WO2015189347A1 - Optoelektronisches halbleiterbauelement, verfahren zur herstellung eines optoelektronischen halbleiterbauelements sowie lichtquelle mit einem optoelektronischen halbleiterbauelement - Google Patents
Optoelektronisches halbleiterbauelement, verfahren zur herstellung eines optoelektronischen halbleiterbauelements sowie lichtquelle mit einem optoelektronischen halbleiterbauelement Download PDFInfo
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- WO2015189347A1 WO2015189347A1 PCT/EP2015/063093 EP2015063093W WO2015189347A1 WO 2015189347 A1 WO2015189347 A1 WO 2015189347A1 EP 2015063093 W EP2015063093 W EP 2015063093W WO 2015189347 A1 WO2015189347 A1 WO 2015189347A1
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- Prior art keywords
- conversion element
- emitting diode
- optoelectronic semiconductor
- light
- layer
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/852—Encapsulations
- H10H20/853—Encapsulations characterised by their shape
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/8506—Containers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/851—Wavelength conversion means
- H10H20/8511—Wavelength conversion means characterised by their material, e.g. binder
- H10H20/8512—Wavelength conversion materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/851—Wavelength conversion means
- H10H20/8515—Wavelength conversion means not being in contact with the bodies
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/855—Optical field-shaping means, e.g. lenses
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/84—Coatings, e.g. passivation layers or antireflective coatings
Definitions
- Optoelectronic semiconductor component and a method for producing such an optoelectronic
- An object to be solved is to provide an optoelectronic semiconductor component with a sensitive one
- Specify converter material and a light source with such an optoelectronic semiconductor device each having an increased life. Another object to be achieved is to specify a method for producing an optoelectronic semiconductor component with a sensitive converter material.
- the optoelectronic semiconductor component is, for example, a light-emitting semiconductor diode which is provided for the emission of electromagnetic radiation.
- the optoelectronic semiconductor component may also be a
- this comprises a light-emitting diode component.
- the light-emitting diode component may, for example, at an inorganic light emitting diode component act.
- the light-emitting diode component comprises at least one light-emitting diode chip and a cover surface which surrounds the light-emitting diode chip in one
- the light-emitting diode chip may be an inorganic light-emitting diode chip.
- a semiconductor body of the LED chip may be formed with inorganic compounds or within the manufacturing tolerances of inorganic
- the light-emitting diode component has a main extension plane in which it extends in lateral directions.
- the LED component has a thickness.
- the thickness of the light-emitting diode component is small compared to the maximum extent of the light-emitting diode component in a lateral direction.
- this comprises a conversion element which is arranged downstream of the light-emitting diode component in the emission direction.
- the conversion element comprises in particular a
- a sensitive wavelength-converting converter material stands out
- the converter material can be destroyed and / or damaged by contact with, for example, oxygen and / or water by, for example, oxidation.
- the sensitive converter material can be destroyed and / or damaged by contact with, for example, oxygen and / or water by, for example, oxidation.
- the sensitive converter material may be in the present case wavelength-converting quantum dots and / or a
- LED chip emitted electromagnetic radiation is converted to the converter material.
- the wavelength is increased here.
- Conversion element at least partially or completely converted into a red and / or green radiation.
- the conversion element does not comprise an active zone for generating radiation by converting electrical energy into photons.
- the conversion element is a passive element that only the one of the
- this comprises a cover body which is formed from a radiation-transmissive material.
- radiation-transmissive may mean that the material of the cover body is emitted and / or detected by the light-emitting diode component and / or by the converter material converted electromagnetic radiation one
- the cover body may be formed, for example, with a glass. Sometimes it can be at the cover body to a
- a glass plate is an integrally formed body which is formed with glass.
- the glass plate has a
- the cover body is the
- Light emitting diode component emitted electromagnetic radiation can thus pass through the cover body and in a surrounding the semiconductor device material, such as ambient air, are coupled out.
- this comprises a frame body.
- the frame body includes, for example, a metallic material.
- the frame body may be formed in particular reflective. "Reflective" may here and below mean that the light emitted by the LED component and / or detected and / or the of the converter material
- Frame body is reflected.
- Reflective and / or “radiation-reflecting” here and below mean that the frame body is emitted and / or detected by the light-emitting diode component and / or the converted from the converter material
- the electromagnetic radiation has a reflection coefficient of at least 90%, preferably at least 95%.
- the frame body has a high
- Converter material for example, be derived via the frame body, whereby the conversion element can be protected from heating.
- the frame body encloses all
- frame-like does not mean that the conversion element facing outer surfaces and / or the conversion element facing inner surfaces of the frame body and / or the
- Conversion element in a plan view must have a rectangular shape. Rather, the outer surface and / or the inner surfaces of the frame body and / or the
- Conversion element in a plan view have a polygonal, triangular, oval or round shape.
- the frame body completely surrounds all side surfaces of the conversion element.
- a gap which may be filled with a gas, is located between the frame body and the conversion element.
- At least one cover surface of the frame body is formed contiguously in a top view.
- the covering body covers the body
- the cover body may further the
- Cover light emitting diode component facing away from cover surface.
- the cover body preferably completely covers the conversion element and the frame body.
- Semiconductor component is thus no exposed surface of the conversion element and / or the frame body to recognize.
- the optoelectronic semiconductor component comprises a light-emitting diode component having at least one light-emitting diode chip and a cover surface which surrounds the light-emitting diode chip in a radiation direction
- Light emitting diode component is arranged downstream in the emission direction, a frame body and a cover body, which is formed of a radiation-transparent material.
- Frame body encloses all side surfaces of the
- the cover body is the
- Conversion element downstream in the emission direction covers the conversion element at its the
- Light emitting diode component facing away from the top surface.
- this further comprises a
- the barrier layer is between the
- the barrier layer can in particular with the
- Light emitting diode component and / or the conversion element are in direct contact.
- Adjacent conversion element Furthermore, it is possible that the barrier layer directly to the side surfaces of the
- the barrier layer completely covers all the outer surface of the light-emitting diode component facing the conversion element.
- the outer surfaces of the light-emitting diode component facing the conversion element are in this case the outer surfaces which, in the event that no layer would be arranged between the conversion element and the light-emitting diode component - ie the conversion element with the
- Light emitting diode component would be in direct contact - would have a direct contact with the conversion element.
- the conversion element For example, it is also possible that the
- the barrier layer may also be lateral
- the barrier layer seals that
- the barrier layer may at least partially cover all inner surfaces of the optoelectronic semiconductor component.
- the barrier layer covers 90%, preferably 95%, of the inner surfaces of the optoelectronic
- Optoelectronic semiconductor component are in this case by the conversion element facing the outer surfaces of the
- the conversion element comprises
- Wavelength-converting quantum dots as a sensitive wavelength-converting converter material.
- the conversion element is formed with a matrix material, wherein the wavelength-converting quantum dots are introduced into the matrix material.
- the conversion element may thus be a potting body containing the quantum dots.
- the potting body is preferably formed of a material which, for example by means of
- the matrix material may be formed with silicone, acrylate, epoxy resin, polycarbonate or a sol-gel material.
- quantum dots as a converter material sometimes good color reproduction is achieved because the converted electromagnetic radiation relative
- Spectrum of the converted radiation has a wavelength width of at least 20 nm to at most 35 nm. This allows the generation of light whose color can be very accurately assigned to a spectral range. In this way, when using the optoelectronic semiconductor component in a display, a large color gamut can be achieved, since
- a narrowband green and a narrowband red converting converter instead of a broadband yellow converting converter can be used and thus a larger color coverage is made possible.
- the quantum dots are preferably around
- Nanoparticles that is particles with a size in the
- the quantum dots include one
- the semiconductor core can be formed, for example, with CdSe, CdS, InAs and / or InP.
- the semiconductor core can be sheathed by several layers. In other words, the semiconductor core may be completely or almost completely covered by further layers on its outer surfaces.
- a first encapsulating layer of a quantum dot is, for example, an inorganic material such as
- the first overcladding layer and the semiconductor core are exposed by at least one second cladding layer at the exposed ones
- the layer may be formed with an organic material such as cystamine or cysteine, and sometimes serves to improve the solubility of the material
- Quantum dots in, for example, a matrix material and / or a solvent are distributed in, for example, a matrix material and / or a solvent.
- the second covering layer due to the second covering layer a spatially uniform distribution of the quantum dots in a matrix material
- the destruction of the second cladding layer may be accomplished by hermetically sealing the quantum dots of the
- This hermetic seal takes place here via the seal by means of the frame body, the cover body and / or the
- quantum dots As
- the wavelength conversion element may include an organic converter material.
- the organic converter material is organic dyes. As organic dyes are examples of organic converter material.
- suitable dyes based on one or more of the following substances or these
- acridine dyes contain or consist of: acridine dyes, acridinone dyes, Anthrachino dyes, anthracene dyes, cyanine dyes, dansyl, squaryllium dyes, spiropyrans, boron-dipyrromethane (BODIPY), perylenes, pyrenes, naphthalenes, flavins, pyrroles , Porphyrins and their metal complexes, diarylmethane dyes,
- Triarylmethane dyes nitro dyes, nitroso dyes, phthalocyanine dyes, metal complexes of phthalocyanines, quinones, azo dyes, indophenol Dyes, oxazines, oxazones, thiazines, thiazoles, fluorenes, flurones, pyronines, rhodamines, coumarins.
- organic dyes are, for example, from the German
- the optoelectronic semiconductor component the cover body and the
- Frame body mechanically interconnected.
- cover body and the frame body all cover the
- the light-emitting diode component comprises a shaped body.
- the shaped body can be in direct contact with the light-emitting diode component.
- the molding can
- the shaped body may be formed mechanically stabilizing.
- Handling of the light-emitting diode component is improved by the shaped body, whereby, for example, a higher external force can act on the optoelectronic semiconductor component without this being destroyed.
- a higher external force can act on the optoelectronic semiconductor component without this being destroyed.
- the light-emitting diode component For example, in the context of a manufacturing process with tools such as tweezers can be handled without another supporting element must be present.
- the use of the shaped body thus makes it possible to dispense with a further mechanically stabilizing carrier or another housing.
- the light-emitting diode component can be made particularly compact and / or planar.
- the light-emitting diode component further comprises connection points.
- the connection points may in particular be designed to be electrically conductive and to penetrate the shaped body at least in certain areas.
- the connection points can be electrically conductively connected to the LED chip.
- the connection points are free from outside at least on an outer surface of the light-emitting diode component
- the molded body covers all lateral side surfaces of the light-emitting diode component and the
- Connection points are freely accessible on a bottom surface of the light-emitting diode component facing away from the conversion element and can be contacted directly there.
- the light-emitting diode component is then a so-called top-looker.
- the shaped body it is possible for the shaped body to cover the side surfaces of the light-emitting diode component only in places and additionally for the top surface of the light-emitting diode component
- LED chips and the connection points at least
- connection points then takes place on one of the side surfaces of the light-emitting diode component.
- the light-emitting diode component is then a so-called side-looker. It is also possible that at least one further electronic component, such as a
- Molded body is introduced.
- Components of the light-emitting diode component that is to say the at least one light-emitting diode chip and the connection points, are then produced via the molded body.
- Light emitting diode component comprise at least a second LED chip.
- the conversion element is formed by the barrier layer and / or the connection points, the
- connection with the frame body cover body guarantees a long service life of the optoelectronic
- Seal is designed as well as possible. That is, the materials of the barrier layer and / or the
- connection points, the frame body and the cover body are chosen so that they have the lowest possible
- the material of the barrier layer, the material of the frame body and / or the material of the cap body has a water vapor transmission rate (English: Water Vapor Transmission Rate (WVTR)), which not more than lxl0 ⁇ 3 g / m ⁇ / Day, preferably highest 3xl0- ⁇ g / m ⁇ / day.
- WVTR Water Vapor Transmission Rate
- Cover body is thus hermetically sealing components.
- the cover body is for this purpose formed with a glass.
- the barrier layer includes for
- hermetic sealing for example, a plurality of layers, wherein organic and inorganic layers can alternate in the emission direction.
- the materials are in particular very close to penetration and / or transmission of air and / or water vapor. This can be achieved with materials described herein and barrier layers described herein.
- the material of the shaped body has a higher water vapor transmission rate than the material of the barrier layer, the material of the frame body and / or the material of the cover body. In the areas of
- Shaped body can thus oxygen, air and / or
- the barrier layer is provided on the LED component.
- a further hermetically sealing layer may be present on the shaped body.
- the barrier layer comprises at least one first layer and at least one second layer in the emission direction. The first and the second layer can directly adjoin one another. The first and second layers are formed of different materials.
- the first layer includes a
- organic material and the second layer of an inorganic material or vice versa.
- the second layer of an inorganic material or vice versa.
- Barrier layer a plurality of layers, wherein organic and inorganic layers can alternate in the emission direction.
- AI2O3, S1O2, Zr C> 2 ⁇ ⁇ 2 'S13N4 and / or SiO x Ny as materials for the layers are suitable.
- the first layer may be formed with T1O2 and the second layer with Al2O3.
- the barrier layer preferably has a high
- the thermal expansion coefficient of the barrier layer deviates by at most 20%, preferably at most 10%, from the coefficient of thermal expansion of the material of the molded body.
- connection points cover all outer surfaces of the shaped body facing the conversion element within the scope of the manufacturing tolerances.
- Connection points are thus formed over a large area and over the conversion element facing the outer surfaces of the
- connection points cover 90%, preferably 95%, of the outer surface of the molded body facing the conversion element.
- This large-area design of the connection points can be present as an alternative or in addition to the barrier layer. It is possible in this case to hermetically seal the conversion element by means of this large-area design of the connection points.
- the frame body comprises a reactive heating layer and a first metal frame. The reactive
- Heating layer is formed with a reactive material.
- the reactive heating layer is formed of multiple layers, wherein the layers with at least two different
- Metals and / or semiconductor materials are formed.
- the layers contain palladium, aluminum, nickel, titanium and / or silicon.
- the layers contain palladium, aluminum, nickel, titanium and / or silicon.
- Combination of the above materials contain: Pd / Al, Ni / Al,
- the materials of the reactive heating layer are preferably chosen such that they react exothermically with one another when electrically ignited, thus resulting in a local melting of the reactive heating layer at the regions of the reacting materials.
- the reactive heating layer may be formed in a grid shape.
- Materials of the heating layer may be formed in the form of a grid.
- the reactive heating layer assumes the function of a connecting material. In particular, this is intended to circumvent the use of a non-hermetically sealing adhesive.
- the first metal frame is formed with a metal.
- the reactive heating layer and the metal of the first metal frame are by means of an exothermic chemical reaction of the reactive material
- the reactive heating layer additionally contains a solder layer which has been melted by means of an exothermic chemical reaction.
- the solder layer can be formed, for example, with one of the following material combinations: Au / Sn, Ni / Sn, Cu / Sn / Ag, Au / In.
- the optoelectronic semiconductor component can preferably be produced by means of this method. That is, all features disclosed for the method are also disclosed for the optoelectronic semiconductor device and
- a light-emitting diode component having at least one light-emitting diode chip and a cover surface, which is the one
- LED chip is arranged downstream in a radiation direction provided.
- a first metal frame is applied, which comprises a radiation-reflecting metal.
- a radiation-reflecting metal As an alternative to a metal, another radiation-reflecting and hermetically sealing material can also be used.
- a Radiation-reflecting metal may in particular be a reflective metal.
- the first metal frame is in a plan view of the emission direction
- the first metal frame may be provided with physical vapor deposition (PVD), chemical vapor deposition (CVD) or
- Atomic layer deposition can be applied to the top surface.
- a conversion element is attached to the first metal frame
- the application of the conversion element takes place for example by molding or compression molding.
- the first metal frame as a limiting shape for the potting material of
- Conversion element for example, by gluing a prefabricated conversion element done.
- the conversion element is first produced in a different process and then applied to the light-emitting diode component or to the cover body.
- the gluing can be done for example with a silicone and / or a resin.
- a radiation-permeable covering body is attached to one of the first
- the cover body is a glass plate and the application is carried out by placing the cover body.
- the cover body is then preferably bonded to the first metal frame by means of a composite material, such as a reactive heating layer.
- a composite material such as a reactive heating layer.
- the cover body it is possible for the cover body to be applied to the side of the light-emitting diode component having the metal frame by means of a deposition method.
- LED chip is arranged downstream in a radiation direction
- a barrier layer is applied to the top surface of the light-emitting diode component before the application of the conversion element.
- the application of the barrier layer can, for example, with Atomic layer deposition (ALD) and / or chemical
- CVD Gas phase deposition
- the barrier layer is composed of several layers.
- the barrier layer can thus be a multilayer stack.
- at least one of the layers of the barrier layer can be applied with an ALD method and at least one of the layers of the barrier layer with a CVD method.
- materials for the layers for example Al 2 O 3, SiO 2, ZrO 2, TiO 2, S 13 N 4 and / or SiO x N y can be used.
- the barrier layer comprises at least a first layer and at least one second layer, wherein the first layer and the second layer are formed from different materials and / or different chemical compositions.
- the first and the second layer are replaced by means of different ones
- the first layer is formed by a CVD method
- the second layer is formed by an ALD method or vice versa.
- the barrier layer includes a plurality of layers, wherein layers which have been produced by a CVD method, and
- Layers which were produced by an ALD process, can alternate.
- organic layers are produced by a CVD method and inorganic ones
- Layers with an ALD process or vice versa Preferably, layers bounded with different boundaries
- the barrier layer When applying the barrier layer, it is sometimes possible for the barrier layer to cover an upper side of the first metal frame facing away from the light-emitting diode component. By a removing process, such as grinding or polishing, the barrier layer may be removed from the top of the first metal frame to form a solderable one
- the cover body is first provided for the application of the cover body.
- a reactive heating layer which is formed with a reactive material, is subsequently applied to a bottom surface of the cover body facing the light-emitting diode component.
- the reactive heating layer further comprises a solder layer located on an outer surface of the reactive heating layer facing the first metal frame.
- Lot Mrs is applied to one of the reactive heating layer facing outer surface of the first metal frame. Furthermore, the reactive heating layer on the first
- the reactive heating layer exhibits in the context of
- the reactive heating layer covers all outer surfaces of the first side facing away from the light-emitting diode component
- the cover body is attached to the side of the light-emitting diode component having the first metal frame.
- the first metal frame and the reactive heating layer are preferably in direct contact with one another.
- the reactive heating layer is electrically ignited.
- a reaction barrier is bridged by supplying electrical energy into the reactive heating layer, wherein an exothermic chemical reaction in the reactive heating layer can locally lead to a melting of the solder layer.
- the reactive heating layer and the first metal frame merge into a frame body.
- the solder connection between the first metal frame and the cover body then creates a hermetically sealed cavity.
- This process step can be carried out under vacuum or in an inert gas atmosphere
- Optoelectronic semiconductor device is in a
- Reaction chamber in which there is a negative pressure or in which an inert gas is present introduced.
- the application of the cover body comprises the following method steps:
- a reactive heating layer which is formed with a reactive material, to a bottom surface of the cover body or to the first metal frame, wherein the reactive heating layer has the frame-like shape of the first metal frame within the manufacturing tolerances
- Heating layer leads and merge the reactive heating layer and the first metal frame to a frame body.
- the entire component does not have to be heated in an oven in order to melt the solder layer, whereby the other components of the optoelectronic component are not heated
- Semiconductor device are advantageously exposed only a small thermal load.
- the material of the cover body is applied to the conversion element and the first metal frame by means of a PVD, a CVD or an ALD method.
- the cover body can then be applied to the conversion element and the first metal frame by means of a PVD, a CVD or an ALD method.
- the cover body is thus initially not provided as a glass plate available, but only by the PVD, the CVD or the ALD method on a light emitting diode component facing away from the outer surface of the
- the optoelectronic semiconductor component then comprises no reactive heating layer.
- the cover body can be a thin-film encapsulation that is applied by means of a PVD, a CVD or an ALD method.
- the cover body may comprise at least one ALD layer produced by an ALD method.
- the means, at least this layer of the cover body is formed by means of an ALD method.
- ALD layers are known for example from US publications US
- Heating layer and the first metal frame applied to the bottom surface of the cover body For this purpose, a second metal frame is first applied to the bottom surface of the cover body.
- the application of the second metal frame can be carried out analogously to the application of the first metal frame.
- Reactive material is then applied either to the second metal frame or to the first metal frame
- Light emitting diode component to connect.
- a light source is also indicated.
- the light source comprises in particular a described here
- Optoelectronic semiconductor component which is preferably produced by a method described herein. That is, all for the process and for the
- Optoelectronic semiconductor device disclosed features are also disclosed for the light source and vice versa.
- this comprises a plurality of optoelectronic
- the light source comprises a Composite moldings.
- the molding composite includes the
- Shaped body monolithically connected to each other.
- Molded body composite is formed in one piece in this case.
- the optoelectronic semiconductor components are then laterally connected by means of the molding composite.
- a single cover body covers the plurality of optoelectronic semiconductor components. That is, not every one
- Optoelectronic semiconductor component has its own cover body, but a single, one-piece
- cover body covers all optoelectronic semiconductor devices.
- the covering bodies of the respective optoelectronic semiconductor components are monolithically connected to one another. Between adjacent conversion elements of the optoelectronic
- the frame body is thus in a plan view of the
- Radiation direction arranged in a grid around the conversion elements around, wherein the conversion elements are each arranged in the mesh of the grid.
- the light source is preferably produced by means of this method. That is, all features disclosed for the method are also disclosed for the light source and vice versa.
- the molded body is composite and the only cover body along a part of the frame body or within the manufacturing tolerances parallel to at least a part of the frame body
- Semiconductor devices in a plurality of light sources, each having a smaller number than the first number
- FIGS. 1, 2A, 2B, 3A and 3B show exemplary embodiments of a method described here and of an optoelectronic device described here Semiconductor device based on schematic
- FIGS. 4, 5 and 6 show exemplary embodiments of an optoelectronic device described here
- FIGS. 7 and 8 show exemplary embodiments of a light source described here with reference to FIG.
- Light-emitting diode component 1 provided with at least one LED chip 11 and a top surface la.
- the top surface la is the light-emitting diode component 1 in a radiation direction Z
- the light-emitting diode component 1 further comprises a shaped body 12 and connection points 13.
- the shaped body 12 encloses the light-emitting diode chip 11 at its lateral side surfaces IIb.
- the connection points 13 completely penetrate the molded body 12 and extend at least partially on a bottom surface 12 c and / or on a top surface 12 a of the
- connection points are attached to a laterally located side surface of the shaped body 12 and the molded body 12 a cover surface facing away from the bottom surface of the LED chip 11 and the connection points 13 completely covered.
- a conversion element 2 is arranged, which comprises wave-converting quantum dots 21. It is also possible, however, another
- Converter material such as a sulfide or a
- the conversion element 2 can have a cover surface 2 a facing away from the light-emitting diode component 1, a base surface 2 b facing the light-emitting diode component 1, and side surfaces 2 c.
- the conversion element 2 is arranged downstream of the light-emitting diode chip 1 in the emission direction Z.
- All the conversion element 2 facing outer surfaces of the shaped body 12 may in this case in the context of
- connection points 13 may be covered.
- the conversion element 2 is not in direct contact with the molded body 12. Only exposed outer surfaces of the LED chip 11 can with the
- Conversion element 2 are in direct contact.
- Connection points 13 the conversion element 2 facing outer surfaces 12 d of the shaped body 12 in the context of
- Conversion element 2 facing outer surfaces 12d of the Shaped body 12 comprise in the figure 2 parts of the top surface 12a of the shaped body 12. Furthermore, the connection points 13 cover the LED chip 11 at least partially in
- the conversion element 2 is already of a first one
- Metal frame 32 frame-shaped enclosed. The first
- Metal frame 32 limits the conversion element 2 laterally.
- the first metal frame 32 may, for example, with a
- the cover body 4 comprises a reactive heating layer 31 on its bottom surface 4c.
- the reactive heating layer 31 has the frame-like shape of the first metal frame 32 within the manufacturing tolerances. Thereby, by connecting the reactive heating layer 31 and the metal frame 32, a hermetic seal can be made.
- Cover body 4 including the reactive heating layer 31, is applied to the first metal frame 32 and fused to it by electric ignition.
- Embodiment cover the connection points 13, the conversion element 2 facing outer surfaces 12 d of the Shaped body 12 only partially. Thus, none occurs
- the component comprises a barrier layer 5, which is located between the
- Light emitting diode component 1 and the conversion element 2 is arranged.
- the barrier layer 5 covers all of this
- the barrier layer 5 covers all outer surfaces 12d of the molded body 12 facing the conversion element 2.
- the barrier layer 5 directly adjoins the conversion element 2.
- a contact point 14 of the LED chip is shown, which is not shown in the remaining figures.
- the contact point 14 serves to make contact with the light-emitting diode chip 11 by means of the connection points 13.
- the connection points 13 directly adjoin the contact point 14.
- the adhesive layer 22 is in direct contact with the LED chip 11 and the conversion element 2.
- the adhesive layer 22 may be formed, for example, with silicone and / or a resin.
- the barrier layer 5 additionally covers only the outer surfaces 12d of the shaped body 12 facing the conversion element 2. These include a Part of the top surface 12a of the shaped body 12. Die den
- LED chips 11 remains free at least in places of the barrier layer. 5
- FIG. 3A According to the schematic sectional view of FIG. 3A, a further exemplary embodiment of a method for producing an optoelectronic method described here is shown
- the conversion element 2 is applied to the bottom surface 4c of the cover body 4.
- the reactive heating layer 31 is applied to the first metal frame 32, which in turn on the top surface la of
- Light-emitting diode component 1 is applied.
- a second metal frame 33rd On the bottom surface 4c of the cover body 4 is a second metal frame 33rd
- the conversion element is applied to the first metal frame 32 and the reactive heating layer 31 together with the cover body 4.
- Heating layer 31 and the second metal frame 33 then form after joining the cover body with the rest
- Metal frame 32 is.
- the reactive heating layer 31 is then applied to the first metal frame 32 together with the cover body 4.
- a barrier layer 5 is also present.
- the barrier layer 5 completely covers the top surface 1 a of the light-emitting diode component 1 and serves for the hermetic sealing of the conversion element 2 to the molded body 12.
- a frame body 3 is formed.
- the frame body 3 encloses the
- Conversion element 2 like a frame.
- the frame body 3 surrounds all side surfaces 2c of the conversion element 2 like a frame.
- the cover body 4 covers all the
- the cover body 4 covers the conversion element 2 on its end surface 2a facing away from the light-emitting diode chip 11. Between the conversion element 2 and the cover body 4, a gap 6 is arranged.
- the intermediate space 6 may be, for example, an air-filled empty space. It is also possible that in the gap 6, an inert gas is introduced. Furthermore, in the intermediate space 6, a vacuum, so a
- the cover body 4 and / or the recesses 41 may be formed in the form of a lens. Furthermore, it is possible that the cover body 4 alternatively or additionally on its cover surface 4a have an anti-reflection layer, which also ensures an improved coupling of the light emitted from the LED chip 11 electromagnetic radiation.
- Semiconductor device 9 is a PVD method
- the shape of the frame body 3 can thus be transmitted to the covering body 4, so that a radiation exit surface 4a of the covering body 4 facing away from the bottom surface is in the
- Regions of the frame body 3 has a greater distance from the LED component 1.
- the cover body seals the conversion element 2 directly to the outside. That is, there is no gap 6 between the conversion element 2 and the Cover body 4 present, whereby a better stability of the matrix material of the conversion element 2 is ensured. In particular, it is thus impossible that any existing air particles in the space 6 to a
- Oxidation of the protective layer of the quantum dots 21 can lead.
- a light source comprises a plurality of optoelectronic semiconductor components 9.
- the light source comprises a molding composite 12, wherein the
- Molded body composite comprising the moldings 12 of the optoelectronic semiconductor components 9.
- Semiconductor devices 9 are here by means of
- a light source also comprises a single cover body 4 which simultaneously covers a large number of optoelectronic semiconductor components 9. Between adjacent conversion elements 2 of the optoelectronic semiconductor devices 9 is the
- Frame body 3 is arranged.
- the molded body composite 12 ⁇ and the single cover body 4 ⁇ can optionally be singulated along the dashed line in FIG.
- the separation can be done with a cutting tool and / or a laser.
- the shaped body composite 12 can be ⁇ and the single cover body 4 ⁇ along a within the manufacturing tolerances
- the frame body 3 has
- the composite body 12 ⁇ connects the optoelectronic semiconductor devices 9 with each other.
- Dashed line 91, the molding composite 12 ⁇ and the single cover body 4 ⁇ can be optionally isolated.
- a method described here or an optoelectronic semiconductor component 9 described here bring about the particular advantage that a compact and inexpensive manufacturable light-emitting diode component 1 with a shaped body 12 in conjunction with a conversion element 2 with quantum dots 21 can be used. This is sometimes due to the hermetic seal by means of
- Quantum dots and a hermetic seal allows a compact, robust and inexpensive to manufacture
Landscapes
- Led Device Packages (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112015002754.8T DE112015002754B4 (de) | 2014-06-12 | 2015-06-11 | Optoelektronisches Halbleiterbauelement, Verfahren zur Herstellung eines optoelektronischen Halbleiterbauelements sowie Lichtquelle mit einem optoelektronischen Halbleiterbauelement |
| JP2016572485A JP6420372B2 (ja) | 2014-06-12 | 2015-06-11 | オプトエレクトロニクス半導体装置、オプトエレクトロニクス半導体装置の製造方法、およびオプトエレクトロニクス半導体装置を備えた光源 |
| CN201580031308.5A CN106415862B (zh) | 2014-06-12 | 2015-06-11 | 光电子半导体器件、用于制造光电子半导体器件的方法以及具有光电子半导体器件的光源 |
| US15/317,959 US10505085B2 (en) | 2014-06-12 | 2015-06-11 | Optoelectronic semiconductor device package with conversion layer and method for producing the same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014108282.6A DE102014108282A1 (de) | 2014-06-12 | 2014-06-12 | Optoelektronisches Halbleiterbauelement, Verfahren zur Herstellung eines optoelektronischen Halbleiterbauelements sowie Lichtquelle mit einem optoelektronischen Halbleiterbauelement |
| DE102014108282.6 | 2014-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015189347A1 true WO2015189347A1 (de) | 2015-12-17 |
Family
ID=53404539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2015/063093 Ceased WO2015189347A1 (de) | 2014-06-12 | 2015-06-11 | Optoelektronisches halbleiterbauelement, verfahren zur herstellung eines optoelektronischen halbleiterbauelements sowie lichtquelle mit einem optoelektronischen halbleiterbauelement |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10505085B2 (de) |
| JP (1) | JP6420372B2 (de) |
| CN (1) | CN106415862B (de) |
| DE (2) | DE102014108282A1 (de) |
| WO (1) | WO2015189347A1 (de) |
Cited By (1)
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|---|---|---|---|---|
| WO2018023027A1 (en) * | 2016-07-28 | 2018-02-01 | Lumileds Llc | Light emitting device package with reflective side coating |
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| US10627672B2 (en) * | 2015-09-22 | 2020-04-21 | Samsung Electronics Co., Ltd. | LED package, backlight unit and illumination device including same, and liquid crystal display including backlight unit |
| US10193043B2 (en) | 2016-07-28 | 2019-01-29 | Lumileds Llc | Light emitting device package with reflective side coating |
| DE102017101729A1 (de) * | 2017-01-30 | 2018-08-02 | Osram Opto Semiconductors Gmbh | Strahlungsemittierende Vorrichtung |
| DE102018111637A1 (de) | 2018-01-26 | 2019-08-01 | Osram Opto Semiconductors Gmbh | Optoelektronischer halbleiterchip, verfahren zur herstellung eines optoelektronischen bauelements und optoelektronisches bauelement |
| DE102018105908A1 (de) | 2018-03-14 | 2019-09-19 | Osram Opto Semiconductors Gmbh | Optoelektronisches Bauteil und Verfahren zur Herstellung eines optoelektronischen Bauteils |
| DE102018111595A1 (de) | 2018-05-15 | 2019-11-21 | Osram Opto Semiconductors Gmbh | Optoelektronisches Halbleiterbauelement und Verfahren zur Herstellung eines optoelektronischen Halbleiterbauelements |
| WO2021166785A1 (ja) * | 2020-02-19 | 2021-08-26 | ソニーグループ株式会社 | 発光素子、発光素子アレイ及び表示装置 |
| DE102021123531A1 (de) * | 2021-09-10 | 2023-03-16 | OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung | Optoelektronische leuchtvorrichtung und verfahren zur herstellung |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106415862A (zh) | 2017-02-15 |
| DE102014108282A1 (de) | 2015-12-17 |
| CN106415862B (zh) | 2019-05-07 |
| US20170133561A1 (en) | 2017-05-11 |
| US10505085B2 (en) | 2019-12-10 |
| DE112015002754A5 (de) | 2017-04-06 |
| DE112015002754B4 (de) | 2021-12-09 |
| JP6420372B2 (ja) | 2018-11-07 |
| JP2017523602A (ja) | 2017-08-17 |
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