WO2015036231A1 - Optoelektronisches halbleiterbauteil und verfahren zur herstellung eines optoelektronischen halbleiterbauteils - Google Patents
Optoelektronisches halbleiterbauteil und verfahren zur herstellung eines optoelektronischen halbleiterbauteils Download PDFInfo
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- WO2015036231A1 WO2015036231A1 PCT/EP2014/068000 EP2014068000W WO2015036231A1 WO 2015036231 A1 WO2015036231 A1 WO 2015036231A1 EP 2014068000 W EP2014068000 W EP 2014068000W WO 2015036231 A1 WO2015036231 A1 WO 2015036231A1
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- optoelectronic semiconductor
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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
- H10H20/855—Optical field-shaping means, e.g. lenses
- H10H20/856—Reflecting means
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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
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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
- H10H20/854—Encapsulations characterised by their material, e.g. epoxy or silicone resins
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
- H10W70/60—Insulating or insulated package substrates; Interposers; Redistribution layers
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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]
- H10H20/01—Manufacture or treatment
- H10H20/036—Manufacture or treatment of packages
- H10H20/0362—Manufacture or treatment of packages of encapsulations
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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]
- H10H20/01—Manufacture or treatment
- H10H20/036—Manufacture or treatment of packages
- H10H20/0363—Manufacture or treatment of packages of optical field-shaping means
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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
- H10H20/851—Wavelength conversion means
- H10H20/8515—Wavelength conversion means not being in contact with the bodies
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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
- H10H20/857—Interconnections, e.g. lead-frames, bond wires or solder balls
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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
- H10H20/882—Scattering means
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/01—Manufacture or treatment
- H10W72/0198—Manufacture or treatment batch processes
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/90—Bond pads, in general
- H10W72/941—Dispositions of bond pads
- H10W72/9413—Dispositions of bond pads on encapsulations
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W74/00—Encapsulations, e.g. protective coatings
- H10W74/10—Encapsulations, e.g. protective coatings characterised by their shape or disposition
Definitions
- An object to be solved is to specify an optoelectronic semiconductor component which is particularly simple
- Semiconductor component is, for example, a light emitting diode that emits light during operation. This one
- SMD surface mountable device
- the optoelectronic component comprises
- the optoelectronic semiconductor chip is, for example, a light-emitting diode chip.
- Optoelectronic semiconductor chip comprises in particular a transparent carrier, a semiconductor layer sequence on the transparent carrier and electrical Connection points on the underside of the semiconductor layer sequence facing away from the transparent carrier.
- the translucent carrier of the optoelectronic semiconductor chip may in particular be a
- the translucent carrier can then be formed, for example, with glass, sapphire or SiC or consist of one of these materials.
- the semiconductor layer sequence is epitaxially grown on the transparent carrier and comprises at least one active region which belongs to the
- Semiconductor chip comprises electrical connection points on the underside of the semiconductor layer sequence facing away from the transparent carrier.
- the optoelectronic semiconductor chip it is possible for the optoelectronic semiconductor chip to be electrical only at the bottom
- Optoelectronic semiconductor chip is preferably free of a particular metallic reflector layer, for example, on the light-transmissive support
- the optoelectronic semiconductor chip comprises no particular metallic mirror, with the electromagnetic radiation in
- the optoelectronic semiconductor chip is therefore free of a particular metallic reflector and therefore particularly easy and inexpensive to produce. It is possible, however, that at the bottom of the
- Semiconductor layer sequence is arranged in regions a dielectric mirror.
- optoelectronic semiconductor chip generated light, if it is in the optoelectronic semiconductor chip
- Optoelectronic semiconductor chip is then a so-called volume emitter in contrast to a
- the electrical connection points of the optoelectronic semiconductor chip may be formed with a radiation-transmissive material such as, for example, a TCO (Transparent Conductive Oxide), ie a transparent oxide.
- a radiation-transmissive material such as, for example, a TCO (Transparent Conductive Oxide), ie a transparent oxide.
- the electrical connection points are formed with or from ITO, so that also to the electrical
- the optoelectronic component comprises
- the translucent wrapping material is For example, formed with a silicone, an epoxy resin or a silicone-Epoxidhybridmaterial.
- Translucent wrapping material surrounds the
- Optoelectronic semiconductor chip preferably such that only the bottom of the semiconductor layer sequence, which faces away from the optoelectronic semiconductor chip, as well as the electrical connection points at the bottom of the
- Covering material is not covered or enclosed. Except for these areas of the optoelectronic semiconductor chip, the optoelectronic semiconductor chip can then be completely surrounded by the transparent covering material, wherein the translucent covering material does not have to directly adjoin the optoelectronic semiconductor chip.
- Conversion layers may be arranged with one or more phosphors and / or passivation layers between the semiconductor chip and the translucent wrapping material.
- the translucent wrapping material may further be coated with particles such as particles of a
- the translucent wrapping material forms during
- the translucent wrapping material constitutes the mechanically supporting and supporting component of the optoelectronic semiconductor device
- Enveloping material and at least partially side surfaces which extend transversely to the light exit surface at the top of the translucent wrapping material may be freely accessible from the outside and are not by a
- the optoelectronic component comprises
- Semiconductor component Particles of a light-scattering and / or light-reflecting material.
- light diffusing and / or reflecting material forms a layer disposed on an outer surface of the translucent wrapping material.
- the particles are provided, impinging electromagnetic radiation or incident light of the
- the particles at least partially replace a reflector that lacks the optoelectronic semiconductor chip.
- the particles are preferably on the outer surface of the surface facing the underside of the semiconductor layer sequence
- the particles may, for example, be particles which are formed by T1O2, Al x O y , where x is, for example, 2 and y 3, ZnO, ZrO 2, BaSO 4, HfO 2 or consist of one of these materials.
- the particles may also comprise colored inorganic pigments such as oxides, sulfides, cyanides, hydroxides of transition metals or other inorganic pigments. In this way, a color impression of the finished optoelectronic semiconductor device can be achieved, which is not white but colored.
- Lumineszenzkonversionsmaterial such as YAG, LuAG, nitridic converters or the like are formed. In this way, the particles can also be radiation-converting.
- the underside of the optoelectronic semiconductor component the underside of the optoelectronic semiconductor component
- Covering material are covered.
- the particles of the light-scattering and / or light-reflecting material cover the underside of the Semiconductor layer sequence and an outer surface of the
- Sheathing material in places.
- the particles are applied there, for example, in a layer which
- the layer has a thickness of at least 500 nm and at most 5 pm.
- the particles are applied in high density, so that in the layer a weight fraction of
- the optoelectronic component comprises
- Translucent carrier opposite bottom of the
- Optoelectronic semiconductor device of this embodiment a translucent wrapping material
- Optoelectronic semiconductor chip encloses in places and particles of a light-scattering and / or light-reflecting material.
- the underside of the semiconductor layer sequence is free of light transmissive
- the cladding material and the particles cover the underside of the semiconductor layer sequence and an outer surface of the substrate
- optoelectronic semiconductor device can be produced. That is, all for the optoelectronic semiconductor device disclosed features are also disclosed for the method and vice versa.
- the described method is first the optoelectronic semiconductor chip with the transparent carrier, the
- Translucent carrier opposite bottom of the
- Optoelectronic semiconductor chip applied to a subcarrier.
- the subcarrier can be, for example, the part of a casting tool or a
- the auxiliary carrier is preferably rigid and can be designed as a flat plate. Furthermore, it is possible that the auxiliary carrier cavities
- Subcarrier comprises at its the optoelectronic
- Semiconductor chip-facing top further preferably a releasable connection means with which the optoelectronic semiconductor chip may be temporarily attached to a main body of the subcarrier.
- the releasable connection means may be, for example, a Revalpha film, silicone as a temporary adhesive or sucrose as a temporary adhesive.
- the translucent wrapping material is at its underside facing the subcarrier except for the locations of the releasable connecting means, the
- optoelectronic semiconductor chip are covered completely covered with the releasable connection means and can be in direct contact with this.
- the particles of the light-scattering and / or light-reflecting material are applied to the uncovered underside of the semiconductor layer sequence and of the cladding material.
- Particles preferably take place via a process with which the particles are packed in a particularly dense pack onto the
- Enveloping material can be applied.
- the particles can be applied via electrophoretic deposition (EPD).
- EPD electrophoretic deposition
- the method comprises the following steps, which can be carried out in particular in the order indicated:
- an optoelectronic semiconductor chip comprising a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent carrier, a transparent
- Translucent carrier opposite bottom of the
- a volume-emitting optoelectronic semiconductor chip for example an optoelectronic semiconductor chip with a sapphire growth substrate, is flipped surrounded by and embedded in the translucent wrapping material.
- the missing reflector of the optoelectronic semiconductor chip is at least partially through the particles of the
- the particles which may consist in particular of titanium dioxide or another of the abovementioned materials, are given a high content
- Reflectances can be achieved at relatively low layer thickness.
- an optoelectronic semiconductor component is produced with a mirror which is at least partially formed by the particles.
- Such a mirror is characterized not only by its high reflectivity but also by its very favorable
- Embodiments relate to here, respectively
- the particles are formed by a gap-passing material at the bottom of the particles
- the gap-passing material may in places be in direct contact with at least some of the particles and the wrapping material.
- the particles are formed by applying a gap-passing material to the underside of the
- the gap-passing material may be, for example, an organic substance such as parylene. Further, it may be at least one of the following materials: silicone, epoxy resin, inorganic matrix materials such as alumina or silica.
- the gap-entangled material can be applied by an application method such as atomic layer deposition or a sol-gel method.
- the gap-passing material it is possible for the gap-passing material to be a metallic layer, which then serves for contacting the optoelectronic semiconductor chip and for fixing the particles.
- a metallic layer can be applied, for example, by means of a gas-phase process, which is distinguished by a good fissuring property.
- a gap-passing material is used, which can penetrate into the spaces between adjacent particles and in places even to the bottom of the semiconductor layer sequence and / or the bottom of the
- the gap-passing material ensures that the particles adhere firmly to the remaining components of the optoelectronic semiconductor chip.
- the gap-passing material can itself as well
- the particles form a layer, wherein the gap-passing material is the layer of the particles
- the particles are arranged in one or more layers and thus form a layer which covers the underside of the
- the gap-passing material completely penetrates this layer at least in places from its side facing away from the underside of the semiconductor layer sequence and the outer surface of the cladding material to the underside of the semiconductor layer sequence and to the outer surface of the cladding material. That is, there are paths of fissile material which cross the layer or
- the layer may at its the bottom of the semiconductor layer sequence and the outer surface of the
- the particles adhere particularly well to the cladding material and the semiconductor layer sequence.
- Envelope material and the gap-like material are not the same materials, but from each other
- Material a material can be selected that the layer of the particles penetrates particularly well and which adheres particularly well to the particles.
- the optoelectronic semiconductor component is at the optoelectronic Semiconductor chip side facing away from the particles and / or the gap-passing material arranged an electrically conductive material, wherein the electrically conductive material in electrically conductive contact with the electrical
- connection points of the optoelectronic semiconductor chip is.
- the electrically conductive material is structured accordingly, so that at least two connection points are formed by the electrically conductive material on the underside of the optoelectronic semiconductor component, via which the optoelectronic semiconductor chip of the optoelectronic semiconductor component can be contacted from the outside.
- electrically conductive material can also serve to fix the particles on the undersides of semiconductor layer sequence and wrapping material.
- the electrically conductive material is, for example, a well-reflecting metal such as
- the electrically conductive material can be formed for example by a layer sequence of aluminum, NiV and gold, wherein the aluminum the
- the electrically conductive material can in particular also for heat dissipation during operation of the optoelectronic
- conductive material can be applied, for example, galvanically or by sputtering.
- the particles of the light-scattering and / or light-reflecting material are electrophoresed in an electrophoresis bath
- the particles can be deposited particularly dense.
- an electrically conductive auxiliary layer is applied to the exposed underside of the semiconductor layer sequence and the cladding material prior to the deposition of the particles, wherein the auxiliary layer is suitable for at least partially forming a salt with a protic reactant.
- the electrically conductive auxiliary layer becomes electrically conductive
- At least the electrically conductive auxiliary layer is introduced into the protic reactant in a next process step, so that the electrically conductive auxiliary layer at least partially forms a salt with the protic reactant.
- the salt can be at least partially washed out by the completion of the process, for example, before applying the gap-passing material for fixing the particles by means of a solvent.
- the electrically conductive auxiliary layer may be applied by a method such as sputtering or molecular beam epitaxy.
- the electrical connection points of the optoelectronic semiconductor chip may be covered by a photoresist or the layer is intentionally not connected to the electrical
- the electrically conductive auxiliary layer may have a thickness between at least 50 nm and at most 1 pm, in particular between at least 150 nm and at most 500 nm, for example of 200 nm.
- the electrically conductive auxiliary layer can with a
- electrically conductive material such as a doped
- Semiconductor material or a metal may be formed.
- the electrically conductive auxiliary layer may comprise one of the following materials or consist of one of the following materials: Si, Al, Ti, Ca, ZnO, GaN, wherein said materials may also be doped.
- photoresist may be removed prior to electrophoretic deposition with the overlying material using a lift-off technique.
- the electrical connection points can be exposed by etching.
- the electrical connection points of the optoelectronic semiconductor chip can be covered again with a photoresist. Subsequently, the fixation of the particles can be carried out by means of the gap-passing material.
- a method in which an electrically conductive auxiliary layer is used, which is then at least partially converted into a salt via the introduction into a protic reactant, is described in another context in the document PCT / EP2013 / 062618, whose
- the ESD protective layer may be formed for example by a varistor paste containing semiconducting particles such as SiC or ZnO particles, the at her
- Breakdown voltage of the ESD protective layer can be adjusted.
- an ESD protection diode can be dispensed with, which reduces the material costs and the manufacturing costs as well as absorption losses due to absorption of
- Electromagnetic radiation is reduced by an ESD protection zdiode.
- a varistor paste is described in another context, for example in the publication DE 102012207772, the disclosure of which is hereby expressly incorporated by reference.
- the optoelectronic semiconductor component may comprise an ESD protection element which is applied to the auxiliary carrier before being enveloped by the light-permeable wrapping material.
- the ESD protective element can be, for example, an ESD protection diode such as a Zener diode or a varistor.
- the ESD protection element can be parallel or
- the ESD protection element can be electrically connected to the optoelectronic semiconductor chip before wrapping with the translucent wrapping material.
- an interconnection between the optoelectronic semiconductor chip and the ESD protection element preferably takes place via the electrically conductive material.
- the ESD protective element can alternatively or additionally be used in conjunction with the ESD protection layer, wherein in the case of
- the light-permeable component In accordance with at least one embodiment of the optoelectronic semiconductor component, the light-permeable
- Separation traces may be, for example, traces of a sawing process or a cutting process.
- a multiplicity of optoelectronic semiconductor chips can be used simultaneously with the translucent one
- Envelope material to be wrapped.
- the production of individual optoelectronic semiconductor components can then be produced.
- each optoelectronic semiconductor device at least one optoelectronic
- the auxiliary carrier has at least one cavity and at least one cavity is at least one optoelectronic semiconductor chip
- the side surfaces of the cavity define the shape for the translucent wrapping material.
- the wrapping material may have a bottom surface that is parallel to a main extension plane of the semiconductor chip and side surfaces that vary depending on
- the emission characteristic of the optoelectronic semiconductor device can be adjusted.
- the ESD protection zelement can also in the cavity of the
- Subcarrier be incorporated with, for each
- Optoelectronic semiconductor chip at least one ESD Schut zelement in the same cavity as the
- Optoelectronic semiconductor chip can be introduced.
- the conductive layer may be, for example, the
- the conductive layer can be contacted electrically before applying the translucent wrapping material.
- the optoelectronic semiconductor chip can be electrically short-circuited via the needles. In this arrangement, it is then possible, via electrophoretic deposition, to convert a luminescence conversion material containing one or more
- Phosphors may include, on the optoelectronic
- the conductive layer is removed by conversion into a salt, as described above, and the optoelectronic semiconductor chip with the radiation-permeable covering material, for
- Embodiment of the method it is thus possible, even a luminescence conversion material electrophoretically
- a photoresist can be applied in a structured manner and luminescence conversion material can be deposited there by means of electrophoresis, where the photoresist is opened. Subsequently, photoresist and electrically conductive layer are removed. Furthermore, it is possible that a
- Phosphors on the optoelectronic semiconductor chip for example, electrophoretically deposited and other luminescence conversion materials of one or more
- Enveloping material are introduced into the light path of the optoelectronic semiconductor chip.
- Phosphors are applied in different layers successively on the optoelectronic semiconductor chip.
- this includes
- Translucent wrapping material Particles of at least one filler, which are introduced into the refractive index, the optical behavior and / or the thermal behavior of the translucent wrapping material in order to adjust the refractive index.
- Percent by weight be introduced into the translucent wrapping material.
- the following describes the optoelectronic semiconductor component described here and the method described here for producing an optoelectronic semiconductor component based on embodiments and the associated
- FIGS. 3 and 4 show exemplary embodiments of optoelectronic devices described here
- FIGS. 1A to 1F An exemplary embodiment of a method described here is explained in more detail with reference to the schematic sectional views of FIGS. 1A to 1F.
- the subcarrier 2 comprises a base body 21, which is formed with a rigid material such as a metal or a plastic, and a releasable connecting means 22, the base body 21 at its
- the releasable connection means is, for example, a Revalpha film. This is shown in FIG. 1A.
- the subcarrier 2 has cavities, wherein an optoelectronic semiconductor chip 1 is set in each cavity.
- the optoelectronic semiconductor chip 1 is a semiconductor chip with a radiation-transmissive carrier 10, on which a semiconductor layer sequence 11 is epitaxially applied, for example.
- the translucent carrier 10 may be made of sapphire, for example.
- electrical connection points 12 are arranged for electrical contacting of the optoelectronic semiconductor chip. For example, via the electrical connection points 12 an active
- the cavities of the auxiliary carrier 2 are filled with a translucent wrapping material 3, wherein the translucent wrapping material 3 is spread over all the cavities of the substrate
- Subcarrier 2 is related.
- the translucent wrapping material 3 is, for example, a highly filled silicone, which is introduced around the semiconductor chip 1 via a potting process, in which the auxiliary carrier 2 forms part of the mold.
- the translucent wrapping material 3 may be, for example, with luminescence conversion material of one or more
- the luminescence conversion material may be provided, for example, from
- the light-transmissive carrier 10 facing away from underside of the semiconductor layer sequence 11 and in particular the connection points 12 are uncovered from the wrapping material 3.
- particles 41 of a light-scattering and / or light-reflecting material such as titanium dioxide are deposited as a layer on the undersides of the substrate
- Semiconductor layer sequence 11 applied The application of the particles takes place, for example, electrophoretically.
- Particles 41 are introduced in the light-reflecting layer 4, for example, with a weight fraction between 50 and 80 percent, wherein the thickness of the layer
- Terminals 12 of the chip may be kept clear or they will be exposed after completion of the process.
- the application of the particles 41 takes place, for example, as described above electrophoretically.
- the particles 41 are first fixed by means of a gap-passing material 42.
- the gap-passing material 42 penetrates into gaps between the particles 41 and surrounds them. It may be in direct contact with the translucent wrapping material 3 and the semiconductor layer sequence 11 in places. The following is at the optoelectronic
- Each semiconductor chip 1 is brought into contact.
- the layer stack of particles 41, gap-conducting material 42 and electrically conductive material 5 has a reflectivity of> 95 percent.
- the electrically conductive material contains, for example, aluminum. It can, for example, with a layer structure of aluminum, nickel-valadium and gold
- the particles 41 are arranged in a layer which in the present case comprises a layer of particles 41.
- the layer is completely from the gap
- Material 42 penetrated and is in direct contact with the wrapping material 3 and at least in places the
- the gap-passing material 41 may differ in particular from the wrapping material 3.
- Layer applied which may be a solder resist 7 or a varistor layer 8. Subsequently, a dicing along the separation regions 6, wherein after dicing optoelectronic semiconductor devices result, each of which at least one
- the translucent wrapping material 3 therefore has in the region of the separating regions 6 on the finished semiconductor component
- traces of the separation process for example traces of a sawing process on.
- a low-cost sapphire chip can be used, the
- connection points 12 could be mounted, for example, with the translucent support 10 pointing to the mounting surface, the connection points 12 then to
- Example can be contacted via wire contacts.
- the optoelectronic semiconductor chip 1 is mounted inverted and the electrical connection points are contacted directly via the electrically conductive material 5, whose underside facing away from the semiconductor chip 1 serves as a contact point for contacting the optoelectronic semiconductor component. In this way, the optoelectronic
- Heat generated semiconductor chip can be dissipated particularly efficient, since no heat conduction through the transparent carrier 10 is necessary therethrough.
- the reflective layer 4 can advantageously be used
- Processing except for the introduction of the translucent wrapping material 3, can be carried out completely from the bottom of the semiconductor components ago.
- Optoelectronic semiconductor chips are introduced during introduction of the translucent wrapping material. This structure of the optoelectronic semiconductor components proves to be particularly suitable for surface mounting
- the electrical connection points 12 are formed at least in places with a radiation-transmissive material such as a TCO, it may happen that light generated in the optoelectronic semiconductor chip has to pass through the TCO material twice before it is decoupled. This can be at least low
- FIGS. 2A to 2F are respectively in FIGS.
- Sub-figures a, b and c divided.
- the subfigures a show a plan view
- the subfigures b show a
- Sectional view along the dashed line shown in the plan view a and the figures c show a view from below.
- an ESD protective element 9 is inserted into the common cavity of the auxiliary carrier 2 in addition to the optoelectronic
- Optoelectronic semiconductor chip 1 by the electrically conductive material 5 takes place.
- solder stop paste 7 is introduced between the mutually separate regions of the electrically conductive material 5.
- Semiconductor component may be square or almost square.
- the length 1 is 1.9 mm and the width b is 2 mm.
- an exemplary embodiment of the optoelectronic semiconductor component is shown in which two identical optoelectronic semiconductor chips 1 per
- Optoelectronic semiconductor device are installed. This can be realized a chip area of 1 mm 2.
- the Optoelectronic semiconductor device has, for example, a length 1 of 1.9 mm and a width b of 2.6 mm.
- the semiconductor chip 1 has a height of 0.15 mm, and the translucent wrapping material 3 has a maximum thickness of 0.4 mm.
- the semiconductor chip 1 it is possible for the semiconductor chip 1 to be surrounded by the cladding material 3 in a uniform thickness within the scope of the manufacturing tolerance. In this way, if that
- Wrapping material 3 comprises a conversion material, a particularly uniform conversion in all
- ESD protection element is also possible in this embodiment, but not mandatory
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Abstract
Description
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Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112014004180.7T DE112014004180A5 (de) | 2013-09-13 | 2014-08-25 | Optoelektronisches Halbleiterbauteil und Verfahren zur Herstellung eines optoelektronischen Halbleiterbauteils |
| CN201480050633.1A CN105531835B (zh) | 2013-09-13 | 2014-08-25 | 光电子半导体组件和用于制造光电子半导体组件的方法 |
| US15/021,091 US20160218261A1 (en) | 2013-09-13 | 2014-08-25 | Optoelectronic semiconductor component and method of fabricating an optoelectronic semiconductor component |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013110114.3 | 2013-09-13 | ||
| DE102013110114.3A DE102013110114A1 (de) | 2013-09-13 | 2013-09-13 | Optoelektronisches Halbleiterbauteil und Verfahren zur Herstellung eines optoelektronischen Halbleiterbauteils |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015036231A1 true WO2015036231A1 (de) | 2015-03-19 |
Family
ID=51399655
Family Applications (1)
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|---|---|---|---|
| PCT/EP2014/068000 Ceased WO2015036231A1 (de) | 2013-09-13 | 2014-08-25 | Optoelektronisches halbleiterbauteil und verfahren zur herstellung eines optoelektronischen halbleiterbauteils |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20160218261A1 (de) |
| CN (1) | CN105531835B (de) |
| DE (2) | DE102013110114A1 (de) |
| WO (1) | WO2015036231A1 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016180897A1 (de) * | 2015-05-13 | 2016-11-17 | Osram Opto Semiconductors Gmbh | Verfahren zur herstellung optoelektronischer bauelemente und oberflächenmontierbares optoelektronisches bauelement |
| WO2021160596A1 (de) * | 2020-02-11 | 2021-08-19 | Osram Opto Semiconductors Gmbh | Optoelektronische vorrichtung und verfahren |
| WO2022028893A1 (de) * | 2020-08-04 | 2022-02-10 | Osram Opto Semiconductors Gmbh | Strahlungsemittierendes bauelement, verfahren zur herstellung eines strahlungsemittierenden bauelements und modul mit einem strahlungsemittierenden bauelement |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015105486A1 (de) * | 2015-04-10 | 2016-10-13 | Osram Opto Semiconductors Gmbh | Optoelektronisches Bauelement und Verfahren zu seiner Herstellung |
| DE102015109852A1 (de) * | 2015-06-19 | 2016-12-22 | Osram Opto Semiconductors Gmbh | Leuchtdiode und Verfahren zur Herstellung einer Leuchtdiode |
| DE102016101652A1 (de) | 2016-01-29 | 2017-08-03 | Osram Opto Semiconductors Gmbh | Optoelektronisches Bauelement mit Seitenkontakten |
| DE102016106494A1 (de) * | 2016-04-08 | 2017-10-12 | Osram Opto Semiconductors Gmbh | Optoelektronisches bauelement und verfahren zum herstellen eines optoelektronischen bauelements |
| DE102016106851A1 (de) * | 2016-04-13 | 2017-10-19 | Osram Opto Semiconductors Gmbh | Lichtemittierendes Bauelement |
| DE102016111566A1 (de) * | 2016-06-23 | 2017-12-28 | Osram Opto Semiconductors Gmbh | Optoelektronisches bauelement und verfahren zum herstellen eines optoelektronischen bauelements |
| JP6504221B2 (ja) * | 2016-09-29 | 2019-04-24 | 日亜化学工業株式会社 | 発光装置の製造方法 |
| WO2018206084A1 (en) * | 2017-05-09 | 2018-11-15 | Osram Opto Semiconductors Gmbh | Method for fabricating a light emitting semiconductor chip |
| DE102018105085B4 (de) * | 2018-03-06 | 2024-05-02 | OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung | Optoelektronisches Bauteil und Leuchtmittel |
| CN119451365A (zh) * | 2019-01-29 | 2025-02-14 | 日亚化学工业株式会社 | 发光装置 |
| JP7349294B2 (ja) * | 2019-08-29 | 2023-09-22 | 株式会社ジャパンディスプレイ | Ledモジュール及び表示装置 |
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- 2014-08-25 WO PCT/EP2014/068000 patent/WO2015036231A1/de not_active Ceased
- 2014-08-25 US US15/021,091 patent/US20160218261A1/en not_active Abandoned
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| WO2016180897A1 (de) * | 2015-05-13 | 2016-11-17 | Osram Opto Semiconductors Gmbh | Verfahren zur herstellung optoelektronischer bauelemente und oberflächenmontierbares optoelektronisches bauelement |
| US10243117B2 (en) | 2015-05-13 | 2019-03-26 | Osram Opto Semiconductors Gmbh | Method for producing optoelectronic devices and surface-mountable optoelectronic device |
| WO2021160596A1 (de) * | 2020-02-11 | 2021-08-19 | Osram Opto Semiconductors Gmbh | Optoelektronische vorrichtung und verfahren |
| US12414417B2 (en) | 2020-02-11 | 2025-09-09 | Ams-Osram International Gmbh | Optoelectronic device with glass carrier and method of manufacture |
| WO2022028893A1 (de) * | 2020-08-04 | 2022-02-10 | Osram Opto Semiconductors Gmbh | Strahlungsemittierendes bauelement, verfahren zur herstellung eines strahlungsemittierenden bauelements und modul mit einem strahlungsemittierenden bauelement |
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Also Published As
| Publication number | Publication date |
|---|---|
| DE112014004180A5 (de) | 2016-05-25 |
| DE102013110114A1 (de) | 2015-04-02 |
| CN105531835B (zh) | 2018-11-23 |
| CN105531835A (zh) | 2016-04-27 |
| US20160218261A1 (en) | 2016-07-28 |
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