Source: http://www.google.com/patents/US6459130?dq=6,998,619
Timestamp: 2014-03-13 10:54:13
Document Index: 170895111

Matched Legal Cases: ['art. 2', 'art. 10', 'art. 18', 'art 2', 'art 10', 'art 2', 'art 2', 'art 10', 'art 2', 'art 2', 'art 10', 'art 9', 'art 9', 'art 2', 'art 10', 'art 10', 'art 2', 'art 10', 'art 9', 'art 2', 'art 10', 'art 9', 'art 9', 'art 2', 'art 10', 'art 2', 'art 10', 'art 9', 'art 2', 'art 2', 'art 2', 'art 10']

Patent US6459130 - Optoelectronic semiconductor component - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA radiation-emitting and/or radiation-receiving semiconductor component in which a radiation-emitting and/or radiation-receiving semiconductor chip is secured on a chip carrier part of a lead frame. The chip carrier part forms a trough in the region in which the semiconductor chip is secured. Wherein...http://www.google.com/patents/US6459130?utm_source=gb-gplus-sharePatent US6459130 - Optoelectronic semiconductor componentAdvanced Patent SearchPublication numberUS6459130 B1Publication typeGrantApplication numberUS 09/043,840PCT numberPCT/DE1996/001730Publication dateOct 1, 2002Filing dateSep 13, 1996Priority dateSep 29, 1995Fee statusPaidAlso published asDE19549818B4, DE59609374D1, EP0852816A2, EP0852816B1, EP1199753A2, EP1199753A3, US6927469, US6975011, US7199454, US20030155624, US20040188790, US20050116238, WO1997012386A2, WO1997012386A3Publication number043840, 09043840, PCT/1996/1730, PCT/DE/1996/001730, PCT/DE/1996/01730, PCT/DE/96/001730, PCT/DE/96/01730, PCT/DE1996/001730, PCT/DE1996/01730, PCT/DE1996001730, PCT/DE199601730, PCT/DE96/001730, PCT/DE96/01730, PCT/DE96001730, PCT/DE9601730, US 6459130 B1, US 6459130B1, US-B1-6459130, US6459130 B1, US6459130B1InventorsKarlheinz Arndt, Herbert Brunner, Franz Schellhorn, G�nter WaitlOriginal AssigneeSiemens AktiengesellschaftExport CitationBiBTeX, EndNote, RefManPatent Citations (23), Non-Patent Citations (6), Referenced by (58), Classifications (45), Legal Events (8) External Links: USPTO, USPTO Assignment, EspacenetOptoelectronic semiconductor componentUS 6459130 B1Abstract A radiation-emitting and/or radiation-receiving semiconductor component in which a radiation-emitting and/or radiation-receiving semiconductor chip is secured on a chip carrier part of a lead frame. The chip carrier part forms a trough in the region in which the semiconductor chip is secured. Wherein the inner 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.
I claim: 1. A semiconductor component which performs at least one of a radiation-emitting function and a radiation-receiving function, comprising:
a lead frame having a chip carrier part; a trough formed in the chip carrier part having a reflective inner surface; a semiconductor chip secured in the trough of the chip carrier part wherein radiation which is at least one of emitted and received by the semiconductor chip is reflected by the reflective inner surface of the trough; an encapsulation surrounding the semiconductor chip and at least a portion of the chip carrier part; at least two first external connections projecting from the encapsulation, said at least two first external connections being directly connected to the chip carrier part; a connection part on the lead frame positioned at a distance from the chip carrier part; and at least two second external connections projecting from the encapsulation, said at least two second external connections being directly connected to the connection part, said at least two second external connections not being connected to the chip carrier part. 2. A semiconductor component as claimed in claim 1, wherein the at least two first external connections are broader than the at least two second external connections.
3. A semiconductor component as claimed in claim 1, further comprising:
a reflection-enhancing material coated over at least a portion of the reflective inner surface of the trough. 4. A semiconductor component as claimed in claim 1, wherein the encapsulation is formed completely of a radiation-permeable material.
5. A semiconductor component as claimed in claim 1, wherein the encapsulation further comprises:
a radiation-impermeable base body; a recess formed in the base body; and a radiation-permeable window positioned over the recess wherein the trough of the chip carrier part is positioned within the recess. 6. A semiconductor component as claimed in claim 5, wherein an upper edge of the trough is positioned below an upper edge of the recess so as to expose an uncovered reflective inner surface of the recess which reflects radiation emitted by the semiconductor chip.
7. A semiconductor component as claimed in claim 5, further comprising:
a reflection-enhancing material coated over at least a portion of the reflective inner surface of the recess. 8. A semiconductor component which performs at least one of a radiation-emitting function and a radiation-receiving function, comprising:
a lead frame having a chip carrier part; a trough body formed in the chip carrier part having a trough with a reflective inner surface; a semiconductor chip secured in the trough of the chip carrier part wherein radiation which is at least one of emitted and received by the semiconductor chip is reflected by the reflective inner surface of the trough; and an encapsulation surrounding the semiconductor chip and at least a portion of the chip carrier part wherein a portion of the trough body projects from the encapsulation, said portion of the trough body being utilized for at least one of an electrical connection and a thermal connection. 9. A semiconductor component as claimed in claim 8, further comprising:
a connection part on the lead frame positioned at a distance from the chip carrier part; and at least two external connections projecting from the encapsulation, said at least two external connections being directly connected to the connection part, said at least two external connections not being connected to the chip carrier part. 10. A semiconductor component as claimed in claim 7, further comprising:
at least two further external connections projecting from the encapsulation, said at least two further external connections being directly connected to the chip carrier part, wherein the at least two further external connections are broader than the at least two external connections. 11. A semiconductor component as claimed in claim 8, further comprising:
a reflection-enhancing material coated over at least a portion of the reflective inner surface of the trough. 12. A semiconductor component as claimed in claim 8, wherein the encapsulation is formed completely of a radiation-permeable material.
13. A semiconductor component as claimed in claim 8, wherein the encapsulation further comprises:
a radiation-impermeable base body; a recess formed in the base body; and a radiation-permeable window positioned over the recess wherein the trough of the chip carrier part is positioned within the recess. 14. A semiconductor component as claimed in claim 13, wherein an upper edge of the trough is positioned below an upper edge of the recess so as to expose an uncovered reflective inner surface of the recess which reflects radiation emitted by the semiconductor chip.
15. A semiconductor component as claimed in claim 13, further comprising:
a reflection-enhancing material coated over at least a portion of the reflective inner surface of the recess. 16. A semiconductor component which performs at least one of a radiation-emitting function and a radiation-receiving function, comprising:
a semiconductor chip which performs at least one of a radiation-emitting function and a radiation-receiving function; a lead frame; a chip carrier part; a connection part positioned at a distance from the chip carrier part; a trough body formed in the chip carrier part having a trough with a reflective inner surface; and an encapsulation surrounding the semiconductor chip and at least a portion of the chip carrier part wherein a portion of the trough body projects from the encapsulation; said semiconductor chip being secured in said trough and electrically connected to said connection part; and said portion of the trough body being utilized for at least one of an electrical connection and a thermal connection. 17. A semiconductor component as claimed in claim 16, further comprising:
at least two external connections projecting from the encapsulation, said at least two external connections being directly connected to the connection part, said at least two external connections not being connected to the chip carrier part. 18. A semiconductor component as claimed in claim 17, further comprising:
at least two further external connections projecting from the encapsulation, said at least two further external connections being directly connected to the chip carrier part, wherein the at least two further external connections are broader than the at least two external connections. 19. A semiconductor component as claimed in claim 16, further comprising:
a reflection-enhancing material coated over at least a portion of the reflective inner surface of the trough. 20. A semiconductor component as claimed in claim 16, wherein the encapsulation is formed completely of a radiation-permeable material.
21. A semiconductor component as claimed in claim 16, wherein the encapsulation further comprises:
a radiation-impermeable base body; a recess formed in the base body; and a radiation-permeable window positioned over the recess wherein the trough of the chip carrier part is positioned within the recess. 22. A semiconductor component as claimed in claim 21, wherein an upper edge of the trough is positioned below an upper edge of the recess so as to expose an uncovered reflective inner surface of the recess which reflects radiation emitted by the semiconductor chip.
23. A semiconductor component as claimed in claim 21, further comprising:
a reflection-enhancing material coated over at least a portion of the reflective inner surface of the recess.
The present invention relates to a radiation-emitting and/or radiation-receiving semiconductor component in which a radiation-emitting and/or radiation-receiving semiconductor chip, is secured on a chip carrier part of a lead frame wherein the semiconductor chip and at least a partial region of the chip carrier part are surrounded by an encapsulation.
Such a semiconductor component is disclosed, for example, in European Patent Application EP 400 176. The latter describes a so-called top LED, in which a semiconductor chip is secured on a planar chip carrier part of a lead frame. The lead frame is composed of the chip carrier part and a connection part, arranged separately from the latter, with a respective external connection. The chip carrier part includes the semiconductor chip. The connection part and partial regions of the external connections are surrounded by a encapsulation which comprises a radiation-impermeable base body having a recess and a radiation-permeable window part which fills up this recess. This chip carrier part and the connection part are surrounded by the base body, or embedded in the latter, in such a way that partial regions of the upper sides of the chip carrier part and of the connection part are flush with the remaining bottom surface of the recess. Except for its underside, by which it rests on the chip carrier part, the semiconductor chip is completely surrounded by the radiation-permable window part. The recess, which is completely filled up by the radiation-permeable window part, is fashioned in such a way that it forms a reflector for the radiation emitted by the semiconductor component.
SUMMARY OF THE INVENTION In an embodiment of the present invention, the chip carrier part forms a trough in the region in which the semiconductor chip is secured. The inner surface of the trough is designed in such a way that it forms a reflector for the radiation which is emitted and/or received by the semiconductor chip. The chip carrier part has at least two external electrical connections which project from the encapsulation at various points thereof.
In an embodiment the chip carrier part forms a trough in the region in which the semiconductor chip is secured. The inner surface of the trough is designed in such a way that it forms a reflector for the radiation which is emitted and/or received by the semiconductor chip. The trough of the chip carrier part projects at least partially from the encapsulation in such a way that the chip carrier part can be electrically and/or thermally connected in the region of the trough.
In an embodiment, the lead frame has the chip carrier part and a connection part, arranged at a distance from the chip carrier part, with two external connections which project from the encapsulation at opposite sides.
DESCRIPTION OF THE DRAWINGS FIG. 1a shows a plan view of an embodiment of a semiconductor component in accordance with the present invention.
FIG. 1b shows a cross-sectional view of the semiconductor component shown in FIG. 1a taken along the line A�A.
FIG. 1c shows a cross-sectional view of the semiconductor component shown in FIG. 1a taken along the line B�B.
FIG. 2a shows a plan view of another embodiment of the semiconductor component of the present invention.
FIG. 2b shows a cross-sectional view of the semiconductor component shown in FIG. 2a taken along the line C�C.
FIG. 3 shows a sectional view through another embodiment of the semiconductor component in accordance with the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The semiconductor component of FIGS. 1a to 1 c is a so-called top LED which is constructed as a surface-mounted device. It is composed of a metallic lead frame, comprising a chip carrier part 2, a connection part 10 two external connections 11, 12, a radiation-emitting semiconductor chip 1 secured on the chip carrier part 2, and a parallelepipedal encapsulation 3. The semiconductor chip 1 has a respective contact metallization layer 16, 17 on its top side and on its underside, respectively. The contact metallization layer 17 on the underside is electrically conductively connected to the chip carrier part 2, for example by means of a metallic solder or an electrically conductive adhesive, and the contact metallization layer 16 on the top side is electrically conductively connected to the connection part 10 by means of a bonding wire 20, which is composed, for example, of gold or another suitable metallic material. A trough 4 is formed, for example, by means of embossing, in that region of the chip carrier part 2 in which the semiconductor chip 1 is secured, the inner surface 5 of the trough has the approximate shape of an upside-down truncated cone and forms a reflector for the radiation emitted by the semiconductor chip 1. The external connections 11, 12 of the chip carrier part 2 and of the connection part 10 each project from this encapsulation 3 on opposite sides and are bent outside the encapsulation 3, downwards and then inwards towards the centre of the encapsulation 3. However, they can also have any other desired form.
The encapsulation 3 is produced in two parts from a radiation-impermeable base body 7 having a recess 8 and a radiation-permeable window part 9 which fills up this recess 8. The base body 7 and the window part 9 are composed, for example, of a filled synthetic resin or of a thermoplastic and, respectively, of a transparent synthetic resin or polycarbonate. Suitable fillers for synthetic resin are, for example, metal powders, metal oxides, metal carbonates or metal silicates. The chip carrier part 2 and the connection part 10 are surrounded by the radiation-impermeable base body 7, or embedded in the latter, in such a way that a partial region of the connection part 10 and at least that partial region of the chip carrier part 2 in which the trough 4 is situated rest on the bottom surface 19 of the recess 8. The recess 8 has a larger depth than the trough 4, with the result being the trough 4 is arranged completely within the recess 8 and the inner surface 13 of the said recess projects upwards beyond the trough 4.
In a preferred embodiment, the inner surface of the trough 4 and possibly also that part of the top side of the connection part 10 which adjoins the window part 9, are polished or coated with a reflection-enhancing material for the purpose of improving the reflection. A suitable reflection-enhancing material is, for example, a lustrous lacquer or aluminum, which is vapour-deposited, sputtered on or applied by means of another suitable method. Equally, those regions of the inner surface 13 which are not covered by the chip carrier part 2 and connection part 10 can also be provided with a reflection-enhancing layer. As a result, these regions, too, reflect the radiation, emitted by the semiconductor chip 1 in the intended main radiation direction 6. A lustrous lacquer or aluminum is once again suitable for this purpose and may be applied by the methods mentioned above.
It would also be conceivable for the recess 8 not to be completely filled up by the window part 9, but instead for only the semiconductor chip 1 and the trough 4 or any other desired partial region of the recess 8 to be surrounded or covered by the window part. Equally, the window part 9 can be produced in such a way that it projects beyond the upper edge of the recess 8.
In order to improve the heat dissipation from the semiconductor chip 1, it is possible, as shown in FIGS. 2a and 2 b, for the external connections 11 of the chip carrier part 2 to be broader than the external connections 12 of the connection part 10. Though not shown, such may also be possible with respect to the embodiments shown in FIGS. 1a-1 c. Equally, if necessary or possible, just one external connection 11 or a plurality (>2) of external connections 11 can be routed out of the encapsulation from the chip carrier part 2. The same applies to the connection part 10.
In a method for producing the inventive semiconductor component according to the first exemplary embodiment, it is possible, if the base body 7 is composed of a thermoplastic or another temperature-resistant material, for the lead frame to be encapsulated with the base body material, and for the semiconductor chip and the bonding, wire to be secured. Further, recess 8 may be filled with the material of the window part 9.
The second exemplary embodiment shown in FIGS. 2a and 2 b differs from the first exemplary embodiment only by the fact that the chip carrier part 2 is embedded in the base body 7 in such a way that the bottom wall 18 of the trough 4 projects from the base body on the underside thereof. As a result, it is possible to make direct external contact with the chip carrier part 2, for example, by bonding or soldering it directly to a printed circuit board. Furthermore, in this exemplary embodiment the external connections 11 of the chip carrier part 2 have a greater width than the external connections 12 of the connection part 10. These measures, individually or in combination, ensure improved heat dissipation from the semiconductor chip 1.
The third exemplary embodiment according to FIG. 3 differs from the aforementioned first exemplary embodiment by the fact that the encapsulation 3 is, produced completely from a radiation-permeable material for example, a transparent synthetic resin. In this case, too, all of the refinements cited in connection with the first exemplary embodiment are conceivable.
The fourth exemplary embodiment has all of the features of the second exemplary embodiment except for that the encapsulation is produced completely from a transparent material.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS3820237Jun 26, 1972Jun 28, 1974Northern Electric CoProcess for packaging light emitting devicesUS3914786Apr 19, 1974Oct 21, 1975Hewlett Packard CoIn-line reflective lead-pair for light-emitting diodesUS4255688Dec 13, 1978Mar 10, 1981Tokyo Shibaura Denki Kabushiki KaishaLight emitter mounted on reflector formed on end of leadUS4611884 *Nov 24, 1982Sep 16, 1986Magnetic Controls CompanyBi-directional optical fiber couplerUS4649415 *Jan 15, 1985Mar 10, 1987National Semiconductor CorporationSemiconductor package with tape mounted dieUS4995695 *Aug 17, 1989Feb 26, 1991At&T Bell LaboratoriesOptical assembly comprising optical fiber coupling meansUS5158091 *Nov 30, 1990Oct 27, 1992Ivac CorporationTonometry system for determining blood pressureUS5298768Dec 30, 1992Mar 29, 1994Sharp Kabushiki KaishaLeadless chip-type light emitting elementUS5545893 *Dec 23, 1994Aug 13, 1996Motorola, Inc.Optocoupler package and method for makingUS5727009 *Mar 3, 1997Mar 10, 1998Sanyo Electric Co., Ltd.Semiconductor laser apparatus and optical pickup apparatus using the sameUS5760885 *Dec 7, 1995Jun 2, 1998Seiko Epson CorporationLight-sensing deviceUS6055102 *Apr 7, 1997Apr 25, 2000Hewlett-Packard CompanyOptical isolator having surface mountable open coreUS6226082 *Jun 25, 1998May 1, 2001Amira MedicalMethod and apparatus for the quantitative analysis of a liquid sample with surface enhanced spectroscopyUS6236477 *Jan 12, 2000May 22, 2001Sharp Kabushiki KaishaOptical transmission and receiving moduleDE3129996A1Jul 29, 1981Feb 17, 1983Siemens AgOptical couplerDE3148843A1Dec 10, 1981Jun 23, 1983Licentia GmbhMultiple light-emitting diode arrayDE4232637A1Sep 29, 1992Mar 31, 1994Siemens AgLight-emitting diode providing visible or IR light - with rear reflector behind semiconductor chip with lower elasticity modulus than chip carrier materialDE4232644A1Sep 29, 1992Mar 31, 1994Siemens AgOpto-electronic semiconductor element for LED, photodiode etc. - is enclosed in plastics, with semiconductor chip, associated head conductive strips, and centring element between themEP0400176A1May 31, 1989Dec 5, 1990Siemens AktiengesellschaftSurface-mountable optical elementEP0521312A1Jun 5, 1992Jan 7, 1993Rohm Co., Ltd.Process for making light emitting diodesEP0849784A2 *Dec 18, 1997Jun 24, 1998Texas Instruments IncorporatedA system for connecting a semiconductor device to a leadframe and a bonding support mechanism for a leadframeJPH1070511A * Title not availableJPS60261181A Title not available* Cited by examinerNon-Patent CitationsReference1Opto-Semiconductors-LEDs and Displays.2Opto-Semiconductors�LEDs and Displays.3Panasonic Human Electronics pp. 1-17.4Siemens Components 28 (1990) p. 254.5TEMIC Telefunken Semiconductors-Component Construction-p. 30.6TEMIC Telefunken Semiconductors�Component Construction�p. 30.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS6624491Dec 29, 2000Sep 23, 2003Osram Opto Semiconductors Gmbh & Co.Diode housingUS6641287 *Apr 9, 2002Nov 4, 2003Toyoda Gosei Co., Ltd.Reflective type light-emitting diodeUS6683325 *Aug 14, 2002Jan 27, 2004Patent-Treuhand-Gesellschaft-f�r Elektrische Gl�hlampen mbHThermal expansion compensated opto-electronic semiconductor element, particularly ultraviolet (UV) light emitting diode, and method of its manufactureUS6700137 *Jul 22, 2002Mar 2, 2004Citizen Electronic Co., Ltd.Light emitting diode deviceUS6720730Jan 22, 2002Apr 13, 2004Unisplay S.A.High power led lampUS6806583 *Jun 25, 2001Oct 19, 2004Agilent Technologies, Inc.Light sourceUS6844570 *Apr 1, 2002Jan 18, 2005Nihon Kessho Kogaku Co., Ltd.Component of a radiation detector comprising a substrate with positioning structure for a photoelectric element arrayUS6858879Jul 9, 2003Feb 22, 2005Osram Opto Semiconductors GmbhDiode housingUS6858880 *Nov 19, 2002Feb 22, 2005Citizen Electronics Co., Ltd.Light emitting diode deviceUS6864554 *Jan 6, 2003Mar 8, 2005Highlink Technology CorporationOptoelectronic device with reflective surfaceUS6900511Jun 27, 2003May 31, 2005Osram Opto Semiconductors GmbhOptoelectronic component and method for producing itUS6949771 *Apr 23, 2002Sep 27, 2005Agilent Technologies, Inc.Light sourceUS6995402 *Oct 3, 2003Feb 7, 2006Lumileds Lighting, U.S., LlcIntegrated reflector cup for a light emitting device mountUS7005311Nov 26, 2003Feb 28, 2006Osram GmbhTwo-pole SMT miniature housing for semiconductor components and method for the manufacture thereofUS7071523 *Jul 27, 2004Jul 4, 2006Rohm Co., Ltd.Encapsulated light receiving and processing semiconductor module with enhanced shielding and grounding propertiesUS7102212Aug 30, 2005Sep 5, 2006Osram GmbhTwo-pole SMT miniature housing for semiconductor components and method for the manufacture thereofUS7138301Feb 2, 2006Nov 21, 2006Osram GmbhDiode housingUS7199454 *Dec 2, 2004Apr 3, 2007Osram GmbhOptoelectronic semiconductor componentUS7204609 *Feb 27, 2004Apr 17, 2007Noritsu Koki Co., Ltd.Light-emitting diode light source unitUS7242538 *Oct 13, 2004Jul 10, 2007Matsushita Electric Industrial Co., Ltd.Optical deviceUS7247940Mar 1, 2004Jul 24, 2007Osram Opto Semiconductor GmbhOptoelectronic device with patterned-metallized package body, method for producing such a device and method for the patterned metallization of a plastic-containing bodyUS7282785Sep 14, 2004Oct 16, 2007Stanley Electric Co., Ltd.Surface mount type semiconductor device and lead frame structure thereofUS7288831Aug 8, 2006Oct 30, 2007Osram GmbhTwo-pole SMT miniature housing for semiconductor components and method for the manufacture thereofUS7368329Oct 23, 2006May 6, 2008Osram GmbhDiode housingUS7429757 *Jun 10, 2003Sep 30, 2008Sanken Electric Co., Ltd.Semiconductor light emitting device capable of increasing its brightnessUS7429758May 31, 2005Sep 30, 2008Osram Opto Semiconductor GmbhOptoelectronic component and method for producing itUS7511311 *Aug 1, 2003Mar 31, 2009Nichia CorporationSemiconductor light-emitting device, method for manufacturing the same, and light-emitting apparatus including the sameUS7514279Dec 2, 2004Apr 7, 2009Osram Opto Semiconductors GmbhOptoelectronic component and method for producing itUS7524087 *Nov 16, 2007Apr 28, 2009Avago Technologies Ecbu Ip (Singapore) Pte. Ltd.Optical deviceUS7696590Mar 26, 2008Apr 13, 2010Osram GmbhDiode housingUS7718451Jul 23, 2007May 18, 2010Osram Opto Semiconductor GmbhMethod for producing an optoelectronic device with patterned-metallized package body and method for the patterned metalization of a plastic-containing bodyUS7795633Sep 30, 2008Sep 14, 2010Osram Opto Semiconductors GmbhOptoelectronic componentUS7851812Feb 23, 2007Dec 14, 2010Osram Opto Semiconductors GmbhHoused optoelectronic componentUS7947998Jun 27, 2006May 24, 2011Unisplay S.A.LED lampsUS7948046Sep 10, 2010May 24, 2011Osram Opto Semiconductor GmbhOptoelectronic componentUS8035118Jun 10, 2008Oct 11, 2011Nichia CorporationSemiconductor light-emitting device, method for manufacturing the same, and light-emitting apparatus including the sameUS8044412Oct 23, 2008Oct 25, 2011Taiwan Semiconductor Manufacturing Company, LtdPackage for a light emitting elementUS8097937Oct 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 semiconductorUS8188498 *Nov 20, 2009May 29, 2012Lg Innotek Co., Ltd.Light emitting device packageUS8314441Apr 11, 2011Nov 20, 2012Osram Opto Semiconductors GmbhOptoelectronic componentUS8324638May 24, 2011Dec 4, 2012Lg Innotek Co., Ltd.Light emitting device packageUS8330179Oct 11, 2011Dec 11, 2012Nichia CorporationSemiconductor light-emitting device, method for manufacturing the same, and light-emitting apparatus including the sameUS8334587 *Apr 6, 2007Dec 18, 2012Kabushiki Kaisha ToshibaSemiconductor light emitting device with first and second leadsUS8373180 *Sep 21, 2007Feb 12, 2013Seoul Semiconductor Co., Ltd.Light emitting diode packageUS8399903Apr 25, 2011Mar 19, 2013Epistar CorporationLED lampsUS8436385May 24, 2011May 7, 2013Lg Innotek Co., Ltd.Light emitting device packageUS8552460Sep 8, 2011Oct 8, 2013Tsmc Solid State Lighting Ltd.Package for a light emitting elementUS8587020Dec 20, 2011Nov 19, 2013Epistar CorporationLED lampsUS8592856Sep 14, 2012Nov 26, 2013Epistar CorporationLED lampsUS8604508Aug 8, 2012Dec 10, 2013Epistar CorporationLED lampsUS20090129073 *Nov 16, 2007May 21, 2009Avago Technologies Ecbu Ip (Singapore) Pte. Ltd.Illumination Assembly Having Multiple EmittersUS20100133560 *Nov 20, 2009Jun 3, 2010Wan Ho KimLight emitting device packageCN100479213CJan 31, 2007Apr 15, 2009株式会社元素电子Light emitting device and method of manufacturing the sameDE102007035684A1 *Jul 30, 2007Dec 11, 2008Seoul Semiconductor Co., Ltd.LED-Geh�useWO2005093853A1Mar 9, 2005Oct 6, 2005Osram Opto Semiconductors GmbhOptoelectronic component comprising a multi-part housing bodyWO2005098971A1 *Apr 8, 2005Oct 20, 2005Yu-Chao WuA light emitting diode device, a light emitting diode dispersing heat device and an illuminating apparatus in which including aforesaid deviceWO2010017790A1 *Jun 24, 2009Feb 18, 2010Osram Opto Semiconductors GmbhSurface-mountable optoelectronic semiconductor component* Cited by examinerClassifications U.S. Classification257/432, 257/435, 257/81, 257/433, 257/98, 257/787, 257/83, 257/E31.112, 257/82, 257/100, 257/436, 257/428, 257/437, 257/84, 257/80, 257/79, 257/E31.128, 257/E31.118, 257/99, 257/E33.072International ClassificationH01L31/0232, H01L31/0203, H01L31/02, H01L31/024, H01L33/48, H01L33/64, H01L33/60Cooperative ClassificationH01L2224/48465, H01L2224/73265, H01L31/024, H01L33/647, H01L33/642, H01L33/60, H01L31/0232, H01L33/486, H01L31/0203, H01L31/02005, H01L2224/48247European ClassificationH01L31/0203, H01L31/0232, H01L33/64C, H01L31/02E2, H01L33/48C2, H01L33/60, H01L31/024Legal EventsDateCodeEventDescriptionAug 25, 2011ASAssignmentOwner name: OSRAM AG, GERMANYFree format text: CHANGE OF NAME;ASSIGNOR:OSRAM GMBH;REEL/FRAME:026807/0685Effective date: 20110705Mar 9, 2010FPAYFee paymentYear of fee payment: 8Apr 22, 2008ASAssignmentOwner name: OSRAM GMBH, GERMANYFree format text: TO CORRECT THE ADDRESS OF THE ASSIGNEE, OSRAM GMBH;ASSIGNOR:OSRAM OPTO SEMICONDUCTORS GMBH;REEL/FRAME:020837/0132Effective date: 20041209Apr 16, 2008ASAssignmentOwner name: OSRAM GMBH, GERMANYFree format text: CORRECT THE ADDRESS OF THE ASSIGNEE OSRAM GMBH;ASSIGNOR:OSRAM OPTO SEMICONDUCTORS GMBH;REEL/FRAME:020808/0875Effective date: 20041209Mar 17, 2006FPAYFee paymentYear of fee payment: 4Jan 31, 2005ASAssignmentOwner name: OSRAM GMBH, GERMANYFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:OSRAM OPTO SEMICONDUCTORS GMBH;REEL/FRAME:015629/0627Effective date: 20041209Owner name: OSRAM GMBH WERNERWERKSTRASSE 293049 REGENSBURG, (1Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:OSRAM OPTO SEMICONDUCTORS GMBH /AR;REEL/FRAME:015629/0627Feb 4, 2004ASAssignmentOwner name: OSRAM OPTO SEMICONDUCTORS GMBH, GERMANYFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SIEMENS AKTIENGESELLSCHAFT;REEL/FRAME:014301/0504Effective date: 20040130Owner name: OSRAM OPTO SEMICONDUCTORS GMBH WERNERWERKSTRASSE 2Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SIEMENS AKTIENGESELLSCHAFT /AR;REEL/FRAME:014301/0504Nov 18, 1999ASAssignmentOwner name: SIEMENS AKTIENGESELLSCHAFT, GERMANYFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ARNDT, KARLHEINZ;BRUNNER, HERBERT;SCHELLHORN, FRANZ;AND OTHERS;REEL/FRAME:010409/0208;SIGNING DATES FROM 19981123 TO 19981221Owner name: SIEMENS AKTIENGESELLSCHAFT WITTELSBACHERPLATZ 2 D-RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google