WO2023285355A1 - Verfahren zur herstellung eines optoelektronischen bauelements und optoelektronisches bauelement - Google Patents
Verfahren zur herstellung eines optoelektronischen bauelements und optoelektronisches bauelement Download PDFInfo
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- WO2023285355A1 WO2023285355A1 PCT/EP2022/069269 EP2022069269W WO2023285355A1 WO 2023285355 A1 WO2023285355 A1 WO 2023285355A1 EP 2022069269 W EP2022069269 W EP 2022069269W WO 2023285355 A1 WO2023285355 A1 WO 2023285355A1
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- matrix material
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- semiconductor 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]
- H10H20/01—Manufacture or treatment
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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
- H10H20/83—Electrodes
- H10H20/832—Electrodes characterised by their material
- H10H20/835—Reflective materials
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F71/00—Manufacture or treatment of devices covered by this subclass
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F71/00—Manufacture or treatment of devices covered by this subclass
- H10F71/139—Manufacture or treatment of devices covered by this subclass using temporary substrates
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/30—Coatings
- H10F77/306—Coatings for devices having potential barriers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/93—Interconnections
- H10F77/933—Interconnections for devices having potential barriers
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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
- H10H20/83—Electrodes
- H10H20/831—Electrodes 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
- H10H20/84—Coatings, e.g. passivation layers or antireflective coatings
-
- 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
-
- 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
- H10H20/032—Manufacture or treatment of electrodes
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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
- H10H20/034—Manufacture or treatment of coatings
-
- 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
Definitions
- a method for producing an optoelectronic component is specified.
- an optoelectronic component is specified.
- One problem to be solved is to specify a method for producing an optoelectronic component in which damage due to thermal overload is reduced. Another problem to be solved is to provide an optoelectronic component that is produced using such a method.
- the optoelectronic component is a radiation-emitting component.
- the optoelectronic component it is also possible for the optoelectronic component to be set up to detect electromagnetic radiation.
- the optoelectronic component is a thin-film chip.
- the method comprises a step in which a semiconductor layer sequence is provided.
- a semiconductor layer sequence is provided.
- semiconductor layers follow an active area that leads to this is set up to generate or detect electromagnetic radiation.
- the semiconductor layer sequence can also be produced by an epitaxial growth method.
- the semiconductor layer sequence is, for example, an epitaxial semiconductor layer sequence.
- the method includes a further step in which a matrix material is applied.
- the matrix material contains ferromagnetic particles.
- the matrix material can be indirectly heated by the ferromagnetic particles.
- the ferromagnetic particles are preferably distributed homogeneously over the entire matrix material.
- the ferromagnetic particles have a constant concentration throughout the matrix material. A homogeneous distribution of the ferromagnetic particles over the entire matrix material ensures that the matrix material can be heated evenly.
- the matrix material is designed to be electrically insulating.
- the ferromagnetic particles are heated by induction, with the matrix material at least partially softening.
- the ferromagnetic particles thus transfer thermal energy generated by induction to the matrix material that surrounds the ferromagnetic particles.
- the matrix material also heats up, causing it to soften at least partially.
- the viscosity of the matrix material is reduced by indirect heating by means of the ferromagnetic particles.
- a coil for example with an iron core
- An AC voltage or alternating current is applied to the coil, which creates an alternating field in the ferromagnetic particles.
- the alternating field leads to eddy currents in the ferromagnetic particles and in particular to magnetic reversals. In this case, a loss of heat occurs, which leads to the heating of the ferromagnetic particles.
- the matrix material is cured in a further step of the method.
- the cured matrix material forms at least part of a carrier of the optoelectronic component.
- the matrix material is hardened by cooling it, for example to room temperature.
- the method for producing an optoelectronic component comprises the following steps:
- the inductive heating of the ferromagnetic particles and thus also of the matrix material makes it possible to protect other components of the optoelectronic component from thermal overload during production. This can be explained by the fact that the ferromagnetic particles are selectively heated by the inductive heating. In contrast to conventional heating processes, heat is only introduced at points where ferromagnetic particles are present. The heating of the entire optoelectronic component during production is thus avoided.
- the matrix material is applied as a suspension.
- a powder of the matrix material is suspended in a solvent.
- a solvent In particular, water and/or an alcohol are used as solvents.
- the suspension is applied, for example, by printing processes such as knife coating or screen printing.
- the solvent is preferably removed before the inductive heating of the ferromagnetic particles.
- the matrix material softens due to heat transfer from the ferromagnetic particles.
- the individual components of the powder of the matrix material combine to form a continuous phase.
- the inductive heating of the ferromagnetic particles results in a coherent layer being formed from a powdered matrix material.
- the matrix material is applied as a prefabricated panel.
- the inductive heating of the ferromagnetic particles allows the entire plate to soften and thus fit into any unevenness that may be present.
- the prefabricated panel has a thickness of at least 50 micrometers, preferably at least 100 micrometers, particularly preferably at least 150 micrometers.
- the prefabricated panel has a thickness of 100 microns to 200 microns inclusive.
- the semiconductor layer sequence is grown on a growth substrate.
- the growth substrate is in particular at least partially transparent to electromagnetic radiation.
- the growth substrate is sapphire, GaAs or silicon.
- the growth substrate is sapphire.
- the semiconductor layer sequence is preferably deposited epitaxially on the growth substrate. The growth substrate advantageously serves to produce the semiconductor layer sequence with a low density of defects.
- the growth substrate is at least partially removed after the matrix material has hardened.
- the growth substrate is at least partially removed by a lift-off method, in particular by laser lift-off (LLO).
- LLO laser lift-off
- the at least partial removal of the growth substrate advantageously makes it possible for electromagnetic radiation, which is generated in the active region of the semiconductor layer sequence, to leave the optoelectronic component with little or no radiation loss.
- an optoelectronic component which is set up for the detection of electromagnetic radiation it is made possible for the electromagnetic radiation to be detected to reach the active region with little or no radiation losses.
- the at least partial removal of the growth substrate prevents absorption of electromagnetic radiation by the growth substrate.
- connection structure is applied to the semiconductor layer sequence before the matrix material is applied.
- the connection structure includes a connection layer and connection elements.
- the connection layer and the connection elements preferably have a metal or are formed from a metal.
- the connection layer has Ag or is formed from Ag.
- the connection elements have Ni or Cu or are formed from Ni, Cu or alloys of Ni and/or Cu.
- the connection elements are produced by galvanic deposition.
- the connection structure is preferably used for electrically contacting the semiconductor layer sequence.
- part of the matrix material is removed after the matrix material has hardened.
- the matrix material is removed by chemical mechanical polishing (CMP for short). This creates a flat surface of the matrix material and thus also of the carrier.
- the removal can also serve the
- connection structure is preferably removed in such a way that the connection structure and the matrix material each have a surface that lies in a common plane. In other words, it is possible for the connection structure and the matrix material to end flush.
- the removal of the matrix material leaves traces on the surface of the matrix material, which are visible on a finished component.
- the matrix material comprises an inorganic or organic polymer.
- the matrix material consists of an inorganic or organic polymer.
- the organic polymer is an epoxy resin.
- a filling material is introduced into the organic polymer.
- the matrix material comprises a glass.
- the matrix material consists of a glass.
- the glass is a low-melting glass. Compared to conventional materials for a carrier, in particular organic polymers, glass can have a higher
- glass has temperature stability.
- glass is characterized by low gas permeability and high reliability.
- a multiplicity of optoelectronic components are combined with the method produced. In this way, a large number of optoelectronic components is advantageously produced in an efficient manner.
- the optoelectronic components produced in the composite are separated. For example, they are separated using laser cutting methods or mechanical sawing methods.
- the matrix material is tempered after curing by inductively heating the ferromagnetic particles. Tempering can take place locally or over the entire matrix material, since a locally limited heat input can be achieved by inductively heating the ferromagnetic particles.
- Tempering is understood as meaning heating of a matrix material over a longer period of time, for example up to several days.
- a mechanical stress in the hardened matrix material can be controlled by tempering. If the matrix material is slowly cooled after tempering, internal stresses in the matrix material, which can negatively affect the optical properties of the matrix material, can be prevented. When the matrix material is quenched after annealing, a compressive stress is generated in a surface of the matrix material. The compressive stress leads to a matrix material that is less sensitive to mechanical and/or thermal stress.
- An optoelectronic component is also specified. The optoelectronic component can preferably be produced using the method for producing an optoelectronic component described here. Features and embodiments that are described in connection with the method therefore also apply to the optoelectronic component and vice versa.
- the optoelectronic component comprises a semiconductor layer sequence and a carrier.
- the semiconductor layer sequence is intended to generate or detect electromagnetic radiation.
- the carrier has a matrix material containing ferromagnetic particles.
- connection layer is arranged between the semiconductor layer sequence and the carrier.
- the connection layer is used, for example, for making electrical contact with the semiconductor layer sequence.
- the connection layer preferably comprises a metal or consists of a metal.
- the connection layer comprises Ag or consists of Ag.
- connection layer is reflective at least in places.
- the connection layer can also be designed to be reflective over its entire surface.
- the connection layer has a reflectivity of at least 90%, preferably at least 95%, particularly preferably at least 99% for the electromagnetic radiation generated during operation of the optoelectronic component. It is due to a connection layer that is reflective at least in places possible to increase the efficiency of the optoelectronic component since radiation losses are reduced.
- the optoelectronic component has connection elements for making electrical contact with the semiconductor layer sequence.
- the optoelectronic component preferably has two connection elements.
- the connection elements are in particular formed from a metal such as Ni.
- connection elements reach through the matrix material of the carrier.
- Such an embodiment of the connection elements enables simple electrical contacting of the optoelectronic component.
- An electrical short circuit of the connection elements can be prevented in that the matrix material of the carrier is designed in particular to be electrically insulating.
- connection elements and the carrier close to their der
- connection elements and the carrier each have a surface that lies in a common plane.
- the optoelectronic component can be attached efficiently to a superordinate component by a flush termination of the connection elements and the carrier.
- the flush termination of the connection elements and the carrier has proven to be advantageous, since a good mechanical connection to the superordinate component is achieved by a surface that is as large and flat as possible.
- the matrix material comprises a glass or consists of a glass. Using glass as matrix material advantageously leads to an optoelectronic component that is effectively protected from external influences and has high mechanical stability.
- the glass has a glass transition temperature T g of at most 350°C, preferably at most 300°C.
- T g glass transition temperature
- the glass is therefore a low-melting glass.
- a low glass transition temperature can be
- Processing temperature of the glass can be reduced. This makes it possible to protect further components of the optoelectronic component from thermal overload.
- a reflective connection layer made of Ag is unstable at high temperatures, for example above 350° C., and the reflective connection layer is thus at least partially destroyed.
- the reflectivity of the layer can be adversely affected.
- a glass transition temperature of at most 350° C., preferably at most 300° C. the glass can be processed at low temperatures. This makes it possible to protect the reflective connection layer from being destroyed. In this way, the reflectivity of the reflective connection layer is obtained.
- the glass is a tellurite glass, a bismuth glass, a vanadate glass or a mixture of at least two of these glasses.
- these glasses have a low glass transition temperature, making them ideal for the application described here suit.
- TeC ⁇ l ⁇ Os is used as the glass.
- the glass transition temperature of TeC ⁇ l ⁇ Os is approximately 280°C, which allows processing at a temperature of 300°C.
- the ferromagnetic particles have at least one of the following elements: Fe, Ni, Co.
- the particles can consist of one of the elements mentioned or a compound with the element.
- the ferromagnetic particles are formed from an alloy with at least one of the elements.
- the ferromagnetic particles have a diameter of 10 nanometers up to and including 5 micrometers.
- the ferromagnetic particles preferably have a diameter of 10 nanometers up to and including 1 micrometer, preferably 50 nanometers up to and including 500 nanometers.
- the ferromagnetic particles are present in the matrix material in a proportion of at most 30% by weight, preferably at most 20% by weight, particularly preferably at most 10% by weight.
- the proportion of ferromagnetic particles in the matrix material and the diameter of the ferromagnetic particles enable effective heat input into the matrix material during the inductive heating of the ferromagnetic particles.
- concentration and the particle size of the ferromagnetic particles are like this chosen so that there is no short circuit of the connection elements of the optoelectronic component.
- FIGS. 1A to IC show steps in a method for producing an optoelectronic component in accordance with an exemplary embodiment using schematic sectional illustrations.
- FIGS. 2A to 2E show steps of a method for producing an optoelectronic component according to a further exemplary embodiment using schematic sectional illustrations.
- FIGS. 3 and 4 show the application of a matrix material according to two exemplary embodiments, each using a schematic sectional view.
- FIG. 5 shows an optoelectronic component according to an exemplary embodiment using a schematic sectional illustration.
- the embodiments can have other elements, such as intermediate layers, which are not shown for reasons of clarity.
- a substrate 1 is provided, as shown in connection with FIG. 1A.
- the substrate 1 is a growth substrate for a semiconductor layer sequence 2.
- the substrate 1 is sapphire.
- a semiconductor layer sequence 2 is applied to the substrate 1 and is thus provided. This step is illustrated in connection with Figure 1B.
- Figure 1B the
- Semiconductor layer sequence 2 has an active region 3 which can generate or detect electromagnetic radiation.
- a matrix material 4 is applied to a side of the semiconductor layer sequence 2 that is remote from the substrate 1, as shown in FIG.
- the matrix material 4 is a low-melting glass, such as Te0 2 V 2 0s.
- the matrix material 4 contains ferromagnetic particles 5 and is by means of ferromagnetic particles 5 can be heated by inductive heating.
- the ferromagnetic particles are, for example, nanoparticles that have Fe or consist of Fe.
- the ferromagnetic particles 5 are inductively heated. In the process, the matrix material 4 softens at least partially. A coil is brought into the vicinity of the matrix material 4 with the ferromagnetic particles 5 for the inductive heating. An alternating field is generated in the ferromagnetic particles 5 by applying an alternating current or an alternating voltage. Eddy currents are generated in the ferromagnetic particles 5 by the alternating field and reversal of magnetization can occur in the ferromagnetic particles 5 . This results in heat loss, which leads to heating of the ferromagnetic particles 5 .
- the ferromagnetic particles 5 heated in this way transfer the heat to the matrix material 4 surrounding them.
- the ferromagnetic particles 5 therefore serve to heat the matrix material 4 indirectly. Heating the matrix material 4 leads to a reduction in the viscosity of the matrix material 4. In other words, the matrix material 4 softens.
- the matrix material 4 After the inductive heating of the ferromagnetic particles 4 and thus also of the matrix material 5, the matrix material 4 is hardened. If the matrix material 4 is glass, the hardening takes place by cooling, for example to room temperature. The cured matrix material 4 forms at least part of a carrier 6. The carrier 6 gives the finished optoelectronic component stability and allows easy attachment to higher-level components.
- FIGS. 2A to 2E A method for producing an optoelectronic component according to a further exemplary embodiment is described in connection with FIGS. 2A to 2E.
- the optoelectronic components are presented as a composite and isolated after all process steps have been completed.
- FIG. 2A shows that a connection layer 8 is applied to a side of a semiconductor layer sequence 2 which is remote from a substrate 1 .
- the semiconductor layer sequence 2 is grown epitaxially onto the substrate 1, as described in connection with FIGS. 1A and 1B.
- connection layer 8 in FIG. 2A is a metal layer, for example made of Ag.
- the connection layer 8 enables electrical contacting of the semiconductor layer sequence 2.
- connection layer 8 can be at least partially reflective for electromagnetic radiation that can be generated or detected in the active region 3 of the semiconductor layer sequence 2. This reduces a radiation loss in the finished optoelectronic component.
- Connection elements 9 are applied to the connection layer 8, as shown in FIG. 2B.
- the connection layer 8 and the connection elements 9 together form a connection structure 7.
- a finished optoelectronic component can be connected electrically to a printed circuit board, for example, via the connection elements 9 will.
- the connection elements 9 are made of a metal, in particular Ni.
- connection structure 7 which includes the connection elements 9 and the connection layer 8.
- the matrix material 4 contains ferromagnetic particles 5 and is preferably designed to be electrically insulating.
- the matrix material 4 is a low-melting glass, for example Te0 2 V 2 0s.
- the matrix material 4 is applied in such a way that it completely encloses the connection elements 9 laterally. In other words, all side faces of the connection elements 9 are completely covered by the matrix material 4 .
- the ferromagnetic particles 5 are preferably arranged in the matrix material 4 in such a way that there is no electrical short circuit between two adjacent contact elements 9 . A diameter and a concentration of the ferromagnetic particles 5 in the matrix material are selected accordingly.
- the matrix material is heated by inductively heating the ferromagnetic particles 5 and is thus softened.
- the matrix material 4 is then hardened, for example by cooling to room temperature, and thus forms a carrier 6.
- an annealing of the matrix material 4 by re-heating by means of inductive heating ferromagnetic particles 5 are carried out.
- Optical and/or mechanical properties of the matrix material 4 can be influenced by the tempering.
- the matrix material 4 is hardened by tempering.
- the substrate 1 is removed by laser lift-off, as shown in connection with FIG. 2D.
- radiation losses for example absorption of electromagnetic radiation caused by the substrate 1 and generated or detected in the active region 3 of the semiconductor layer sequence 2, are avoided or at least reduced.
- connection elements 9 are uncovered by the removal of the matrix material 4 and can be used for electrically contacting the semiconductor layer sequence 2 .
- an optoelectronic component the components produced in the composite are separated using a separation process.
- a matrix material 4 containing ferromagnetic particles 5 is applied as a plate 10 .
- the matrix material 4 softens.
- the viscosity of the matrix material 4 decreases 2 are applied.
- All exposed surfaces of the connection elements 9 are preferably covered with the matrix material 4 .
- the connection elements 9 and underlying layers can be protected from mechanical stress by the matrix material.
- the matrix material 4 can be applied as a suspension 11 .
- the suspension 11 has particles of the matrix material 4 and the ferromagnetic particles 5, which are suspended in a solvent.
- a mixture of water and an alcohol, for example, is used as the solvent.
- a binder can also be added to the suspension 11 .
- the suspension 11 is applied to the connection structure 7 by a printing process, such as squeegeeing or screen printing. Due to the low viscosity of the suspension 11, the suspension covers the connection structure 7 completely. This means that all surfaces of the connection structure 7 that are exposed before the matrix material 4 is applied are covered by the suspension 11 .
- connection structure 7 is then mainly surrounded by particles of the matrix material 4 and the ferromagnetic particles 5 .
- the matrix material 4 is heated by means of the ferromagnetic particles 5 so that a coherent carrier 6 is formed from the matrix material 4 applied as a suspension 11 .
- the ferromagnetic particles 5 are heated by induction and transfer their heat to the matrix material 4 surrounding them.
- the particles of the matrix material 4 soften as a result of the heating and combine to form a continuous and cohesive layer.
- FIG. 5 shows an optoelectronic component 12 according to an exemplary embodiment which can be represented using a method described here.
- the optoelectronic component 12 has a semiconductor layer sequence 2 which includes an active region 3 .
- the active area 3 is set up to generate electromagnetic radiation.
- the optoelectronic component is, for example, a light-emitting diode chip.
- connection layer 8 is arranged on the semiconductor layer sequence 2 .
- the connection layer 8 is preferably a metal layer which is at least partially reflective.
- the connection layer 8 has Ag or is formed from Ag.
- the connection layer 8 serves to reflect electromagnetic radiation that is generated in the active region 3 and thus to avoid or at least reduce radiation losses in the optoelectronic component 12 .
- the Semiconductor layer sequence 2 are electrically contacted via the connection layer 8.
- the optoelectronic component 12 has two connection elements 9 which are set up for electrically contacting the semiconductor layer sequence 2 .
- the connection elements are made of a metal, in particular Ni.
- the two connection elements 9 and the connection layer 8 together form a connection structure 7 .
- the connection elements 9 are applied to a side of the connection layer 2 which is remote from the semiconductor layer sequence 2 .
- the optoelectronic component 12 also has a carrier 6 for mechanical stabilization.
- the carrier 6 comprises a matrix material 4.
- the matrix material 4 is designed to be electrically insulating. This prevents the connection elements 9 from short-circuiting.
- the matrix material 4 is, for example, a low-melting glass, in particular TeChl ⁇ Os. The use of a low-melting glass as matrix material 4 is preferred, since this reduces thermal stress on other elements of the optoelectronic component 12, in particular the connection layer 8, during production.
- organic polymers such as an epoxy resin
- the optoelectronic component 12 can withstand higher temperatures.
- connection elements 9 completely surrounds the side surfaces of the connection elements 9 .
- the connection elements 9 extend through the matrix material 4 .
- the connection layer 8 facing away from the surfaces Connection elements 9 and the matrix material 4 are flush with one another.
- the matrix material 4 contains ferromagnetic particles 5.
- the ferromagnetic particles 5 can be used to heat the matrix material 4 indirectly.
- the ferromagnetic particles 5 are preferably heated by induction.
- the ferromagnetic particles 5 have Fe or are formed from Fe.
- the ferromagnetic particles are evenly distributed in the matrix material 4 in order to achieve an even heat input into the matrix material 4 .
- the ferromagnetic particles 5 are nanoparticles that have a diameter of 50 nanometers up to and including 500 nanometers.
- the proportion of ferromagnetic particles 5 in the matrix material is at most 40% by weight.
- connection structure 8 connection layer
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Abstract
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Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2024501627A JP7684510B2 (ja) | 2021-07-14 | 2022-07-11 | 光電子コンポーネントの製造方法、及び光電子コンポーネント |
| US18/576,346 US20240347676A1 (en) | 2021-07-14 | 2022-07-11 | Method of producing an optoelectronic component, and optoelectronic component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021118151.8A DE102021118151B4 (de) | 2021-07-14 | 2021-07-14 | Verfahren zur herstellung eines optoelektronischen bauelements und optoelektronisches bauelement |
| DE102021118151.8 | 2021-07-14 |
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| WO2023285355A1 true WO2023285355A1 (de) | 2023-01-19 |
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| PCT/EP2022/069269 Ceased WO2023285355A1 (de) | 2021-07-14 | 2022-07-11 | Verfahren zur herstellung eines optoelektronischen bauelements und optoelektronisches bauelement |
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|---|---|
| US (1) | US20240347676A1 (de) |
| JP (1) | JP7684510B2 (de) |
| DE (1) | DE102021118151B4 (de) |
| WO (1) | WO2023285355A1 (de) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090179214A1 (en) * | 2008-01-11 | 2009-07-16 | Industrial Technology Research Institute | Light eitting device with magnetic field |
| CN101783279B (zh) * | 2009-01-15 | 2011-11-16 | 展晶科技(深圳)有限公司 | 分离两种材料的方法 |
| KR101290507B1 (ko) * | 2012-06-04 | 2013-07-26 | 한국광기술원 | 자성 형광체를 구비한 발광다이오드 패키지 제조방법 및 이에 의해 제조된 발광다이오드 패키지 |
| US20150091036A1 (en) * | 2013-10-01 | 2015-04-02 | Gwangju Institute Of Science And Technology | Light emitting diode |
| US20170077348A1 (en) * | 2015-09-16 | 2017-03-16 | Samsung Electronics Co., Ltd. | Semiconductor light-emitting device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008021676A1 (de) | 2008-04-28 | 2009-10-29 | Osram Opto Semiconductors Gmbh | Bauteil mit einem ersten und einem zweiten Substrat und Verfahren zu dessen Herstellung |
| DE102010006072A1 (de) | 2010-01-28 | 2011-08-18 | OSRAM Opto Semiconductors GmbH, 93055 | Optoelektronisches Halbleiterbauteil und Verwendung eines optoelektronischen Halbleiterbauteils in einem Kfz-Schweinwerfer |
| JP2013247243A (ja) | 2012-05-25 | 2013-12-09 | Toshiba Corp | 半導体発光装置 |
| DE102012209513A1 (de) | 2012-06-06 | 2013-12-12 | Osram Opto Semiconductors Gmbh | Verbinder, Verfahren zum Verbinden zweier Körper und elektronische Anordnung |
| JP6394052B2 (ja) | 2013-05-13 | 2018-09-26 | 日亜化学工業株式会社 | 発光装置及びその製造方法 |
-
2021
- 2021-07-14 DE DE102021118151.8A patent/DE102021118151B4/de active Active
-
2022
- 2022-07-11 JP JP2024501627A patent/JP7684510B2/ja active Active
- 2022-07-11 WO PCT/EP2022/069269 patent/WO2023285355A1/de not_active Ceased
- 2022-07-11 US US18/576,346 patent/US20240347676A1/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090179214A1 (en) * | 2008-01-11 | 2009-07-16 | Industrial Technology Research Institute | Light eitting device with magnetic field |
| CN101783279B (zh) * | 2009-01-15 | 2011-11-16 | 展晶科技(深圳)有限公司 | 分离两种材料的方法 |
| KR101290507B1 (ko) * | 2012-06-04 | 2013-07-26 | 한국광기술원 | 자성 형광체를 구비한 발광다이오드 패키지 제조방법 및 이에 의해 제조된 발광다이오드 패키지 |
| US20150091036A1 (en) * | 2013-10-01 | 2015-04-02 | Gwangju Institute Of Science And Technology | Light emitting diode |
| US20170077348A1 (en) * | 2015-09-16 | 2017-03-16 | Samsung Electronics Co., Ltd. | Semiconductor light-emitting device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021118151B4 (de) | 2024-09-19 |
| DE102021118151A1 (de) | 2023-01-19 |
| US20240347676A1 (en) | 2024-10-17 |
| JP2024529336A (ja) | 2024-08-06 |
| JP7684510B2 (ja) | 2025-05-27 |
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