WO2010095785A1 - 발광소자 및 발광소자 패키지 - Google Patents
발광소자 및 발광소자 패키지 Download PDFInfo
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- WO2010095785A1 WO2010095785A1 PCT/KR2009/003039 KR2009003039W WO2010095785A1 WO 2010095785 A1 WO2010095785 A1 WO 2010095785A1 KR 2009003039 W KR2009003039 W KR 2009003039W WO 2010095785 A1 WO2010095785 A1 WO 2010095785A1
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- conductive semiconductor
- semiconductor layer
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- light emitting
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Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/44—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 coatings, e.g. passivation layer or anti-reflective coating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L2224/85—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a wire connector
- H01L2224/85909—Post-treatment of the connector or wire bonding area
- H01L2224/8592—Applying permanent coating, e.g. protective coating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/02—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 bodies
- H01L33/08—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 bodies with a plurality of light emitting regions, e.g. laterally discontinuous light emitting layer or photoluminescent region integrated within the semiconductor body
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/02—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 bodies
- H01L33/20—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 bodies with a particular shape, e.g. curved or truncated substrate
Definitions
- Embodiments relate to a light emitting device and a light emitting device package.
- LED Light Emitting Device
- LED is a semiconductor device that converts current into light, and has been used as a light source for electronic devices including information and communication devices, along with green LEDs, starting with the commercialization of red LEDs.
- nitride semiconductors such as Gallium Nitride (GaN) semiconductors have high thermal stability and broad bandgap, and can be combined with other elements such as In and Al to produce semiconductor layers emitting green, blue and white light. It has been attracting much attention in the field of high power electronic device development including LED because it can be easily controlled.
- GaN Gallium Nitride
- Embodiments provide a light emitting device and a light emitting device package in which a carrier supplied from the outside can increase a current spreading effect to the inside of the device.
- the embodiment is to provide a light emitting device and a light emitting device package that can provide a one-wire-bonding packaging.
- the embodiment is to provide a light emitting device and a light emitting device package capable of heat emission through a large area.
- the embodiment is to provide a light emitting device and a light emitting device package that can improve the current spreading and thermal properties to improve the separation structure for a large area chip.
- a light emitting device includes a first conductive semiconductor layer, an active layer, and a second conductive semiconductor layer on a substrate; A first insulating layer surrounding an outer portion of the second conductive semiconductor layer and the active layer; And a first electrode layer formed on an outer portion of the first conductive semiconductor layer.
- the light emitting device includes a light emitting structure including a first conductive semiconductor layer, an active layer, a second conductive semiconductor layer; A first electrode on the first conductive semiconductor layer exposed by removing a portion of the second conductive semiconductor layer and the active layer; A third insulating layer formed on an outer portion of the first conductive semiconductor layer and the active layer; And a second electrode layer formed on the second conductive semiconductor layer.
- the light emitting device package includes a first conductive semiconductor layer, an active layer, a second conductive semiconductor layer on the substrate; A first insulating layer surrounding an outer portion of the second conductive semiconductor layer and the active layer; And a first electrode layer formed on an outer portion of the first conductive semiconductor layer.
- the embodiment can increase the current spreading (Current Spreading) effect through the chip separation structure in the case of a large area can be released through a large area.
- the embodiment may improve the current spreading and thermal characteristics of the small-area separation structure of the large-area chip by contacting the package and the lower end of the chip through soldering to improve heat dissipation.
- 1 and 2 are a cross-sectional view and a plan view of a light emitting device according to the first embodiment.
- FIG. 3 is a package cross-sectional view of a light emitting device according to the first embodiment
- 4 to 7 are sectional views of the manufacturing process of the light emitting device according to the first embodiment.
- FIG. 10 is a package cross-sectional view of a light emitting device according to the second embodiment
- 11 to 13 are cross-sectional views of a manufacturing process of the light emitting device according to the second embodiment.
- 16 is a package cross-sectional view of a light emitting device according to the third embodiment.
- 17 to 20 are sectional views of the manufacturing process of the light emitting device according to the third embodiment.
- 21 and 22 are cross-sectional views and plan views of a light emitting device according to a fourth embodiment
- FIG. 23 is a packaged cross-sectional view of a light emitting device according to the fourth embodiment.
- 24 to 27 are sectional views showing the manufacturing process of the light emitting device according to the fourth embodiment.
- each layer (film), region, pattern or structure may be “on / over” of the substrate, each layer (film), region, pad or patterns or “.
- “on” and “under” are “directly” or “indirectly through another layer.” “Includes all that are formed.
- the criteria for the top or bottom of each layer will be described with reference to the drawings.
- each layer is exaggerated, omitted, or schematically illustrated for convenience and clarity of description.
- the size of each component does not necessarily reflect the actual size.
- 1 and 2 are a cross-sectional view and a plan view of a light emitting device according to the first embodiment.
- 1 is a vertical cross-sectional view taken along line II ′ of FIG. 2.
- the light emitting device includes a first conductive semiconductor layer 130, an active layer 140, and a second conductive semiconductor layer 150 formed on the substrate 110.
- the first insulating layer 171 may include a layer 150 and an outer portion of the active layer 140, and may include a first electrode layer 135 surrounding the outer portion of the first conductive semiconductor layer 130. .
- the first electrode layer 135 is formed on the first heat transfer layer 171, but is not limited thereto and may not be formed on the first insulating layer 171.
- the first electrode layer 135 is formed on the substrate 110 and the buffer layer 120 in addition to the first conductive semiconductor layer 130, but is not limited thereto. May be formed only on the first conductivity type semiconductor layer 130.
- the current spreading is improved and the thermal characteristics are increased by the effective contact area. Can be improved.
- the light emitting device provides a method of forming an N-type electrode among two electrodes, and partially etches the outer portions of the active layer 140 and the second conductive semiconductor layer 150 during etching.
- an N-type electrode may be formed as the first electrode layer 135 on the first conductive semiconductor layer 130, thereby making it possible to uniformly inject current into the epi. .
- the LED chip before etching is a square chip having a diameter of 500 ⁇ m ⁇ 500 ⁇ m when viewed from the top surface, the area of about 25 ⁇ m to 50 ⁇ m is removed from each side of the square, but It is not limited.
- the light emitting device in the horizontal type (Lateral Type) structure by forming one of the two electrodes on the outer surface of the exposed epi layer can increase the current spreading effect (Current Spreading) through the LED chip outer electrode. .
- the current spreading effect can be increased through the chip separation structure, heat can be emitted through a large area.
- the light emitting device has a structure in which an N-type electrode is formed by forming a first electrode layer 135 on the outer side as shown in FIGS. 1 and 2.
- the current flow is shown in a schematic diagram, and the current flows from the upper P-type electrode 155 to the N-type electrode, which is the first electrode layer 135 formed on the outer side, to provide more uniform current spreading. You can get it.
- the problem of localized light emission is solved, and thus, there is an advantage in reducing unnecessary heat consumption for voltage and injection current.
- the chip of the LED structure having the N-type electrode formed on the outer side may enable bottom and side contact with the package having excellent thermal conductivity through soldering.
- the first electrode layer 135 may include, but is not limited to, a reflective metal layer having a high reflectivity for reflecting the generated light to be extracted to the outside.
- FIG. 3 is a package cross-sectional view of the light emitting device according to the first embodiment, and shows a final cross-sectional structure packaged with respect to the LED chip structure shown in FIG. 1.
- thermal conductivity of the bottom substrate which is mainly used in the horizontal structure, is relatively low, so the effective release of generated heat to the outside is important.
- the embodiment may improve the current spreading and thermal characteristics of the small-area separation structure of the large-area chip by contacting the package and the lower end of the chip through soldering to improve heat dissipation.
- the P-type pad 250 formed at the top forms a pad electrically separated by an insulator 230 on the surface of the package, and when the wire-bonding 255 is performed, the metal package uses one electrode. And the upper P-type pad 250 forms another electrode.
- FIG. 1 a manufacturing process of the light emitting device and the light emitting device package according to the first embodiment will be described with reference to 4 to 7.
- FIG. 1 a manufacturing process of the light emitting device and the light emitting device package according to the first embodiment will be described with reference to 4 to 7.
- the substrate 110 is prepared as shown in FIG. 4.
- the substrate 110 may be a sapphire (Al 2 O 3 ) single crystal substrate, but is not limited thereto. Impurities on the surface may be removed by performing wet cleaning on the substrate 110. Thereafter, the buffer layer 120 may be formed on the substrate 110.
- a first conductivity type semiconductor layer 130 is formed on the buffer layer 120.
- the first conductivity type semiconductor layer 130 may be formed using a chemical vapor deposition method (CVD), molecular beam epitaxy (MBE), sputtering, or hydroxide vapor phase epitaxy (HVPE).
- the first conductivity-type semiconductor layer 130 is n such as trimethyl gallium gas (TMGa), ammonia gas (NH 3 ), nitrogen gas (N 2 ), hydrogen gas (H 2 ) and silicon (Si) in the chamber Silane gas (SiH 4 ) containing a type impurity may be injected and formed.
- an active layer 140 is formed on the first conductivity type semiconductor layer 130.
- the active layer 140 has energy determined by the energy band inherent in the active layer material because electrons injected through the first conductive semiconductor layer 130 and holes injected through the second conductive semiconductor layer 150 meet each other. It is a layer that emits light.
- the active layer 140 has a single and multi quantum well structure and a quantum wire formed by alternately stacking nitride semiconductor thin film layers having different energy bands once or several times. Structure, and may have a quantum dot structure.
- the active layer 140 is injected with trimethyl gallium gas (TMGa), ammonia gas (NH 3 ), nitrogen gas (N 2 ), and trimethyl indium gas (TMIn) is a multi-quantum well having an InGaN / GaN structure
- TMGa trimethyl gallium gas
- NH 3 ammonia gas
- N 2 nitrogen gas
- TMIn trimethyl indium gas
- a structure may be formed but is not limited thereto.
- the second conductive semiconductor layer 150 may include trimethyl gallium gas (TMGa), ammonia gas (NH 3 ), nitrogen gas (N 2 ), hydrogen gas (H 2 ), and magnesium (Mg) in a chamber.
- TMGa trimethyl gallium gas
- NH 3 ammonia gas
- N 2 nitrogen gas
- H 2 hydrogen gas
- Mg magnesium
- EtCp 2 Mg Bicetyl cyclopentadienyl magnesium
- EtCp 2 Mg ⁇ Mg (C 2 H 5 C 5 H 4 ) 2 ⁇ including the same p-type impurity may be formed, but is not limited thereto.
- the ohmic layer 160 may be formed on the second conductive semiconductor layer 150.
- the ohmic layer may be formed of indium-tin-oxide (ITO), IZO (In-ZnO), GZO (Ga-ZnO), AZO (Al-ZnO), AGZO (Al-Ga ZnO), IGZO (In- Ga ZnO), IrOx, RuOx, RuOx / ITO, Ni / IrOx / Au, and Ni / IrOx / Au / ITO, and may be formed, but are not limited to these materials.
- the embodiment can increase the efficiency of light extraction while forming an ohmic layer while increasing the electrical conductivity.
- the spreading of the current through the ohmic layer 160 plays a major role in the even top emission distribution of the chip.
- outer portions of the ohmic layer 160, the second conductive semiconductor layer 150, and the active layer 140 are removed to expose the first conductive semiconductor layer 130.
- a first pattern (not shown) is formed, and the ohmic layer 160, the second conductive semiconductor layer 150, the active layer 140, and the first conductive semiconductor layer 130 are formed as an etching mask.
- An outer portion may be removed to expose the first conductivity type semiconductor layer 130.
- the first pattern may be silicon nitride, silicon oxide, or a photoresist film. Thereafter, the first pattern may be removed by a wet etching or ashing process.
- the LED chip before etching is a square chip having a diameter of 500 ⁇ m ⁇ 500 ⁇ m when viewed from an upper surface
- the area of about 25 ⁇ m to 50 ⁇ m may be removed from the sides of the square. It is not limited.
- the first insulating layer 171 surrounding the outer portion of the ohmic layer 160, the second conductive semiconductor layer 150, and the active layer 140 is formed.
- the first insulating layer 171 which is a passivation layer, may be formed on an epitaxial surface that is exposed to suppress leakage current due to a surface instability state by using an oxide film, a nitride film, or the like.
- the first insulating layer 171 serves to electrically isolate the first electrode layer 135, the active layer 140, and the second conductive semiconductor layer 150 formed thereafter.
- the first electrode layer 135 surrounding the portion is formed.
- the first electrode layer 135 is also formed on the first heat transfer layer 171, but is not limited thereto and may not be formed on the first insulating layer 171.
- the first electrode layer 135 is formed on the substrate 110 and the buffer layer 120 in addition to the first conductive semiconductor layer 130, but is not limited thereto. May be formed only on the first conductivity type semiconductor layer 130.
- the current spreading is improved and the thermal characteristics are increased by the effective contact area. Can be improved.
- the light emitting device and the light emitting device package according to the embodiment in the horizontal type (Lateral Type) structure by forming one of the two electrodes on the outer surface of the exposed epi layer by spreading (spreading) through the LED chip edge electrode The effect can be increased.
- the second electrode 155 may be formed on the ohmic layer 160.
- the light emitting device and the light emitting device package according to the embodiment in the horizontal type (Lateral Type) structure by forming one of the two electrodes on the outer surface of the epi layer to increase the current spreading (Current Spreading) effect through the LED chip outer electrode You can.
- FIG. 8 and 9 are cross-sectional views and plan views of the light emitting device according to the second embodiment
- FIG. 10 is a packaged cross-sectional view of the light emitting device according to the second embodiment.
- FIG. 8 is a cross-sectional view taken along line II-II ′ of FIG. 9.
- the second embodiment can employ the technical features of the first embodiment.
- the points of distinction from the first embodiment will be mainly described.
- the second embodiment includes a second insulating layer 172 separating the second conductive semiconductor layer 150, the active layer 140, and the first conductive semiconductor layer 130 into a plurality of regions.
- the epi layer is etched and separated into four quadrangles, and the uniformity is improved by distributing the current flow into four divided regions for a larger area chip for larger size. Local heat generation can also be suppressed.
- the four divisions are not limited and may be divided into a plurality of regions such as two divisions and three divisions.
- the first conductive semiconductor layer 130, the active layer 140, and the second conductive semiconductor layer 150 are formed on the substrate 110.
- the buffer layer 120 may be further formed on the substrate 110
- the ohmic layer 160 may be further formed on the second conductive semiconductor layer 150.
- outer portions of the ohmic layer 160, the second conductivity type semiconductor layer 150, and the active layer 140 are removed to expose the first conductivity type semiconductor layer 130.
- the ohmic layer 160, the second conductivity type semiconductor layer 150, the active layer 140, the first conductivity type semiconductor layer 130, and the buffer layer 120 are provided in a plurality of regions.
- a second trench T2 is formed to be separated.
- the insulating layer 171 is formed.
- a second insulating layer 172 filling the second trench T2 is formed.
- an insulating layer surrounding the first trench T1, the ohmic layer 160, the second conductive semiconductor layer 150, the active layer 140, and the exposed first conductive semiconductor layer 130 is provided.
- the first insulating layer 171 and the second insulating layer 172 may be simultaneously formed by removing the insulating layer on the upper side of the ohmic layer 160.
- the epi layer is etched and separated into square quadrants, and the current flow is divided into four divided regions for a larger area chip for larger size, thereby improving uniformity and suppressing local heat generation. You can.
- the four divisions are not limited and may be divided into a plurality of regions such as two divisions and three divisions.
- the first electrode layer 135 may be formed only on the first conductivity type semiconductor layer 130.
- the common second electrode 155a may be formed on the plurality of separated second conductive semiconductor layers 150 or the ohmic layer 160.
- the common second electrode 155a may be formed to be in contact with both of the plurality of second conductive semiconductor layers 150 or the ohmic layer 160.
- the first electrode layer 135 and the common second electrode 155a may be simultaneously formed of the same material.
- the metal layer above the common second electrode 155a is left and the metal layer is removed to expose the first insulating layer 171.
- the common second electrode 155a may be formed at the same time.
- FIG. 14 and 15 are cross-sectional views and plan views of the light emitting device according to the third embodiment
- FIG. 16 is a packaged cross-sectional view of the light emitting device according to the third embodiment
- 14 is a vertical cross-sectional view taken along line III-III 'of FIG. 15.
- the third embodiment may employ the technical features of the first embodiment, and will be mainly described below in terms of being different from the first embodiment.
- the light emitting device and the light emitting device package according to the third embodiment include a first conductive semiconductor layer 130, an active layer 140, and a second conductive semiconductor layer 150 sequentially formed on the substrate 110. And a first electrode 133 formed on the center portion of the first conductivity type semiconductor layer 130 exposed by partially removing the center portion of the second conductivity type semiconductor layer 150 and the active layer 140. 110, a third insulating layer 173 surrounding the outer portions of the first conductive semiconductor layer 130, the active layer 140, and the second conductive semiconductor layer 150, and the second conductive semiconductor layer ( The second electrode layer 157 may be included around the upper side of the 150.
- the third embodiment has a structure in which the second electrode layer 157 to be used as a P-type electrode is formed on the outer side, and the first layer is etched by etching the center of the ohmic layer 160, the second conductive semiconductor layer 150, and the active layer 140.
- the N-type electrode 133 is formed in the center of the conductive semiconductor layer 130. In FIG. 16, the N-type electrode 133 is wire bonded with the N-type pad 235.
- a buffer layer 120, a first conductivity type semiconductor layer 130, an active layer 140, a second conductivity type semiconductor layer 150, and an ohmic layer 160 are formed on the substrate 110 as shown in FIG. 17. .
- the third insulating layer 173 surrounding the portion is formed.
- the passivation layer which is the third insulating layer 173, may be formed of an oxide film, a nitride film, or the like to serve as electrical isolation from the second electrode layer 157 formed thereafter.
- a second electrode layer 157 is formed around the upper side of the second conductivity-type semiconductor layer 150.
- the second electrode layer 157 may be formed to surround the third insulating layer 173.
- the second electrode layer 157 may be formed of a metal capable of reflecting light like the first electrode layer 135, but is not limited thereto.
- a first electrode 133 may be formed on the exposed first conductive semiconductor layer 130.
- the first trench T1 is filled with a metal layer, and then the first pattern 310 is removed by ashing or etching, and thus, a first conductive layer.
- the first electrode 133 may be formed on the type semiconductor layer 130.
- FIG. 21 and 22 are cross-sectional views and plan views of the light emitting device according to the fourth embodiment
- FIG. 23 is a packaged cross-sectional view of the light emitting device according to the fourth embodiment.
- FIG. 21 is a vertical cross-sectional view taken along line IV-IV 'of FIG. 22.
- the fourth embodiment can employ the technical features of the first to third embodiments. Hereinafter, a description will be given focusing on differences from the above embodiments.
- the fourth embodiment is formed by etching and separating an epitaxial layer into quadrants.
- current flow is divided into four divided regions for a larger area of chip for larger size, thereby improving uniformity. Local heat generation can also be suppressed.
- the four divisions are not limited and may be divided into a plurality of regions such as two divisions and three divisions.
- the buffer layer 120, the first conductive semiconductor layer 130, the active layer 140, the second conductive semiconductor layer 150, and the ohmic layer 160 are sequentially formed on the substrate 110. .
- the ohmic layer 160, the second conductivity type semiconductor layer 150, the active layer 140, the first conductivity type semiconductor layer 130, and the buffer layer 120 using the second pattern 320 as a mask.
- the second pattern 320 may be a photosensitive film or a dielectric.
- the second pattern 320 is removed and the third pattern 330 is formed as a mask to form the ohmic layer 160, the second conductive semiconductor layer 150, and the active layer ( A portion of the center portion 140 is removed to expose the first conductivity type semiconductor layer 130.
- a first trench T1 may be formed to partially remove a central portion of the ohmic layer 160, the second conductive semiconductor layer 150, and the active layer 140.
- the third pattern 330 is removed by ashing or etching, and a fourth insulating layer 174 filling the second trench T2 is formed to form the ohmic layer ( 160, a third insulating layer surrounding the outer portion of the second conductive semiconductor layer 150, the active layer 140, the first conductive semiconductor layer 130, the buffer layer 120, and the substrate 110.
- 173 can be formed.
- an insulating layer (not shown) is formed on the chip in which the third pattern 330 is removed and the insulating layers on the first trenches T1 and the ohmic layer 160 are removed, the fourth insulating layer is removed.
- the layer 174 and the third insulating layer 173 may be simultaneously formed, but are not limited thereto.
- a common first electrode 133a may be formed on the exposed first conductive semiconductor layer 130 and the fourth insulating layer 174.
- the common first electrode 133a may serve as a common electrode to contact all of the plurality of separated first conductive semiconductor layers 130.
- the second electrode layer 157 and the common first electrode 133a may be formed at the same time.
- a metal layer (not shown) surrounding the chip is formed, and a portion of the metal formed in the first trench T1 is removed to contact only the first conductive semiconductor layer 130.
- the metal layer may remain to form the common first electrode 133a, and a portion of the metal layer on the ohmic layer 160 may be removed to simultaneously form the second electrode layer 157.
- the epi layer is etched and separated into four quadrangles, and the current flow is divided into four divided regions for a larger area chip for larger size, thereby improving uniformity and suppressing local heat generation. You can.
- the four divisions are not limited and may be divided into a plurality of regions such as two divisions and three divisions.
- the light emitting device and the light emitting device package according to the embodiment in the horizontal type (Lateral Type) structure by forming one of the two electrodes on the outer surface of the exposed epi layer to effect the current spreading (Current Spreading) effect through the LED chip outer electrode You can increase it.
- the embodiment is a one-wire bonding packaging because the current through the electrode formed on the outside of the chip is much better spreading and can be attached without reducing the operating voltage and wire-bonding Can be provided.
- the embodiment may improve the current spreading and thermal characteristics of the small-area separation structure of the large-area chip by contacting the package and the lower end of the chip through soldering to improve heat dissipation.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Led Devices (AREA)
Abstract
Description
Claims (20)
- 기판 상에 제1 도전형 반도체층, 활성층, 제2 도전형 반도체층;상기 제2 도전형 반도체층 및 상기 활성층의 외곽부를 감싸는 제1 절연층; 및상기 제1 도전형 반도체층의 외곽부에 형성된 제1 전극층;을 포함하는 발광소자.
- 제1 항에 있어서,상기 제1 전극층은상기 제1 절연층, 상기 기판 중 적어도 하나의 일부분까지 연장되어 형성되는 발광소자.
- 제1 항에 있어서,상기 제1 전극층은상기 제1 도전형 반도체층 상에만 형성된 발광소자.
- 제1 항에 있어서,상기 제2 도전형 반도체층, 상기 활성층, 상기 제1 도전형 반도체층을 복수의 영역으로 분리하는 제2 절연층을 포함하는 발광소자.
- 제4 항에 있어서,상기 제1 절연층과 상기 제2 절연층은 같은 물질인 발광소자.
- 제4 항에 있어서,상기 복수의 분리된 제2 도전형 반도체층 상에 공통 제2 전극을 포함하는 발광소자.
- 제6 항에 있어서,상기 공통 제2 전극과 상기 제1 전극층은 같은 물질인 발광소자.
- 제6 항에 있어서,상기 공통 제2 전극은 상기 복수로 분리된 제2 도전형 반도체층과 모두 접하는 발광소자.
- 제1 항에 있어서,상기 제1 전극층은반사금속층을 포함하는 발광소자.
- 제1 항에 있어서,상기 제2 도전형 반도체층 상에 오믹층을 포함하는 발광소자.
- 제1 도전형 반도체층, 활성층, 제2 도전형 반도체층을 포함하는 발광구조물;상기 제2 도전형 반도체층과 상기 활성층의 일부가 제거되어 노출된 상기 제1 도전형 반도체층 상에 제1 전극;상기 제1 도전형 반도체층, 상기 활성층의 외곽부에 형성된 제3 절연층; 및상기 제2 도전형 반도체층의 상에 형성된 제2 전극층;을 포함하는 발광소자.
- 제11 항에 있어서,상기 제2 전극층은상기 제3 절연층의 일부를 감싸는 발광소자.
- 제11 항에 있어서,상기 제2 도전형 반도체층, 상기 활성층, 상기 제1 도전형 반도체층을 복수의 영역으로 분리하는 제4 절연층을 포함하는 발광소자.
- 제13 항에 있어서,상기 제1 전극은 상기 복수로 분리된 제1 도전형 반도체층 상에 공통 제1 전극으로 형성되는 발광소자.
- 제11 항에 있어서,상기 제2 전극층은 반사전극층, 투명전극층 중 적어도 하나를 포함하는 발광소자.
- 기판 상에 제1 도전형 반도체층, 활성층, 제2 도전형 반도체층;상기 제2 도전형 반도체층 및 상기 활성층의 외곽부를 감싸는 제1 절연층; 및상기 제1 도전형 반도체층의 외곽부에 형성된 제1 전극층;을 포함하는 발광소자 패키지.
- 제16 항에 있어서,상기 제1 전극층은상기 제1 절연층, 상기 기판 중 적어도 하나의 일부분까지 연장되어 형성되는 발광소자 패키지.
- 제1 도전형 반도체층, 활성층, 제2 도전형 반도체층을 포함하는 발광구조물;상기 제2 도전형 반도체층과 상기 활성층의 일부가 제거되어 노출된 상기 제1 도전형 반도체층 상에 제1 전극;상기 제1 도전형 반도체층, 상기 활성층의 외곽부에 형성된 제3 절연층; 및상기 제2 도전형 반도체층의 상에 형성된 제2 전극층;을 포함하는 발광소자 패키지.
- 제18 항에 있어서,상기 제2 전극층은상기 제3 절연층의 일부를 감싸는 발광소자.
- 제18 항에 있어서,상기 제2 도전형 반도체층, 상기 활성층, 상기 제1 도전형 반도체층을 복수의 영역으로 분리하는 제4 절연층을 포함하는 발광소자.
Priority Applications (3)
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CN200980141602.6A CN102187483B (zh) | 2009-02-19 | 2009-06-05 | Led和led封装 |
US12/990,170 US8680560B2 (en) | 2009-02-19 | 2009-06-05 | LED and LED package |
EP09840461.9A EP2400565B1 (en) | 2009-02-19 | 2009-06-05 | Led and led package |
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KR10-2009-0013754 | 2009-02-19 | ||
KR1020090013754A KR101007128B1 (ko) | 2009-02-19 | 2009-02-19 | 발광소자 및 그 제조방법 |
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PCT/KR2009/003039 WO2010095785A1 (ko) | 2009-02-19 | 2009-06-05 | 발광소자 및 발광소자 패키지 |
Country Status (5)
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US (1) | US8680560B2 (ko) |
EP (1) | EP2400565B1 (ko) |
KR (1) | KR101007128B1 (ko) |
CN (1) | CN102187483B (ko) |
WO (1) | WO2010095785A1 (ko) |
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TWI403003B (zh) * | 2009-10-02 | 2013-07-21 | Chi Mei Lighting Tech Corp | 發光二極體及其製造方法 |
US9847372B2 (en) * | 2011-12-01 | 2017-12-19 | Micron Technology, Inc. | Solid state transducer devices with separately controlled regions, and associated systems and methods |
US10115862B2 (en) * | 2011-12-27 | 2018-10-30 | eLux Inc. | Fluidic assembly top-contact LED disk |
CN102646769B (zh) * | 2012-03-30 | 2015-08-05 | 达亮电子(苏州)有限公司 | 发光二极管组件、发光二极管封装结构及其制造方法 |
FR3008547B1 (fr) * | 2013-07-15 | 2016-12-09 | Commissariat Energie Atomique | Structure emissive a injection laterale de porteurs |
CN103606617B (zh) * | 2013-11-08 | 2016-06-29 | 溧阳市江大技术转移中心有限公司 | 具有透明电极的倒装发光二极管 |
KR102119851B1 (ko) * | 2014-01-28 | 2020-06-05 | 엘지이노텍 주식회사 | 발광소자 |
JP6606946B2 (ja) * | 2015-09-21 | 2019-11-20 | 豊田合成株式会社 | 発光素子 |
US20180309025A1 (en) * | 2015-10-29 | 2018-10-25 | Kyocera Corporation | Light-emitting device, light receiving and emitting device module, and optical sensor |
US10756069B2 (en) * | 2016-12-12 | 2020-08-25 | Goertek Inc. | Display device manufacturing method, display device and electronics apparatus |
US11749790B2 (en) * | 2017-12-20 | 2023-09-05 | Lumileds Llc | Segmented LED with embedded transistors |
KR102608987B1 (ko) | 2018-09-07 | 2023-12-05 | 삼성디스플레이 주식회사 | 발광 소자, 그의 제조 방법, 및 발광 소자를 구비한 표시 장치 |
CN113555480B (zh) * | 2021-08-18 | 2022-10-18 | 江西乾照光电有限公司 | 一种具有侧壁异形电极结构的led芯片 |
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- 2009-02-19 KR KR1020090013754A patent/KR101007128B1/ko active IP Right Grant
- 2009-06-05 EP EP09840461.9A patent/EP2400565B1/en active Active
- 2009-06-05 CN CN200980141602.6A patent/CN102187483B/zh not_active Expired - Fee Related
- 2009-06-05 WO PCT/KR2009/003039 patent/WO2010095785A1/ko active Application Filing
- 2009-06-05 US US12/990,170 patent/US8680560B2/en active Active
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Also Published As
Publication number | Publication date |
---|---|
EP2400565A4 (en) | 2015-06-03 |
CN102187483B (zh) | 2015-04-01 |
KR20100094671A (ko) | 2010-08-27 |
US20110133221A1 (en) | 2011-06-09 |
EP2400565A1 (en) | 2011-12-28 |
EP2400565B1 (en) | 2017-09-20 |
CN102187483A (zh) | 2011-09-14 |
US8680560B2 (en) | 2014-03-25 |
KR101007128B1 (ko) | 2011-01-10 |
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