WO2014029804A1 - Optoelektronisches bauelement und verfahren zur herstellung eines optoelektronischen bauelements - Google Patents
Optoelektronisches bauelement und verfahren zur herstellung eines optoelektronischen bauelements Download PDFInfo
- Publication number
- WO2014029804A1 WO2014029804A1 PCT/EP2013/067383 EP2013067383W WO2014029804A1 WO 2014029804 A1 WO2014029804 A1 WO 2014029804A1 EP 2013067383 W EP2013067383 W EP 2013067383W WO 2014029804 A1 WO2014029804 A1 WO 2014029804A1
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- WO
- WIPO (PCT)
- Prior art keywords
- reflector
- semiconductor chip
- recess
- radiation
- region
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00865—Applying coatings; tinting; colouring
-
- 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
-
- 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
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W90/00—Package configurations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
-
- 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
Definitions
- An optoelectronic component is specified.
- the component has at least one first semiconductor chip.
- the component may have a second, third, fourth or further semiconductor chip.
- the first semiconductor chip is preferably one based on a III-V semiconductor material
- the first semiconductor chip is suitable for emitting electromagnetic radiation.
- the first semiconductor chip is suitable for emitting electromagnetic radiation.
- the first semiconductor chip emits light, for example.
- the first semiconductor chip can also be ultraviolet (UV) or
- the first semiconductor chip is preferably an LED chip.
- the first semiconductor chip may be a high-performance semiconductor chip. That is, the first semiconductor chip may have a power consumption of at least 1W, in particular at least 3W.
- the first semiconductor chip can be designed for direct illumination.
- the first semiconductor chip can be used as a light-emitting chip for the flash function of a camera.
- Semiconductor chip can also be used particularly well for the backlighting of displays in low light conditions.
- the first semiconductor chip can also emit IR radiation for the flash function of a mobile phone or as an emitter for a distance sensor.
- the first semiconductor chip may be
- the semiconductor chip as an IR emitter for a
- the semiconductor chip can emit colored, multicolored or white light, for example.
- All semiconductor chips that is to say the first, the second, the third, the fourth and each further semiconductor chip, of the component can be identical in construction.
- the device it is possible for the device to be of different types, in particular also based on different semiconductor materials
- semiconductor chips which are preferably designed for emission in different spectral ranges. In this case, different semiconductor chips for different wavelengths.
- the device further comprises a housing.
- the component is preferably a surface-mountable device (SMD or surface mounted device).
- the housing of the component is surface mountable.
- the housing is designed to receive the first semiconductor chip.
- the housing is designed to protect the semiconductor chip from external
- the housing has at least one first recess.
- the recess is formed as a recess, recess or cavity in a base body of the housing. In principle, any form of the
- an opening of the recess in a plan view of the recess may have a round, angular or elliptical shape.
- the recess is preferably funnel-shaped or cone-shaped.
- the first semiconductor chip is arranged in the first recess.
- the first semiconductor chip is attached to a bottom of the recess.
- the semiconductor chip is gebonded to the ground, so in particular soldered or glued electrically conductive.
- At the bottom of the recess can be a connection conductor or a connection point exposed, via which the semiconductor chip is electrically connected.
- the first recess is formed at least in places, in particular completely as a first reflector.
- the first recess or the first reflector is designed to reflect the radiation generated during operation of the first semiconductor chip.
- the first recess or the first reflector has a surface. The surface is arranged around the first semiconductor chip. The surface is
- the surface is for targeted adjustment of a radiation characteristic of the first Semiconductor chip formed in operation radiated radiation.
- the device can be adapted exactly to the conditions required for its particular application.
- the surface can be configured at least in places, in particular completely, such that the radiation emitted by the component is directed or specularly reflected.
- the surface can do so
- Focusing or directed reflection in this context means that the incident
- Radiation is scattered by less than or equal to +/- 15 ° to the surface normal. This may prove to be particularly advantageous when the device is for radiating IR
- IR radiation can be from one
- an IR-emitting device which is used for example for the IR flash function of the mobile phone together with an IR camera, is not perceived as irritating, dazzling or disturbing.
- the surface may be at least in places, in particular completely configured such that the radiation emitted by the component is diffuse, i. in several
- Scattering and / or reflection in this context means that the incident radiation is up to +/- 60 ° to the
- the device is provided for generating visible radiation in order not to dazzle or irritate a user by too focused radiation.
- the surface may be configured to be both focused and diffused by the radiation emitted by the device. That is, in different places or
- a lens for example, is required
- the surface has at least one first and at least one second region.
- the first region may have an extent, that of the extent of the second region
- the first area may be larger than the second area or vice versa.
- the first region of the surface may, for example, be arranged in a section of the recess which is arranged close to the semiconductor chip, ie, near the bottom of the recess.
- the second area may be in a section of the recess
- the first region of the surface is designed to diffuse and / or scatter the radiation emitted by the first semiconductor chip.
- the first region can in particular optically expand the radiation.
- the second area of the surface is designed to be more directionally aligned with the radiation emitted by the first semiconductor chip
- the second area of the surface is designed to be from the
- Semiconductor chip emitted radiation to focus. In other words, depending on the area of the surface encountered by the radiation, the radiation is reflected either diffusely or directionally. Radiation that hits the first area becomes, for example, in all directions,
- the first area of the surface has a higher area
- Roughness measurement of the first region is preferably greater than or equal to the wavelength of the first
- the surface roughness and in particular the arithmetic mean of the absolute values is one
- the average roughness Ra of the first range 1.0 to 2.0 times the wavelength of the radiation emitted by the first semiconductor chip radiation.
- the styrene resin for example, at 1.5 ⁇ .
- the styrene resin for example, at 1.5 ⁇ .
- the surface roughness and in particular an arithmetic mean of the absolute values of a roughness measurement of the second region is preferably smaller than the wavelength of the radiation emitted by the first semiconductor chip. The smaller the surface roughness of the second region, the more
- the incident on the second area radiation is reflected.
- the incident on the second area radiation is reflected.
- the average roughness Ra of the second region is preferably less than or equal to 0.1 ⁇ m, for example 0.09 ⁇ m, in order to produce a specular reflection of the radiation emitted by the semiconductor chip Radiation to reach through the second area.
- ⁇ 0.4 ⁇ to 0.8 ⁇
- Ra of the second region preferably less than or equal to 0.08 ⁇ , for example, 0.04 ⁇ or 0.01 ⁇ to a specular reflection of the radiated from the semiconductor chip radiation through the second region to reach.
- the housing has at least one second recess.
- the second recess is in particular as a second reflector
- the housing may also have a third, fourth or further recess designed as a reflector.
- the second or each further recess can be configured identically, like the first recess.
- the second and / or each further recess may have a same diameter of its surface facing away from the bottom surfaces
- the second and / or each further recess may have the same shape as the first recess.
- the second and / or each further recess may have a smaller size or a smaller diameter than the first recess.
- the second and / or each further recess may be less deep
- the second and / or each further recess may have a different shape than the first recess.
- the second and / or each further recess is oval or round.
- a second semiconductor chip is arranged in the second recess.
- the second semiconductor chip is bonded to a bottom of the second recess, ie
- Reflector is designed to at least predominantly diffuse the radiation emitted by the first semiconductor chip
- the second reflector and in particular the
- the second reflector is designed to reflect the emitted radiation from the second semiconductor chip predominantly directed.
- the second is
- Reflector designed to reflect the emitted radiation from the second semiconductor chip directionally, as the first reflector reflects the radiation emitted by the first semiconductor chip radiation.
- IR-emitted semiconductor chip For example, to combine an IR-emitted semiconductor chip and a semiconductor chip that emits visible radiation in a device.
- radiation emitted by the semiconductor chip can preferably be reflected in a directionally directed manner (second semiconductor chip).
- the visible radiation of the other (first) semiconductor chip is then preferably diffusely scattered and / or reflected.
- the surface roughness of the first reflector is greater than the surface roughness of the second reflector.
- the surface of the first reflector is preferably greater than or equal to the wavelength of the radiation emitted by the first semiconductor chip.
- the surface of the first reflector is preferably greater than or equal to the wavelength of the radiation emitted by the first semiconductor chip.
- Surface of the second reflector is preferably smaller than the wavelength of the second semiconductor chip
- the surface roughness of the second reflector the more directed the radiation incident on the second reflector is reflected.
- the surface roughness and in particular the arithmetic mean of the absolute values is one
- the housing is formed from a plastic.
- the housing is preferably in an injection molding process produced.
- the method of the metal piated frame implementation is described in detail in the document WO 2011/157515 Al, the disclosure of which is hereby by
- the surface of the first reflector at least partially has a metallic layer. This is particularly the case for components which are formed with the aid of MID technology. Preferably, the entire surface of the first reflector on the metallic layer.
- the metallic layer allows a high yield of the semiconductor chip.
- the metallic layer serves to reflect the radiation impinging on the surface.
- the metallic layer can simultaneously act as an electrical connection conductor of the device.
- the metallic layer may comprise, for example, aluminum (Al), silver (Ag), copper (Cu), nickel (Ni) and / or gold (Au).
- Al aluminum
- Ag silver
- Cu copper
- Ni nickel
- Au gold
- Reflector or the first recess is preferably thicker than the metallic layer in the first region of the first reflector or the first recess.
- the metallic layer in the first region has a thickness which corresponds to 10% to 90% of the thickness of the metallic view in the second region. Depending on the roughness of the
- Plastic surface under the metallic layer, the metallic layer in the first region has a thickness of less than or equal to 1 ⁇ , for example 0.05 ⁇ on.
- Metallic layer in the second region preferably has a thickness of greater than or equal to 10 ⁇ , for example, 15 ⁇ , on. Due to the thicker design of the metallic layer in the second region, the second region of the first
- Reflector has a lower surface roughness, as the first region of the first reflector.
- the surface of the second region is made smooth by the thicker metallic layer in the second region. This reflects radiation that hits the second area more directionally than radiation that strikes the first area.
- the surface of the second reflector preferably has at least partially a metallic layer.
- Layer of the first reflector is preferably thinner than the metallic layer of the second reflector.
- the metallic layer of the first reflector has a thickness that corresponds to 10% to 90% of the thickness of the metallic view of the second reflector. Due to the thicker design of the metallic layer in the second reflector, the second reflector has a lower surface roughness, as the first reflector. In this way, radiation which is emitted by the second semiconductor chip and impinges on the second reflector is reflected more directly than radiation which is emitted by the first semiconductor chip and then impinges on the first reflector.
- the targeted application and design of the metallic layer so that the emission characteristics of the device can be selectively adjusted and a particular
- the following methods are made of a MID technology based device.
- the component produced thereby preferably corresponds to the component described here. All disclosed for the device features are therefore also disclosed for the process and vice versa.
- the method comprises the following steps:
- the housing is provided.
- the housing is preferably provided by an injection molding step.
- the housing is preferably made of a
- the housing has at least the above-described first recess.
- the housing has a plurality, for example, two, three or four recesses.
- the recesses are spatially separated from each other.
- At least one semiconductor chip in particular the first semiconductor chip described above, is provided.
- a plurality for example, two, three or four semiconductor chips
- the metallic layer is formed at least in a region of the surface of the recess, preferably on the entire surface of the recess.
- the metallic layer is formed by electroplating or electroless plating of the metallic layer at least in one area of the metal layer
- Metallic layer on the surface of the recess or the reflector is a reflective surface
- the formation of the metallic layer on the surface of the recess or the reflector also serves to selectively adjust the radiation characteristic of the radiated from the device during operation radiation.
- the metallic layer is made to be thinner in the above-described first region than in the second region described above, and / or thinner in at least one reflector than in at least one other
- the semiconductor chip is bonded to the bottom of the recess, so in particular soldered or glued electrically conductive.
- the housing obtained by the injection molding step, and particularly the recess has one through the manufacturing process and the material used
- the surface roughness can be adjusted specifically.
- Surface roughness can be formed by applying a thinner metallic layer with which the incident radiation can be scattered diffused and / or reflected. Furthermore, areas / reflectors with
- Abstrahl characterizing can be achieved by simply varying already required production steps and parameters, and no additional components are required, the device or its production is particularly cost.
- the method comprises the following steps: In a first step, an injection mold or an injection mold for producing the housing of the component is provided by means of an injection molding process. In a next step, at least one polishing takes place
- the surface roughness of the injection mold determines the roughness of the
- Surface roughness of the respective plastic surface of the housing can be modified or adjusted. The stronger or longer the surface or the area of the surface of the injection molding tool is polished, the lower is the
- the area of the surface of the injection molding tool which is provided for forming the first recess is thereby, for example, shorter and / or less polished than the area of the surface of the injection molding tool which for
- Forming a further recess is provided.
- the surface roughness of the surface of the further recess is more reduced or less than the surface roughness of the surface of the first recess.
- the area of the surface of the first recess is provided.
- Injection tool which is provided for forming the above-described second region and / or the second reflector is polished smoother than the area of the surface of the Injection tool which is provided for forming the above-described first region and / or the first reflector.
- the housing described above is provided by an injection molding step.
- the housing has at least the above-described first recess.
- the housing has a plurality, for example, two, three or four recesses.
- the recesses are spatially separated from each other.
- the respective recess has a surface.
- Surface has a surface roughness on which is targeted by the targeted polishing of the surface of the injection mold.
- at least one semiconductor chip in particular the first semiconductor chip described above, is provided.
- a plurality is provided.
- the number of semiconductor chips corresponds to the number of recesses formed in the housing.
- the metallic layer is applied over the entire surface.
- the application is carried out by sputtering or thermal evaporation. In this way, a reflective
- the metallic layer is included preferably so thin that by polishing the
- the metallic layer does not affect the roughness of the surface.
- the metallic layer for example, conforms to the underlying surface.
- the metallic layer has a thickness of about 100 nm.
- the semiconductor chip is bonded to the bottom of the recess.
- the recess as described above, one through the manufacturing process, by polishing the
- the surface roughness of the individual areas of the housing can be adjusted specifically.
- areas / reflectors with higher surface roughness can be formed by shorter and / or weaker polishing of the associated areas of the injection molding tool. These areas / reflectors scatter and / or reflect the incident radiation diffusely.
- the emission characteristic can be achieved by simply varying production steps and parameters which are required in any case, and no additional components are required, the component or its production is particularly cost-effective.
- FIG. 1 shows a perspective view of a
- Optoelectronic component according to at least one embodiment,
- FIG. 2 shows a top view of the optoelectronic device
- FIG. 3A shows a cross section of at least one part of the optoelectronic component from FIG. 1,
- FIG. 3B shows a radiation characteristic of the FIG.
- FIG. 4A shows a cross section of at least one part of the optoelectronic component from FIG. 1,
- FIG. 4B shows a radiation characteristic of the FIG Optoelectronic component of Figure 4A.
- FIG. 1 shows an optoelectronic component 1.
- Component 1 has a housing 2.
- the housing 2 is made of a plastic, preferably by means of an injection molding process.
- the component 1 is preferably a surface-mountable component.
- the housing 2 of the component 1 is surface mountable
- the housing 2 has four recesses 3, 3A.
- the housing has a first recess 3A and three further recesses 3.
- the housing 2 can also have fewer than four recesses 3, 3A, for example one, two or three recesses 3, 3A (not explicitly shown).
- the housing 2 can also have more than four recesses 3, 3A
- the recesses 3, 3A are formed in a base body 2A of the housing 2.
- the recesses 3, 3A ask
- the recesses 3, 3A are formed differently.
- the first recess 3A has a greater extent than the other three
- the first recess 3A has a larger one Diameter, as the three other recesses 3.
- the first recess 3A may also be formed deeper than the three further recesses 3.
- the recesses 3, 3A but also have an identical size.
- the recesses 3, 3A have a different shape.
- the first recess 3A is funnel-shaped. But also every other shape is for the first recess 3A
- the first recess 3A may be angular, round, or elliptical.
- the further recesses 3 have a rounder shape than the first recess 3A.
- the first recess 3A and each further recess 3 can also have the same shape.
- a semiconductor chip 4, 4A is arranged in the respective recess 3, 3A.
- the semiconductor chips 4, 4A are bonded to a bottom of the recess 3, 3A.
- a first semiconductor chip 4A is arranged in the first recess 3A.
- the first semiconductor chip 4A is preferably a high-performance semiconductor chip.
- the first semiconductor chip 4A is designed for illumination.
- the first semiconductor chip 4A emits electromagnetic radiation, preferably light or IR radiation.
- the first semiconductor chip 4A emits electromagnetic radiation, preferably light or IR radiation.
- Semiconductor chip 4A as a light-emitting chip for the
- Flash function of a camera can be used.
- Semiconductor chip 4A can also use IR radiation for the
- a further semiconductor chip 4 is arranged in each case.
- the semiconductor chips 4 are preferably low-energy semiconductor chips.
- the further semiconductor chips 4 are designed for illumination.
- the semiconductor chips 4 emit electromagnetic
- Radiation preferably light or IR radiation.
- the respective recess 3, 3A is designed as a reflector.
- the respective recess 3, 3A serves to
- the radiation characteristic depends on the characteristics of the respective reflector, as detailed below
- the recesses 3, 3A or reflectors have a
- the surface 5 is the respective
- the reflective surface 5 is coated with a metallic layer.
- Metallic layer may have, for example, Al, Ag, Cu, Ni and / or Au.
- the first reflector formed by the first recess 3A has a reflecting surface 5 with a high
- the surface roughness of the reflective surface 5 of the first reflector is higher than the surface roughness of the respective reflective surface 5 of the further reflectors formed by the further recesses 3 are (see Figure 3A).
- the surface roughness of the reflective surface 5 can be influenced by various factors. In one embodiment, the surface roughness is of a thickness of
- the surface roughness of the respective recess 3, 3A can be influenced by a targeted polishing of the area of the surface of the injection mold, which is provided in the manufacturing process for forming the respective recess 3, 3A, as will be described in detail below.
- Reflective surface 5 of the first reflector is greater than or equal to the wavelength of the emitted radiation from the first semiconductor chip 4A.
- the first semiconductor chip 4A the wavelength of the emitted radiation from the first semiconductor chip 4A.
- Semiconductor chip 4A emitted radiation.
- Reflectors formed by the further recesses 3 are smaller than the respective wavelength of the radiation emitted by the further semiconductor chips 4.
- the surface roughness and in particular the arithmetic mean of the absolute values is one
- the first reflector formed by the first recess 3A reflects and / or diffuses diffusely the radiation emitted by the first semiconductor chip 4A. The bigger the
- incident radiation from the reflective surface 5 is reflected and / or scattered.
- Abstrahl decisionizing 6 of the first semiconductor chip 4A can be set specifically. Under diffuse reflection, the reflection of the incident radiation in all
- Diffuse scattering and / or reflection means, in particular in this context, that the incident radiation is up to +/- 60 ° to the
- the first semiconductor chip 4A is provided for generating visible radiation in order not to irritate or disturb a user of the component 1.
- the radiation of the further semiconductor chips 4 is reflected more directionally than the radiation of the first semiconductor chip 4A. The smaller the
- Focusing or directed Reflection in this context means that the
- incident radiation is scattered by less than or equal to +/- 15 ° to the surface normal (see radiation characteristic 6 in Figure 3B). This can prove to be particularly advantageous if the respective semiconductor chip 4 is provided for the emission of IR radiation. IR radiation can not be provided by a user, such as a cell phone owner
- an IR emitting device that, for example, for the flash function of the phone
- the first reflector (formed by the first recess 3A) can also have a smaller surface roughness than the other reflectors, so that the radiation emitted by the first semiconductor chip 4A is reflected in a more directed manner than the radiation emitted by the further semiconductor chips 4 ,
- the first reflector or the reflective surface 5 of the first reflector may have different areas.
- a first area can be a higher
- Recesses 3 formed) reflectors or the respective reflective surface 5 each have the first and second regions described above.
- the reflective surface 5 of the first reflector and at least one of the further reflectors may have the first and second regions described above.
- the component 1 described above is produced according to a first embodiment as follows (see also FIG. 2).
- the manufacturing process is geared in particular to the Molded Interconnect Device (MID)
- the housing 2 is provided.
- the provision of the housing 2 is effected by a
- the respective recess 3, 3A has in particular a surface made of plastic. Due to the injection molding process and the material used, the surface of the respective recess 3, 3A has a certain surface roughness.
- the semiconductor chips 4, 4A described above are provided.
- the reflective surface 5 of the respective recess is formed. This is done by galvanic or electroless deposition of the metallic layer on the surface of the respective reflector. In this case, the deposition of the metallic layer takes place in such a way that the metallic layer of the reflective surface 5 of the first reflector is thinner than the metallic layer of the reflective surface of the further reflectors, ie the reflectors formed by the further recesses 3.
- the reflective surface 5 of the other reflectors thus has a lower
- the reflective surface 5 of the first reflector has a surface roughness approximately equal to the surface roughness of the underlying reflector
- Plastic surface corresponds, since the metallic layer of the reflective surface 5 of the first reflector, the roughness of the plastic surface due to their only small thickness not or at least not completely
- Semiconductor chips 4 reflects reflected as the radiation of the first semiconductor chip 4A.
- reflective surface 5 at least one of the four
- Reflectors having the first and second regions described above a thinner metallic layer is applied in the first region, as in the second region. In this way, the first area has a higher one
- the respective semiconductor chip 4, 4A is arranged in the respective recess 3, 3A.
- the first semiconductor chip 4A is arranged in the first recess 3A, preferably bonded to the bottom of the first recess 3A.
- the further semiconductor chips 4 are each arranged in a further recess 3, preferably bonded to the bottom of the respective further recess 3.
- the respective reflector can still with a
- Embodiment prepared as follows (see also Figure 2).
- the manufacturing process is geared in particular to the Metal Piated Frame Implementation
- the housing 2 described above is provided.
- the provision of the housing 2 is also effected by an injection molding process. That by the Injection molding resulting housing 2 is made
- the respective recess 3, 3A each has a surface made of plastic.
- the surface roughness of the injection mold determines, after the injection molding of the housing 2, the roughness of the surface of the housing 2 and in particular of the recesses 3, 3A.
- Injection molding step for forming the first recess 3A is provided, it is shorter and / or less polished than the surface of the injection mold, which is provided for forming the further recesses 3. In this way, the surface roughness of the surfaces of the further recesses 3 after production of the housing 2 is less than the surface roughness of the surface of the first recess 3.
- the surface of the first recess 3A has a higher surface roughness, as the respective surface of the further recesses.
- Injection tool and the material used has the Surface of the respective recess 3, 3A consequently to a specific or set surface roughness.
- the reflective surface 5 of the respective recess 3, 3A is formed. This is done by sputtering or thermal vapor deposition of the metallic layer on the respective plastic surface. With the help of a mask can be obtained a desired structuring of the metallic layer.
- the metallic layer produced thereby is thinner than the metallic layer produced in the MID technology based method described above.
- a MID technology-based method is described in the publication US2007 / 0269927, the disclosure of which is hereby expressly incorporated by reference.
- the metallic layer produced here has a thickness of about 100 nm.
- the metallic layer in this embodiment can not compensate for the surface roughness of the plastic surface of the respective recess 3, 3A. Balancing the surface roughness of the
- Plastic surface of the first recess 3A has the reflective surface 5 of the first recess has a higher surface roughness than the reflective ones
- reflective surface 5 at least one of the four
- the first region is formed by the targeted polishing of the injection molding tool less smooth than the second region. In this way, the first region has a higher surface roughness than the second region.
- the respective semiconductor chip 4, 4A is arranged in the respective recess 3, 3A.
- the first semiconductor chip 4A is arranged in the first recess 3A, preferably bonded to the bottom of the first recess 3A.
- the further semiconductor chips 4 are each arranged in a further recess 3, preferably bonded to the bottom of the respective further recess 3.
- the respective reflector can still with a
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Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| JP2015527904A JP5969706B2 (ja) | 2012-08-24 | 2013-08-21 | 光電部品および光電部品の製造方法 |
| US14/420,961 US9356211B2 (en) | 2012-08-24 | 2013-08-21 | Optoelectronic component and method of producing an optoelectronic component |
| CN201380055822.3A CN104756266B (zh) | 2012-08-24 | 2013-08-21 | 光电器件和用于制造光电器件的方法 |
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| DE102012107829.7A DE102012107829B4 (de) | 2012-08-24 | 2012-08-24 | Optoelektronische Bauelemente und Verfahren zur Herstellung eines optoelektronischen Bauelements |
| DE102012107829.7 | 2012-08-24 |
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| WO2014029804A1 true WO2014029804A1 (de) | 2014-02-27 |
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| JP (1) | JP5969706B2 (de) |
| KR (1) | KR102079838B1 (de) |
| CN (1) | CN104756266B (de) |
| DE (1) | DE102012107829B4 (de) |
| WO (1) | WO2014029804A1 (de) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013114345A1 (de) * | 2013-12-18 | 2015-06-18 | Osram Opto Semiconductors Gmbh | Optoelektronisches Halbleiterbauelement und Verfahren zur Herstellung eines optoelektronischen Halbleiterbauelements |
| KR102170218B1 (ko) * | 2014-08-05 | 2020-10-26 | 엘지이노텍 주식회사 | 발광소자 패키지 |
| CN105977360B (zh) * | 2016-06-17 | 2018-08-14 | 东莞市国瓷新材料科技有限公司 | 具有良好气密性的led支架的制作工艺 |
| JP6729254B2 (ja) | 2016-09-30 | 2020-07-22 | 日亜化学工業株式会社 | 発光装置及び表示装置 |
| KR102632274B1 (ko) * | 2016-10-31 | 2024-02-05 | 주식회사 아모센스 | 센서용 발광 다이오드 모듈 |
| KR102513882B1 (ko) * | 2016-12-07 | 2023-03-27 | 루미리즈 홀딩 비.브이. | 원격 통신 기능을 갖는 플래시 라이트 방출기 |
| TWI820026B (zh) * | 2017-06-21 | 2023-11-01 | 荷蘭商露明控股公司 | 具有改善的熱行為的照明組件 |
| DE102020112969B4 (de) * | 2020-05-13 | 2024-02-15 | OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung | Strahlungsemittierender halbleiterchip, rücklicht für ein kraftfahrzeug und kraftfahrzeug |
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| JP4603368B2 (ja) * | 2003-02-28 | 2010-12-22 | オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング | 構造化された金属被覆を施されたパッケージボディを有するオプトエレクトロニクス素子、この種の素子を製作する方法、およびプラスチックを含むボディに、構造化された金属被覆を施す方法 |
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| DE102005028748A1 (de) | 2004-10-25 | 2006-05-04 | Osram Opto Semiconductors Gmbh | Elektromagnetische Strahlung emittierendes Halbleiterbauelement und Bauelementgehäuse |
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| DE102010012712A1 (de) | 2010-03-25 | 2011-09-29 | Osram Opto Semiconductors Gmbh | Licht emittierendes Halbleiterbauteil |
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| DE102010023955A1 (de) | 2010-06-16 | 2011-12-22 | Osram Opto Semiconductors Gmbh | Optoelektronisches Bauteil |
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2012
- 2012-08-24 DE DE102012107829.7A patent/DE102012107829B4/de active Active
-
2013
- 2013-08-21 CN CN201380055822.3A patent/CN104756266B/zh active Active
- 2013-08-21 JP JP2015527904A patent/JP5969706B2/ja active Active
- 2013-08-21 KR KR1020157004097A patent/KR102079838B1/ko active Active
- 2013-08-21 US US14/420,961 patent/US9356211B2/en active Active
- 2013-08-21 WO PCT/EP2013/067383 patent/WO2014029804A1/de not_active Ceased
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| US20070269927A1 (en) * | 2003-02-28 | 2007-11-22 | Osram Opto Semiconductors Gmbh | Method for producing an optoelectronic device with patterned-metallized package body and method for the patterned metalization of a plastic-containing body |
| US20070030675A1 (en) * | 2005-08-08 | 2007-02-08 | Oon Su L | Light-emitting diode module for flash and auto-focus application |
| DE102007060202A1 (de) * | 2007-12-14 | 2009-06-25 | Osram Opto Semiconductors Gmbh | Polarisierte Strahlung emittierendes Halbleiterbauelement |
| US20090244903A1 (en) * | 2008-03-27 | 2009-10-01 | Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. | Illumination Assembly With Diffusive Reflector Cup |
| US20100210045A1 (en) * | 2009-02-13 | 2010-08-19 | Hymite A/S | Opto-electronic device package with a semiconductor-based sub-mount having smd metal contacts |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015529393A (ja) | 2015-10-05 |
| JP5969706B2 (ja) | 2016-08-17 |
| US9356211B2 (en) | 2016-05-31 |
| DE102012107829A1 (de) | 2014-02-27 |
| CN104756266B (zh) | 2017-10-20 |
| CN104756266A (zh) | 2015-07-01 |
| DE102012107829B4 (de) | 2024-01-25 |
| KR20150046037A (ko) | 2015-04-29 |
| KR102079838B1 (ko) | 2020-02-20 |
| US20150221840A1 (en) | 2015-08-06 |
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