chip 103 and the second visible light LED chip 104, There is a concern that the temperature rise of the first visible light LED chip 103 and the second visible light LED chip 104 cannot be sufficiently suppressed. For this reason, in the light source device having the configuration of FIG. 65, there is a possibility that the increase in the light output is limited.
- the heat generated in the LED light emitter 603 is mainly radiated through the wiring board 608 and the mounting board 604.
- the LED light emitting body when the light output of the entire light emitting unit main body 602 and the entire lighting device 600 is increased by increasing the light output of the LED light emitting body 603, the LED light emitting body.
- the temperature increase of 603 cannot be sufficiently suppressed.
- the high output of a light output may be restrict
- the present invention has been made in view of the above reasons, and its object is to achieve a high output light output and to reduce the cost of a light emitting unit using a plurality of solid light emitting elements connected in series.
- An object of the present invention is to provide a frame, a wiring board, a light emitting unit and a lighting device capable of increasing the light output.
- the lead frame of the present invention is a lead frame formed by using a metal plate and having a desired wiring pattern supported inside a 1 pitch outer frame portion via a support piece, the wiring pattern being a solid-state light emitting device.
- a heat sink extending from the die pad so as to surround the die pad, and one electrode electrically connected to the other electrode of the solid state light emitting device electrically connected to the heat sink
- a plurality of unit units each having a lead are provided, and the lead of one unit unit of the unit units adjacent to each other and the heat sink of the other unit unit are connected and electrically connected in series.
- the lead is disposed inside a cut groove formed from the outer peripheral edge of the heat sink toward the die pad.
- the plurality of unit units are preferably arranged along the length direction of the outer frame portion.
- the wiring pattern includes a wiring arranged on the side of the heat sink across the plurality of unit units, and the wiring is one unit at one end in the length direction of the outer frame portion. It is preferable to be connected to and electrically connected to the lead of the unit.
- the pattern includes a wiring disposed on a side of the heat sink across the plurality of unit units, and the wiring is the unit unit at one end in the length direction of the outer frame portion. It is preferable that the lead is connected and electrically connected.
- the wiring pattern includes wiring arranged on the side of the heat sink across the plurality of unit units.
- the plurality of unit units are preferably arranged so as to surround the center of the region surrounded by the outer frame portion.
- the wiring board of the present invention is formed using a first metal plate and has a module having a wiring pattern capable of serial connection of a plurality of solid state light emitting devices arranged on the main surface side, and is arranged on the back side of the module.
- the second metal plate is electrically insulated and thermally conductive and is interposed between the module and the second metal plate to thermally couple the wiring pattern and the second metal plate.
- the wiring pattern includes a die pad for mounting the solid-state light emitting element, a heat sink extending from the die pad so as to surround the die pad, and one electrode electrically connected to the heat sink.
- a plurality of unit units each including a lead electrically connected to the other electrode of the solid state light emitting device, and the leads of one of the unit units adjacent to each other; And the heat sink of the other unit unit are connected and electrically connected in series, and the module is a holding unit made of an insulating material that holds the die pad, the heat sink, and the lead for each unit unit. It is characterized by providing.
- the module is provided with a concavo-convex structure portion that improves adhesion to the holding portion at a side edge of the wiring pattern.
- a first plating layer made of a metal material having higher oxidation resistance and corrosion resistance than the first metal plate is formed on the back surface of the wiring pattern to enhance adhesion with the insulating layer. It is preferable to be made.
- a second surface made of a metal material having higher oxidation resistance and corrosion resistance than the first metal plate is formed on a main surface of a portion electrically connected to the die pad and the solid state light emitting device. It is preferable that a plating layer is formed.
- the material of the first metal plate is preferably Cu
- the second plating layer is preferably a laminated film of a Ni film, a Pd film, and an Au film.
- the wiring board includes a connecting piece for connecting the lead of one of the unit units adjacent to the unit unit and the heat sink of the other unit unit, and a space between the connecting piece and the insulating layer.
- the connecting piece includes a stress relaxation portion bent so as to relieve stress acting on the wiring pattern due to a difference in linear expansion coefficient between the first metal plate and the second metal plate. It is preferable.
- the solid light emitting element is mounted on each die pad of the wiring board, and the solid light emitting element is provided with the one electrode on one surface side in the thickness direction and on the other surface side.
- the other electrode is provided, and the one electrode is electrically connected to the heat sink via the die pad and the other electrode is electrically connected to the lead via a wire. It is characterized by that.
- the solid light emitting element is mounted on each die pad of the wiring board, and the solid light emitting element is provided with the one electrode and the other electrode on one surface side in the thickness direction.
- the one electrode is electrically connected to the heat sink via a first wire
- the other electrode is electrically connected to the lead via a second wire.
- an optical member for controlling the light distribution of the light emitted from the solid light emitting element for each unit unit, an optical member for controlling the light distribution of the light emitted from the solid light emitting element, and a dome-shaped optical member that houses the solid light emitting element between the wiring board and the light emitting unit.
- a sealing portion made of a first light-transmitting material filled in a space surrounded by the optical member and the wiring board and sealing the solid-state light-emitting element, and radiated from the solid-state light-emitting element and sealed
- a phosphor that emits light of a color different from the emission color of the solid-state light emitting element and a second translucent material, and is arranged so as to surround the optical member.
- a dome-shaped color conversion member provided, wherein the holding portion of the wiring board is outside the optical member and overflows when the optical member is fixed to the wiring board.
- Annular weir to dampen volatile materials The dam portion extends inward from the inner peripheral surface of the dam portion, and a plurality of claw portions that center the center of the dam portion and the central axis of the optical member are spaced apart in the circumferential direction. It is preferable that it is provided and also serves as a positioning portion for the color conversion member.
- the present application includes an invention of a light emitting unit that can improve heat dissipation and can increase the light output.
- the light emitting unit includes a mounting substrate and a plurality of solid light emitting elements disposed on one surface side of the mounting substrate, and the mounting substrate is formed of a first metal plate, and the solid light emitting elements are arranged on one surface.
- a heat transfer plate mounted on the side, a wiring pattern formed of a second metal plate, disposed on the other surface side of the heat transfer plate and electrically connected to the solid state light emitting element, and the heat transfer plate; And an insulating layer interposed between the wiring patterns.
- the insulating layer preferably contains a filler having a higher thermal conductivity than the thermosetting resin in the thermosetting resin.
- the solid light emitting element is preferably an LED chip.
- the heat transfer plate is such that the first metal plate is an aluminum plate, and an aluminum film having a higher purity than the aluminum plate is laminated on the side opposite to the insulating layer side of the aluminum plate, It is preferable that an aluminum film is laminated with a reflection enhancing film made of two kinds of dielectric films having different refractive indexes.
- the light-emitting unit includes a color conversion unit including a phosphor and a translucent material that is excited by light emitted from the LED chip and emits light having a color different from that of the LED chip.
- the part is preferably in contact with the heat transfer plate.
- each of the LED chips is provided with a first electrode and a second electrode on one surface side in the thickness direction, and each of the first electrode and the second electrode is connected with the wire via a wire.
- the heat transfer plate is electrically connected to a wiring pattern, and has a through-hole through which each of the wires passes.
- the heat transfer plate has an elongated shape, the solid light emitting element is arranged along the longitudinal direction of the heat transfer plate, and the first metal plate is more than the second metal plate. It is preferable to provide a long base substrate disposed on the opposite side of the wiring pattern from the heat transfer plate side.
- the base substrate is preferably made of a resin substrate in which a filler having a higher thermal conductivity than the resin is mixed with a resin.
- the base substrate is formed of a third metal plate made of the same material as the first metal plate, and the same material as the first insulating layer, which is the insulating layer, between the base substrate and the wiring pattern. It is preferable that a second insulating layer made of is interposed.
- the present application includes an invention of a lighting device that can improve heat dissipation and can increase the light output.
- the illumination device includes the light emitting unit.
- the present application includes inventions of a light emitting unit and a lighting device that can improve heat dissipation and can increase the light output.
- the light emitting unit is formed of the first metal plate and is disposed apart from each other in the thickness direction, and on one surface side opposite to the mutual facing surface of each of the heat transfer plates.
- the solid light emitting element is preferably an LED chip.
- the heat transfer plate is such that the first metal plate is an aluminum plate, and an aluminum film having a higher purity than the aluminum plate is laminated on the side opposite to the insulating layer side of the aluminum plate, It is preferable that an aluminum film is laminated with a reflection enhancing film made of two kinds of dielectric films having different refractive indexes.
- the light-emitting unit includes a color conversion unit including a phosphor and a translucent material that is excited by light emitted from the LED chip and emits light having a color different from that of the LED chip.
- the part is preferably in contact with the heat transfer plate.
- each of the LED chips is provided with a first electrode and a second electrode on one surface side in the thickness direction, and each of the first electrode and the second electrode is connected with the wire via a wire.
- the heat transfer plate is electrically connected to a wiring pattern, and has a through-hole through which each of the wires passes.
- the illumination device includes the light emitting unit.
- FIG. 1A is a schematic perspective view of one pitch of the lead frame in the first embodiment
- FIG. 1B is a schematic plan view of a main part of the lead frame in the first embodiment
- FIG. 1C is a schematic plan view of a unit unit of the lead frame in the first embodiment.
- It is. 3 is a schematic plan view showing an example of mounting LED chips on the lead frame in Embodiment 1.
- FIG. FIG. 3 is a schematic plan view illustrating an example of an LED chip on a lead frame in the first embodiment.
- 5 is a schematic perspective view of a metal plate used for manufacturing the lead frame in Embodiment 1.
- FIG. 5A is a schematic perspective view of the wiring board according to the first embodiment
- FIG. 5B is a schematic plan view of a main part of the wiring board according to the first embodiment.
- 3 is a schematic cross-sectional view illustrating an example of mounting LED chips and Zener diodes on the wiring board in Embodiment 1.
- FIG. FIG. 7A is a schematic perspective view in which a part of the LED unit in Embodiment 1 is disassembled and broken
- FIG. 7B is a schematic plan view of an essential part.
- 3 is a schematic cross-sectional view of an LED unit in Embodiment 1.
- FIG. FIG. 5 is a schematic cross-sectional view of another configuration example of the LED unit in Embodiment 1.
- FIG. 10A is a schematic perspective view for explaining the manufacturing method of the LED unit in the first embodiment, and FIG.
- FIG. 10B is a schematic plan view of the main part for explaining the manufacturing method of the LED unit in the first embodiment.
- FIG. 11A is a schematic perspective view for explaining the manufacturing method of the LED unit in the first embodiment
- FIG. 11B is a schematic plan view of a main part for explaining the manufacturing method of the LED unit in the first embodiment.
- FIG. 12A is a schematic perspective view for explaining the manufacturing method of the LED unit in the first embodiment
- FIG. 12B is a schematic plan view of the main part for explaining the manufacturing method of the LED unit in the first embodiment.
- 3 is a schematic plan view showing an example of mounting LED chips on the lead frame in Embodiment 1.
- FIG. 14A is a main part schematic plan view showing another configuration example of the wiring board in the first embodiment
- FIG. 14B is a main part schematic sectional view showing another configuration example of the wiring board in the first embodiment.
- 6 is a schematic plan view illustrating an example of mounting LED chips on another configuration example of the wiring board according to Embodiment 1.
- FIG. 6 is a schematic perspective view illustrating still another configuration example of the wiring board according to Embodiment 1.
- FIG. 17A is a schematic perspective view showing another configuration example of the wiring board in the first embodiment
- FIG. 17B is a perspective view of a main part showing another configuration example of the wiring board in the first embodiment.
- FIG. 18A is a schematic perspective view of two pitches of the lead frame in the second embodiment
- FIG. 18B is a schematic plan view of a main part of the lead frame in the second embodiment.
- FIG. 19A is a schematic perspective view for explaining the manufacturing method of the LED unit in the second embodiment
- FIG. 19B is a schematic plan view of the main part for explaining the manufacturing method of the LED unit in the second embodiment.
- FIG. 20A is a schematic perspective view for explaining the manufacturing method of the LED unit in the second embodiment
- FIG. 20B is a schematic plan view of the main part for explaining the manufacturing method of the LED unit in the second embodiment.
- 10 is a schematic perspective view for explaining a method for manufacturing the LED unit in Embodiment 2.
- FIG. 10 is a schematic perspective view for explaining a method for manufacturing the LED unit in Embodiment 2.
- FIG. 10 is a schematic perspective view for explaining a method for manufacturing the LED unit in Embodiment 2.
- FIG. 10 is a schematic perspective view for explaining a method for manufacturing the LED unit in Embodiment 2.
- FIG. 10 is a schematic perspective view for explaining a method for manufacturing the LED unit in Embodiment 2.
- FIG. 10 is a schematic perspective view for explaining
- FIG. 10 is a schematic perspective view for explaining a method for manufacturing the LED unit in Embodiment 2.
- FIG. FIG. 25A is a schematic perspective view of a main part of a light emitting unit according to Embodiment 3
- FIG. 25B is a perspective view of a main part of the light emitting unit according to Embodiment 3 partially broken. It is the schematic perspective view which a part of light emitting unit of Embodiment 3 fractured. It is a principal part schematic sectional drawing of the light emission unit of Embodiment 3.
- FIG. 6 is a schematic perspective view of a mounting board in a light emitting unit according to Embodiment 3.
- FIG. FIG. 6 is a schematic exploded perspective view of a mounting board in the light emitting unit of Embodiment 3.
- FIG. 6 is a perspective view of a main part of a mounting board in a light emitting unit according to Embodiment 3.
- FIG. It is explanatory drawing of the manufacturing method of the mounting substrate in the light emitting unit of Embodiment 3.
- FIG. It is explanatory drawing of the manufacturing method of the mounting substrate in the light emitting unit of Embodiment 3.
- FIG. It is a principal part schematic sectional drawing of the other structural example of the light emission unit of Embodiment 3.
- FIG. FIG. 10 is a schematic cross-sectional view of a main part of still another configuration example of the light emitting unit according to Embodiment 3.
- FIG. 10 is a schematic cross-sectional view of a main part of another configuration example of the light emitting unit of Embodiment 3.
- FIG. 6 is a schematic exploded perspective view of a mounting board in a light emitting unit of Embodiment 4.
- FIG. 10 is a schematic exploded perspective view of a light emitting unit according to a fifth embodiment. It is a principal part schematic perspective view of the illuminating device of Embodiment 5.
- FIG. It is a principal part schematic exploded perspective view of the illuminating device of Embodiment 5.
- FIG. It is principal part explanatory drawing of the illuminating device of Embodiment 5.
- FIG. 10 is a schematic cross-sectional view of a main part of another configuration example of the light emitting units of Embodiments 3 to 5.
- FIG. 10 is a schematic perspective view of a main part of another configuration example of the light emitting units of Embodiments 3 to 5.
- It is a schematic perspective view of the light emitting unit of Embodiment 6.
- 46A is a schematic perspective view of a main part of a double-sided light emitting unit according to Embodiment 7
- FIG. 46B is a perspective view of an essential part of the double-sided light emitting unit according to Embodiment 7 partially broken.
- It is a schematic perspective view of the double-sided light emitting unit of Embodiment 7.
- FIG. 10 is a schematic exploded perspective view of a mounting board in a double-sided light emitting unit of Embodiment 7. It is a schematic sectional drawing of the double-sided light emission unit of Embodiment 7. It is a principal part perspective view of the mounting substrate in the double-sided light emitting unit of Embodiment 7. It is explanatory drawing of the manufacturing method of the mounting substrate in the double-sided light emission unit of Embodiment 7. It is explanatory drawing of the manufacturing method of the mounting substrate in the double-sided light emission unit of Embodiment 7. It is explanatory drawing of the manufacturing method of the mounting substrate in the double-sided light emission unit of Embodiment 7. It is a schematic sectional drawing of the other structural example of the double-sided light emission unit of Embodiment 7. FIG.
- FIG. 10 is a schematic cross-sectional view of still another configuration example of the double-sided light emitting unit of Embodiment 7. It is a schematic sectional drawing of another structural example of the double-sided light emission unit of Embodiment 7.
- FIG. 12 is a perspective view of a principal part of another configuration example of the double-sided light emitting unit of Embodiment 7 with a part broken away. It is a schematic perspective view of the illuminating device of Embodiment 7. It is a schematic perspective view of the double-sided light emitting unit of Embodiment 8. It is a schematic exploded perspective view of the illuminating device of Embodiment 8. It is a schematic sectional drawing which shows the conventional light-emitting device.
- FIG. 62A is a cross-sectional view of a part of a conventional lighting fixture
- FIG. 62B is a top view of a part of the lighting fixture of the conventional example
- FIG. 63A is a front view of a printed circuit board used for a conventional lighting fixture
- FIG. 63B is a back view of the printed circuit board used for the conventional lighting fixture
- 64A is a front view of a printed circuit board on which a light emitting diode is mounted
- FIG. 64B is a rear view of the printed circuit board showing another example.
- It is a schematic block diagram of the light source device of a prior art example. It is principal part sectional drawing of the illuminating device of a prior art example. It is the top view which a part of mounting substrate in the light emission part main body of the prior art example cut away.
- the lead frame 230 in the present embodiment is a lead frame 230 in which a desired pattern 233 is supported via a support piece 232 inside a 1 pitch outer frame portion 231.
- the lead frame 230 is formed by using a strip-shaped metal plate 203 (see FIG. 4), and the outer frame portion 231 is formed in a rectangular frame shape, and the outer peripheral shape is an elongated rectangular shape.
- . 4 shows only a portion corresponding to one pitch of the lead frame 230, the belt-like metal plate 203 may be constituted by a part of a metal hoop material.
- the pattern 233 constitutes a wiring pattern.
- the pattern 233 of the lead frame 230 includes a die pad 234 on which the LED chip 210 (see FIGS. 2 and 3) having a pair of electrodes is mounted, a heat sink 235 extending from the die pad 234 so as to surround the die pad 234, and a pair
- the unit unit 233a having a lead 236 electrically connected to the other electrode of the LED chip 210, one of which is electrically connected to the heat sink 235 (only the unit unit 233a in FIG. 1C)
- the lead 236 of one unit unit 233a of the unit units 233a adjacent to each other and the heat sink 235 of the other unit unit 233a are connected and electrically connected in series.
- the LED chip 210 constitutes a solid light emitting element.
- the lead 236 of one unit unit 233a and the heat sink 235 of the other unit unit 233a are connected via a connecting piece 237 that is wider than the lead 236.
- each of the unit units 233a of the lead frame 230 having a pair of electrodes formed on one side in the thickness direction as the LED chip 210 for example, as shown in FIG.
- One electrode may be electrically connected to the heat sink 235 via the bonding wire 214, and the other electrode of the LED chip 210 may be electrically connected to the lead 236 via the bonding wire 214.
- one electrode is electrically connected to the die pad 234 via the first bump, and the other electrode is connected to the lead 236 via the second bump.
- the bonding wire 214 forms a wire.
- the LED chip 210 having electrodes formed on both surfaces in the thickness direction is mounted, for example, as shown in FIG. 3, one electrode of the LED chip 210 is connected to the heat sink 235 via the die pad 234. And the other electrode of the LED chip 210 may be electrically connected to the lead 236 through the bonding wire 214.
- the number of unit units 233a per pitch is eight, but this number is not particularly limited and may be plural.
- a plurality of unit units 233a are arranged along the length direction of the outer frame portion 231 (left-right direction in FIG. 1B). Further, the pattern 233 of the lead frame 230 includes a linear wiring 238 disposed on the side of the heat sink 235 across the plurality of unit units 233a.
- the wiring 238 is electrically connected to the lead 236 of one unit unit 233a (the leftmost unit unit 233a in FIG. 1A) in the length direction of the outer frame portion 231 (that is, the arrangement direction of the unit units 233a). It is connected to the.
- the above-described lead 236 is disposed inside a cut groove 235 a formed from the outer peripheral edge of the heat sink 235 toward the die pad 234. Further, the lead frame 230 shown in FIG. 1 is provided with two leads 236 for each unit unit 233a, and the heat sink 235 is formed so that the two cut grooves 235a approach each other and the position of the center line is shifted. Has been.
- One lead 236 of the two leads 236 is formed in a straight line and is disposed inside one cut groove 235a.
- the other lead 236 includes a linear first portion disposed inside the other cut groove 235a and the end of the first portion opposite to the die pad 234 side to the connecting piece 237. And a second portion disposed along the outer edge of the heat sink 235.
- the metal plate 203 As a material of the metal plate 203 (see FIG. 4) which is the basis of the lead frame 230, copper having a relatively high thermal conductivity among the metal materials (the thermal conductivity of copper is about 398 W / m ⁇ K) is used. Although preferable, it is not limited to copper, and may be phosphor bronze, for example.
- the metal plate 203 may be made of a copper alloy (for example, 42 alloy).
- the thickness of the metal plate 203 is preferably set in the range of about 100 ⁇ m to 1500 ⁇ m, for example.
- the lead 236 may be disposed outside the heat sink 235 without providing the notch groove 235a in the heat sink 235.
- a cut groove 235a is provided in the heat sink 235 as shown in FIG. It is preferable to arrange the leads 236 so as to enter the groove 235a.
- FIG. 6 is a schematic cross-sectional view of a state in which the LED chip 210 and a Zener diode ZD described later are mounted on the wiring board 240.
- the wiring board 240 includes a module 241 having a pattern 233 that can be connected in series with a plurality of LED chips 210 that are formed using the lead frame 230 and arranged on the main surface side. That is, the wiring board 240 has a pattern 233 of the lead frame 230 formed using the metal plate 203 (hereinafter referred to as the first metal plate 203) shown in FIG.
- the pattern 233 of the wiring board 240 includes a plurality of unit units 233a including the die pad 234, the heat sink 235, and the leads 236, and the leads 236 and the other unit of one unit unit 233a of the unit units 233a adjacent to each other.
- a heat sink 235 of the unit 233a is connected and electrically connected in series.
- the module 241 of the wiring board 240 includes a holding portion 244 made of an insulating material that surrounds and holds the die pad 234, the heat sink 235, and the lead 236 for each unit unit 233a.
- the holding portion 244 is formed so as to cover the surface of the pattern 233 except for a part of each of the die pad 234, the lead 236, the heat sink 235, and the wiring 238.
- the holding portion 244 may be formed so as to expose at least the back surface of the pattern 233 and the mounting portion of the electronic components (LED chip 210, Zener diode ZD, connector CN described later, etc.). .
- the above-mentioned holding portion 244 is formed by injection molding (injection molding).
- an insulating material of the holding portion 244 a material having a small difference in linear expansion coefficient from the first metal plate 203 is preferable, and a liquid crystal polymer is used. Other resin materials such as, ceramics such as alumina may be used. Further, as the insulating material of the holding portion 244, a white material having a high reflectance with respect to the light emitted from the LED chip 210 is preferable.
- the wiring board 240 includes a second metal plate 242 disposed on the back side of the module 241 and an insulating layer 243 interposed between the module 241 and the second metal plate 242.
- the insulating layer 243 has electrical insulation and thermal conductivity, and has a function of thermally coupling the pattern 233 and the second metal plate 242.
- the second metal plate 242 functions as a heat radiating plate (heat transfer plate), and as the material of the second metal plate 242, a metal material having a high thermal conductivity such as copper or aluminum can be adopted. preferable.
- the thickness of the second metal plate 242 may be set, for example, in the range of about 0.5 mm to 10 mm.
- the thermal conductivity of aluminum is about 237 W / m ⁇ K.
- the insulating layer 243 described above contains a filler composed of a filler such as silica or alumina, and has a property of lowering viscosity and increasing fluidity when heated, and a plastic film (PET film).
- a filler composed of a filler such as silica or alumina
- PET film plastic film
- thermosetting the epoxy resin layer of a thermosetting sheet-like adhesive for example, an adhesive sheet TSA manufactured by Toray Industries, Inc.
- the epoxy resin layer of the sheet-like adhesive has properties of being electrically insulating and having high thermal conductivity, high fluidity during heating, and high adhesion to the uneven surface.
- each LED chip 210 to the second metal plate 242.
- the thermal resistance of the LED chip 210 can be reduced, variation in thermal resistance can be reduced, heat dissipation can be improved, and the temperature increase of the junction temperature of each LED chip 210 can be suppressed, so that the input power can be increased and the light output can be increased. Can be planned.
- the thickness of the epoxy resin layer described above is set to 100 ⁇ m, but this value is merely an example, and is not particularly limited. For example, the thickness may be appropriately set in the range of about 50 ⁇ m to 150 ⁇ m.
- the thermal conductivity of the epoxy resin layer is preferably 4 W / m ⁇ K or more.
- the second metal plate 242 the epoxy resin layer, and the module 241 may be appropriately pressed.
- the fixing performance between the module 241 and the second metal plate 242 decreases.
- the electrical insulation between the module 241 and the second metal plate 242 may be lowered. That is, there is a trade-off relationship between fixing performance and electrical insulation. Therefore, when the second metal plate 242 has a large heat capacity and cannot satisfy both the fixing performance and the electrical insulation requirements, for example, the two epoxy resin layers of the sheet adhesive are overlapped.
- one epoxy resin layer is cured at 170 ° C. to ensure electrical insulation and thermal conductivity
- the other epoxy resin layer is cured at 150 ° C. to ensure fixing performance and thermal conductivity. You can do it. More specifically, after one epoxy resin layer is fixed to one surface of the second metal plate 242 as an object at 170 ° C., the other epoxy resin layer and the module 241 are overlapped to overlap the other epoxy resin layer. May be cured at 150 ° C.
- the outer size that determines the outer peripheral shape of each of the insulating layer 243 and the second metal plate 242 is aligned with the outer size of the outer frame portion 231 of the lead frame 230, but it is not necessarily required to be aligned.
- the wiring board 240 is formed on the back surface of the pattern 233 with a first plating layer (made of a metal material having higher oxidation resistance and corrosion resistance than the first metal plate 203 and having high adhesion to the insulating layer 243 ( (Not shown) is formed.
- a first plating layer made of a metal material having higher oxidation resistance and corrosion resistance than the first metal plate 203 and having high adhesion to the insulating layer 243 (Not shown) is formed.
- the material of the first metal plate 203 is Cu, for example, Ni or the like may be employed as the material of the first plating layer.
- the wiring board 240 can suppress the oxidation and corrosion of the pattern 233 by suppressing the deterioration of the fixing performance between the pattern 233 and the insulating layer 243 by forming the first plating layer on the back surface of the pattern 233. It becomes possible to do. As a result, it is possible to suppress the temporal change in the thermal resistance between the die pad 234 and the heat sink 235 and the
- the module 241 is provided with a concavo-convex structure portion 239 (see FIG. 6) that improves the adhesion to the holding portion 244 at the side edge of the pattern 233.
- the lead frame 230 described above has the uneven structure portion 239 formed on the side edge of the pattern 233 at the time of manufacture.
- the concavo-convex structure portion 239 is formed by providing a step that reduces the thickness on at least one of both surfaces of the lead frame 230 in the thickness direction.
- a press working method or an etching method may be appropriately employed.
- the lead frame 230 is formed by patterning the first metal plate 203 by pressing or etching.
- the above-described module 241 can improve the adhesion between the pattern 233 and the holding portion 244 by providing the uneven structure portion 239 on the side edge of the pattern 233. Therefore, when the module 241 is cut from the lead frame 230, the holding portion 244 can be prevented from being peeled off or dropped from the pattern 233.
- the wiring board 240 is provided with the uneven structure portion 239 on the side edge of the pattern 233, thereby increasing the creepage distance between the LED chip 210 mounted on the die pad 234 and the second metal plate 242. be able to.
- the wiring board 240 can be mounted with a zener diode ZD in the pattern 233 where the die pad 234 and the LED chip 210 are electrically connected (the tip of the lead 236 to which the bonding wire 214 may be bonded).
- a second plating made of a metal material having higher oxidation resistance and corrosion resistance than the first metal plate 203 on the main surface of each of the parts, and a part on which a power supply connector CN described later can be mounted.
- a layer 247 (see FIG. 10B) is formed.
- the adhesion between the LED chip 210, the Zener diode ZD, the connector CN and the like is reduced due to the oxidation of the pattern 233, and the LED chip 210, the Zener diode ZD, and the connector CN are fixed due to the corrosion of the pattern 233. It is possible to suppress a decrease in performance.
- the second plating layer 247 radiates from the LED chip 210 if the second plating layer 247 is formed of a laminated film of a Ni film, a Pd film, and an Au film, for example. Part of the emitted light can be reflected by the second plating layer 247, so that the light extraction efficiency can be improved.
- the wiring board 240 is made of a Ni film that is formed at the same time as the Ni film that is the lowermost layer of the second plating layer 247 on the main surface side of the pattern 233 where the second plating layer 247 is not formed.
- a third plating layer (not shown) is formed.
- the second metal plate 242 is formed in a long plate shape, but a plurality of fins may be provided on the side opposite to the module 241 side.
- the fins in this case may be formed, for example, along the longitudinal direction of the second metal plate 242 and arranged at an equal pitch in the short direction of the second metal plate 242.
- the LED chip 210 is mounted on each die pad 234 of the wiring board 240 described above.
- the LED chip 210 is provided with a pair of electrodes 211, 212 (see FIG. 6) on one surface side in the thickness direction, and one electrode 211 is electrically connected to the lead 236 via the bonding wire 214, The other electrode 212 is electrically connected to the heat sink 235 via the bonding wire 214.
- the LED chip 210 may have electrodes formed on both surfaces in the thickness direction. In this case, one electrode is electrically connected to the heat sink 235 via the die pad 234 and the other electrode is a bonding wire. It is only necessary to be electrically connected to the lead 236 via (see FIG. 3).
- the surface mount type Zener diode ZD for preventing the overvoltage is provided on the wiring board 240 of the LED unit 250, and the heat sink 235 and the bonding wire 214 are bonded.
- the lead 236 is arranged so as to straddle the lead 236 which is not made. Therefore, the Zener diode ZD is electrically connected to the heat sink 235 and the lead 236. Note that the Zener diode ZD is electrically connected by joining the pair of external connection electrodes of the Zener diode ZD to the second plating layer 247 of each of the heat sink 235 and the lead 236 with solder or the like.
- the LED unit 250 includes an optical member 260 that controls the light distribution of the light emitted from the LED chip 210 for each unit unit 233a of the pattern 233.
- the optical member 260 is formed in a dome shape with a translucent material, and is fixed to the main surface side of the wiring board 240 so as to accommodate the LED chip 210 between the optical member 260 and the wiring board 240.
- a sealing portion 255 made of a first light-transmitting material that seals the LED chip 210 and the bonding wire 214 electrically connected to the LED chip 210.
- the sealing part 255 is made into a gel by adopting a silicone resin as the first light-transmitting material, for example.
- the LED unit 250 includes a phosphor that emits light of a color different from the emission color of the LED chip 210 and is excited by the light emitted from the LED chip 210 and transmitted through the sealing portion 255 and the optical member 260.
- a dome-shaped color conversion member 270 made of a translucent material is provided.
- the color conversion member 270 is disposed on the main surface side of the wiring board 240 so as to surround the LED chip 210 and the like with the wiring board 240. More specifically, the color conversion member 270 is disposed so that an air layer 280 is formed between the wiring board 240 and the light emitting surface 260b of the optical member 260 on the one surface side.
- the holding portion 244 of the wiring board 240 is an annular weir that dams the first translucent material that overflows when the optical member 260 is fixed to the wiring board 240 outside the optical member 260 on the one surface. A portion 245 is projected.
- dam portion 245 extends inward from the inner peripheral surface of the dam portion 245 to center the center of the dam portion 245 and the central axis of the optical member 260 (four in this embodiment) claw portions 246. Are spaced apart from each other in the circumferential direction and also serve as a positioning portion for the color conversion member 270.
- the LED unit 250 described above includes, for each unit unit 233a, the light emitting device 201 that includes the unit unit 233a, the holding unit 244, the LED chip 210, the sealing unit 255, the optical member 260, and the color conversion member 270.
- the light emitting devices 201 adjacent to each other in the arrangement direction of the unit units 233a are connected by a connecting piece 237 and electrically connected in series.
- the LED chip 210 is a GaN-based blue LED chip that emits blue light, and is a light-emitting unit that is formed of a GaN-based compound semiconductor material on the main surface side of the crystal growth substrate and has, for example, a double-layer structure. After a substrate is epitaxially grown, a support substrate (for example, a Si substrate) that supports the light emitting portion is fixed to the light emitting portion, and then the crystal growth substrate is removed.
- the structure of the LED chip 210 is not particularly limited.
- a light emitting portion is provided on the main surface side of a crystal growth substrate made of an n-type SiC substrate or an n-type GaN substrate, and electrodes are provided on both sides in the thickness direction. It may be provided.
- Each electrode is composed of, for example, a laminated film of a Ni film and an Au film. However, these materials are not particularly limited and may be any material that can obtain good ohmic characteristics. Aluminum or the like may be used.
- the LED chip 210 is provided with a support substrate such as a Si substrate as described above, or when a SiC substrate or a GaN substrate is used, a sapphire substrate that is an insulator is left as a substrate for crystal growth. Compared to the case, the thermal resistance from the light emitting portion to the die pad 234 can be reduced. Moreover, the light radiated
- the LED chip 10 is mounted on the die pad 234 of the wiring board 240 as shown in FIG.
- the heat generated in the LED chip 210 can be dissipated through the path of the die pad 234, the insulating layer 243, and the second metal plate 242.
- the LED chip 210 is attached to the die pad 234 via a submount member 215 that relieves stress acting on the LED chip 210 due to a difference in linear expansion coefficient between the LED chip 210 and the die pad 234. You may make it mount.
- the submount member 215 is formed in a rectangular plate shape having a planar size larger than the chip size of the LED chip 210.
- the submount member 215 has not only a function of relieving the stress but also a heat conduction function of transferring heat generated in the LED chip 210 to a range wider than the chip size of the LED chip 210 in the unit unit 233a. . Therefore, the LED unit 250 can efficiently dissipate the heat generated in the LED chip 210 through the submount member 215, the unit unit 233a, and the second metal plate 242. Further, the light emitting device 201 includes the submount member 215, so that the stress acting on the LED chip 210 due to the difference in linear expansion coefficient between the LED chip 210 and the die pad 234 can be relieved.
- the material of the submount member 215 AlN having a relatively high thermal conductivity and an insulating property is adopted.
- the LED chip 210 and the submount member 215 may be bonded using, for example, solder such as SnPb, AuSn, SnAgCu, or silver paste, but may be bonded using lead-free solder such as AuSn, SnAgCu. It is preferable.
- solder such as SnPb, AuSn, SnAgCu, or silver paste
- lead-free solder such as AuSn, SnAgCu. It is preferable.
- the submount member 215 is AlN and is bonded using AuSn, a pretreatment for forming a metal layer made of Au or Ag in advance on the bonding surface of the submount member 215 and the LED chip 210 is necessary.
- the submount member 215 and the die pad 234 are preferably bonded using, for example, lead-free solder such as AuSn or SnAgCu.
- lead-free solder such as AuSn or SnAgCu.
- the material of the submount member 215 is not limited to AlN, and any material that has a relatively small linear expansion coefficient difference from the LED chip 210 and a relatively high thermal conductivity may be used. For example, composite SiC, Si, CuW, etc. It may be adopted.
- the thickness of the submount member 215 is preferably set so that the surface of the submount member 215 is farther from the unit unit 233a than the surface of the dam portion 245 of the wiring board 240. By setting the submount member 215 to such a thickness dimension, light emitted from the LED chip 210 to the side can be prevented from being absorbed by the holding portion 244 through the inner peripheral surface of the weir portion 245. It becomes possible.
- the submount member 215 reflects light emitted from the LED chip 210 around a bonding portion with the LED chip 210 on the surface to which the LED chip 210 is bonded (that is, a portion overlapping the LED chip 210).
- a reflective film is formed. Therefore, the light emitted from the side surface of the LED chip 210 can be prevented from being absorbed by the submount member 215, and the light extraction efficiency to the outside can be further increased.
- the reflective film in the submount member 215 may be formed of, for example, a laminated film of a Ni film and an Ag film, but the material of the reflective film is not particularly limited.
- the emission wavelength of the LED chip 210 It may be appropriately selected depending on the situation.
- the LED chip 210 When the LED chip 210 having electrodes provided on both sides in the thickness direction is used, the LED chip 210 is electrically connected to an electrode disposed on the submount member 215 side of the LED chip 210.
- a conductor pattern may be provided, and the conductor pattern and the heat sink 235 may be electrically connected via a bonding wire made of a thin metal wire (for example, a gold wire, an aluminum wire).
- the holding portion 244 of the wiring board 240 is provided for each unit unit 233a as described above, and a circular shape that exposes a part of the die pad 234 and each lead 236 in the central portion of the holding portion 244.
- a first opening 244a (see FIG. 5B) is formed, and a rectangular second opening 244b (see FIG. 5B) that exposes a portion where the Zener diode ZD is mounted is formed.
- the second opening 244b is formed to expose a part of the lead 236 that is disposed along the outer peripheral edge of the heat sink 235 and a part of the heat sink 235 near the part.
- the holding portion 244 is formed with a rectangular third opening 244c (see FIG. 5B) that exposes a portion where a connector CN described later can be mounted.
- the third opening 244c is formed so as to expose a part of the wiring 238 and a part of the heat sink 235 near the part.
- the wiring board 240 is a second layer formed of a multilayer film of a Ni film, a Pd film, and an Au film on the surface side of the pattern 233 and also in a portion exposed by each of the second opening 244b and the third opening 244c.
- the plating layer 247 is formed. Further, on the surface side of the pattern 233, a third plating layer made of a Ni film is formed except for a portion where the second plating layer 247 is formed.
- the silicone resin is used as the first translucent material of the sealing portion 255 described above, it is not limited to the silicone resin, and for example, an acrylic resin may be used. Moreover, you may use glass as a 1st translucent material.
- the optical member 260 is a molded product of a translucent material (for example, silicone resin, acrylic resin, glass, etc.) and is formed in a dome shape.
- a translucent material for example, silicone resin, acrylic resin, glass, etc.
- the optical member 260 is formed of a molded product of silicone resin, the difference in refractive index and linear expansion coefficient between the optical member 260 and the sealing portion 255 can be reduced.
- the material of the sealing part 255 is an acrylic resin, it is preferable that the optical member 260 is also formed of an acrylic resin.
- the optical member 260 has a light emitting surface 260b formed in a convex curved surface shape that does not totally reflect the light incident from the light incident surface 260a at the boundary between the light emitting surface 260b and the air layer 280 described above.
- the optical axis 210 and the optical axis coincide with each other. Therefore, the light emitted from the LED chip 210 and incident on the light incident surface 260a of the optical member 260 can easily reach the color conversion member 270 without being totally reflected at the boundary between the light emitting surface 260b and the air layer 280.
- the total luminous flux can be increased.
- the optical member 260 is formed to have a uniform thickness along the normal direction regardless of the position.
- the color conversion member 270 is a mixture of a second light-transmitting material such as a silicone resin and yellow phosphor particles that are excited by the blue light emitted from the LED chip 210 and emit broad yellow light. It is comprised by the molded article of a mixture. Therefore, in the LED unit 250, the blue light emitted from the LED chip 210 and the light emitted from the yellow phosphor are emitted through the outer surface 270b of the color conversion member 270, and white light can be obtained.
- a second light-transmitting material such as a silicone resin
- yellow phosphor particles that are excited by the blue light emitted from the LED chip 210 and emit broad yellow light. It is comprised by the molded article of a mixture. Therefore, in the LED unit 250, the blue light emitted from the LED chip 210 and the light emitted from the yellow phosphor are emitted through the outer surface 270b of the color conversion member 270, and white light can be obtained.
- the second light-transmitting material used as the material of the color conversion member 270 is not limited to silicone resin, but, for example, acrylic resin, glass, organic / inorganic in which organic and inorganic components are mixed and bonded at the nm level or molecular level A hybrid material or the like may be used.
- the phosphor particles mixed with the second light-transmitting material used as the material of the color conversion member 270 are not limited to the yellow phosphor. For example, white light can be obtained even when a red phosphor and a green phosphor are mixed. The color rendering properties can be improved when the red phosphor and the green phosphor are mixed.
- the color conversion member 270 has an inner surface 270 a formed along the light emission surface 260 b of the optical member 260. Therefore, the distance between the light emitting surface 260b in the normal direction and the inner surface 270a of the color conversion member 270 is a substantially constant value regardless of the position of the light emitting surface 260b of the optical member 260. Further, the color conversion member 270 is formed so that the thickness along the normal direction is uniform regardless of the position. In addition, the color conversion member 270 may be fixed to the wiring board 240 with an edge (periphery of the opening) on the wiring board 240 side using, for example, an adhesive (for example, a silicone resin, an epoxy resin, or the like).
- an adhesive for example, a silicone resin, an epoxy resin, or the like.
- the weir portion 245 also serves as a positioning portion for the color conversion member 270.
- the number of the claw portions 246 for centering described above is not limited to four, but it is desirable to provide at least three.
- the width dimension of the claw portion 246 is desirably smaller in order to increase the allowable amount of the first light transmissive material that can be accumulated between the dam portion 245 and the optical member 260.
- an annular groove for positioning the color conversion member 270 may be provided on the wiring board 240 without providing the dam portion 245.
- the color conversion member 270 has a notch 271 (see FIG. 8) that engages with the weir 245 at the end on the wiring board 240 side over the entire circumference. Therefore, in the light emitting device 201 in this embodiment, the positioning accuracy of the color conversion member 270 with respect to the holding portion 244 of the wiring board 240 can be increased, and the interval between the color conversion member 270 and the optical member 260 can be shortened. it can. Note that the cutout portion 271 is open on the edge side and the inner surface 270a side of the color conversion member 270.
- the light emitting device 201 (the leftmost light emitting device 201 in FIG. 7A) having the one unit unit 233a in the arrangement direction of the plurality of unit units 233a and the other unit unit.
- a connector CN is mounted on the light emitting device 201 provided with 233a (the rightmost light emitting device 201 in FIG. 7A).
- the connector CN is a surface mount type connector, and one contact of the pair of contacts is joined and electrically connected to the heat sink 235 by soldering, and the other contact is connected to the wiring 238. They are joined by soldering and electrically connected.
- a connector (hereinafter referred to as an output connector) 291 that is detachably connected to a connector CN of the light emitting device 201 at the right end of the LED unit 250 at one end (hereinafter referred to as an output connector).
- an input connector (Referred to as an input connector) 292 is connected to a connector at the output end of the lighting device (not shown), the power can be supplied from the lighting device to the series circuit of the LED chips 210 of the LED unit 250 to light it.
- the connector CN and the input connector 292 of the light emitting device 201 at the right end of the LED unit 250 are respectively a female connector, the output connector 291 and the connector of the light emitting device 201 at the left end of the LED unit 250.
- Each CN is a male connector, but the female and male connectors may be reversed.
- the connector CN can be mounted for each light emitting device 201, a plurality of (eight in the example of FIG. 7) light emitting devices 201 that can be manufactured per pitch of the lead frame 230 when the LED unit 250 is manufactured. Of these, only an arbitrary number of light emitting devices 201 can be cut out and used.
- a first plating step of forming a first plating layer made of a Ni film on the back surface of the pattern 233 and forming a third plating layer made of a Ni film on the main surface of the pattern 233 is performed.
- the structure shown in FIG. 10 is obtained by performing the second plating process for forming the Pd film and the Au film of the plating layer 247. Note that, in the first plating step, the first plating layer and the third plating layer are also formed on the support piece 232 of the lead frame 230 at a portion located inside the outer peripheral edge of the holding portion 244. In the second plating step, the amount of Au used can be reduced and the cost can be reduced by forming the third plating layer by spot plating.
- the structure shown in FIG. 11 in which the module 241 is supported by the outer frame portion 231 via the support piece 232 is obtained by performing a molding step of injection molding (injection molding) of the holding portion 244. .
- the LED chip 210 is mounted on the die pad 234, the Zener diode ZD and the connector CN are mounted, and appropriate portions of the LED chip 210 and the unit unit 233a (in the case of FIG. 2, the lead 236 and the heat sink 235, in the case of FIG. 3). , Lead 236 only), and a mounting process for performing electrical connection with the bonding wire 214 is performed. Thereafter, a sealing process for sealing the LED chip 210 and the bonding wire 214 with the sealing portion 255 is performed. In this sealing step, first, a liquid first translucent material (for example, a part of the sealing portion 255 in the gap between the outer surface of the LED chip 210 and the inner peripheral surface of the first opening 244a).
- the pattern 233 supported on the inner side of the outer frame portion 231 of one pitch via the support piece 232 includes the die pad 234 on which the LED chip 210 is mounted, and the die pad 234 to the die pad 234.
- a plurality of the unit units 233a adjacent to each other, the lead 236 of one unit unit 233a and the heat sink 235 of the other unit unit 233a are connected and electrically connected in series.
- the lead frame 230 in the present embodiment can suppress the temperature rise of the LED chip 210 to increase the light output, and the low cost of the LED unit 250 that uses a plurality of LED chips 210 connected in series.
- an LED unit 250 manufactured using the lead frame 230 includes a plurality of light emitting devices 100 having the configuration shown in FIG. 60 manufactured using the lead frame 300 shown in FIG. Compared to an LED unit that uses LED chips 161 connected in series, the cost can be reduced.
- the lead 236 is disposed inside the cut groove 235 a formed from the outer peripheral edge of the heat sink 235 toward the die pad 234, so the distance between the die pad 234 and the lead 236. Can be shortened. As a result, the distance between the LED chip 210 and the lead 236 can be shortened, and the length of the bonding wire 214 connected to the LED chip 210 can be shortened. Therefore, the optical member 260 and the color conversion member 270 can be reduced in size.
- the lead frame 230 of the present embodiment can be used for manufacturing the elongated LED unit 250 because the plurality of unit units 233a are arranged along the length direction of the outer frame portion 231. .
- the lead frame 230 in the present embodiment includes a wiring 238 in which the pattern 233 is disposed on the side of the heat sink 235 across the plurality of unit units 233a, and the wiring 238 is in the length direction of the outer frame portion 231. Are connected to and electrically connected to the lead 236 of the unit unit 233a at one end.
- the lead frame 230 can be used in a state where one LED chip 210 is mounted for each unit unit 233a and the pattern 233 is separated from the outer frame portion 231 as in the LED unit 250 described above.
- power can be supplied to the series circuits of all the LED chips 210.
- the wiring board 240 in the present embodiment includes a module 241 having a pattern 233 that can be connected in series with a plurality of LED chips 210 that are formed using the first metal plate 203 and arranged on the main surface side.
- the pattern 233 and the second metal plate 242 are interposed between the second metal plate 242 disposed on the back side of the metal plate 242 and the module 241 and the second metal plate 242 having electrical insulation and thermal conductivity.
- the pattern 233 is cut from the lead frame 230 described above. Since the module 241 includes the holding portion 244 made of an insulating material that holds the die pad 234, the heat sink 235, and the lead 236 for each unit unit 233a of the pattern 233, the wiring board 240 includes the temperature of the LED chip 210. An increase in light output can be achieved by suppressing the rise, and the cost of the LED unit 250 that uses a plurality of LED chips 210 connected in series can be reduced.
- the LED chip 210 is mounted on each die pad 234 of the wiring board 240 described above, and when both electrodes are provided on one surface side in the thickness direction of the LED chip 210, As shown in FIG. 2, each electrode of the LED chip 210 is electrically connected to the lead 236 and the heat sink 235 via bonding wires 214. Therefore, in the LED unit 250 of this embodiment, heat generated in the LED chip 210 is efficiently radiated through the second metal plate 242 from the die pad 234 and the heat sink 235 formed using the lead frame 230 described above. As a result, the temperature rise of the LED chip 210 can be suppressed, the light output can be increased, and the cost can be reduced.
- one electrode of the LED chip 210 is electrically connected to the heat sink 235 via the die pad 234 as shown in FIG. And the other electrode is electrically connected to the lead 236 via the bonding wire 214. Even in this configuration, the temperature rise of the LED chip 210 can be suppressed, and the light output can be increased. Cost reduction can be achieved.
- each of the light emitting devices 201 of the LED unit 250 in the present embodiment has an air layer 280 interposed between the dome-shaped color conversion member 270 and the optical member 260, the light emitting device 201 is radiated from the LED chip 210 and sealed.
- the amount of light that is scattered toward the optical member 260 and transmitted through the optical member 260 can be reduced.
- the light extraction efficiency to the outside of each light emitting device 201 can be improved.
- the second opening 244b and the third opening 244c are formed in the holding part 244 of the wiring board 240, so that the lead 236, the heat sink 235, and the wiring 238 are the first.
- the second plating layer 247 may be formed by spot plating at a portion exposed by the second opening 244b and the third opening 244c, and the second opening 244b and the third opening 244c, respectively.
- Each of the Zener diode ZD and the connector CN can be mounted with high positional accuracy using the mark as a mark.
- one LED chip 210 having a chip size of 1 mm ⁇ is mounted on each unit unit 233a, but the chip size and number of LED chips 210 are not particularly limited.
- an LED chip 210 having a chip size of 0.3 mm ⁇ may be used, and as shown in FIG. 13, a plurality of (two in the illustrated example) LED chips are provided for one unit unit 233a. 210 may be implemented. In this case, two LED chips 210 are connected in parallel for each unit unit 233a, and parallel circuits of the two LED chips 210 are connected in series by the number of unit units 233a. Also, a plurality of LED chips 210 may be mounted on the submount member 215 shown in FIG.
- the pattern 233 includes the wiring 238 disposed on the side of the heat sink 235 across the plurality of unit units 233a, and this wiring 238 is the outer frame portion 231.
- the lead frame 230 may be configured such that the wiring 238 can be used as a feed wiring without connecting the wiring 238 and the lead 236 of the unit unit 233a at one end.
- the second plating layer 247 (the two upper left two plating layers 247 in FIG. 14A) formed on each of the lead 236 and the wiring 238 may be exposed.
- a plurality of LED units 250 are arranged in a straight line, and between adjacent LED units 250, a connector for feed wiring connected to the unit unit 233a at one end of one LED unit 250, and the other LED unit 250.
- the connector CN mounted on the unit unit 233a at the other end is electrically connected by a connector cable, and power is supplied to all the LED units 250 from one lighting device to light them. Can do.
- the two cut grooves 235a of the heat sink 235 are oriented so as to approach each other and the center line is aligned, so that as shown in FIG.
- the degree of freedom in designing the layout of the LED chips 210 when a large number of LED chips 210 are mounted on the die pad 234 is increased.
- the pattern 233 formed using the lead frame 230 is the lead 236 of one unit unit 233a of the unit unit 233a adjacent to each other, and the other unit unit 233a. Since the connecting piece 237 is connected to the heat sink 235, the cost of the LED unit 250 can be reduced.
- the first metal plate 203 and the second metal plate 242 have a linear expansion coefficient.
- the pattern 233 is caused to be an insulating layer due to stress acting on the pattern 233 due to a difference in linear expansion coefficient between the first metal plate 203 and the second metal plate 242 in the operating temperature range. There is a concern of peeling from 243.
- connection piece 237 in the wiring board 240, a space 248 is provided between the connection piece 237 and the insulating layer 243, and the connection piece 237 includes the first metal plate 203 and the second metal. You may make it provide the stress relaxation part 237b bent so that the stress which acts on the pattern 233 resulting from the linear expansion coefficient difference with the board 242 may be relieved. Further, since the pattern 233 of the wiring board 240 shown in FIG. 16 also includes the wiring 238, the wiring 238 is also located between the wiring 238 and the insulating layer 243 with respect to the portion located on the side of the connecting piece 237.
- a space 249 is provided, and a stress relaxation portion 238b bent so as to relieve the stress acting on the pattern 233 due to the difference in linear expansion coefficient between the first metal plate 203 and the second metal plate 242 is provided.
- the longitudinal direction of the second metal plate 242 (that is, the direction in which the unit units 233a are arranged) is the x-axis direction
- the short direction of the second metal plate 242 is the y-axis direction
- the stress relaxation portions 237b and 238b in FIG. 16 are bent so that the cross-section (xz plane) orthogonal to the y-axis direction has an inverted V shape.
- the wiring board 240 as shown in FIG. 16 since the stress relaxation portions 237b and 238b are provided, materials having different linear expansion coefficients are adopted for the first metal plate 203 and the second metal plate 242. Even in this case, the pattern 233 can be prevented from peeling from the insulating layer 243 due to the stress acting on the pattern 233 due to the difference in linear expansion coefficient between the first metal plate 203 and the second metal plate 242. It becomes possible.
- the shape of the stress relaxation portions 237b and 238b is not limited to the example of FIG. 16, and may be a shape as shown in FIG.
- the stress relaxation portions 237b and 238b in FIG. 17 are bent in a V shape in a plane (xy plane) parallel to the joint surface of the second metal plate 242 and the insulating layer 243 in the connecting piece 237 and the wiring 238, respectively. ing.
- the stress relaxation part 237b of the connecting piece 237 and the stress relaxation part 238b of the wiring 238 are bent so that the respective central parts are separated from each other.
- the shape of the stress relaxation parts 237b and 238b is not particularly limited to the V shape, and other shapes may be used.
- the pattern 233 includes the wiring 238, but the wiring 238 is not necessarily provided.
- FIGS. 18A and 18B The basic configuration of the lead frame 230 of this embodiment shown in FIGS. 18A and 18B is substantially the same as that of Embodiment 1, and a plurality of unit units 233a are arranged so as to surround the center of the area surrounded by the outer frame portion 231. Differences are made.
- symbol is attached
- FIG. 18A is a schematic perspective view of two pitches of the lead frame 230.
- the lead frame 230 has a plurality (10 in the illustrated example) of unit units 233a arranged on two concentric virtual circles, on a virtual circle positioned relatively inside. Compared to the number of die pads 234, the number of die pads 234 on the virtual circle located relatively outside is increased. Therefore, the wiring board 240 (see FIG. 22) manufactured using the lead frame 230 has the same die pad 234 arrangement as the lead frame 230. Further, in the LED unit 250 (see FIG. 24) manufactured using the wiring board 240, the number of LED chips 210 (see FIGS. 8 and 9) mounted on each die pad 234 is the same (for example, one). Then, on the basis of these two virtual circles, the number of LED chips 210 on the virtual circle relatively positioned on the outer side is larger than the number of LED chips 210 on the virtual circle relatively positioned on the inner side. Become more.
- the pattern 233 of the lead frame 230 includes two power supply lines 139 extending from the heat sinks 235 of the two unit units 233a in order to supply power to the series circuit of the LED chips 210.
- a second plating layer 247 (see FIG. 22) having a stacked structure of a Ni film, a Pd film, and an Au film is formed on the main surface of the tip portion of the two power supply lines 139. Yes. Therefore, for example, by connecting a power supply wire from a lighting device (not shown) to each of the second plating layers 247 of the two power supply lines 139, power is supplied to the series circuit of the LED unit 210 to light it. Is possible.
- the second metal plate 242 is formed in a disc shape, and a pair of electric wires for power feeding is provided at the center of the second metal plate 242.
- a wire insertion hole 242c that can be inserted is formed.
- a plurality of (four in the illustrated example) holes 242d into which the screws used when the LED unit 250 is attached to another member such as a fixture main body of the lighting fixture can be inserted in the peripheral portion of the second metal plate 242. are formed at substantially equal intervals in the circumferential direction of the second metal plate 242.
- a Ni film is formed on the back surface of the pattern 233.
- a first plating step of forming a first plating layer and forming a third plating layer made of a Ni film on the main surface of the pattern 233 is performed, followed by the Pd film and the Au film of the second plating layer 247
- the structure shown in FIG. 19 is obtained by performing the second plating step for forming.
- the structure shown in FIG. 20 is obtained in which the module 241 is supported by the outer frame portion 231 via the support piece 232 by performing a molding step of injection molding (injection molding) of the holding portion 244. .
- a cutting step of cutting the module 241 from the support piece 232 of the lead frame 230 is performed, and a bonding step of bonding the module 241 and the second metal plate 242 via the insulating layer 243 is performed.
- the wiring board 240 having the structure shown in FIG. 22 is obtained.
- the second metal plate 242 and the insulating layer 243 those capable of obtaining a large number are used.
- an LED chip 210 is mounted on the die pad 234 and a Zener diode ZD (see FIG. 23) is mounted, and a mounting process is performed in which the LED chip 210 and an appropriate portion of the unit unit 233a are electrically connected by a bonding wire 214.
- a sealing process is performed in which the LED chip 210 and the bonding wire 214 (see FIGS. 2 and 3) are sealed by the sealing portion 255 (see FIGS. 8 and 9).
- a liquid first transparent light that becomes a part of the sealing portion 255 in the gap between the outer surface of the LED chip 210 and the inner peripheral surface of the first opening 244a (see FIG. 20B).
- a functional material for example, silicone resin, acrylic resin, glass, etc.
- a liquid first translucent material for example, a silicone resin, which becomes the remaining portion of the sealing portion 255 described above inside the dome-shaped optical member 260 (see FIGS. 8, 9, and 23). Inject acrylic resin, glass, etc.).
- the optical member 260 is disposed at a predetermined position on the wiring board 240 and the first translucent material is cured to form the sealing portion 255, and at the same time, the optical member 260 is fixed to the wiring board 240.
- the mounting process first mounting process
- a fixing process for fixing the color conversion member 270 to the wiring board 240 is performed, thereby performing FIG. As shown, a plurality of LED units 250 are obtained. Then, the LED unit 250 shown in FIG. 24 is obtained by cutting into individual LED units 250.
- the plurality of unit units 233a are arranged so as to surround the center of the area surrounded by the outer frame portion 231, and thus the plurality of LED chips 210 are connected in series.
- the cost of the circular LED unit 250 to be used can be reduced.
- the wiring board 240 in this embodiment can also suppress the temperature rise of the LED chip 210 and increase the light output as in the first embodiment, and the LED used by connecting a plurality of LED chips 210 in series. The cost of the unit 250 can be reduced.
- heat generated in the LED chip 210 passes through the second metal plate 242 from the die pad 234 and the heat sink 235 formed using the lead frame 230 described above.
- the heat is efficiently dissipated, the temperature rise of the LED chip 210 can be suppressed, the light output can be increased, and the cost can be reduced.
- the space 248 described with reference to FIGS. 16 and 17, the stress relaxation portion 237b, and the like may be provided.
- the light emitting device 201 includes the color conversion member 270.
- the LED chip 210 can emit white light alone, or when the phosphor is dispersed in the sealing portion 255, the light emitting device 201 includes the color conversion member 270.
- a structure without the color conversion member 270 can be employed.
- the light emitting unit 1 includes a mounting substrate 2 and a plurality of solid state light emitting elements 3 arranged on one surface side of the mounting substrate 2.
- the mounting substrate 2 includes a heat transfer plate 21 on which each solid light emitting element 3 is mounted on one surface side, a wiring pattern 22 that is disposed on the other surface side of the heat transfer plate 21 and to which the solid light emitting element 3 is electrically connected, An insulating layer 23 (first insulating layer 23) interposed between the heat transfer plate 21 and the wiring pattern 22 is provided.
- the heat transfer plate 21 is formed of a first metal plate
- the wiring pattern 22 is formed of a second metal plate having a linear expansion coefficient different from that of the first metal plate.
- the mounting substrate 2 has a smaller difference in linear expansion coefficient from the first metal plate than the second metal plate, and a base substrate 24 disposed on the opposite side of the wiring pattern 22 from the heat transfer plate 21 side, and the wiring pattern 22. And a second insulating layer 25 interposed between the base substrate 24 and the base substrate 24.
- the mounting substrate 2 is formed in a long shape, and a plurality of solid state light emitting elements 3 are arranged along the longitudinal direction of the mounting substrate 2 on the one surface side.
- the heat transfer plate 21 is formed in a long shape (here, an elongated rectangular plate shape).
- a metal having high thermal conductivity such as aluminum or copper is preferable.
- the material of the first metal plate is not limited to these, and may be stainless steel or steel, for example.
- the heat exchanger plate 21 has a function as a reflecting plate, and it is more preferable to employ aluminum as the material of the first metal plate.
- the first metal plate is an aluminum plate, an aluminum film having a higher purity than the aluminum plate is laminated on the opposite side of the aluminum plate to the first insulating layer 23 side, and the refractive index of the aluminum film is It is preferable that a reflection enhancing film made of two different types of dielectric films is laminated.
- the two types of dielectric films for example, an SiO 2 film and a TiO 2 film are preferably employed.
- heat transfer plate 21 for example, MIRO2 or MIRO (registered trademark) manufactured by alanod can be used.
- MIRO2 or MIRO registered trademark
- an anodized surface may be used.
- the thickness of the heat transfer plate 21 may be set as appropriate within a range of about 0.2 to 3 mm, for example.
- the LED chip is used as the solid-state light emitting element 3, but the LED chip is not limited to this.
- the LED chip may be housed in a package.
- a laser diode semiconductor laser
- an organic EL element or the like may be used as the solid light emitting element 3.
- the solid state light emitting device 3 is provided with a first electrode (anode electrode) 31 and a second electrode (cathode electrode) 32 on one surface side in the thickness direction, and the other surface side in the thickness direction is joined. It is joined to the heat transfer plate 21 via the part 35.
- each of the first electrode 31 and the second electrode 32 is electrically connected to the wiring pattern 22 via a wire (bonding wire) 26.
- the heat transfer plate 21 is formed with a through hole 21b through which each wire 26 passes.
- the through-holes 21 b are formed on both sides of the mounting region of the solid light emitting element 3 in the width direction of the heat transfer plate 21.
- the through hole 21b has a circular opening shape.
- the inner diameter of the through hole 21b is set to 0.5 mm, but this value is an example and is not particularly limited.
- the shape of the through hole 21b is not limited to a circular shape, and may be, for example, a rectangular shape or an elliptical shape.
- the bonding portion 35 may be formed of a die bond material.
- the LED chip is a GaN-based blue LED chip that emits blue light, and uses a sapphire substrate as a substrate.
- the substrate of the LED chip is not limited to the sapphire substrate, and may be a GaN substrate, a SiC substrate, a Si substrate, or the like.
- the structure of the LED chip is not particularly limited.
- the chip size of the LED chip is not particularly limited. For example, a chip size of 0.3 mm ⁇ , 0.45 mm ⁇ , or 1 mm ⁇ can be used.
- the material and light emission color of the light emitting layer of the LED chip are not particularly limited. That is, the LED chip is not limited to the blue LED chip, and for example, a violet light LED chip, an ultraviolet light LED chip, a red LED chip, a green LED chip, or the like may be used.
- the die bond material for example, a silicone-based die bond material, an epoxy-based die bond material, a silver paste, or the like can be used.
- wire 26 for example, a gold wire, an aluminum wire, or the like can be used.
- the solid light emitting element 3 and the wire 26 are sealed on the one surface side of the heat transfer plate 21.
- a portion 36 is preferably provided.
- a silicone resin that is a first light transmissive material is used as the material of the sealing portion 36.
- the first light transmissive material is not limited to a silicone resin, and for example, an epoxy resin, an acrylic resin, glass, or the like may be used.
- the light emitting unit 1 has a wavelength conversion material that emits light of a color different from the emission color of the LED chip in order to obtain high output white light.
- a color conversion unit 37 is preferably provided.
- a color conversion unit 37 for example, a phosphor that is excited by light emitted from the LED chip and emits light of a color different from the emission color of the LED chip is used as the wavelength conversion material. Those containing two light-transmitting materials are preferred.
- the light emitting unit 1 uses, for example, a blue LED chip as the LED chip and a yellow phosphor as the phosphor of the color conversion unit 37, white light can be obtained. That is, the light emitting unit 1 emits the blue light emitted from the LED chip and the light emitted from the yellow phosphor through the surface of the color conversion unit 37 and can obtain white light.
- Silicone resin is used as the second translucent material used as the material of the color conversion unit 37, but is not limited to this.
- acrylic resin, glass, organic component and inorganic component are mixed at the nm level or the molecular level.
- a combined organic / inorganic hybrid material may be employed.
- the phosphor used as the material of the color conversion unit 37 is not limited to the yellow phosphor.
- the color rendering can be achieved by using a yellow phosphor and a red phosphor, or using a red phosphor and a green phosphor. It becomes possible to raise.
- the phosphor used as the material of the color conversion unit 37 is not limited to one type of yellow phosphor, and two types of yellow phosphors having different emission peak wavelengths may be used.
- the LED chip can emit white light alone, when the phosphor is dispersed in the sealing portion 36, or when the light color desired to be obtained by the light emitting unit 1 is the same as the emission color of the LED chip. Can adopt a structure that does not include the color conversion unit 37.
- the color conversion unit 37 is preferably in contact with the heat transfer plate 21. Thereby, the light emitting unit 1 can dissipate not only the heat generated in the LED chip but also the heat generated in the color conversion unit 37 through the heat transfer plate 21, and can increase the light output. It becomes.
- the color conversion unit 37 is formed in a semi-cylindrical shape, and the LED chip and the sealing unit 36 are provided between the heat transfer plate 21 and the heat transfer plate 21 on the one surface side. It is arranged in a form surrounding. More specifically, the color conversion unit 37 is disposed such that a gas layer (for example, an air layer) 38 is formed between the heat transfer plate 21 and the sealing unit 36 on the one surface side.
- the color conversion unit 37 may have a hemispherical shape, and the color conversion unit 37 may seal the LED chip and the wire 26 that are the solid light emitting elements 3.
- the light emitting unit 1 has a color conversion portion 37 in a dome shape, and the color conversion portion 37 seals the LED chip and the wire 26 that are the solid light emitting elements 3. Good.
- the color conversion unit 37 is formed in a layered shape, and the LED chip and the wire 26 that are the solid light emitting elements 3 are sealed by the color conversion unit 37. Good.
- the color conversion part 37 like FIG.27 and FIG.34 uses what was shape
- the color conversion part 37 as shown in FIG. 33 can be formed by a shaping
- the color conversion unit 37 as shown in FIG. 35 can be formed by, for example, a coating method using a dispenser or a screen printing method.
- the wiring pattern 22 is formed of the second metal plate having a linear expansion coefficient different from that of the heat transfer plate 21 as described above.
- the second metal plate uses a lead frame 120 (see FIG. 32C) formed by stamping a metal hoop material with a press.
- the material of the second metal plate is preferably copper having a relatively high thermal conductivity among metals (the thermal conductivity of copper is about 398 W / m ⁇ K), but is not limited to copper, for example, phosphor bronze, etc. Alternatively, a copper alloy (for example, 42 alloy) may be used.
- the thickness of the second metal plate is preferably set in the range of about 100 ⁇ m to 1500 ⁇ m, for example.
- the lead frame 120 is configured such that the wiring pattern 22 is supported on the inner side of the outer frame portion 121 via a support piece 122 (see FIG. 32D).
- a first pattern 22 a to which the first electrode 31 of the solid state light emitting device 3 is connected and a second pattern 22 b to which the second electrode 32 is connected are arranged in the width direction of the heat transfer plate 21.
- the wiring pattern 22 includes a predetermined number (for example, 16) of the first pattern 22a and the second pattern 22b, respectively.
- each of the first pattern 22a and the second pattern 22b The heat transfer plates 21 are arranged side by side in the longitudinal direction.
- the first pattern 22a and the second pattern 22b are formed in a rectangular shape, and are arranged so that the longitudinal direction thereof coincides with the heat transfer plate 21.
- the first patterns 22a arranged in the longitudinal direction of the heat transfer plate 21 are divided into two sets, and the first patterns 22a forming the set are connected by a connecting piece 22c.
- the wiring pattern 22 is divided into a set of two second patterns 22b of a specified number (for example, 16) arranged in the longitudinal direction of the heat transfer plate 21, and the second patterns 22b forming the set are separated from each other. They are connected and electrically connected by a connecting piece 22d.
- the connecting pieces 22c and 22d are linear first portions 22ca and 22da arranged along the width direction of the heat transfer plate 21 and the heat transfer plate 21 from both longitudinal ends of the first portions 22ca and 22da.
- the connecting piece 22c is formed narrower than the first pattern 22a
- the connecting piece 22d is formed narrower than the second pattern 22b.
- the wiring pattern 22 includes two first patterns 22a forming a set, a connecting piece 22c connecting the two first patterns 22a, two second patterns 22b forming a set,
- One unit pattern 22u is constituted by the connecting piece 22d obtained by connecting the second patterns 22b.
- a plurality of unit units 22 u are arranged along the length direction of the outer frame portion 121.
- the first pattern 22a of one unit pattern 22u and the second pattern 22b of the other unit pattern 22u are connected by a connecting piece 22e. They are connected and electrically connected.
- the connecting piece 22e is formed narrower than the first pattern 22a and the second pattern 22b.
- the wiring pattern 22 can configure a parallel circuit by connecting in parallel a predetermined number (for example, six) of solid-state light emitting elements 3 arranged in the longitudinal direction of the heat transfer plate 21 for each unit pattern 22u.
- a parallel circuit formed for each adjacent unit pattern 22u can be connected in series. Therefore, power can be supplied to all the solid state light emitting devices 3 by supplying power between the first pattern 22a at one end in the longitudinal direction of the heat transfer plate 21 and the second pattern 22b at the other end.
- the first insulating layer 23 includes a filler made of a filler such as silica or alumina, and has a property of lowering viscosity during heating and increasing fluidity (thermosetting resin). It is formed by thermosetting an epoxy resin layer of a thermosetting sheet adhesive (for example, an adhesive sheet TSA manufactured by Toray Industries, Inc.) in which a plastic film (PET film) is laminated.
- a thermosetting sheet adhesive for example, an adhesive sheet TSA manufactured by Toray Industries, Inc.
- PET film plastic film
- an insulating material having higher thermal conductivity than the epoxy resin that is a thermosetting resin may be used.
- the epoxy resin layer of the sheet-like adhesive has properties of being electrically insulating and having high thermal conductivity, high fluidity during heating, and high adhesion to the uneven surface.
- the thickness of the epoxy resin layer described above is set to 100 ⁇ m, but this value is merely an example, and is not particularly limited. For example, the thickness may be appropriately set in the range of about 50 ⁇ m to 150 ⁇ m.
- the thermal conductivity of the epoxy resin layer is preferably 4 W / m ⁇ K or more.
- the heat transfer plate 21, the epoxy resin layer, and the lead frame 120 having the wiring pattern 22 may be appropriately pressed.
- the outer size of the first insulating layer 23 may be set as appropriate based on the outer size of the lead frame 120.
- the first insulating layer 23 has electrical insulation and thermal conductivity, and has a function of electrically insulating and thermally coupling the heat transfer plate 21 and the wiring pattern 22.
- the first insulating layer 23 is formed with through holes 23 b communicating with the respective through holes 21 b of the heat transfer plate 21. Therefore, at the time of manufacturing the light emitting unit 1, the wire 26 can be bonded to the wiring pattern 22 through the through hole 21 b of the heat transfer plate 21 and the through hole 23 b of the first insulating layer 23.
- the first electrode 31 and the second electrode 32 of the solid state light emitting element 3 are respectively connected to the first pattern 22 a and the second pattern 22 b through the wire 26, and then, for example, a dispenser or the like
- the material of the sealing portion 36 (see FIG. 27) is filled in the through hole 21b and the through hole 23b so that the wire 26 does not contact the first metal plate, and then the sealing portion 36 is formed.
- the wiring pattern 22 is made of a metal material having higher oxidation resistance and corrosion resistance than the second metal plate, and a surface treatment layer (not shown) having high adhesion with the first insulating layer 23 is formed.
- a surface treatment layer for example, a Ni film, a laminated film of Ni film and Au film, a laminated film of Ni film, Pd film and Au film, or the like may be formed.
- the surface treatment layer may be formed by, for example, a plating method.
- the base substrate 24 is formed in a long shape (here, an elongated rectangular plate shape).
- the base substrate 24 is preferably formed of a material having a smaller difference in linear expansion coefficient from the first metal plate than the second metal plate.
- the base substrate 24 is formed of a third metal plate made of the same material as the first metal plate. Therefore, the material of the third metal plate is preferably a metal having high thermal conductivity such as aluminum or copper.
- the material of the third metal plate is not limited to these, and may be, for example, stainless steel or steel.
- the thermal conductivity of aluminum is about 23 ppm
- the thermal conductivity of copper is about 17 ppm.
- the material of the second insulating layer 25 interposed between the wiring pattern 22 and the base substrate 24 it is preferable to adopt the same material as that of the first insulating layer 23.
- the heating temperature of the above-mentioned epoxy resin layer is raised to about 170 ° C. and cured, the fixing performance between the heat transfer plate 21 and the wiring pattern 22 decreases, and heating is performed.
- the temperature is lowered to about 150 ° C. and cured, the electrical insulation between the heat transfer plate 21 and the wiring pattern 22 may be lowered. That is, there is a trade-off relationship between fixing performance and electrical insulation. Therefore, in the present embodiment, as described later, the epoxy resin layers 123a and 133a (see FIGS. 31C and 32B) of the sheet-like adhesives 123 and 133 (see FIGS.
- the epoxy resin layer 123a is cured at 170 ° C. to ensure electrical insulation and thermal conductivity
- the other epoxy resin layer 133a is cured at 150 ° C. to ensure fixing performance and thermal conductivity.
- the other epoxy resin layer 133a and the lead frame 120 are overlapped to overlap the other epoxy resin layer 133a. May be cured at 150 ° C.
- FIG. 31 a method for manufacturing the mounting substrate 2 will be briefly described with reference to FIGS. 31 and 32.
- FIG. 31 a method for manufacturing the mounting substrate 2 will be briefly described with reference to FIGS. 31 and 32.
- the structure shown in FIG. 31A is obtained by forming the through holes 21b and the like in the heat transfer plate 21.
- a sheet-like adhesive 123 is stacked on the other surface side of the heat transfer plate 21 so that the epoxy resin layer 123a is in contact with the heat transfer plate 21, and a predetermined pressure (
- the sheet adhesive 123 is temporarily fixed to the heat transfer plate 21 by applying pressure at 0.5 MPa and heating at a first specified temperature (eg, 110 ° C. to 120 ° C.) lower than the curing temperature of the epoxy resin layer 123a. To do. Subsequently, the sheet adhesive 123 is cut to an appropriate length.
- the heat transfer plate 21 to which the sheet-like adhesive 123 is temporarily fixed is naturally cooled. Subsequently, as shown in FIG. 31C, the plastic film 123b is peeled off from the epoxy resin layer 123a.
- the heat transfer plate 21 on which the epoxy resin layer 123a is temporarily fixed is put into a drying furnace (not shown), and the epoxy resin layer 123a is heated and cured at a temperature equal to or higher than the curing temperature (for example, 170 ° C.). As a result, the epoxy resin layer 123a is permanently fixed to the heat transfer plate 21.
- the sheet-like adhesive 133 is stacked on the epoxy resin layer 123a so that the epoxy resin layer 133a is in contact with the epoxy resin layer 123a, and is pressurized with a predetermined pressure (for example, 0.5 MPa) by the cylindrical rubber roller 140 and the epoxy resin.
- the sheet adhesive 133 is temporarily fixed to the epoxy resin layer 123a by heating at a first specified temperature (for example, 110 ° C. to 120 ° C.) lower than the curing temperature of the layer 133a. Subsequently, the sheet adhesive 133 is cut to an appropriate length.
- through holes 134 are formed in each region corresponding to the through holes 23b of the insulating layer 23 by, for example, a laser device 150 as shown in FIG. 32A.
- the means for forming the through hole 134 is not limited to the laser device 150, and for example, a drill or the like may be used.
- the plastic film 133b is peeled off from the epoxy resin layer 133a.
- the epoxy resin layer 133a is heated to a temperature equal to or higher than the curing temperature in a drying furnace (not shown).
- the lead frame 120 and the epoxy resin layer 133a are permanently fixed by curing at a temperature (for example, 150 ° C.). Thereby, the first insulating layer 23 is formed.
- the wiring pattern 22 is cut from the support piece 122 of the lead frame 120, and the portion other than the wiring pattern 22 is removed from the lead frame 120 as shown in FIG. 32D.
- the base substrate 24 and the wiring pattern 22 are bonded via the second insulating layer 25 in the same manner as the heat transfer plate 21 and the wiring pattern 22 are bonded via the first insulating layer 23.
- the mounting substrate 2 of FIG. 28 can be obtained.
- the solid light emitting element 3 is bonded to the one surface side of the mounting substrate 2, and then the first electrode 31 and the second electrode 32 of each solid light emitting element 3, the first pattern 22 a, and the second The pattern 22b may be electrically connected via the wire 26. Thereafter, the sealing portion 36 and the color conversion portion 37 may be provided on the one surface side of the mounting substrate 2 as necessary.
- the above-described light emitting unit 1 includes the heat transfer plate 21 and the wiring pattern 22 formed by using the lead frame 120, so that the solid light emitting element 3 is mounted on a metal base printed wiring board. Compared to the above, it is possible to increase the optical output at low cost. In addition, by using the light-emitting unit 1 having a function as a reflector as the heat transfer plate 21, it is possible to reduce light loss in the heat transfer plate 21 and to increase the light output. It becomes possible. Therefore, the light emitting unit 1 of the present embodiment can also reduce power consumption.
- the first metal plate of the heat transfer plate 21 is an aluminum plate, and an aluminum film having a higher purity than the aluminum plate is laminated on the side opposite to the first insulating layer 23 side in the aluminum plate,
- an aluminum film in which an increasing reflection film made of two types of dielectric films having different refractive indexes is used it is possible to increase the light output.
- the light emitting unit 1 uses an LED chip as the solid state light emitting element 3, it is possible to efficiently dissipate the heat generated in the LED chip and to increase the light output. It becomes possible to improve the utilization efficiency of the light emitted from the LED chip.
- the light emitting unit 1 includes the color conversion unit 37 (see FIG.
- the mounting substrate 2 is long and almost the entire wiring pattern 22 is joined to the first insulating layer 23, for example, the first metal plate and the second metal plate Due to the difference in linear expansion coefficient, there is a concern that the heat transfer plate 21 is warped due to a temperature change during manufacturing or use, or the wiring pattern 22 is peeled off from the first insulating layer 23.
- the inventors of the present application have bent the connecting pieces 22 c and 22 d and the connecting piece 22 e described above, but include a base substrate 24 and a second insulating layer 25.
- the heat transfer plate 21 is caused by the difference in linear expansion coefficient between the first metal plate and the second metal plate depending on the length of the heat transfer plate 21 and the length of the first pattern 22a and the second pattern 22b. It was found that 21 may be warped.
- the light emitting unit 1 of the present embodiment includes the above-described base substrate 24. Further, in the light emitting unit 1 of the present embodiment, since the base substrate 24 is formed of the third metal plate, the base substrate 24 and the wiring pattern 22 are electrically insulated from each other in order to electrically insulate the base substrate 24 and the wiring pattern 22. The second insulating layer 25 is interposed therebetween.
- the light emitting unit 1 of the present embodiment includes the mounting substrate 2 and the plurality of solid state light emitting elements 3 arranged on the one surface side of the mounting substrate 2 as described above.
- the light emitting unit 1 includes a heat transfer plate in which the mounting substrate 2 is formed of a first metal plate and each solid light emitting element 3 is mounted on the one surface side, and a second metal plate.
- 21 is provided with a wiring pattern 22 arranged on the other surface side of 21 and to which the solid state light emitting element 3 is electrically connected, and an insulating layer 23 interposed between the heat transfer plate 21 and the wiring pattern 22.
- the light emitting unit 1 can efficiently transfer the heat generated in each solid light emitting element 3 in the lateral direction by the heat transfer plate 21 to dissipate the heat, and in the thickness direction of the heat transfer plate 21. It is also possible to transfer heat and dissipate heat. Therefore, the light emitting unit 1 can improve heat dissipation, can suppress the temperature rise of each solid state light emitting element 3, and can increase the light output.
- the 1st insulating layer 23 contains the filler with high heat conductivity compared with the said thermosetting resin in the light emitting unit 1 of this embodiment, it generate
- the solid light emitting element 3 as an LED chip, it is possible to efficiently dissipate heat generated by the LED chip in the lateral direction by the heat transfer plate 21. Become.
- the 1st metal plate used as the foundation of the heat exchanger plate 21 is an aluminum plate, and the purity is higher than an aluminum plate on the opposite side to the 1st insulating layer 23 side in an aluminum plate. Since an aluminum film is laminated and an aluminum film is laminated with an increased reflection film made of two kinds of dielectric films having different refractive indexes, light emitted from the LED chip and incident on the one surface of the heat transfer plate 21 is efficiently obtained. It becomes possible to reflect.
- the heat transfer plate 21 has a long shape, the solid light emitting elements 3 are arranged along the longitudinal direction of the heat transfer plate 21, and than the second metal plate. Since the difference in the linear expansion coefficient with the first metal plate is small and the long base substrate 24 is arranged on the opposite side of the wiring pattern 22 from the heat transfer plate 21 side, the mounting substrate 2 is made long. Even in this case, the warpage of the heat transfer plate 21 can be suppressed, and the warpage of the entire light emitting unit 1 can be suppressed. As a result, the light emitting unit 1 can be reduced in cost by improving the yield at the time of manufacture, and the reliability as a product can be improved.
- the base substrate 24 is formed of the third metal plate made of the same material as the first metal plate, and the first insulating layer 23 is made of the same material as the first insulating layer 23 between the base substrate 24 and the wiring pattern 22. Since the two insulating layers 25 are interposed, the warpage of the heat transfer plate 21 can be further suppressed.
- the longitudinal dimension of the base substrate 24 is preferably the same as the longitudinal dimension of the heat transfer plate 21.
- the solid light emitting element 3 is an LED chip, and the first electrode 31 and the second electrode 32 are provided on one surface side in the thickness direction.
- Each of the electrodes 32 is electrically connected to the wiring pattern 22 via the wire 26, and the heat transfer plate 21 is formed with a through hole 21b through which each of the wires 26 passes.
- the plate 21 can be die-bonded, and the heat generated in the LED chip is easily transferred in the lateral direction of the heat transfer plate 21, thereby improving the heat dissipation.
- the heat transfer plate is interposed via a submount member that relieves stress acting on the LED chip due to a difference in linear expansion coefficient between the solid light emitting element 3 and the heat transfer plate 21. 21 may be die-bonded.
- the LED chip is a GaN-based blue LED chip and the first metal plate is an aluminum plate, for example, AlN, composite SiC, Si, CuW, or the like can be used as the material of the submount member.
- the submount member is formed with a reflective film that reflects light emitted from the LED chip around the bonding portion with the LED chip on the surface to which the LED chip is bonded (that is, the portion overlapping the LED chip). It is preferable that in addition, when an LED chip having electrodes provided on both sides in the thickness direction is used, the first electrode 31 or the second electrode 32 disposed on the submount member side of the LED chip is electrically connected to the submount member. It is only necessary to provide a conductor pattern to be connected to, and to electrically connect the conductor pattern and the first pattern 22a or the second pattern 22b via the wire 26.
- FIG. 36 shows an example of the lighting device 7 provided with the light emitting unit 1.
- the lighting device 7 is a lighting fixture and includes a light emitting unit 1 and a fixture main body 71 that holds the light emitting unit 1.
- the instrument main body 71 is formed in a long shape (here, rectangular plate shape) having a larger planar size than the light emitting unit 1, and the wiring pattern 22 on the other surface side of the heat transfer plate 21 in the light emitting unit 1 and the base
- a recess 71 a for accommodating the substrate 24 and the like is formed along the longitudinal direction of the instrument body 71.
- the light emission unit 1 is hold
- semicircular notches 21 c are spaced apart in the longitudinal direction of the heat transfer plate 21 at substantially equal intervals on both side edges in the width direction of the heat transfer plate 21. It is formed with. Therefore, if the notch 21c in the heat transfer plate 21 of the light emitting unit 1 is formed in a semicircular shape having a smaller radius than the circular head of the screw constituting the fixture 8, the screw head, the instrument main body 71, Thus, the light emitting unit 1 can be held.
- this illuminating device 7 as shown in FIG. 62 and FIG.
- the light emitting unit 1 is connected to a power supply unit (not shown) via two electric wires 73 connected to the wiring pattern 22 by solder or the like. By supplying power from the power supply unit to the light emitting unit 1, Each solid light emitting element 3 can emit light.
- FIG. 36 only one electric wire 73 connected to the first terminal pattern 22f connected to the first pattern 22a on the one end side in the longitudinal direction of the heat transfer plate 21 is illustrated. On the other end side in the longitudinal direction of the plate 21, another electric wire 73 is connected to a second terminal pattern (not shown) connected to the second pattern 22b.
- the first terminal pattern 22f and the second terminal pattern are constituted by a part of the wiring pattern 22 formed from the lead frame 120 described above.
- each solid light emitting element 3 shines as a point light source by shortening the arrangement pitch of the solid light emitting elements 3. It becomes possible to make it look like a linear light source.
- the lighting device 7 of the present embodiment described above since the above-described light emitting unit 1 is provided, it is possible to improve heat dissipation and to increase the light output.
- the basic configuration of the light emitting unit 1 of the present embodiment is substantially the same as that of the third embodiment, except that the base substrate 24 in the mounting substrate 2 has the same shape as the heat transfer plate 21.
- symbol is attached
- the base substrate 24 has a through hole 24b formed at a portion corresponding to the through hole 21b of the heat transfer plate 21, and a cutout portion 24c formed at a portion corresponding to the cutout portion 21c of the heat transfer plate 21.
- the second insulating layer 25 has the same shape as the first insulating layer 23, and a through hole 25 b is formed in a portion corresponding to the through hole 23 b of the first insulating layer 23.
- the warp of the light emitting unit 1 is further suppressed by making the shape of the base substrate 24 formed of the same material as the heat transfer plate 21 the same as that of the heat transfer plate 21. It becomes possible. Further, the light emitting unit 1 of the present embodiment can share the components of the heat transfer plate 21 and the base substrate 24, and can also reduce the cost.
- the light emitting unit 1 of the present embodiment may be used in place of the light emitting unit 1 of the illumination device 7 described in the third embodiment.
- the base substrate 24 also has a function as a heat transfer plate, and the heat generated in the solid light emitting element 3 on the one surface side of the mounting substrate 2 is transversal by the heat transfer plate 21. The heat generated in the solid-state light-emitting element 3 on the other surface side of the mounting substrate 2 is efficiently transferred in the lateral direction and dissipated.
- the base substrate 24 has a function of a heat transfer plate similar to the heat transfer plate 21 and a function of a reflection plate.
- the basic configuration of the light emitting unit 1 of the present embodiment is substantially the same as that of the third embodiment, except that the base substrate 24 is made of a resin substrate in which a filler having a higher thermal conductivity than the resin is mixed.
- symbol is attached
- the resin of the resin substrate preferably has a small linear expansion coefficient with the first metal plate that is the basis of the heat transfer plate 21.
- the material of the first metal plate is aluminum and the material of the second metal plate is copper. If present, it is preferable to use a vinyl ester resin, an unsaturated polyester resin, or the like.
- a filler it is preferable to use magnesium oxide, boron nitride, aluminum hydroxide, glass fiber etc., for example.
- the filling rate of the filler is preferably about 60 volume percent to 75 volume percent, so that the thermal conductivity of the resin substrate can be about 4 W / m ⁇ K to 10 W / m ⁇ K.
- the thermal conductivity is 5 W / m ⁇ K
- the linear expansion coefficient can be set to about 18 to 22 ppm.
- the thermal conductivity of aluminum is about 23 ppm
- the thermal conductivity of copper is about 17 ppm.
- the base substrate 24 is made of the same material as the first metal plate as in the light emitting unit 1 of FIG. 25 described in the third embodiment. Compared to the case where the second insulating layer 25 is interposed between the wiring pattern 22 and the base substrate 24, the cost can be reduced.
- the base substrate 24 and the wiring pattern 22 can be simultaneously formed at the time of manufacturing, and the cost can be reduced by reducing the manufacturing cost.
- FIG. 40 shows an example of the lighting device 7 provided with the light emitting unit 1.
- the lighting device 7 is a lighting fixture and includes a light emitting unit 1 and a fixture main body 71 that holds the light emitting unit 1.
- the width dimension of the base substrate 24 is set larger than the width dimension of the heat transfer plate 21. Therefore, even when the instrument main body 71 is made of metal and has electrical conductivity, by appropriately setting the width dimension of the base substrate 24, the heat transfer plate 21 or the wiring pattern 22 and the instrument main body 71 can be separated from each other. The creepage distance can be increased, and a predetermined creepage distance can be secured. In the illuminating device 7 of this embodiment, if the fixture main body 71 is made of metal, the heat generated by the light emitting unit 1 can be radiated more efficiently. In addition, when the instrument main body 71 does not have conductivity, the width dimension of the base substrate 24 is not necessarily larger than the width dimension of the heat transfer plate 21.
- the lighting device 7 of the present embodiment includes a plurality of attachments 8 for attaching the light emitting unit 1 to the instrument main body 71.
- the fixture 8 is made of synthetic resin, and extends between the base part 81 that abuts the instrument main body 71 and the side surface along the longitudinal direction of the base substrate 24, and the instrument main body 71.
- a holding portion 82 for holding the light emitting unit 1. 40 has an insertion hole 83 through which a screw (not shown) for fixing the fixture 8 to the instrument body 71 is inserted.
- the fixture 8 is not limited to the one that is fixed to the instrument main body 71 with screws, but may be one that is inserted into the attachment hole 9 of the instrument main body 71 and attached, for example, as shown in FIG.
- the fixture 8 in FIG. 41 has a T-shaped slide piece 84 protruding from one surface of the base 81 on the side of the instrument main body 71.
- the attachment hole 9 of the instrument main body 71 is formed in a T-shape in plan view in which a wide portion 91 into which the slide piece 84 can be inserted and a narrow portion 92 having a narrower opening width than the wide portion 91 are continuous. .
- the slide piece 84 is engaged with the peripheral portion of the narrow portion 92 by inserting the slide piece 84 from the wide portion 91 of the attachment hole 9 and sliding the slide piece 84 toward the narrow portion 92.
- the illuminating device 7 can attach the light emission unit 1 to the instrument main body 71, without using a screw.
- the first protrusion 24d that is thinner than the other part protrudes from one end surface in the longitudinal direction of the base substrate 24, and is thinner than the other part from the other end surface in the longitudinal direction.
- the second projecting piece 24e is projected.
- the first protrusion 24 d has one surface in the thickness direction that is flush with the one surface of the base substrate 24.
- the second projecting piece 24 e has one surface in the thickness direction that is flush with the other surface of the base substrate 24.
- the base substrate 24 is designed so that the total dimension of the thickness dimension of the first projecting piece 24d and the thickness dimension of the second projecting piece 24e is equal to the thickness dimension of the base substrate 24.
- the first protrusion 24d of the base substrate 24 in one of the adjacent light emitting units 1 and the base substrate 24 in the other light emitting unit 1 are arranged.
- the second projecting piece 24e can be arranged so as to overlap each other as shown in FIGS. 42A and 42B.
- the adjacent light emitting units 1 should just electrically connect the wiring patterns 22 with the electric wire (not shown) for feed wiring, a connector (not shown), etc., for example.
- electric power is supplied from one power supply unit with respect to the series circuit of the light emission unit 1, and all the solid light emitting elements 3 of each light emission unit 1 are light-emitted. It becomes possible to make it.
- the wire 26 is bonded to the wiring pattern 22 disposed on the other surface side of the heat transfer plate 21.
- the protrusion 22h inserted into the through hole 23b of the 1 insulating layer 23 and the through hole 21b of the heat transfer plate 21 may be provided, and the wire 26 may be bonded to the distal end surface of the protrusion 22h.
- the through holes 21b are formed on both sides of the solid light emitting element 3 mounting region in the width direction of the heat transfer plate 21.
- the solid state light emitting device 3 is mounted at a portion between the two through holes 21 b arranged in the width direction of the heat transfer plate 21.
- FIG. 44 between two sets arranged in the longitudinal direction of the heat transfer plate 21 among the sets of two through holes 21 b arranged in the width direction of the heat transfer plate 21, You may make it arrange
- the basic configuration of the light emitting unit 1 of the present embodiment is substantially the same as that of the third embodiment, and the shape of the mounting substrate 2 is different.
- symbol is attached
- the light emitting unit 1 of the third embodiment can be used as a light source of a lighting device 7 (see FIG. 36) made of a lighting fixture such as a base light, while the light emitting unit 1 of the first embodiment has, for example, It can be used as a light source of a lighting device (not shown) composed of a lighting device such as a downlight.
- the wiring pattern 22 in the light emitting unit 1 of the present embodiment is also formed using a lead frame (not shown).
- the light emitting unit 1 can supply power from the power supply unit by connecting an electric wire to each of the first terminal pattern 22f and the second terminal pattern 22g with solder or the like.
- the light emitting unit 1 of the present embodiment as in the light emitting unit 1 of the third embodiment, it is possible to improve heat dissipation and increase the light output.
- the double-sided light emitting unit 1 includes a pair of heat transfer plates 21 and 24 that are arranged apart from each other in the thickness direction, and a solid state light emitting device that is mounted on one side of the heat transfer plates 21 and 24 opposite to the opposing surface. 3 and 3.
- the double-sided light emitting unit 1 is arranged between the heat transfer plates 21 and 24, the wiring pattern 22 that is electrically connected to the solid light emitting elements 3 and 3, and the heat transfer plates 21 and 24 and the wiring pattern 22.
- a pair of insulating layers 23 and 25 interposed between the two.
- each of the heat transfer plates 21 and 24 is formed of a first metal plate
- the wiring pattern 22 is formed of a second metal plate.
- the pair of heat transfer plates 21 and 24, the pair of insulating layers 23 and 25, and the wiring pattern 22 constitute the mounting substrate 2 on which all the solid state light emitting devices 3 are mounted.
- Each of the heat transfer plates 21 and 24 is formed in a long shape (here, an elongated rectangular plate shape).
- each of the heat transfer plates 21 and 24 has a plurality of solid light emitting elements 3 arranged along the longitudinal direction of each of the heat transfer plates 21 and 24 on the one surface side.
- the material of the first metal plate serving as the basis of the heat transfer plates 21 and 24 a metal having high thermal conductivity such as aluminum or copper is preferable.
- the material of the first metal plate is not limited to these, and may be stainless steel or steel, for example.
- each heat-transfer plate 21 and 24 has a function as a reflecting plate, and it is more preferable to employ
- the first metal plate is an aluminum plate, and an aluminum film having a purity higher than that of the aluminum plate is laminated on the side opposite to the insulating layers 23 and 25 side of the aluminum plate.
- a reflection increasing film made of two types of dielectric films having different refractive indexes is laminated.
- the two types of dielectric films for example, an SiO 2 film and a TiO 2 film are preferably employed.
- the reflectance with respect to visible light can be 95% or more.
- heat transfer plates 21 and 24 for example, MIRO2 or MIRO (registered trademark) manufactured by alanod can be used.
- MIRO2 or MIRO registered trademark
- an anodized surface may be used.
- the thickness of each of the heat transfer plates 21 and 24 may be set as appropriate within a range of about 0.2 to 3 mm, for example.
- the LED chip is used as the solid-state light emitting element 3, but the LED chip is not limited to this.
- the LED chip may be housed in a package.
- a laser diode semiconductor laser
- an organic EL element or the like may be used as the solid light emitting element 3.
- the solid light-emitting element 3 mounted on each heat transfer plate 21, 24 is provided with a first electrode (anode electrode) 31 and a second electrode (cathode electrode) 32 on one surface side in the thickness direction. The other surface side in the thickness direction is joined to the heat transfer plates 21 and 24 via the joint portion 35.
- each of the first electrode 31 and the second electrode 32 is electrically connected to the wiring pattern 22 via a wire (bonding wire) 26.
- the heat transfer plates 21 and 24 are formed with through holes 21b and 24b through which the respective wires 26 pass.
- the through holes 21 b and 24 b are formed on both sides of the mounting region of the solid state light emitting device 3 in the width direction of the heat transfer plates 21 and 24.
- the through holes 21b and 24b have a circular opening shape.
- the inner diameters of the through holes 21b and 24b are set to 0.5 mm, but this value is an example and is not particularly limited.
- the shape of the through holes 21b and 24b is not limited to a circular shape, and may be, for example, a rectangular shape or an elliptical shape.
- the bonding portion 35 may be formed of a die bond material.
- the LED chip is a GaN-based blue LED chip that emits blue light, and uses a sapphire substrate as a substrate.
- the substrate of the LED chip is not limited to the sapphire substrate, and may be a GaN substrate, a SiC substrate, a Si substrate, or the like.
- the structure of the LED chip is not particularly limited.
- the chip size of the LED chip is not particularly limited. For example, a chip size of 0.3 mm ⁇ , 0.45 mm ⁇ , or 1 mm ⁇ can be used.
- the material and light emission color of the light emitting layer of the LED chip are not particularly limited. That is, the LED chip is not limited to the blue LED chip, and for example, a violet light LED chip, an ultraviolet light LED chip, a red LED chip, a green LED chip, or the like may be used.
- the die bond material for example, a silicone-based die bond material, an epoxy-based die bond material, a silver paste, or the like can be used.
- wire 26 for example, a gold wire, an aluminum wire, or the like can be used.
- the double-sided light emitting unit 1 uses an LED chip as the solid state light emitting element 3
- the solid state light emitting element 3 and the wire 26 are sealed on the one surface side of the heat transfer plates 21 and 24, for example, as shown in FIG. It is preferable to provide the sealed part 36.
- a silicone resin that is a first light transmissive material is used as the material of the sealing portion 36.
- the first light transmissive material is not limited to a silicone resin, and for example, an epoxy resin, an acrylic resin, glass, or the like may be used.
- the double-sided light emitting unit 1 uses an LED chip as the solid state light emitting element 3, in order to obtain high-output white light, a wavelength conversion material that emits light of a color different from the emission color of the LED chip is used. It is preferable that the color conversion unit 37 is provided. As such a color conversion unit 37, for example, a phosphor that is excited by light emitted from the LED chip and emits light of a color different from the emission color of the LED chip is used as the wavelength conversion material. Those containing two light-transmitting materials are preferred.
- the double-sided light emitting unit 1 uses, for example, a blue LED chip as the LED chip and a yellow phosphor as the phosphor of the color conversion unit 37, white light can be obtained. That is, the double-sided light emitting unit 1 can obtain white light by emitting the blue light emitted from the LED chip and the light emitted from the yellow phosphor through the surface of the color conversion unit 37.
- Silicone resin is used as the second translucent material used as the material of the color conversion unit 37, but is not limited to this.
- acrylic resin, glass, organic component and inorganic component are mixed at the nm level or the molecular level.
- a combined organic / inorganic hybrid material may be employed.
- the phosphor used as the material of the color conversion unit 37 is not limited to the yellow phosphor.
- the color rendering can be achieved by using a yellow phosphor and a red phosphor, or using a red phosphor and a green phosphor. It becomes possible to raise.
- the phosphor used as the material of the color conversion unit 37 is not limited to one type of yellow phosphor, and two types of yellow phosphors having different emission peak wavelengths may be used.
- the LED chip can emit white light alone, when the phosphor is dispersed in the sealing portion 36, or when the light color desired to be obtained by the double-sided light emitting unit 1 is the same as the emission color of the LED chip A structure that does not include the color conversion unit 37 can be employed.
- the color conversion unit 37 is preferably in contact with the heat transfer plates 21 and 24.
- the double-sided light emitting unit 1 can dissipate not only the heat generated in the LED chip but also the heat generated in the color conversion section 37 through the heat transfer plates 21 and 24, thereby increasing the light output. It becomes possible.
- the color conversion unit 37 is formed in a semi-cylindrical shape, and the LED chip and the sealing are provided between the heat transfer plates 21 and 24 on the one surface side of the heat transfer plates 21 and 24. It arrange
- the color conversion unit 37 is disposed such that a gas layer (for example, an air layer) 38 is formed between the heat transfer plate 21 and the sealing unit 36 on the one surface side.
- the double-sided light emitting unit 1 may be configured such that the color conversion unit 37 has a hemispherical shape, and the LED chip and the wire 26 that are the solid-state light emitting elements 3 are sealed by the color conversion unit 37.
- the double-sided light emitting unit 1 is configured such that the color conversion unit 37 has a dome shape and the color conversion unit 37 seals the LED chip and the wire 26 that are the solid light emitting elements 3. Also good. Further, as shown in FIG.
- the double-sided light emitting unit 1 has a color conversion unit 37 having a layered shape, and the color conversion unit 37 seals the LED chip and the wire 26, which are the solid light emitting elements 3. Also good.
- the color conversion unit 37 as shown in FIGS. 49 and 54 uses a molded one, and the edge on the heat transfer plates 21 and 24 side (periphery of the opening) is, for example, with respect to the heat transfer plates 21 and 24. What is necessary is just to adhere using adhesives (for example, silicone resin, an epoxy resin, etc.).
- the color conversion part 37 as shown in FIG. 53 can be formed by a shaping
- the color conversion unit 37 as shown in FIG. 55 can be formed by, for example, a coating method using a dispenser, a screen printing method, or the like.
- the wiring pattern 22 is formed of the second metal plate having a linear expansion coefficient different from that of the heat transfer plates 21 and 24 as described above.
- the second metal plate uses a lead frame 120 (see FIG. 52C) formed by punching a metal hoop material with a press.
- the material of the second metal plate is preferably copper having a relatively high thermal conductivity among metals (the thermal conductivity of copper is about 398 W / m ⁇ K), but is not limited to copper, for example, phosphor bronze, etc. Alternatively, a copper alloy (for example, 42 alloy) may be used.
- the thickness of the second metal plate is preferably set in the range of about 100 ⁇ m to 1500 ⁇ m, for example.
- the lead frame 120 is configured such that the wiring pattern 22 is supported on the inner side of the outer frame portion 121 via a support piece 122 (see FIG. 52D).
- a first pattern 22 a to which the first electrode 31 of the solid light emitting element 3 is connected and a second pattern 22 b to which the second electrode 32 is connected are arranged in the width direction of the heat transfer plates 21 and 24. Is arranged.
- the wiring pattern 22 includes a predetermined number (for example, 16) of the first pattern 22a and the second pattern 22b, respectively, and the first pattern 22a and the second pattern 22b respectively include the heat transfer plates 21 and 24.
- the first pattern 22a and the second pattern 22b are formed in a rectangular shape, and are arranged so that the longitudinal directions thereof coincide with the heat transfer plates 21 and 24.
- the first patterns 22a arranged in the longitudinal direction of the heat transfer plates 21 and 24 are divided into two sets, and the first patterns 22a forming the set are connected by the connecting piece 22c. Yes.
- the wiring pattern 22 includes a predetermined number (for example, 16) of second patterns 22b arranged in the longitudinal direction of the heat transfer plates 21 and 24.
- the second patterns 22b are divided into groups each having two sets. The two are connected and electrically connected by a connecting piece 22d.
- the connecting pieces 22c and 22d are linear first portions 22ca and 22da arranged along the width direction of the heat transfer plates 21 and 24, and heat transfer plates from both longitudinal ends of the first portions 22ca and 22da.
- the wiring pattern 22 includes two first patterns 22a forming a set, a connecting piece 22c connecting the two first patterns 22a, two second patterns 22b forming a set,
- One unit pattern 22u is constituted by the connecting piece 22d obtained by connecting the second patterns 22b.
- a plurality of unit units 22 u are arranged along the length direction of the outer frame portion 121.
- the first pattern 22a of one unit pattern 22u and the second pattern 22b of the other unit pattern 22u are connected pieces. 22e is connected and electrically connected.
- the connecting piece 22e is formed narrower than the first pattern 22a and the second pattern 22b.
- the wiring pattern 22 is configured so that a parallel circuit can be configured by connecting in parallel a predetermined number (for example, six) of solid-state light emitting elements 3 arranged in the longitudinal direction of the heat transfer plates 21 and 24 for each unit pattern 22u.
- a parallel circuit can be configured by connecting in parallel a predetermined number (for example, six) of solid-state light emitting elements 3 arranged in the longitudinal direction of the heat transfer plates 21 and 24 for each unit pattern 22u.
- parallel circuits formed for each adjacent unit pattern 22u can be connected in series. Therefore, by supplying power between the first pattern 22a at one end in the longitudinal direction of the heat transfer plates 21 and 24 and the second pattern 22b at the other end, power can be supplied to all the solid state light emitting devices 3. it can.
- the insulating layers 23 and 25 contain a filler made of a filler such as silica or alumina and have a property of lowering viscosity and increasing fluidity upon heating, and a B-stage epoxy resin layer (thermosetting resin). It is formed by thermosetting an epoxy resin layer of a thermosetting sheet adhesive (for example, an adhesive sheet TSA manufactured by Toray Industries, Inc.) in which a plastic film (PET film) is laminated.
- a thermosetting sheet adhesive for example, an adhesive sheet TSA manufactured by Toray Industries, Inc.
- PET film plastic film
- the filler an insulating material having higher thermal conductivity than the epoxy resin that is a thermosetting resin may be used.
- the epoxy resin layer of the sheet-like adhesive has properties of being electrically insulating and having high thermal conductivity, high fluidity during heating, and high adhesion to the uneven surface.
- the thickness of the epoxy resin layer described above is set to 100 ⁇ m, but this value is merely an example, and is not particularly limited. For example, the thickness may be appropriately set in the range of about 50 ⁇ m to 150 ⁇ m.
- the thermal conductivity of the epoxy resin layer is preferably 4 W / m ⁇ K or more.
- the heat transfer plates 21 and 24, the epoxy resin layer, and the lead frame 120 having the wiring pattern 22 may be appropriately pressed.
- the outer size of the insulating layers 23 and 25 may be set as appropriate based on the outer size of the lead frame 120.
- the insulating layers 23 and 25 have electrical insulation and thermal conductivity, and have a function of electrically insulating the heat transfer plates 21 and 24 and the wiring pattern 22 and a function of thermal coupling.
- the insulating layers 23 and 25 are formed with through holes 23b and 25b communicating with the through holes 21b and 24b of the heat transfer plates 21 and 24, respectively. Therefore, when manufacturing the double-sided light emitting unit 1, the wire 26 can be bonded to the wiring pattern 22 through the through holes 21 b and 24 b of the heat transfer plates 21 and 24 and the through holes 23 b and 25 b of the insulating layers 23 and 25.
- the first electrode 31 and the second electrode 32 of the solid state light emitting device 3 are respectively connected to the first pattern 22 a and the second pattern 22 b through the wire 26, and then, for example, a dispenser
- the through holes 21b and 24b and the through holes 23b and 25b are filled with the material of the sealing portion 36 (see FIG. 49) so that the wire 26 does not come into contact with the first metal plate. What is necessary is just to form.
- the wiring pattern 22 is made of a metal material having higher oxidation resistance and corrosion resistance than the second metal plate, and a surface treatment layer (not shown) having high adhesion to the insulating layers 23 and 25 is formed.
- a surface treatment layer (not shown) having high adhesion to the insulating layers 23 and 25 is formed.
- the material of the second metal plate is Cu
- the surface treatment layer for example, a Ni film, a laminated film of Ni film and Au film, a laminated film of Ni film, Pd film and Au film, or the like may be formed.
- the surface treatment layer may be formed by, for example, a plating method.
- the fixing performance between the heat transfer plates 21 and 24 and the wiring pattern 22 may be increased. If the heating temperature is lowered to about 150 ° C. and cured, the electrical insulation between the heat transfer plates 21 and 24 and the wiring pattern 22 may be lowered. That is, there is a trade-off relationship between fixing performance and electrical insulation. Therefore, in this embodiment, as described later, the epoxy resin layers 123a and 133a (see FIGS. 51C and 52B) of the sheet-like adhesives 123 and 133 (see FIGS.
- the epoxy resin layer 123a is cured at 170 ° C. to ensure electrical insulation and thermal conductivity
- the other epoxy resin layer 133a is cured at 150 ° C. to ensure fixing performance and thermal conductivity.
- the other epoxy resin layer 133a and the lead frame 120 are overlapped to overlap the other epoxy resin layer 133a. May be cured at 150 ° C.
- the structure shown in FIG. 51A is obtained by forming the through holes 21b and the like in the heat transfer plate 21.
- a sheet-like adhesive 123 is stacked on the other surface side of the heat transfer plate 21 so that the epoxy resin layer 123a is in contact with the heat transfer plate 21, and a predetermined pressure (
- the sheet adhesive 123 is temporarily fixed to the heat transfer plate 21 by applying pressure at 0.5 MPa and heating at a first specified temperature (eg, 110 ° C. to 120 ° C.) lower than the curing temperature of the epoxy resin layer 123a. To do. Subsequently, the sheet adhesive 123 is cut to an appropriate length.
- the heat transfer plate 21 to which the sheet-like adhesive 123 is temporarily fixed is naturally cooled. Subsequently, as shown in FIG. 51C, the plastic film 123b is peeled off from the epoxy resin layer 123a.
- the heat transfer plate 21 on which the epoxy resin layer 123a is temporarily fixed is put into a drying furnace (not shown), and the epoxy resin layer 123a is heated and cured at a temperature equal to or higher than the curing temperature (for example, 170 ° C.). As a result, the epoxy resin layer 123a is permanently fixed to the heat transfer plate 21.
- the sheet-like adhesive 133 is stacked on the epoxy resin layer 123a so that the epoxy resin layer 133a is in contact with the epoxy resin layer 123a, and is pressurized with a predetermined pressure (for example, 0.5 MPa) by the cylindrical rubber roller 140 and the epoxy resin.
- the sheet adhesive 133 is temporarily fixed to the epoxy resin layer 123a by heating at a first specified temperature (for example, 110 ° C. to 120 ° C.) lower than the curing temperature of the layer 133a. Subsequently, the sheet adhesive 133 is cut to an appropriate length.
- through holes 134 are formed in each region corresponding to the through hole 23b of the insulating layer 23 by, for example, a laser device 150 as shown in FIG. 52A.
- the means for forming the through hole 134 is not limited to the laser device 150, and for example, a drill or the like may be used.
- the plastic film 133b is peeled off from the epoxy resin layer 133a.
- the epoxy resin layer 133a is heated to a temperature equal to or higher than the curing temperature in a drying furnace (not shown).
- the lead frame 120 and the epoxy resin layer 133a are permanently fixed by curing at a temperature (for example, 150 ° C.). Thereby, the insulating layer 23 is formed.
- the wiring pattern 22 is cut from the support piece 122 of the lead frame 120, and the portions other than the wiring pattern 22 in the lead frame 120 are removed as shown in FIG. 52D.
- the mounting substrate 2 is bonded by bonding the heat transfer plate 24 and the wiring pattern 22 via the insulating layer 25 in the same manner as the heat transfer plate 21 and the wiring pattern 22 are bonded via the insulating layer 23. Can be obtained.
- the solid light emitting element 3 is joined to the one surface side of the heat transfer plates 21 and 24, and then the first electrode 31 and the second electrode 32 of each solid light emitting element 3 and the first pattern are combined. What is necessary is just to electrically connect 22a and the 2nd pattern 22b via the wire 26. FIG. Then, the sealing part 36 and the color conversion part 37 should just be provided in the said one surface side of the heat exchanger plates 21 and 24 as needed.
- the double-sided light emitting unit 1 of the present embodiment includes a pair of heat transfer plates 21 and 24 formed of the first metal plate and spaced apart in the thickness direction, and the heat transfer plates 21 and 24.
- the solid light-emitting elements 3 and 3 mounted on the one surface side opposite to each other's facing surface and the second metal plate are disposed between the two heat transfer plates 21 and 24, and each solid light-emitting element 3 Are electrically connected to each other, and a pair of insulating layers 23 and 25 interposed between each of the heat transfer plates 21 and 24 and the wiring pattern 22.
- the double-sided light emitting unit 1 of the present embodiment can efficiently dissipate the heat generated in each solid light emitting element 3 by efficiently transferring the heat in the lateral direction by the heat transfer plates 21 and 24. Therefore, in the double-sided light emitting unit 1 of the present embodiment, it is possible to improve heat dissipation, suppress the temperature rise of each solid state light emitting element 3, and increase the light output.
- the heat generated in the LED chip is transferred in the lateral direction by the heat transfer plates 21 and 24 and efficiently dissipated. Is possible.
- each 1st metal plate used as the foundation of each heat exchanger plate 21 and 24 is an aluminum plate, and it is on the opposite side to the insulating layers 23 and 25 side in each aluminum plate.
- An aluminum film having a purity higher than that of the aluminum plate is laminated, and an increased reflection film made of two kinds of dielectric films having different refractive indexes is laminated on the aluminum film, so that the heat transfer plates 21 and 24 are radiated from the LED chip. It becomes possible to efficiently reflect the light incident on the one surface.
- the double-sided light emitting unit 1 can reduce the light loss in the heat transfer plates 21 and 24 by using the heat transfer plates 21 and 24 having a function as a reflection plate, thereby reducing the light output. High output can be achieved.
- the double-sided light emitting unit 1 can efficiently dissipate the heat generated in the LED chip when the LED chip is used as the solid state light emitting element 3, and the light output can be increased. It becomes possible to improve the utilization efficiency of the light emitted from the LED chip. Further, when the double-sided light emitting unit 1 includes the color conversion unit 37 (see FIG.
- the light emitted from the phosphor that is the wavelength conversion material of the color conversion unit 37 to the heat transfer plates 21 and 24 side Since it is possible to reflect the light emitted from the LED chip and scattered by the phosphors toward the heat transfer plates 21 and 24, it is possible to improve the light utilization efficiency.
- the double-sided light emitting unit 1 of this embodiment is provided with the heat transfer plates 21 and 24 and the wiring pattern 22 formed using the lead frame 120, so that the solid state light emitting device 3 is printed on two metal base prints. Compared with the case where it is mounted on a wiring board, it is possible to increase the optical output at a lower cost.
- the solid light emitting element 3 is an LED chip, and the first electrode 31 and the second electrode 32 are provided on one surface side in the thickness direction.
- Each of the two electrodes 32 is electrically connected to the wiring pattern 22 through the wire 26, and the heat transfer plates 21 and 24 are formed with through holes 21b and 24b through which the respective wires 26 pass.
- the LED chip can be die-bonded to the heat transfer plates 21 and 24, and the heat generated by the LED chip is easily transferred in the lateral direction of the heat transfer plates 21 and 24, so that the heat dissipation can be improved.
- the light is transmitted through a submount member that relieves stress acting on the LED chip due to the difference in linear expansion coefficient between the solid light-emitting element 3 and the heat transfer plates 21 and 24. You may make it die-bond to the hot plates 21 and 24.
- FIG. it is preferable to use the submount member formed in a planar size larger than the chip size of the LED chip.
- the LED chip is a GaN-based blue LED chip and the first metal plate is an aluminum plate, for example, AlN, composite SiC, Si, CuW, or the like can be used as the material of the submount member.
- the submount member is formed with a reflective film that reflects light emitted from the LED chip around the bonding portion with the LED chip on the surface to which the LED chip is bonded (that is, the portion overlapping the LED chip). It is preferable that in addition, when an LED chip having electrodes provided on both sides in the thickness direction is used, the first electrode 31 or the second electrode 32 disposed on the submount member side of the LED chip is electrically connected to the submount member. It is only necessary to provide a conductor pattern to be connected to, and to electrically connect the conductor pattern and the first pattern 22a or the second pattern 22b via the wire 26.
- the through holes 21 b are formed on both sides of the solid light emitting element 3 mounting region in the width direction of the heat transfer plate 21.
- the solid state light emitting device 3 is mounted at a portion between the two through holes 21 b arranged in the width direction of the heat transfer plate 21.
- FIG. 56 between two sets arranged in the longitudinal direction of the heat transfer plate 21 among the sets of two through holes 21 b arranged in the width direction of the heat transfer plate 21, You may make it arrange
- the double-sided light emitting unit 1 of the present embodiment can be used as a light source for various lighting devices.
- a straight tube LED lamp 700 as shown in FIG. 57 can be configured as an example of an illumination device including the double-sided light emitting unit 1 of the present embodiment.
- general straight tube LED lamps for example, the Japan Light Bulb Industry Association has established a standard “Straight tube LED lamp system with L-type pin cap GX16t-5 (for general lighting)” (JEL 801).
- JEL 801 the Japan Light Bulb Industry Association has established a standard “Straight tube LED lamp system with L-type pin cap GX16t-5 (for general lighting)”
- the straight tube LED lamp 700 of FIG. 57 is designed to satisfy the JEL 801 standard.
- a straight tube LED lamp 700 of FIG. 57 is provided on each of a straight tubular tube body 702 formed of a light-transmitting material (for example, glass) and one end and the other end of the tube body 702 in the longitudinal direction.
- the above-described double-sided light emitting unit 1 (see FIG. 46 and the like) is housed in the tube main body 702.
- a base 703 provided at one end in the longitudinal direction of the tube main body 702 is held by the first lamp socket of the first lamp socket and the second lamp socket of the lighting fixture, and the double-sided light emitting unit 1 in the tube main body 702.
- Two first lamp pins (terminals) 714 for supplying power to the power source are provided.
- the base 704 at the other end in the longitudinal direction of the tube main body 702 is provided with a single second lamp pin (terminal) 715 for grounding that is held by the second lamp socket.
- the two first lamp pins 714 protrude from the end surface (first base reference surface) of the base 703 to the side opposite to the tube body 702 side.
- the first lamp pin 714 is electrically connected to the wiring pattern 22 of the double-sided light emitting unit 1 housed in the tube main body 702.
- Each first lamp pin 714 has an L-shaped portion protruding from the end face of the base 703, a pin body 714a protruding along the longitudinal direction of the tube body 702, and a tube body 702 from the tip of the pin body 714a. And a key portion 714b extending along one radial direction. Here, the two key portions 714b are extended in directions away from each other.
- the first lamp pin 714 is formed by bending an elongated conductive plate.
- the second lamp pin 715 protrudes from the end surface (second base reference surface) of the base 704 to the side opposite to the tube body 702 side.
- the second lamp pin 715 has a T-shaped portion protruding from the end surface of the base 704, and is provided at the pin body 715a protruding along the longitudinal direction of the tube body 702 and the tip of the pin body 715a.
- a terminal portion 715b having an oblong shape when viewed from the front.
- heat radiation can be improved as compared with the conventional straight tube LED lamp and the illumination device 600 shown in FIG. 66, and the light output is high. Can be achieved.
- the lighting device including the double-sided light emitting unit 1 of the present embodiment is not limited to the straight tube LED lamp 700 described above, and may be, for example, a lighting fixture including a fixture body that houses the double-sided light emitting unit 1.
- semicircular cutouts 21 c and 24 c are substantially spaced apart in the longitudinal direction of the heat transfer plates 21 and 24 at both side edges in the width direction of the heat transfer plates 21 and 24. It is formed at equal intervals. Therefore, the notches 21c and 24c in the heat transfer plates 21 and 24 of the double-sided light emitting unit 1 should be semicircular with a radius smaller than the circular head of the screw for attaching the double-sided light emitting unit 1 to the instrument body.
- the double-sided light emitting unit 1 can be held between the screw head and the instrument body. In this illuminating device, the stress applied to each solid-state light emitting element 3 and each joint 35 can be reduced.
- the arrangement of the double-sided light emitting unit 1 in the lighting device is not particularly limited.
- a plurality of double-sided light emitting units 1 may be arranged on a straight line. ) Or a connector (not shown) or the like.
- power is supplied from one power supply unit to the series circuit of the double-sided light emitting units 1, and all the solid state light emitting elements 3 of each double-sided light emitting unit 1 are supplied. Can be emitted.
- the double-sided light emitting unit 1 of the present embodiment constitutes a light emitting unit.
- the basic configuration of the light emitting unit 1 of the present embodiment is substantially the same as that of the seventh embodiment, and the shape of the mounting substrate 2 is different.
- symbol is attached
- the shape of the heat transfer plates 21 and 24 in plan view is an octagonal shape, and each of the heat transfer plates 21 and 24 has a plurality of (12 in the illustrated example).
- ⁇ 6) solid state light emitting devices 3 are arranged in a two-dimensional array.
- the shape of the heat transfer plates 21 and 24 is not limited to the octagonal shape, and may be other polygonal shapes, circular shapes, elliptical shapes, or the like.
- the wiring pattern 22 in the double-sided light emitting unit 1 of the present embodiment is also formed using a lead frame (not shown).
- the double-sided light emitting unit 1 supplies power from the power supply unit by connecting the wires 63 and 63 (see FIG. 59) to the first terminal pattern 22f and the second terminal pattern 22g of the wiring pattern 22 by soldering or the like. it can.
- the double-sided light emitting unit 1 of the present embodiment as with the double-sided light emitting unit 1 of Embodiment 7, it is possible to improve heat dissipation and increase the light output.
- a lighting fixture 40 having a configuration shown in FIG. 59 is illustrated.
- the 59 has a flat first cover member 50 in which a housing recess 51 for housing the double-sided light emitting unit 1 is formed on one surface in the thickness direction, and a housing recess for the first cover member 50.
- the instrument main body is constituted by the second cover member 60 accommodated in 51 so as to cover the double-sided light emitting unit 1.
- a spacer (not shown) is provided between each of the double-sided light emitting unit 1 and the first cover member 50 and the second cover member 60.
- the first cover member 50 is formed with a notch 54 through which the electric wires 63 and 63 for feeding power to the double-sided light emitting unit 1 are inserted.
- a power supply unit (not shown) provided separately is provided on the side opposite to one end connected to the first terminal pattern 22f and the second terminal pattern 22g of the double-sided light emitting unit 1.
- a second connector 70 is provided that is detachably connected to a first output connector (not shown).
- the first cover member 50 and the second cover member 60 may be entirely formed of a translucent material, or only a portion for extracting light emitted from the double-sided light emitting unit 1 is formed of the translucent material. May be.
- the lighting fixture which comprises an illuminating device does not specifically limit the shape and structure of a fixture main body. Further, the lighting device is not limited to the lighting fixture 40, and may be a display device, for example.
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Abstract
Description
まず、リードフレームについて図1~図3を参照しながら説明する。
図18A、図18Bに示す本実施形態のリードフレーム230の基本構成は実施形態1と略同じであり、複数の単位ユニット233aが、外枠部231により囲まれた領域の中心を取り囲むように配置されている点などが相違する。なお、実施形態1と同様の構成要素には同一の符号を付して説明を適宜省略する。また、図18Aは、リードフレーム230の2ピッチ分の概略斜視図である。
以下、本実施形態の発光ユニット1について図25~図32に基づいて説明する。
以下、本実施形態の発光ユニット1について図37および図38に基づいて説明する。
以下、本実施形態の発光ユニット1について図39に基づいて説明する。
以下、本実施形態の発光ユニット1について図45に基づいて説明する。
以下、本実施形態の発光ユニット(以下、両面発光ユニットと称する)1について図46~図52に基づいて説明する。
以下、本実施形態の両面発光ユニット1について図58に基づいて説明する。なお、本実施形態では、両面発光ユニット1が、発光ユニットを構成している。
Claims (31)
- 金属板を用いて形成され1ピッチの外枠部の内側に支持片を介して所望の配線パターンが支持されたリードフレームであって、前記配線パターンは、固体発光素子を搭載するダイパッドと、前記ダイパッドから前記ダイパッドを取り囲むように延設されたヒートシンクと、一方の電極が前記ヒートシンクに電気的に接続される前記固体発光素子の他方の電極と電気的に接続されるリードとを具備する単位ユニットを複数備え、互いに隣り合う前記単位ユニットの一方の前記単位ユニットの前記リードと他方の前記単位ユニットの前記ヒートシンクとが連結され電気的に直列接続されてなることを特徴とするリードフレーム。
- 前記リードは、前記ヒートシンクの外周縁から前記ダイパッドに向かって形成された切込溝の内側に配置されてなることを特徴とする請求項1記載のリードフレーム。
- 前記複数の前記単位ユニットが、前記外枠部の長さ方向に沿って配列されてなることを特徴とする請求項1または請求項2記載のリードフレーム。
- 前記配線パターンは、前記複数の前記単位ユニットに跨って前記ヒートシンクの側方に配置された配線を備え、前記配線は、前記外枠部の前記長さ方向における一端の前記単位ユニットの前記リードと連結されて電気的に接続されてなることを特徴とする請求項3記載のリードフレーム。
- 前記配線パターンは、前記複数の前記単位ユニットに跨って前記ヒートシンクの側方に配置された配線を備えることを特徴とする請求項3記載のリードフレーム。
- 前記複数の前記単位ユニットが、前記外枠部により囲まれた領域の中心を取り囲むように配置されてなることを特徴とする請求項1または請求項2記載のリードフレーム。
- 第1の金属板を用いて形成され主表面側に配置される複数の固体発光素子の直列接続が可能な配線パターンを有するモジュールと、前記モジュールの裏面側に配置された第2の金属板と、電気絶縁性および熱伝導性を有し前記モジュールと前記第2の金属板との間に介在して前記配線パターンと前記第2の金属板とを熱結合する絶縁層とを備え、前記配線パターンは、前記固体発光素子を搭載するダイパッドと、前記ダイパッドから前記ダイパッドを取り囲むように延設されたヒートシンクと、一方の電極が前記ヒートシンクに電気的に接続される前記固体発光素子の他方の電極と電気的に接続されるリードとを具備する単位ユニットを複数備え、互いに隣り合う前記単位ユニットの一方の前記単位ユニットの前記リードと他方の前記単位ユニットの前記ヒートシンクとが連結され電気的に直列接続されてなり、前記モジュールは、前記単位ユニットごとに前記ダイパッドと前記ヒートシンクと前記リードとを保持する絶縁性材料からなる保持部を備えることを特徴とする配線板。
- 前記モジュールは、前記配線パターンの側縁に前記保持部との密着性を向上させる凹凸構造部が設けられてなることを特徴とする請求項7記載の配線板。
- 前記配線パターンの裏面に、前記第1の金属板に比べて耐酸化性および耐腐食性の高い金属材料からなり前記絶縁層との密着性を高める第1のめっき層が形成されてなることを特徴とする請求項7または請求項8記載の配線板。
- 前記ダイパッドおよび前記固体発光素子と電気的に接続される部位の主表面に、前記第1の金属板に比べて耐酸化性および耐腐食性の高い金属材料からなる第2のめっき層が形成されてなることを特徴とする請求項7ないし請求項9のいずれか1項に記載の配線板。
- 前記第1の金属板の材料がCuであり、前記第2のめっき層は、Ni膜とPd膜とAu膜との積層膜からなることを特徴とする請求項10記載の配線板。
- 互いに隣り合う前記単位ユニットの一方の前記単位ユニットの前記リードと他方の前記単位ユニットの前記ヒートシンクとを連結する連結片を備え、前記連結片と前記絶縁層との間に空間を有し、前記連結片は、前記第1の金属板と前記第2の金属板との線膨張率差に起因して前記配線パターンに働く応力を緩和するように曲がった応力緩和部を備えていることを特徴とする請求項7ないし請求項11のいずれか1項に記載の配線板。
- 請求項7ないし請求項12のいずれか1項に記載の配線板の前記各ダイパッドそれぞれに前記固体発光素子が搭載され、前記固体発光素子は、厚み方向の一面側に前記一方の電極が設けられるととともに他面側に前記他方の電極が設けられたものであり、前記一方の電極が前記ダイパッドを介して前記ヒートシンクに電気的に接続されるとともに前記他方の電極がワイヤを介して前記リードと電気的に接続されてなることを特徴とする発光ユニット。
- 請求項7ないし請求項12のいずれか1項に記載の配線板の前記各ダイパッドそれぞれに前記固体発光素子が搭載され、前記固体発光素子は、厚み方向の一面側に前記一方の電極と前記他方の電極とが設けられたものであり、前記一方の電極が第1のワイヤを介して前記ヒートシンクと電気的に接続され、前記他方の電極が第2のワイヤを介して前記リードと電気的に接続されてなることを特徴とする発光ユニット。
- 前記単位ユニットごとに、前記固体発光素子から放射された光の配光を制御する光学部材であって前記配線板との間に前記固体発光素子を収納するドーム状の光学部材と、前記光学部材と前記配線板とで囲まれた空間に充実され前記固体発光素子を封止した第1の透光性材料からなる封止部と、前記固体発光素子から放射され前記封止部および前記光学部材を透過した光によって励起されて前記固体発光素子の発光色とは異なる色の光を放射する蛍光体および第2の透光性材料により形成され前記光学部材を囲む形で配設されたドーム状の色変換部材とを備え、前記配線板の前記保持部は、前記光学部材の外側に、前記光学部材を前記配線板に固着する際に溢れ出た前記第1の透光性材料を堰き止める環状の堰部が突設され、前記堰部は、前記堰部の内周面から内方へ延出し前記堰部の中心と前記光学部材の中心軸とをセンタリングする複数の爪部が周方向に離間して設けられ、且つ、前記色変換部材の位置決め部を兼ねていることを特徴とする請求項13または請求項14記載の発光ユニット。
- 実装基板と、前記実装基板の一面側に配置された複数の固体発光素子とを備え、前記実装基板は、第1金属板により形成され前記各固体発光素子が一面側に搭載される伝熱板と、第2金属板により形成されてなり前記伝熱板の他面側に配置され前記固体発光素子が電気的に接続される配線パターンと、前記伝熱板と前記配線パターンとの間に介在する絶縁層とを備えることを特徴とする発光ユニット。
- 前記絶縁層は、熱硬化性樹脂に前記熱硬化性樹脂に比べて熱伝導率の高いフィラーを含有していることを特徴とする請求項16記載の発光ユニット。
- 前記固体発光素子は、LEDチップであることを特徴とする請求項16または請求項17記載の発光ユニット。
- 前記伝熱板は、前記第1金属板がアルミニウム板であり、前記アルミニウム板における前記絶縁層側とは反対側に前記アルミニウム板よりも高純度のアルミニウム膜が積層され、前記アルミニウム膜に屈折率の異なる2種類の誘電体膜からなる増反射膜が積層されてなることを特徴とする請求項18記載の発光ユニット。
- 前記LEDチップから放射された光によって励起されて前記LEDチップの発光色とは異なる色の光を放射する蛍光体および透光性材料を含む色変換部を備え、前記色変換部は、前記伝熱板に接していることを特徴とする請求項18または請求項19記載の発光ユニット。
- 前記各LEDチップは、厚み方向の一面側に第1電極と第2電極とが設けられたものであり、前記第1電極および前記第2電極の各々がワイヤを介して前記配線パターンと電気的に接続されてなり、前記伝熱板は、前記各ワイヤの各々を通す貫通孔が形成されてなることを特徴とする請求項18ないし請求項20のいずれか1項に記載の発光ユニット。
- 前記伝熱板が長尺状の形状であり、前記固体発光素子が前記伝熱板の長手方向に沿って配置されてなり、前記第2金属板よりも前記第1金属板との線膨張率差が小さく前記配線パターンにおける前記伝熱板側とは反対側に配置される長尺状のベース基板を備えることを特徴とする請求項16ないし請求項21のいずれか1項に記載の発光ユニット。
- 前記ベース基板は、樹脂に前記樹脂よりも熱伝導率の高いフィラーを混合した樹脂基板からなることを特徴とする請求項22記載の発光ユニット。
- 前記ベース基板が前記第1金属板と同じ材料からなる第3金属板により形成され、前記ベース基板と前記配線パターンとの間に前記絶縁層である第1絶縁層と同じ材料からなる第2絶縁層が介在していることを特徴とする請求項22記載の発光ユニット。
- 請求項16ないし請求項24のいずれか1項に記載の発光ユニットを備えることを特徴とする照明装置。
- 第1金属板により形成されてなり厚み方向に離間して配置される一対の伝熱板と、前記各伝熱板における互いの対向面とは反対の一面側に搭載された固体発光素子と、第2金属板により形成されてなり前記両伝熱板の間に配置され前記各固体発光素子が電気的に接続される配線パターンと、前記各伝熱板と前記配線パターンとの各々の間に介在する一対の絶縁層とを備えることを特徴とする発光ユニット。
- 前記固体発光素子は、LEDチップであることを特徴とする請求項26記載の発光ユニット。
- 前記伝熱板は、前記第1金属板がアルミニウム板であり、前記アルミニウム板における前記絶縁層側とは反対側に前記アルミニウム板よりも高純度のアルミニウム膜が積層され、前記アルミニウム膜に屈折率の異なる2種類の誘電体膜からなる増反射膜が積層されてなることを特徴とする請求項27記載の発光ユニット。
- 前記LEDチップから放射された光によって励起されて前記LEDチップの発光色とは異なる色の光を放射する蛍光体および透光性材料を含む色変換部を備え、前記色変換部は、前記伝熱板に接していることを特徴とする請求項27または請求項28記載の発光ユニット。
- 前記各LEDチップは、厚み方向の一面側に第1電極と第2電極とが設けられたものであり、前記第1電極および前記第2電極の各々がワイヤを介して前記配線パターンと電気的に接続されてなり、前記伝熱板は、前記各ワイヤの各々を通す貫通孔が形成されてなることを特徴とする請求項27ないし請求項29のいずれか1項に記載の発光ユニット。
- 請求項26ないし請求項30のいずれか1項に記載の発光ユニットを備えることを特徴とする照明装置。
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Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012134305A (ja) * | 2010-12-21 | 2012-07-12 | Panasonic Corp | 発光装置及びそれを用いた照明装置 |
WO2013190848A1 (ja) * | 2012-06-21 | 2013-12-27 | パナソニック株式会社 | 実装基板およびその製造方法、ledモジュール |
JP2014007203A (ja) * | 2012-06-21 | 2014-01-16 | Panasonic Corp | 実装基板およびその製造方法、ledモジュール |
WO2014031567A1 (en) * | 2012-08-22 | 2014-02-27 | Metrospec Technology, L.L.C. | Led lighting systems and methods |
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US9341355B2 (en) | 2008-03-06 | 2016-05-17 | Metrospec Technology, L.L.C. | Layered structure for use with high power light emitting diode systems |
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Publication number | Priority date | Publication date | Assignee | Title |
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KR101869554B1 (ko) * | 2011-08-19 | 2018-06-21 | 엘지이노텍 주식회사 | 표시장치 |
WO2013054483A1 (ja) * | 2011-10-11 | 2013-04-18 | パナソニック株式会社 | 発光装置およびこれを用いた照明装置 |
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US8587099B1 (en) * | 2012-05-02 | 2013-11-19 | Texas Instruments Incorporated | Leadframe having selective planishing |
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US10381294B2 (en) * | 2016-02-01 | 2019-08-13 | Advanced Semiconductor Engineering, Inc. | Semiconductor package device |
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Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10502772A (ja) * | 1994-12-08 | 1998-03-10 | クァンタム・ディバイセズ・インコーポレーテッド | 光電子デバイスアレー及びその製造方法 |
JPH11162233A (ja) | 1997-11-25 | 1999-06-18 | Matsushita Electric Works Ltd | 光源装置 |
JP2000353826A (ja) * | 1999-06-09 | 2000-12-19 | Sanyo Electric Co Ltd | 混成集積回路装置および光照射装置 |
JP2001044512A (ja) * | 1999-07-29 | 2001-02-16 | Sanyo Electric Co Ltd | 混成集積回路装置 |
JP2001057446A (ja) * | 1999-06-09 | 2001-02-27 | Sanyo Electric Co Ltd | 混成集積回路装置 |
JP2001203395A (ja) * | 2000-01-20 | 2001-07-27 | Sanyo Electric Co Ltd | 混成集積回路装置 |
JP2006066631A (ja) * | 2004-08-26 | 2006-03-09 | Kyocera Corp | 配線基板および電気装置並びに発光装置 |
JP2006093470A (ja) | 2004-09-24 | 2006-04-06 | Toshiba Corp | リードフレーム、発光装置、発光装置の製造方法 |
JP2006147999A (ja) * | 2004-11-24 | 2006-06-08 | Kyocera Corp | 発光素子用配線基板並びに発光装置 |
JP2007035890A (ja) | 2005-07-26 | 2007-02-08 | Matsushita Electric Works Ltd | 光源装置、及びそれを用いた照明器具 |
WO2008078791A1 (ja) * | 2006-12-27 | 2008-07-03 | Showa Denko K.K. | 発光装置の製造方法 |
JP2009054894A (ja) * | 2007-08-28 | 2009-03-12 | Panasonic Electric Works Co Ltd | 発光装置 |
JP2009076576A (ja) * | 2007-09-19 | 2009-04-09 | Sharp Corp | 発光装置 |
JP2009105379A (ja) * | 2007-10-05 | 2009-05-14 | Panasonic Electric Works Co Ltd | 発光装置 |
JP2009130299A (ja) * | 2007-11-27 | 2009-06-11 | Panasonic Electric Works Co Ltd | 発光装置 |
JP2009130300A (ja) * | 2007-11-27 | 2009-06-11 | Panasonic Electric Works Co Ltd | 発光装置の製造方法 |
WO2009119461A1 (ja) * | 2008-03-26 | 2009-10-01 | 島根県 | 半導体発光モジュールおよびその製造方法 |
JP2009266432A (ja) | 2008-04-22 | 2009-11-12 | Meiwa Bendeikusu Kk | Led発光体を内蔵してなる照明装置 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6548832B1 (en) | 1999-06-09 | 2003-04-15 | Sanyo Electric Co., Ltd. | Hybrid integrated circuit device |
US6489637B1 (en) | 1999-06-09 | 2002-12-03 | Sanyo Electric Co., Ltd. | Hybrid integrated circuit device |
JP2001068742A (ja) | 1999-08-25 | 2001-03-16 | Sanyo Electric Co Ltd | 混成集積回路装置 |
CN100504146C (zh) * | 2001-08-09 | 2009-06-24 | 松下电器产业株式会社 | Led照明装置和led照明光源 |
WO2005106973A1 (ja) | 2004-04-27 | 2005-11-10 | Kyocera Corporation | 発光素子用配線基板 |
KR100631901B1 (ko) * | 2005-01-31 | 2006-10-11 | 삼성전기주식회사 | Led 패키지 프레임 및 이를 채용하는 led 패키지 |
KR100610650B1 (ko) * | 2005-06-17 | 2006-08-09 | (주) 파이오닉스 | 엘이디 패키지 및 그 제조방법 |
JP2007258619A (ja) * | 2006-03-24 | 2007-10-04 | Ngk Spark Plug Co Ltd | 発光素子収納用パッケージ |
US8779444B2 (en) * | 2006-11-03 | 2014-07-15 | Relume Technologies, Inc. | LED light engine with applied foil construction |
JP4245041B2 (ja) * | 2006-11-27 | 2009-03-25 | セイコーエプソン株式会社 | 照明装置及びプロジェクタ |
EP1928026A1 (en) * | 2006-11-30 | 2008-06-04 | Toshiba Lighting & Technology Corporation | Illumination device with semiconductor light-emitting elements |
KR100802393B1 (ko) * | 2007-02-15 | 2008-02-13 | 삼성전기주식회사 | 패키지 기판 및 그 제조방법 |
US7938558B2 (en) * | 2007-05-04 | 2011-05-10 | Ruud Lighting, Inc. | Safety accommodation arrangement in LED package/lens structure |
TW200923262A (en) * | 2007-11-30 | 2009-06-01 | Tysun Inc | High heat dissipation optic module for light emitting diode and its manufacturing method |
US7973332B2 (en) * | 2008-05-26 | 2011-07-05 | Rohm Co., Ltd. | Lamp and method of making the same |
-
2011
- 2011-04-26 KR KR1020127026385A patent/KR101495580B1/ko active IP Right Grant
- 2011-04-26 CN CN201180020874.8A patent/CN102893418B/zh not_active Expired - Fee Related
- 2011-04-26 WO PCT/JP2011/060193 patent/WO2011136236A1/ja active Application Filing
- 2011-04-26 EP EP11775017.4A patent/EP2565951B1/en active Active
- 2011-04-26 US US13/641,483 patent/US8967827B2/en not_active Expired - Fee Related
Patent Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10502772A (ja) * | 1994-12-08 | 1998-03-10 | クァンタム・ディバイセズ・インコーポレーテッド | 光電子デバイスアレー及びその製造方法 |
JPH11162233A (ja) | 1997-11-25 | 1999-06-18 | Matsushita Electric Works Ltd | 光源装置 |
JP2000353826A (ja) * | 1999-06-09 | 2000-12-19 | Sanyo Electric Co Ltd | 混成集積回路装置および光照射装置 |
JP2001057446A (ja) * | 1999-06-09 | 2001-02-27 | Sanyo Electric Co Ltd | 混成集積回路装置 |
JP2001044512A (ja) * | 1999-07-29 | 2001-02-16 | Sanyo Electric Co Ltd | 混成集積回路装置 |
JP2001203395A (ja) * | 2000-01-20 | 2001-07-27 | Sanyo Electric Co Ltd | 混成集積回路装置 |
JP2006066631A (ja) * | 2004-08-26 | 2006-03-09 | Kyocera Corp | 配線基板および電気装置並びに発光装置 |
JP2006093470A (ja) | 2004-09-24 | 2006-04-06 | Toshiba Corp | リードフレーム、発光装置、発光装置の製造方法 |
JP2006147999A (ja) * | 2004-11-24 | 2006-06-08 | Kyocera Corp | 発光素子用配線基板並びに発光装置 |
JP2007035890A (ja) | 2005-07-26 | 2007-02-08 | Matsushita Electric Works Ltd | 光源装置、及びそれを用いた照明器具 |
WO2008078791A1 (ja) * | 2006-12-27 | 2008-07-03 | Showa Denko K.K. | 発光装置の製造方法 |
JP2009054894A (ja) * | 2007-08-28 | 2009-03-12 | Panasonic Electric Works Co Ltd | 発光装置 |
JP2009076576A (ja) * | 2007-09-19 | 2009-04-09 | Sharp Corp | 発光装置 |
JP2009105379A (ja) * | 2007-10-05 | 2009-05-14 | Panasonic Electric Works Co Ltd | 発光装置 |
JP2009130299A (ja) * | 2007-11-27 | 2009-06-11 | Panasonic Electric Works Co Ltd | 発光装置 |
JP2009130300A (ja) * | 2007-11-27 | 2009-06-11 | Panasonic Electric Works Co Ltd | 発光装置の製造方法 |
WO2009119461A1 (ja) * | 2008-03-26 | 2009-10-01 | 島根県 | 半導体発光モジュールおよびその製造方法 |
JP2009266432A (ja) | 2008-04-22 | 2009-11-12 | Meiwa Bendeikusu Kk | Led発光体を内蔵してなる照明装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2565951A4 |
Cited By (16)
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US11304308B2 (en) | 2008-02-14 | 2022-04-12 | Metrospec Technology, L.L.C. | Flexible circuit board interconnection and methods |
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US9736946B2 (en) | 2008-02-14 | 2017-08-15 | Metrospec Technology, L.L.C. | Flexible circuit board interconnection and methods |
US9341355B2 (en) | 2008-03-06 | 2016-05-17 | Metrospec Technology, L.L.C. | Layered structure for use with high power light emitting diode systems |
US9357639B2 (en) | 2008-03-18 | 2016-05-31 | Metrospec Technology, L.L.C. | Circuit board having a plated through hole through a conductive pad |
JP2012134305A (ja) * | 2010-12-21 | 2012-07-12 | Panasonic Corp | 発光装置及びそれを用いた照明装置 |
US20140091337A1 (en) * | 2012-05-23 | 2014-04-03 | Nitto Denko Corporation | Light-emitting device, light-emitting device assembly, and electrode-bearing substrate |
JP2014007206A (ja) * | 2012-06-21 | 2014-01-16 | Panasonic Corp | 実装基板およびその製造方法、ledモジュール |
JP2014007203A (ja) * | 2012-06-21 | 2014-01-16 | Panasonic Corp | 実装基板およびその製造方法、ledモジュール |
WO2013190848A1 (ja) * | 2012-06-21 | 2013-12-27 | パナソニック株式会社 | 実装基板およびその製造方法、ledモジュール |
WO2014031567A1 (en) * | 2012-08-22 | 2014-02-27 | Metrospec Technology, L.L.C. | Led lighting systems and methods |
JP2014078686A (ja) * | 2012-08-31 | 2014-05-01 | Nichia Chem Ind Ltd | 発光装置及びその製造方法 |
US10249804B2 (en) | 2016-07-19 | 2019-04-02 | Nichia Corporation | Semiconductor device, base, and method for manufacturing same |
CN110504244A (zh) * | 2018-05-18 | 2019-11-26 | 深圳市聚飞光电股份有限公司 | Led及发光装置 |
US10849200B2 (en) | 2018-09-28 | 2020-11-24 | Metrospec Technology, L.L.C. | Solid state lighting circuit with current bias and method of controlling thereof |
Also Published As
Publication number | Publication date |
---|---|
CN102893418B (zh) | 2015-07-22 |
US8967827B2 (en) | 2015-03-03 |
US20130070452A1 (en) | 2013-03-21 |
CN102893418A (zh) | 2013-01-23 |
KR20120123601A (ko) | 2012-11-08 |
EP2565951B1 (en) | 2019-07-31 |
EP2565951A1 (en) | 2013-03-06 |
EP2565951A4 (en) | 2017-05-03 |
KR101495580B1 (ko) | 2015-02-25 |
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