Source: http://www.google.com/patents/US6645783?dq=patent:+7360079
Timestamp: 2014-12-25 01:19:34
Document Index: 264816676

Matched Legal Cases: ['art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 12', 'art 4', 'art 4', 'art 4']

Patent US6645783 - Method of producing an optoelectronic component - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsThe optoelectronic component has a radiation-receiving or radiation-emitting semiconductor chip mounted on a base part. The chip is contacted with at least two electrode terminals made of an electrically conductive connection material. The electrode terminals are formed by a thin coating, which is deposited...http://www.google.com/patents/US6645783?utm_source=gb-gplus-sharePatent US6645783 - Method of producing an optoelectronic componentAdvanced Patent SearchPublication numberUS6645783 B1Publication typeGrantApplication numberUS 09/556,413Publication dateNov 11, 2003Filing dateApr 24, 2000Priority dateOct 23, 1997Fee statusPaidAlso published asCN1166007C, CN1216868A, CN1267977C, CN1527371A, DE19746893A1, DE19746893B4, EP0911886A2, EP0911886A3, EP2259349A2, EP2259349A3, EP2259350A2, EP2259350A3Publication number09556413, 556413, US 6645783 B1, US 6645783B1, US-B1-6645783, US6645783 B1, US6645783B1InventorsHerbert Brunner, Hans HurtOriginal AssigneeSiemens AktiengesellschaftExport CitationBiBTeX, EndNote, RefManPatent Citations (10), Non-Patent Citations (5), Referenced by (20), Classifications (28), Legal Events (7) External Links: USPTO, USPTO Assignment, EspacenetMethod of producing an optoelectronic componentUS 6645783 B1Abstract The optoelectronic component has a radiation-receiving or radiation-emitting semiconductor chip mounted on a base part. The chip is contacted with at least two electrode terminals made of an electrically conductive connection material. The electrode terminals are formed by a thin coating, which is deposited on the outer surfaces of the base part, is applied by electrodeposition and is patterned by means of laser etching.
We claim: 1. In a method of producing an optoelectronic component, wherein a radiation-receiving or radiation-emitting semiconductor chip is mounted on a base part and is connected to at least two electrode terminals of electrically conductive connection material, and the component is contacted via the electrode terminals, the improvement which comprises:
covering the base part with a thin coating made of the electrically conductive connection material including copper by deposition from a liquid; patterning the thin coating to form individual regions of the coating electrically insulated from one another; selectively depositing a further thin layer of auxiliary masking material including tin, on a number of predetermined regions of the thin coating by electrodeposition with external electric current, for increasing a layer thickness of the thin coating at the predetermined regions; selectively removing, by etching, regions of the thin coating on the base part that have not been thickened in the depositing step; and mounting the radiation-receiving or radiation-emitting semiconductor chip on at least one of the base part and the auxiliary masking material and electrically connecting the semiconductor chip to at least one of the electrically conductive connection material and the auxiliary masking material forming the at least two electrode terminals of the component. 2. The method according to claim 1, wherein the covering step comprises depositing the thin coating chemically and without an external electric current.
providing a base part; covering the base part with a thin base part coating of electrically conductive connection material by depositing from a liquid; depositing a thin layer of auxiliary masking material including tin, on the thin base part coating and patterning the auxiliary masking material to form a mask with regions of the thin base part coating covered by the auxiliary masking material and regions not covered by the auxiliary masking material; selectively etching and removing the thin base part coating in the regions that are not covered by the auxiliary masking material; and mounting a radiation-receiving or radiation-emitting semiconductor chip on the base part and electrically connecting the semiconductor chip to the electrically conductive connection material forming at least two electrode terminals of the component. 9. The method according to claim 8, wherein the covering step comprises depositing the thin coating chemically and without an external electric current.
CROSS-REFERENCE TO RELATED APPLICATION This is a division of U.S. application Ser. No. 09/178,199, filed Oct. 23, 1998 now abandoned.
BACKGROUND OF THE INVENTION FIELD OF THE INVENTION The invention relates to an optoelectronic component having a radiation-receiving or radiation-emitting semiconductor chip, which is fastened to or on a base part and is connected to at least two electrode terminals made of an electrically conductive material. The electrode terminals serve to electrically contact the component. The invention furthermore relates to a method for producing such an optoelectronic component.
SUMMARY OF THE INVENTION It is accordingly an object of the invention to provide an optoelectric component and production method, which overcomes the disadvantages of the heretofore-known devices and methods of this general type and which specifies an optoelectronic component, in particular SMT optocomponent (SMT=Surface Mounted Technology) and a method for its production which, with an even further reduced structural size of the component, enables cost-effective production in particular in conjunction with high numbers, even with different designs.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagrammatic sectional view of a completed optoelectronic component in the form of a light-emitting diode with a lens for surface mounting;
DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the figures of the drawing in detail and first, particularly, to FIG. 1 thereof, there is seen a light-emitting diode (LED) that is illustrative as an exemplary embodiment of the optoelectronic component according to the invention. A semiconductor chip 1 forms the radiation-emitting element of the LED. A base part 4�a chip carrier�is coated, on predetermined portions of its outer surfaces, with two electrode terminals 2, 3 made of an electrically conductive material which, in particular, includes copper. In this case, the electrically conductive area of the first electrode terminal 2, proceeding from a portion 5 on the top side of the base part 4, said top side facing the semiconductor chip 1, extends across edge portions 6 as far as portions 7 on the underside of the base part 4. Correspondingly, the area of the second electrode terminal 3 extends on the other side of the base part 4, proceeding from a portion 8, across edge portions 9 as far as portions 10 on the underside of the base part 4. The semiconductor chip 1 is expediently fastened by means of a suitable conductive adhesive on the portion 5 of the electrode terminal 2. Contact is made between the chip 1 and the second electrode terminal 3 via a bonding wire 11. A lens part 12 made of transparent plastic is formed on the base part 4. The base part 4 may have an incorporated heat sink 13 made of copper.
After the completion of the base part 4 with electrode terminals 2, 3�still in the interconnection of the body 14�the semiconductor chip 1 is bonded and the connecting wire 11 is contacted. If required, the base part can be configured in such a way that it is also possible to mount a plurality of semiconductor chips per structural part, as a rule more than two electrode terminals being required in this case. The lens 12 is subsequently applied. This can be carried out using a suitably designed molding plate whose molds form the lens body and which can be aligned with the chip carrier composite. The individual molds are filled with epoxy resin, for example, and the chip carrier substrate is centered with the face downward onto the molding plate. After initial curing of the epoxy resin for the lenses, the substrate is released from the mold and the epoxy resin lenses can still be post-cured if required. Subsequently, the chip carrier body 14 provided with the lenses is separated into individual structural parts or else arrays by means of a sawing process. For optimal wiring up, the �conductor tracks� of the electrode terminals 2, 3 can likewise be severed by sawing. Subsequently, the separated components or arrays can, with the use of an automatic machine, be tested and packaged. The packaging can be effected either in so-called tapes or else in tubes, particularly in the case of arrays. Moreover, further packagings can be used, for example by means of a structural part carrier sheet or the like.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS5629564 *Feb 23, 1995May 13, 1997International Business Machines CorporationElectroplated solder terminalUS5877561Nov 18, 1996Mar 2, 1999Lg Semicon Co., Ltd.Plate and column type semiconductor package having heat sinkDE3128187A1Jul 16, 1981Feb 3, 1983Joachim SiegOpto-elektronisches bauelementEP0062300A2Mar 31, 1982Oct 13, 1982FRITZ WITTIG Herstellung gedruckter SchaltungenProcess for making a circuit boardEP0493051A1Dec 19, 1991Jul 1, 1992Sharp Kabushiki KaishaReflective type photo-interrupterEP0641152A1Aug 24, 1994Mar 1, 1995Polyplastics Co. Ltd.Process for forming a circuit with a laser and component formed therebyJPH0463163A Title not availableJPH02154134A Title not availableJPH09293800A Title not availableJPS612371A Title not available* Cited by examinerNon-Patent CitationsReference1"The Enhanced and Suppressed Electroless Plating of Copper by UV-Irradiation" (Ishikawa et al.), Japanese Journal of Applied Physics, vol. 27, No. 9, Sep. 1988, pp. 1764-1767.2Derwent Abstract of German Published, Non-Prosecuted Application No. DE 31 28 187 A1 (Sieg et al.), dated Feb. 1983.3Japanese Patent Abstract No. 01283883 (Tadaaki), dated Nov. 15, 1989.4Japanese Patent Abstract No. 61096778 (Toru), dated May 15, 1986.5US 5,814,937, 9/1998, Okazaki (withdrawn)Referenced byCiting PatentFiling datePublication dateApplicantTitleUS6949771 *Apr 23, 2002Sep 27, 2005Agilent Technologies, Inc.Light sourceUS6975011 *Apr 6, 2004Dec 13, 2005Osram Gmbhinner surface of the trough is designed in such a way that it constitutes a reflector for the radiation emitted and/or received by the semiconductor chip.US7012277 *Dec 23, 2003Mar 14, 2006Sharp Kabushiki KaishaSemiconductor light emitting deviceUS7012315 *Oct 31, 2001Mar 14, 2006Micron Technology, Inc.Frame scale package using contact lines through the elementsUS7030418 *Mar 25, 2004Apr 18, 2006Opnext Japan, Inc.Chip carrier does not deteriorate the frequency characteristics of optical semiconductor operating at a high speedUS7161190 *Aug 1, 2005Jan 9, 2007Sharp Kabushiki KaishaSemiconductor light-emitting device and method of manufacturing the sameUS7199454Dec 2, 2004Apr 3, 2007Osram GmbhOptoelectronic semiconductor componentUS7205573 *Feb 5, 2004Apr 17, 2007Epistar CorporationLight-emitting device having a compound substrateUS7250663May 24, 2005Jul 31, 2007Micron Technology, Inc.Frame scale package using contact lines through the elementsUS7476913 *Aug 10, 2004Jan 13, 2009Renesas Technology Corp.Light emitting device having a mirror portionUS7605402Nov 18, 2005Oct 20, 2009Opnext Japan, Inc.Structure of chip carrier for semiconductor optical device, optical module, and optical transmitter and receiverUS7675132 *Aug 11, 2005Mar 9, 2010Osram GmbhSurface mounting optoelectronic component and method for producing sameUS7679100Sep 25, 2006Mar 16, 2010Osram Opto Semiconductors GmbhHousing for an electromagnetic radiation emitting optoelectronic component, component and method of making a housing or a componentUS7812869May 11, 2007Oct 12, 2010Aptina Imaging CorporationConfigurable pixel array system and methodUS8097937 *Oct 10, 2003Jan 17, 2012Osram AgLeadframe and housing for radiation-emitting component, radiation-emitting component, and a method for producing the componentUS8101962 *Oct 6, 2009Jan 24, 2012Kuang Hong Precision Co., Ltd.Carrying structure of semiconductorUS8344263 *Jul 20, 2006Jan 1, 2013Osram Opto Semiconductors GmbhHousing for an optoelectronic component emitting electromagnetic radiation, component emitting electromagnetic radiation, and method for the production of a housing or a componentUS8723211Feb 26, 2008May 13, 2014Osram Opto Semiconductors GmbhOptoelectronic device with housing bodyDE102007021904A1 *May 10, 2007Sep 4, 2008Osram Opto Semiconductors GmbhHousing body for opto-electronic component, has main surface with surface area and another surface area, and both surface areas are adjoined together by outer edgeWO2005050747A1 *Nov 16, 2004Jun 2, 2005Jean-Michel MorelleDevice for cooling an electrical component and production method thereof* Cited by examinerClassifications U.S. Classification438/26, 257/E31.131, 438/64, 257/E31.118, 438/678, 438/614, 257/99, 257/772, 257/81International ClassificationH01L31/02, H01L31/0203, H01L31/024, H01L33/64, H01L33/48Cooperative ClassificationH01L2924/1815, H01L2924/12041, H01L2924/15313, H01L2224/48465, H01L24/97, H01L2224/48091, H01L31/024, H01L31/0203, H01L33/642, H01L33/486European ClassificationH01L31/0203, H01L33/64C, H01L31/024, H01L33/48C2Legal EventsDateCodeEventDescriptionJun 4, 2013ASAssignmentEffective date: 20130523Owner name: OSRAM GMBH, GERMANYFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SIEMENS AKTIENGESELLSCHAFT;REEL/FRAME:030540/0649Sep 18, 2012ASAssignmentFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SIEMENS AKTIENGESELLSCHAFT;REEL/FRAME:028976/0522Owner name: OSRAM AG, GERMANYEffective date: 20111114Apr 8, 2011FPAYFee paymentYear of fee payment: 8Apr 12, 2007FPAYFee paymentYear of fee payment: 4Jul 20, 2004CCCertificate of correctionFeb 17, 2004CCCertificate of correctionSep 8, 2003ASAssignmentOwner name: SIEMENS AKTIENGESELLSCHAFT, GERMANYFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BRUNNER, HERBERT;HURT, HANS;REEL/FRAME:014459/0761;SIGNING DATES FROM 19981030 TO 19981103Owner name: SIEMENS AKTIENGESELLSCHAFT POSTFACH 22 16 34MUNCHEFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BRUNNER, HERBERT /AR;REEL/FRAME:014459/0761;SIGNING DATES FROM 19981030 TO 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