EP2272309A1 - Optoelektronisches bauelement - Google Patents
Optoelektronisches bauelementInfo
- Publication number
- EP2272309A1 EP2272309A1 EP09737723A EP09737723A EP2272309A1 EP 2272309 A1 EP2272309 A1 EP 2272309A1 EP 09737723 A EP09737723 A EP 09737723A EP 09737723 A EP09737723 A EP 09737723A EP 2272309 A1 EP2272309 A1 EP 2272309A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- optoelectronic component
- carrier
- base body
- component according
- chip carrier
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- H10F77/60—Arrangements for cooling, heating, ventilating or compensating for temperature fluctuations
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistors
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistors electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistors electrically connecting electric components or wires to printed circuits by soldering
- H05K3/341—Surface mounted components
-
- 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
- H10F77/50—Encapsulations or containers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/8506—Containers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/857—Interconnections, e.g. lead-frames, bond wires or solder balls
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
- H05K1/0203—Cooling of mounted components
- H05K1/0204—Cooling of mounted components using means for thermal conduction connection in the thickness direction of the substrate
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10121—Optical component, e.g. opto-electronic component
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10613—Details of electrical connections of non-printed components, e.g. special leads
- H05K2201/10621—Components characterised by their electrical contacts
- H05K2201/10727—Leadless chip carrier [LCC], e.g. chip-modules for cards
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10613—Details of electrical connections of non-printed components, e.g. special leads
- H05K2201/10954—Other details of electrical connections
- H05K2201/10969—Metallic case or integral heatsink of component electrically connected to a pad on PCB
-
- 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
- H10W70/62—Insulating or insulated package substrates; Interposers; Redistribution layers characterised by their interconnections
- H10W70/65—Shapes or dispositions of interconnections
- H10W70/657—Shapes or dispositions of interconnections on sidewalls or bottom surfaces of the package substrates, interposers or redistribution layers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- An optoelectronic component is specified.
- One of the objects to be solved is, inter alia, to specify an optoelectronic component which is particularly temperature-stable.
- the optoelectronic component comprises a connection carrier.
- the connection carrier is, for example, a printed circuit board. That is, the connection carrier comprises a base body and electrical connection points and electrical conductor tracks, which are structured in or on the base body.
- the base body has a coefficient of thermal expansion of at most 12 * 10 -6 / K in at least one direction, Preferably, the base body has this low coefficient of thermal expansion in directions which run parallel to a mounting surface of the connection carrier At least in directions that run parallel to this mounting surface, the base body of the connection carrier then has a thermal expansion coefficient of at most 12 * 10 "e / K on its upper side.
- the component comprises a chip carrier.
- the chip carrier has an upper side, on which at least one optoelectronic semiconductor chip is arranged.
- Optoelectronic semiconductor chip is, for example, a luminescence diode chip.
- the optoelectronic semiconductor chip is a laser diode chip or a light-emitting diode chip.
- the optoelectronic semiconductor chip can also be a detector chip, such as a photodiode chip.
- optoelectronic semiconductor chips of different types-for example, luminescence diode chips and detector chips-to be arranged on the upper side of the chip carrier.
- the chip carrier also has an underside facing away from the top. At least one contact layer, which is electrically conductively connected to the at least one optoelectronic semiconductor chip, is located on the underside. The at least one contact layer serves for the electrical connection of the at least one optoelectronic semiconductor chip.
- the chip carrier is fastened with its lower side to the upper side of the connection carrier and connected in an electrically conductive manner to the connection carrier by means of the at least one contact layer. That is, the chip carrier is attached to the top of the connection carrier on this and electrically contacted via the connection carrier.
- the component comprises a connection carrier comprising a base body with an upper side, wherein the base body has a thermal expansion coefficient of at most 12 * 10 -5 s / K in at least one direction
- a chip carrier having an upper side, on which at least one optoelectronic semiconductor chip is arranged, and a lower side, on which there is at least one contact layer, which is electrically conductively connected to the at least one optoelectronic semiconductor chip.
- the chip carrier is fastened with its lower side to the upper side of the connection carrier and is electrically conductively connected to the connection carrier by means of the at least one contact layer.
- the optoelectronic component described here is characterized, inter alia, by the low thermal expansion coefficient of the main body of the connection carrier in at least one direction.
- the base body has the low coefficient of thermal expansion at least in directions which run parallel to a mounting surface of the connection carrier on which the chip carrier is fastened. But it is also possible that the base body has such a low thermal expansion coefficient in all directions.
- the material of the main body may be isotropic in terms of the thermal expansion coefficient.
- connection carrier which is arranged on the chip carrier, heats up the chip carrier. Furthermore, the connection carrier also heats up. Due to the low thermal expansion coefficient of the main body of the connection carrier thermal stresses on the
- connection points between chip carrier and connection carrier reduced. Overall, the optoelectronic component is therefore also with repeated heating and subsequent Cooling of chip carrier and connection carrier thermally very stable.
- the chip carrier comprises a main body with a cover surface on the upper side of the chip carrier and a bottom surface on the underside of the chip carrier.
- the main body of the chip carrier further has at least one side surface which connects the top surface and the bottom surface with each other.
- the contact layer on the underside of the chip carrier is formed as part of a metallization, which extends from the bottom surface via the at least one side surface to the top surface of the main body of the chip carrier.
- the at least one optoelectronic semiconductor chip is electrically conductively connected to the metallization and therefore also to the contact layer, which is formed by a part of the metallization.
- the contact layer is preferably formed by the part of the metallization that is located on the bottom surface of the main body of the chip carrier. That is, instead of contacts on the side surfaces of the main body of the chip carrier, the contact layer is laid by means of the metallization to the bottom on the bottom surface of the main body of the chip carrier.
- the chip carrier is surface mountable in this way, that is, it can be mounted on the connection carrier in SMT technology (SMT - Surface Mount Technology).
- the main body of the chip carrier is formed with a ceramic material.
- the main body of the chip carrier can consist of a ceramic material. The ceramic material with which the - S -
- Base body of the chip carrier is formed, preferably has a thermal expansion coefficient of at most 8 * 10 "6 / K.
- the main body made of AlN, which has a thermal expansion coefficient of 4.5 * 10 " 6 / K. Furthermore, it is possible that the
- Body consists of A12O3, which has a thermal expansion coefficient between about 7 * 10 '6 / K to 8 * 10 ⁇ 6 / K.
- the low thermal expansion coefficient of the main body of the chip carrier further increases the thermal stability of the device.
- the metallization on the top surface, side surface and bottom surface of the base body of the chip carrier contains or consists of gold.
- the metallization is for example as
- the metallization can be applied by sputtering or vapor deposition structured on the body.
- the thickness of the metallization is preferably at most 1 .mu.m, more preferably at most 500 nm.
- the particularly thin metallization which consists for example of gold, is characterized, inter alia, by the fact that hardly diffuses metal from the metallization in an adjacent solder and due to the small thickness there leads to embrittlement and consequently reduced thermal stability. That is, the metallization can contribute to the increased thermal stability of the optoelectronic device.
- a solder stop layer is locally applied to the bottom surface of the chip carrier.
- the solder stop layer is in close proximity to the contact layer, which serves as a part of the metallization of the Basic body is formed.
- the solder stop layer preferably borders directly on the contact layer.
- the solder stop layer may consist of at least one of the following materials or contain at least one of the following materials: chromium, aluminum, silicon dioxide,
- solder stop layer can be applied in the same way as the metallization on the base body of the chip carrier.
- the main body of the connection carrier contains aluminum or an aluminum-containing alloy.
- the aluminum or the aluminum-containing alloy particles are introduced, which consist of SiC.
- the main body can also consist of this material.
- a base body formed with or from this material may have a thermal expansion coefficient of between about 6 * 10 -5 / K and 12 * 10 -5 / s .
- the SiC particles are preferably distributed as homogeneously as possible in the matrix material, that is to say the aluminum or the aluminum alloy.
- the grain size of the silicon carbide (SiC) particles is for example between 5 .mu.m and 100 .mu.m.
- the proportion of the silicon carbide particles in the matrix material is preferably in the range between 1 and 40 weight percent, for example in the range of 10 to 20 weight percent.
- the incorporation of the silicon carbide particles into the matrix material may be accomplished by, for example, a laser-induced powder coating process or Al infiltration.
- the main body of the connection carrier contains at least one of the following composites: CuW, CuMo, ceramic matrix composites (CMC).
- copper is embedded in a tungsten or molybdenum matrix.
- the base body can contain or consist of a composite material, which is formed by molybdenum, which is arranged between two copper layers.
- the composites described are distinguished by particularly low coefficients of thermal expansion, which can be in the range of 5 * 10 -6 to 10 * 10 -5 e / K. Furthermore, they have a high thermal conductivity between 100 and 350 W / mK.
- the base body consists of one of the following materials: molybdenum, tungsten.
- the main body of the connection carrier contains a copper-aluminum alloy. Copper-aluminum alloys are characterized by particularly low thermal
- the main body of the connection carrier consists of a copper-molybdenum-copper composite material in which at least one molybdenum layer is arranged between two copper layers.
- the main body of the connection carrier contains carbon fibers, in particular graphite fibers, which are embedded in a matrix material.
- the matrix material is copper.
- the carbon fibers are pressed, for example as a graphite fiber network in the copper.
- a basic body which consists of this material, has in the area, that is in directions parallel to one
- the carbon fibers also have a thermal conductivity which is higher than that of copper.
- the carbon fibers preferably run transversely and / or parallel to the heat absorption side. That is, they run, for example, parallel or substantially parallel to the mounting surface of the connection carrier.
- a base body which consists of the described material, may have a thermal conductivity of 300 W / mK up to 600 W / mK.
- the thermal conductivity of copper is about 390 W / mK, that of graphite at about 600 W / raK.
- the matrix material is epoxy resin.
- a base made of a material comprising carbon fibers in an epoxy resin is particularly easy to produce, since the carbon fibers, for example, can be easily soaked in epoxy resin. Subsequently, the epoxy resin is cured. In this way, a base body is produced, which has a thermal conductivity of about 400 to 600 W / mK.
- the base body has a very low coefficient of thermal expansion in the range of the thermal expansion coefficient of glass: Preferably, the thermal expansion coefficient is at most 8.0 * 10 " ⁇ l / K
- the matrix material contains glass fibers as an alternative to or in addition to the carbon fibers.
- the admixture of glass fibers can contribute to a further mechanical stabilization of the body.
- FIGS. 1A, 1B, 2A, 2B show schematic plan views of chip carriers according to various exemplary embodiments, as used in exemplary embodiments of components described here.
- FIG. 3 shows, in a schematic sectional illustration, an optoelectronic component described here according to one exemplary embodiment.
- FIG. 4 shows a basic body for a connection carrier of a component described here in a schematic perspective view.
- 5 shows a schematic sectional view of an optoelectronic component described here according to an embodiment.
- FIG. 1A shows, in a schematic plan view, the upper side 21 of a chip carrier 2 for an exemplary embodiment of an optoelectronic component described here.
- FIG. 1B shows a schematic top view of the underside 22 of the chip carrier.
- the chip carrier 2 comprises a top surface 27. On the
- a metallization 30 is arranged.
- the metallization 30 extends from the top surface 27 via side surfaces 29 (as layer 23 a) to the bottom surface 28.
- the metallization 30 on the bottom surface 28 forms a contact layer 23b.
- the chip carrier 2 With the contact layer 23b, the chip carrier 2 can be mounted on a connection carrier 1 (cf. FIG. 3) and mechanically fastened there.
- the layers 23a shown in the figure IB in the vicinity of the edge of the chip carrier 2 can serve, for example, for electrical contacting and mechanical attachment.
- the large-area contact layer 23b in the center of the chip carrier 2 serves, for example, for electrical Contacting and mechanical fastening and thermal connection of the chip carrier 2.
- optoelectronic semiconductor chips 3 On the upper side 21 of the chip carrier 2 are optoelectronic semiconductor chips 3, in this case, for example
- the optoelectronic semiconductor chips 3 are surrounded by a frame 25.
- the . Optoelectronic semiconductor chips 3 are, for example, connected on the n side via wire contacts 6 to the metallizations 30.
- the optoelectronic semiconductor chips 3 can be mounted over the whole area on a part of the metallization 30, for example soldered.
- the metallization 30 here consists of gold and has a thickness of 0.2 .mu.m to 10 .mu.m, preferably of 0.5 .mu.m.
- the chip carrier 2 comprises a main body 26, on which the metallization 30 is applied, which consists of a ceramic material such as AlN or A12O3.
- FIG. 2A shows in a schematic plan view the
- FIG. 2B shows, in a schematic plan view, the underside 22 of this chip carrier.
- the optoelectronic semiconductor chips 3 are not arranged in a matrix here, but along a line.
- the contact layers 23b which are used for electrical contacting of the optoelectronic semiconductor chips 3, are separated from the layers 23a by a solder stop layer 24.
- the layers 23a, 23b are made of gold, for example, and have a thickness of less than 0.5 ⁇ m.
- the solder stop layer 24 consists, for example, of one of the following materials: chromium, aluminum, silicon dioxide, aluminum oxide, platinum, NiCr.
- FIG. 3 shows an optoelectronic semiconductor component described here according to an exemplary embodiment in a schematic sectional representation.
- a chip carrier 2 is mounted on the connection carrier 1, as described in conjunction with FIGS. 1A and 1B.
- the sectional view takes place along the section line AA.
- the connection carrier 1 comprises a base body 12.
- the base body 12 has an upper side 11, on which the chip carrier 2 is fastened.
- a layer 13 is applied, which may consist of an electrically insulating material (in the region 13b) or is electrically conductive (in the region 13a).
- conductor tracks 14 are structured, via which the chip carrier 2 is electrically and / or thermally and / or mechanically connected.
- connection carrier 1 and the chip carrier 2 preferably takes place via a solder connection by means of the solder 4.
- the base body 12 of the connection carrier 1 is characterized by a particularly low coefficient of thermal expansion in directions 40 which run parallel to the mounting surface 12a of the base body 12.
- the main body 12 can be designed as indicated above, that is, the base body 12 of the connection carrier 1 contains or consists of aluminum or an aluminum-containing alloy, in which or the particles are embedded from SiC.
- the base body 12 of the connection carrier 1 contains at least one of the following composite materials or consists of at least one of the following materials: CuW, CuMo, ceramic
- Fiber composite material (CMC - Ceramic Matrix Composites), Mo, W, Cu-Mo-Cu coating material.
- connection carrier 1 may contain or consist of a copper-aluminum alloy.
- FIG. 4 shows a schematic perspective view of a main body 12 for a connection carrier 1 for a further exemplary embodiment of an optoelectronic component described here.
- carbon fibers 51 and glass fibers 52 are arranged in a matrix material 53.
- the matrix material 53 is, for example, epoxy resin or copper.
- the glass fibers 52 are optional and can be the mechanical ones
- the fibers 51, 52 may extend in directions parallel and / or perpendicular to the mounting surface 12 a of the main body 12.
- FIG. 5 shows an optoelectronic described here
- connection carrier 1 is formed with a main body 12 which comprises an electrically insulating region 61 and an electrically conductive region 60.
- the electrically insulating region 61 is formed, for example, by a matrix material of epoxy containing glass fibers.
- the electrically insulating region 61 has a thermal expansion coefficient of less than 17 * 10- ⁇ / K, preferably less than 12 * 10 -5 s / K.
- the electrically conductive region 60 is formed from a metal such as copper or aluminum of the electrically conductive region 60 is formed by a solderable intermediate layer 62.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Led Device Packages (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008021092 | 2008-04-28 | ||
| DE102008044641A DE102008044641A1 (de) | 2008-04-28 | 2008-08-27 | Optoelektronisches Bauelement |
| PCT/DE2009/000521 WO2009132615A1 (de) | 2008-04-28 | 2009-04-16 | Optoelektronisches bauelement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2272309A1 true EP2272309A1 (de) | 2011-01-12 |
Family
ID=41111937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09737723A Withdrawn EP2272309A1 (de) | 2008-04-28 | 2009-04-16 | Optoelektronisches bauelement |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2272309A1 (de) |
| KR (1) | KR20110018863A (de) |
| CN (1) | CN101971717B (de) |
| DE (1) | DE102008044641A1 (de) |
| WO (1) | WO2009132615A1 (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012142371A (ja) * | 2010-12-28 | 2012-07-26 | Mitsubishi Electric Corp | 半導体パッケージ |
| DE102012103166B4 (de) * | 2012-04-12 | 2025-02-06 | Endress+Hauser SE+Co. KG | Druckmesszelle und Verfahren zu ihrer Herstellung |
| DE102013201327A1 (de) | 2013-01-28 | 2014-07-31 | Osram Gmbh | Leiterplatte, optoelektronisches Bauteil und Anordnung optoelektronischer Bauteile |
| DE102016102633B4 (de) * | 2016-02-15 | 2019-01-17 | Automotive Lighting Reutlingen Gmbh | Leiterplatte |
| CN108257922A (zh) * | 2016-12-29 | 2018-07-06 | 比亚迪股份有限公司 | 一种散热基板及其制备方法和应用以及电子元器件 |
| CN108257923A (zh) * | 2016-12-29 | 2018-07-06 | 比亚迪股份有限公司 | 一种散热基板及其制备方法和应用以及电子元器件 |
| DE102017119344A1 (de) * | 2017-08-24 | 2019-02-28 | Osram Opto Semiconductors Gmbh | Träger und Bauteil mit Pufferschicht sowie Verfahren zur Herstellung eines Bauteils |
| DE102020201869A1 (de) | 2020-02-14 | 2021-08-19 | Robert Bosch Gesellschaft mit beschränkter Haftung | Schaltungsträger mit einer keramischen Lotstopp-Barriere |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4318954A (en) * | 1981-02-09 | 1982-03-09 | Boeing Aerospace Company | Printed wiring board substrates for ceramic chip carriers |
| US4609586A (en) * | 1984-08-02 | 1986-09-02 | The Boeing Company | Thermally conductive printed wiring board laminate |
| US5306571A (en) * | 1992-03-06 | 1994-04-26 | Bp Chemicals Inc., Advanced Materials Division | Metal-matrix-composite |
| US5305571A (en) * | 1992-08-28 | 1994-04-26 | Trevino Jose A | Structural frame assembly |
| DE19821544A1 (de) * | 1998-05-14 | 1999-12-16 | Jenoptik Jena Gmbh | Diodenlaserbauelement und Verfahren zu dessen Herstellung |
| JP2002225167A (ja) * | 2001-02-01 | 2002-08-14 | Mitsumi Electric Co Ltd | ガラスエポキシ基板及び磁気ヘッド装置 |
| JP3509809B2 (ja) * | 2002-04-30 | 2004-03-22 | 住友電気工業株式会社 | サブマウントおよび半導体装置 |
| DE10320838B4 (de) * | 2003-05-08 | 2014-11-06 | Rogers Germany Gmbh | Faserverstärktes Metall-Keramik/Glas-Verbundmaterial als Substrat für elektrische Anwendungen, Verfahren zum Herstellen eines derartigen Verbundmaterials sowie Verwendung dieses Verbundmaterials |
| JP2005056916A (ja) * | 2003-08-05 | 2005-03-03 | Toyota Industries Corp | 回路基板 |
| DE102004024156B4 (de) * | 2004-03-31 | 2011-01-13 | Osram Opto Semiconductors Gmbh | Kantenemittierender Diodenlaser |
| CN1930680B (zh) * | 2004-08-06 | 2011-08-17 | 联合材料公司 | 集合基板 |
| KR100765945B1 (ko) * | 2004-08-06 | 2007-10-10 | 가부시끼가이샤 아라이도 마테리아루 | 집합기판, 반도체소자 탑재부재, 반도체장치, 촬상장치,발광다이오드 구성부재, 및 발광다이오드 |
| DE102005031336B4 (de) * | 2005-05-13 | 2008-01-31 | Osram Opto Semiconductors Gmbh | Projektionseinrichtung |
| DE102006017294A1 (de) * | 2005-12-30 | 2007-07-05 | Osram Opto Semiconductors Gmbh | Optisch pumpbare Halbleitervorrichtung |
| DE102006059702A1 (de) * | 2006-09-29 | 2008-04-03 | Osram Opto Semiconductors Gmbh | Optoelektronisches Bauelement |
-
2008
- 2008-08-27 DE DE102008044641A patent/DE102008044641A1/de not_active Withdrawn
-
2009
- 2009-04-16 WO PCT/DE2009/000521 patent/WO2009132615A1/de not_active Ceased
- 2009-04-16 KR KR1020107019177A patent/KR20110018863A/ko not_active Ceased
- 2009-04-16 CN CN2009801090784A patent/CN101971717B/zh not_active Expired - Fee Related
- 2009-04-16 EP EP09737723A patent/EP2272309A1/de not_active Withdrawn
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2009132615A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101971717A (zh) | 2011-02-09 |
| KR20110018863A (ko) | 2011-02-24 |
| CN101971717B (zh) | 2012-12-26 |
| WO2009132615A1 (de) | 2009-11-05 |
| DE102008044641A1 (de) | 2009-10-29 |
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