With Means For Cooling Or Heating (epo) Patents (Class 257/E33.075)
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Patent number: 7928564Abstract: A method for fabricating a multichip module package includes providing a first heat sink positioned for releasing heat from the package and providing a second heat sink positioned proximate the first heat sink. The heat sinks are thermally coupled and electrically isolated to and from one another. A first semiconductor device is attached to the first heat sink in thermal and electrical communication therewith and electrically insulated from the second heat sink. A second semiconductor device is attached to the second heat sink in thermal and electrical communication therewith and electrically insulated from the first heat sink.Type: GrantFiled: September 24, 2008Date of Patent: April 19, 2011Assignee: Stats Chippac Ltd.Inventors: Il Kwon Shim, Dario S. Filoteo, Jr., Tsz Yin Ho, Sebastian T. M. Soon
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Publication number: 20110084586Abstract: An LED recessed light with heat sink comprises heat sink base, an LED illumination module, a sleeve and a transparent board. The heat sink base has an upper surface, a bottom surface and a side wall connected the surface to the bottom. The LED illumination module is mounted on the bottom surface of heat sink base. The sleeve has first open end, which is formed with a fixed portion, and a second open end, the fixed portion of the sleeve is mounted at the side wall of the heat sink base, so as to the first open end of the sleeve is located on the bottom surface of the heat sink base. And the transparent board is located on the second open end of the sleeve to cover the second open end.Type: ApplicationFiled: February 11, 2010Publication date: April 14, 2011Inventors: You Chuen Lain, Yen Wei Pen, Meng Hsieh Chou
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Publication number: 20110084303Abstract: The present invention relates to the heat-radiation structure of a pin-type power Light Emitting Diode (LED). The heat-radiation structure includes an LED device, first and second lead frames, a mold unit, and a heat sink. The first lead frame is electrically connected to the LED device, and extended forward to the outside in order to supply power to the LED device. The second lead frame is provided to face the first lead frame, and extended forward to the outside. The mold unit includes the LED device, and molds the upper portions of the first and second lead frames out transparent material. The heat sink is provided at a bottom of the mold unit so that the lead frames penetrate therethrough, fixed into any of the two lead frames, and configured to receive heat from the lead frame which comes into contact therewith and to radiate the heat to the outside.Type: ApplicationFiled: January 30, 2009Publication date: April 14, 2011Inventors: Yeon Su Cho, Chang Won Lee, Kyung Min Cho
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Publication number: 20110084612Abstract: A hybrid chip-on-heatsink device comprises at least one LED die, at least one printed circuit board (PCB), and a thermally conductive substrate or heatsink. The LED die is physically and thermally coupled to the thermally conductive substrate. The PCB is physically coupled to the thermally conductive substrate. The LED die is electrically coupled to the PCB. The thermally conductive substrate acts as a spreader and as a heatsink, whereby heat is efficiently dissipated away from the LED die. The PCB may optionally contain other electrical components, and circuitry to create a “smart” LED package or light engine.Type: ApplicationFiled: February 17, 2010Publication date: April 14, 2011Applicant: GENERAL LED, INC., A DELAWARE CORPORATIONInventors: William R. Ratcliffe, Jianbiao Pan
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Patent number: 7919854Abstract: A semiconductor module with two cooling surfaces and method. One embodiment includes a first carrier with a first cooling surface and a second carrier with a second cooling surface. The first cooling surface is arranged in a first plane, the second cooling surface is arranged in a second plane, at an angle different from 0° relative to the first plane.Type: GrantFiled: August 15, 2008Date of Patent: April 5, 2011Assignee: Infineon Technologies AGInventor: Thilo Stolze
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Patent number: 7915620Abstract: Disclosed is a light-emitting device. The light-emitting device includes an EL layer and a heat dissipation layer. The EL layer includes a first semiconductor layer, a second semiconductor layer, and an active layer, the first semiconductor layer having a first conductivity type that is one of n type and p type, the second semiconductor layer having a second conductivity type that is opposite to the first conductivity type, the active layer being provided between the first semiconductor layer and the second semiconductor layer. The heat dissipation layer has the first conductivity type and is bonded to a side of the EL layer closer to the second semiconductor layer than the first semiconductor layer.Type: GrantFiled: February 11, 2009Date of Patent: March 29, 2011Assignee: Sony CorporationInventors: Yuichi Ishida, Kazuaki Yazawa, Norikazu Nakayama
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Patent number: 7911068Abstract: A component and a method for producing a component are disclosed. The component comprises an integrated circuit, a housing body, a wiring device overlapping the integrated circuit and the housing body, and one or more external contact devices in communication with the wiring device.Type: GrantFiled: July 13, 2006Date of Patent: March 22, 2011Assignee: Infineon Technologies AGInventors: Thorsten Meyer, Harry Hedler, Markus Brunnbauer
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Patent number: 7911044Abstract: The present invention discloses a structure of package comprising: a substrate with a die receiving through hole; a base attached on a lower surface of the substrate; a die disposed within the die receiving through hole and attached on the base; a dielectric layer formed on the die and the substrate; a re-distribution layer (RDL) formed on the dielectric layer and coupled to the die; a protection layer formed over the RDL; and pluralities of pads formed on the protection layer and coupled to the RDL. The RDL is made from an alloy comprising Ti/Cu/Au alloy or Ti/Cu/Ni/Au alloy.Type: GrantFiled: December 29, 2006Date of Patent: March 22, 2011Assignee: Advanced Chip Engineering Technology Inc.Inventors: Wen-Kun Yang, Chun-Hui Yu, Chihwei Lin
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Publication number: 20110062464Abstract: An LED arrangement (light emitting diode) has a plurality of adjacent radiating LEDs that are nearly identically aligned for forming an extended area light source. The LEDs are attached to a metallic multi-film support having sandwich-like insulating intermediate layers and having at least a step-like structure with at least one step. At least one LED chip is placed on each step on a metal film and the metal layer directly above is formed of a corresponding shortening or recess for mounting an LED.Type: ApplicationFiled: May 11, 2009Publication date: March 17, 2011Inventor: Detlef Gerhard
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Patent number: 7906793Abstract: A mounting substrate for a semiconductor light emitting device includes a solid metal block having first and second opposing metal faces. The first metal face includes an insulating layer and a conductive layer on the insulating layer. The conductive layer is patterned to provide first and second conductive traces that connect to a semiconductor light emitting device. The second metal face may include heat sink fins therein. A flexible film including an optical element, such as a lens, also may be provided, overlying the semiconductor light emitting device.Type: GrantFiled: June 15, 2009Date of Patent: March 15, 2011Assignee: Cree, Inc.Inventor: Gerald H. Negley
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Patent number: 7906857Abstract: A molded integrated circuit package is described. The molded integrated circuit package comprises a substrate having a plurality of contacts on a first surface; a die having a plurality of solder bumps on a first surface, the plurality of solder bumps being coupled to the plurality of contacts on the first surface of the substrate; an adhesive material positioned on a second surface of the die; a lid attached to the adhesive material; and an encapsulant positioned between the lid and the substrate. Methods of forming molded integrated circuit packages are also disclosed.Type: GrantFiled: March 13, 2008Date of Patent: March 15, 2011Assignee: Xilinx, Inc.Inventors: Lan H. Hoang, Raghunandan Chaware, Laurene Yip
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Publication number: 20110057217Abstract: An LED package structure for increasing heat-dissipating and light-emitting efficiency includes a substrate unit, an alloy unit, a light-emitting unit, a conductive unit and a package unit. The substrate unit has a substrate body, a first conductive pad, a second conductive pad and a chip-placing pad. The alloy unit has a Ni/Pd alloy formed on the chip-placing pad. The light-emitting unit has an LED chip positioned on the Ni/Pd alloy of the alloy unit by solidified solder ball or glue. The conductive unit has two conductive wires, and the LED chip is electrically connected to the first conductive pad and the second conductive pad by the two conductive wires, respectively. The package unit has a light-transmitting package gel body formed on the top surface of the substrate body in order to cover the light-emitting unit and the conductive unit.Type: ApplicationFiled: December 17, 2009Publication date: March 10, 2011Inventors: Hsin-Yuan Peng, Shen-Ta Yang, Chia-Tin Chung
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Publication number: 20110049558Abstract: A semiconductor chip assembly includes a semiconductor device, a heat spreader, a conductive trace and an adhesive. The heat spreader includes a thermal post and a base. The conductive trace includes a pad, a terminal and a signal post. The semiconductor device extends into a cavity in the thermal post, is electrically connected to the conductive trace and is thermally connected to the heat spreader. The thermal post extends upwardly from the base into a first opening in the adhesive, and the signal post extends upwardly from the terminal into a second opening in the adhesive. The conductive trace is located outside the cavity and provides signal routing between the pad and the terminal.Type: ApplicationFiled: July 10, 2010Publication date: March 3, 2011Inventors: Charles W.C. Lin, Chia-Chung Wang, Sangwhoo Lim
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Patent number: 7898076Abstract: Assemblies for dissipating heat from integrated circuits and circuit chips are disclosed. The assemblies include a low melt solder as a thermal interface material (TIM) for the transfer of heat from a chip to a heat sink (HS), wherein the low melt solder has a melting point below the maximum operating temperature of the chip. Methods for making the assemblies are also disclosed.Type: GrantFiled: April 30, 2007Date of Patent: March 1, 2011Assignee: International Business Machines CorporationInventors: Bruce Furman, Madhusudan K. Iyengar, Paul A. Lauro, Yves Martin, Roger R. Schmidt, Da-Yuan Shih, Theodore G. Van Kessel, Wei Zou
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Patent number: 7893444Abstract: An exemplary light emitting diode includes a substrate, a LED chip, a first heat conductor, and a second heat conductor. The substrate comprises a first surface and an opposite second surface. The LED chip is positioned on the first surface of the substrate and it has a first electrode and a second electrode. The first heat conductor is attached to the second surface of the substrate and electrically connected to the first electrode of the LED chip. The second heat conductor is extending through the first heat conductor and insulated from the second heat conductor, and electrically connected to the second electrode of the LED chip.Type: GrantFiled: December 3, 2008Date of Patent: February 22, 2011Assignee: Foxsemicon Integrated Technology, Inc.Inventors: Hung-Kuang Hsu, Chun-Wei Wang
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Publication number: 20110037094Abstract: A semiconductor chip assembly includes a semiconductor device, a heat spreader, a conductive trace and an adhesive. The heat spreader includes a bump, a base and a flange. The conductive trace includes a pad and a terminal. The semiconductor device extends into a cavity in the bump, is electrically connected to the conductive trace and is thermally connected to the bump. The bump extends from the base into an opening in the adhesive, the base extends vertically from the bump opposite the cavity and the flange extends laterally from the bump at the cavity entrance. The conductive trace is located outside the cavity and provides signal routing between the pad and the terminal.Type: ApplicationFiled: October 26, 2010Publication date: February 17, 2011Inventors: Charles W.C. Lin, Chia-Chung Wang
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Patent number: 7884385Abstract: A light emitting diode device includes a substrate, a light emitting diode chip, a plurality of wires, a plurality of lead frames, an insulating body, an encapsulant and a lens. The light emitting diode chip is electrically connected with a lead frame and the substrate. The substrate is electrically connected with another lead frame. Hence, the length of the wires can be decreased, and the reliability of the light emitting diode device can be improved.Type: GrantFiled: September 17, 2008Date of Patent: February 8, 2011Assignee: Everlight Electronics Co., Ltd.Inventor: Yi-Tsuo Wu
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Patent number: 7880183Abstract: Disclosed is a light emitting device having a plurality of light emitting cells. The light emitting device comprises a thermally conductive substrate, such as a SiC substrate, having a thermal conductivity higher than that of a sapphire substrate. The plurality of light emitting cells are connected in series on the thermally conductive substrate. Meanwhile, a semi-insulating buffer layer is interposed between the thermally conductive substrate and the light emitting cells. For example, the semi-insulating buffer layer may be formed of AlN or semi-insulating GaN. Since the thermally conductive substrate having a thermal conductivity higher than that of a sapphire substrate is employed, heat-dissipating performance can be enhanced as compared with a conventional sapphire substrate, thereby increasing the maximum light output of a light emitting device that is driven under a high voltage AC power source.Type: GrantFiled: May 5, 2010Date of Patent: February 1, 2011Assignee: Seoul Opto Device Co., Ltd.Inventors: Chung Hoon Lee, Hong San Kim, James S. Speck
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Publication number: 20110012157Abstract: A heat spreader for an LED can include a thermally conductive and optically transparent member. The bottom side of the heat spreader can be configured to attach to a light emitting side of the LED. The top and/or bottom surface of the heat spreader can have a phosphor layer formed thereon. The heat spreader can be configured to conduct heat from the LED to a package. The heat spreader can be configured to conduct heat from the phosphors to the package. By facilitating the removal of heat from the LED and phosphors, more current can be used to drive the LED. The use of more current facilitates the construction of a brighter LED, which can be used in applications such as flashlights, displays, and general illumination. By facilitating the removal of heat from the phosphors, desired colors can be better provided.Type: ApplicationFiled: September 29, 2010Publication date: January 20, 2011Applicant: BRIDGELUX, INC.Inventor: Wei Shi
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Patent number: 7868347Abstract: A new SMD (surface mount devices) package design for efficiently removing heat from LED Chip(s) is involved in this invention. Different from the regular SMD package, which electrical isolated materials like Alumina or AlN are used, the substrate material here is metal like Copper, Aluminum and so on. Also, different from regular design, which most time only has one LED chip inside, current design will at least have two or more LED chips (or chip groups) in one package. All chips are electrical connected via metal blocks, traces or wire-bond. This type of structure is generally fabricated via chemical etching and then filled with dielectric material inside to form a strong package. Because the thermal conductivity of the metal is much higher than the ceramics, the package thermal resistance is much lower than the ceramics based package. Also, the cost of the package is much lower than ceramics package. Moreover, emitting area in one package is much larger than the current arts.Type: GrantFiled: March 15, 2009Date of Patent: January 11, 2011Assignee: Sky Advanced LED Technologies IncInventor: Lijun Cui
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Patent number: 7868345Abstract: A light-emitting apparatus with improved dissipation efficiency of heat transmitted to a specific electrode of a light-emitting device is provided. A light-emitting device mounting substrate used for the light emitting apparatus include a base body (1) which mounts thereon a light-emitting device (3); a first electrically conductive path (L1) formed within the base body (1), one end thereof being electrically connected to a first electrode (3a) of the light-emitting device (3) and the other end thereof being led out to a surface of the base body (1); and a second electrically conductive path (L2) formed in the base body (1), one end thereof being electrically connected to a second electrode (3b) of the light-emitting device (3), and the other end thereof being formed on the surface of the base body (1). The first electrically conductive path (L1) is made smaller in thermal resistance than the second electrically conductive path (L2).Type: GrantFiled: October 27, 2005Date of Patent: January 11, 2011Assignee: Kyocera CorporationInventors: Yuki Mori, Fumiaki Sekine
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Publication number: 20110001162Abstract: To provide a light emitting diode package of which the height of protrusion of a thermal via is decreased without decreasing the flexural strength of an insulating substrate. A light emitting diode package comprising a light emitting diode element mounted on a substrate, wherein the substrate is obtained by firing a glass ceramic composition containing a powder of glass containing, as represented by mole percentage, from 57 to 65% of SiO2, from 13 to 18% of B2O3, from 9 to 23% of CaO, from 3 to 8% of Al2O3 and from 0.5 to 6% of at least one of K2O and Na2O in total, and a ceramic filler.Type: ApplicationFiled: September 14, 2010Publication date: January 6, 2011Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Katsuyoshi NAKAYAMA, Akihiro Hishinuma, Rui Yanagawa, Kazuyoshi Orihara, Yasuko Osaki, Kenji Imakita, Takashi Ootsuki, Hideaki Hayashi, Shinji Honda
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Patent number: 7864825Abstract: A laser diode array is formed on a heat sink having an insulating layer in which a plurality of grooves is formed through the ceramic layer and to or into the heat sink. A laser diode stack is soldered to the ceramic layer.Type: GrantFiled: July 26, 2007Date of Patent: January 4, 2011Assignee: Lasertel, Inc.Inventors: Prabhu Thiagarajan, Mark McElhinney, Jason Helmrich, Feliks Lapinski
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Patent number: 7863639Abstract: A light-emitting diode (LED) structure with an improved heat transfer path with a lower thermal resistance than conventional LED lamps is provided. For some embodiments, a surface-mountable light-emitting diode structure is provided having an active layer deposited on a metal substrate directly bonded to a metal plate that is substantially exposed for low thermal resistance by positioning it on the bottom of the light-emitting diode structure. This metal plate can then be soldered to a printed circuit board (PCB) that includes a heat sink. For some embodiments of the invention, the metal plate is thermally and electrically conductively connected through several heat conduction layers to a large heat sink that may be included in the structure.Type: GrantFiled: April 12, 2006Date of Patent: January 4, 2011Assignee: SemiLEDs Optoelectronics Co. Ltd.Inventor: Jui-Kang Yen
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Publication number: 20100328638Abstract: This invention provides a structurally-simple LED light source that is capable of preventing temperature variations among its multiple LED elements arranged densely on its LED-mounting substrate and also improving the heat release capabilities of the substrate by comprising an LED light source with: a plurality of LED elements each of which is formed by connecting an LED chip to electrodes formed on a ceramic substrate; an LED-mounting substrate on which to mount the plurality of LED elements, the LED-mounting substrate having through holes therein; and a heat sink plate for releasing heat from the LED-mounting substrate, wherein a thermally conductive resin is present between the LED-mounting substrate and the heat sink plate and wherein part of the thermally conductive resin protrudes from the through holes of the LED-mounting substrate and covers the top surface of the LED-mounting substrate on which the plurality of LED elements are mounted, so that the part of the thermally conductive resin is in contactType: ApplicationFiled: June 14, 2010Publication date: December 30, 2010Inventors: SUSUMU ISHIDA, Shohei Hata
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Publication number: 20100327310Abstract: A semiconductor chip assembly includes a semiconductor device, a heat spreader, a conductive trace and an adhesive. The heat spreader includes a post, a base and a flange. The conductive trace includes a pad and a terminal. The semiconductor device extends into a cavity in the flange, is electrically connected to the conductive trace and is thermally connected to the heat spreader. The post extends upwardly from the base into an opening in the adhesive, the flange extends upwardly from the post in the opening and extends laterally above the adhesive, the cavity extends into the opening and the base extends laterally from the post. The conductive trace is located outside the cavity and provides signal routing between the pad and the terminal.Type: ApplicationFiled: September 4, 2010Publication date: December 30, 2010Inventors: Charles W.C. Lin, Chia-Chung Wang, Sangwhoo Lim
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Patent number: 7855396Abstract: A light emitting diode (LED) package structure including a first substrate, one or more LED chips, a second substrate, and a thermoelectric cooling device is provided. The first substrate has a first surface and a corresponding second surface. The LED chip suitable for emitting a light is arranged on the first surface of the first substrate, and is electrically connected to the first substrate. The second substrate is below the first substrate, and has a third surface and a corresponding fourth surface. The third surface faces the second surface. The thermoelectric cooling device is arranged between the second surface of the first substrate and the third surface of the second substrate for conducting heat generated by the LED chip during operation.Type: GrantFiled: September 26, 2007Date of Patent: December 21, 2010Assignee: Industrial Technology Research InstituteInventors: Ming-Ji Dai, Chun-Kai Liu, Chih-Kuang Yu
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Patent number: 7855394Abstract: A light source includes a substrate, a light emitting diode on the substrate, and a phosphor layer over the light emitting diode. A plate is on the phosphor layer. An attachment member is coupled to the plate and is configured to conduct heat away from the plate.Type: GrantFiled: June 18, 2009Date of Patent: December 21, 2010Assignee: Bridgelux, Inc.Inventors: Jianhua Li, Rene Helbing, David Hum
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Publication number: 20100314630Abstract: Light emitting diode systems are disclosed. An optical display system that includes a light emitting diode (LED) and a cooling system is disclosed. The cooling system is configured so that, during use, the cooling system regulates a temperature of the light emitting diode.Type: ApplicationFiled: May 13, 2010Publication date: December 16, 2010Applicant: Luminus Devices, Inc.Inventors: Alexei A. Erchak, Elefterios Lidorikis, John W. Graff
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Publication number: 20100315834Abstract: A light emitting diode package may be provided that includes a light emitting diode chip and a heat sink. Heat generated from the light emitting diode chip may be radiated to the outside using the heat sink.Type: ApplicationFiled: March 19, 2010Publication date: December 16, 2010Applicant: LG Electronics Inc.Inventor: Bu Wan SEO
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Publication number: 20100314641Abstract: A lighting device can include at least one optoelectronic semiconductor chip, which emits electromagnetic radiation and generates heat in operation, and a reflector. The reflector is suitable for deflecting the electromagnetic radiation and dissipating the heat generated by the optoelectronic semiconductor chip by means of a reflecting surface.Type: ApplicationFiled: October 25, 2006Publication date: December 16, 2010Inventor: Hans-Joachim Schmidt
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Publication number: 20100314655Abstract: Apparatus may be provided including a high power light emitting diode (LED) unit, at least one printed circuit board, and an interfacing portion of a heat sink structure. The high power LED unit includes at least one LED die, at least one first lead and at least one second lead, and a heat sink interface. The at least one printed circuit board includes a conductive pattern configured to connect both the at least one first lead and the at least one second lead to a current source. The interfacing portion of the heat sink structure is that portion through which a majority of heat of the heat sink interface is transmitted. The interfacing portion is directly in touching contact with a majority of a heat transfer area of the heat sink interface.Type: ApplicationFiled: September 17, 2009Publication date: December 16, 2010Inventor: Joseph B. Thompson
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Publication number: 20100314637Abstract: A heat releasing semiconductor package, a method for manufacturing the same, and a display apparatus including the same. The heat releasing semiconductor package includes a film, an electrode pattern formed over the film, a semiconductor device mounted over the electrode pattern, and a first heat releasing layer formed over the semiconductor device including the electrode pattern, the first heat releasing layer including a first adhesive and a first heat releasing material.Type: ApplicationFiled: June 10, 2010Publication date: December 16, 2010Inventors: Sung-Jin Kim, Jun-Il Kim
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Patent number: 7851815Abstract: A light-emitting element, in particular a light-emitting diode, having at least one light-emitting chip crystal, in particular a semiconductor crystal, is described. At least free surfaces of the light-emitting chip crystal are covered with an inert material—liquid fluid—which is in direct contact with the light-emitting chip crystal.Type: GrantFiled: October 20, 2006Date of Patent: December 14, 2010Assignee: Noctron Holding S.A.Inventor: Georg Diamantidis
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Publication number: 20100308365Abstract: Disclosed is a compound semiconductor light emitting diode 101 including: a device structure portion 10 formed on a transparent base portion 25, the device structure portion 10 including a compound semiconductor layer having a first conductivity type, a light emitting layer 13 made of mixed crystals of aluminum phosphide gallium indium (having a composition of (AlXGa1-X)0.5In0.5P; 0?X<1), and a compound semiconductor layer having a conductivity type opposite to the first conductivity type; and a first ohmic electrode 1 formed on the device structure portion 10, wherein the second ohmic electrode 5 is formed on the opposite side to the transparent base portion 25, the metal coating film 6 is formed to cover the second ohmic electrode 5, and a metallic pedestal portion 7 covering the metal coating film 6 is formed to electrically connect to the second ohmic electrode 5.Type: ApplicationFiled: February 6, 2009Publication date: December 9, 2010Applicant: SHOWA DENKO K.K.Inventors: Kyosuke Masuya, Ryouichi Takeuchi
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Publication number: 20100308362Abstract: An optoelectronic component (10) comprising at least one metal body (15) and a layer sequence (17), which is applied on a base body (11) and which is embodied to emit an electromagnetic radiation and to which an insulation (12) is applied on at least one side area, wherein the at least one metal body (15) is applied to at least one region of the insulation (12) and is embodied in such a way that it is in thermally conductive contact with the base body (11).Type: ApplicationFiled: December 4, 2008Publication date: December 9, 2010Applicant: OSRAM OPTO SEMICONDUCTORS GMBHInventor: Siegfried Herrmann
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Publication number: 20100301359Abstract: An LED package structure with good heat dissipation, includes a metal plate having at least one recess, a heat-conducting insulating layer directly formed on a surface of the metal plate, a conductor layer directly formed on a surface of the heat-conducting insulating layer, at least one LED chip disposed on a bottom surface of the recess and electrically connected to the conductor layer, and at least one optical lens covering the recess. The heat-conducting insulating layer is oxides or nitrides of the metal plate.Type: ApplicationFiled: May 26, 2009Publication date: December 2, 2010Inventor: MING-HSIUNG LIU
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Publication number: 20100301356Abstract: A light source includes a mount having first and second opposite surfaces, a first light emitting element having one or more solid state light emitting cells arranged to emit light from the first surface of the mount, and a second light emitting element having one or more solid state light emitting cells arranged to emit light from the second surface of the mount. The first and second light emitting elements are arranged such that the light emitted from the light source produces a substantially spherical emission pattern.Type: ApplicationFiled: December 22, 2009Publication date: December 2, 2010Applicant: Bridgelux, Inc.Inventors: Keith SCOTT, Jason Posselt, Rene Helbing
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Publication number: 20100301376Abstract: In a side view type light emitting diode (LED) package, a lead frame portion and lead frame electrical contact portions are exposed outside a package body to serve as an additional heat dissipation path. The side view type LED package includes an LED chip, a package body having a side surface with an opening for receiving the LED chip, and lead frames for applying a current to the LED chip. The lead frames include inner leads electrically connected to the LED chip within the package body; electrical contact lower legs extending from the inner leads to a lower portion of the package body and exposed outside the package body in the vicinity of a lower surface of the package body perpendicular to the side surface; and a heat dissipation means extending, separately from the electrical contact lower legs, from at least one of the inner leads outside the package body.Type: ApplicationFiled: August 5, 2010Publication date: December 2, 2010Applicant: SEOUL SEMICONDUCTOR CO., LTD.Inventors: Nam Young KIM, Tae Kwang Kim, Kyoung Bo Han, Myung Hee Lee
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Patent number: 7843058Abstract: A package structure includes a substrate; a die over and flip bonded on the substrate; a heat sink over the die; and one or more spacer separating the heat sink from the substrate.Type: GrantFiled: October 30, 2007Date of Patent: November 30, 2010Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Pei-Haw Tsao, Liang-Chen Lin, Pao-Kang Niu
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Publication number: 20100297794Abstract: An efficient LED array. In an aspect, an LED apparatus includes a metal substrate having a reflective surface, and LED chips mounted directly to the reflective surface to allow for thermal dissipation, and wherein at least a portion of the LED chips are spaced apart from each other to allow light to reflect from a portion of the reflective surface that is located between the portion of the LED chips. In another aspect, a method includes configuring a metal substrate to have a reflective surface, and mounting a plurality of LED chips directly to the reflective surface of the metal substrate to allow for thermal dissipation, and wherein at least a portion of the LED chips are spaced apart from each other to allow light to reflect from a portion of the reflective surface that is located between the portion of the LED chips.Type: ApplicationFiled: August 2, 2010Publication date: November 25, 2010Applicant: Bridgelux, Inc.Inventor: Rene Peter Helbing
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Publication number: 20100295070Abstract: A light emitting device comprises a plurality of LED chips (“lateral” or “vertical” conducting) operable to generate light of a first wavelength range and a package for housing the chips. The package comprises: a thermally conducting substrate (copper) on which the LED chips are mounted and a cover having a plurality of through-holes in which each hole corresponds to a respective one of the LED chips. The holes are configured such that when the cover is mounted to the substrate each hole in conjunction with the substrate defines a recess in which a respective chip is housed. Each recess is at least partially filled with a mixture of at least one phosphor material and a transparent material. In a device with “lateral” conducting LED chips a PCB is mounted on the substrate and includes a plurality of through-holes which are configured such that each chip is directly mounted to the substrate. For a device with “vertical” conducting LED chips the LED chips are mounted on a diamond like carbon film.Type: ApplicationFiled: May 17, 2010Publication date: November 25, 2010Applicant: INTEMATIX CORPORATIONInventors: Hwa Su, Hsi-Yan Chou, Chih Wei Huang
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Patent number: 7838895Abstract: AN LED chip package body provides an LED chip with a pad-installed surface, a plurality of pads disposed on the pad-installed surface and a rear surface formed opposite the pad-installed surface. The LED chip package body further has a light-reflecting coating disposed on the pad-installed surface of the LED chip and a plurality of pad-exposed holes for exposure of the corresponding pads of the LED chip. The LED chip package body further comprises a light-transparent element disposed on the rear surface of the LED chip and a plurality of conductive projecting blocks. Each of the conductive projecting blocks is disposed on the corresponding pad of the LED chip.Type: GrantFiled: January 9, 2008Date of Patent: November 23, 2010Assignee: Suzhou Industrial Park Tony Lighting Technology Co., Ltd.Inventor: Yu-Nung Shen
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Patent number: 7839908Abstract: Provided is a device capable of oscillating a plurality of oscillation modes within a laser medium for obtaining a fundamental wave output which is easy in output scaling and high in luminance, thereby enabling a second harmonic conversion which is high in efficiency. The device includes: a laser medium (5) that is planar, has a waveguide structure in a thickness direction of a cross-section that is perpendicular to an optical axis (6), and has a cyclic lens effect in a direction perpendicular to the optical axis (6) and the thickness direction; a clad (4) that is bonded onto one surface of the laser medium (5); and heat sink (3) that is bonded onto one surface side of the laser medium (5) through the clad (4), and in the device, a laser oscillation includes a laser oscillation that oscillates in a waveguide mode of the laser medium (5), and a laser oscillation that oscillates in a plurality of resonator modes that are generated by a cyclic lens effect of the laser medium (5).Type: GrantFiled: March 30, 2005Date of Patent: November 23, 2010Assignee: Mitsubishi Electric CorporationInventors: Takayuki Yanagisawa, Yoshihito Hirano, Syuhei Yamamoto, Masao Imaki, Kiyohide Sakai, Yasuharu Koyata
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Patent number: 7834434Abstract: The present invention is achieved with the object of providing an illumination system formed of an LED light emitting body and a socket which can appropriately release heat from LED chips. This object is achieved in the following manner. A heat conducting layer 12 made of diamond is provided on a substrate 11, and on top of this, a conductive layer 13 having a predetermined pattern is formed. LED chips 16 are mounted in predetermined positions on the conductive layer 13. Terminals of the conductive layer 13 and electrodes of the LED chips 16 are connected to each other. A connector part 14 for the connection to a socket is provided in an end portion of the substrate 11. The heat conducting layer 12 on the connector part 14 makes thermal contact with the heat conducting layer provided on the inner surface of the opening of the socket. A current is supplied to respective LED chips 16 through the conductive layer 13 from the socket, and respective LED chips 16 emit light.Type: GrantFiled: May 5, 2008Date of Patent: November 16, 2010Assignee: Yanchers Inc.Inventors: Junichi Shimada, Yoichi Kawakami
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Publication number: 20100284198Abstract: A LED package (10) for use in a lamp as well as a method for manufacturing such kind of a LED package (10) are provided, wherein the LED package (10) comprises at least one LED (16), an optical element (18) for guiding light emitted by the LED (16), a cover (26) for covering at least partially electrical components (20, 22, 24) connectable to the LED (16) and at least one optical detectable reference mark (32; 36), wherein the optical element (18) comprises at least one first optical detectable mark (30) and the cover (26) comprises at least one second optical detectable mark (34), whereby the optical element (18) and the cover (26) are arranged and aligned both with respect to the same reference mark (32; 36) by means of the first mark (30) and the second mark (34). Due to the same reference (32; 36) for both the optical element (18) and the cover (26) manufacturing tolerances are not added to each other so that the accuracy of a correct arrangement is increased.Type: ApplicationFiled: September 16, 2008Publication date: November 11, 2010Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Harald Willwohl, Norbertus A.M. Sweegers, Jan Kloosterman
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Patent number: 7821027Abstract: An LED package includes a substrate having an electrically conductive portion and an electrically non-conductive portion composed of an oxide of the conductive portion; an LED mounted on the conductive portion and electrically connected to the conductive portion; a first electrode disposed on the non-conductive portion and electrically connected to the LED by a wire; and a second electrode disposed on the substrate and electrically connected to the LED.Type: GrantFiled: April 21, 2006Date of Patent: October 26, 2010Assignee: Samsung LED Co., Ltd.Inventors: Su-ho Shin, Soon-cheol Kweon, Kyu-ho Shin, Ki-hwan Kwon, Seung-tae Choi, Chang-youl Moon
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Publication number: 20100264449Abstract: A light emitting apparatus includes a light emitting device mounted on a base. First and second leads are electrically connected to the light emitting device. A first resin molding member formed of thermosetting resin covers at least partially the base and the first and second leads so that the first resin molding member is formed integrally with the base and the first and second leads. A second resin molding member formed of thermosetting resin is in contact with at least a part of the first resin molding member and covers the light emitting device. A recessed portion is formed in the first resin molding member on a light emitting device mount surface side of the base to open upward and to have a side surface. A protection device is mounted on the first lead or the second lead. The protection device is covered by the first resin molding member.Type: ApplicationFiled: July 8, 2010Publication date: October 21, 2010Applicant: NICHIA CORPORATIONInventor: Masaki Hayashi
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Patent number: 7816698Abstract: A heat dissipation package is provided. Conducting leads of the package are located between two dissipating parts of a heat dissipation carrier to form the heat dissipation package with a structure of heat outside and electricity inside. Consequently, there is no limitation caused by electrical elements surrounding the heat dissipation carrier, so as to enhance the expandability of the heat dissipation carrier and improve the efficiency for heat dissipation of the heat generation element.Type: GrantFiled: November 7, 2007Date of Patent: October 19, 2010Assignee: Industrial Technology Research InstituteInventor: Ming-Te Lin
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Patent number: RE41869Abstract: In the semiconductor device, a control power MOSFET chip 2 is disposed on the input-side plate-like lead 5, and the drain terminal DT1 is formed on the rear surface of the chip 2, and the source terminal ST1 and gate terminal GT1 are formed on the principal surface of the chip 2, and the source terminal ST1 is connected to the plate-like lead for source 12. Furthermore, a synchronous power MOSFET chip 3 is disposed on the output-side plate-like lead 6, and the drain terminal DT2 is formed on the rear surface of the chip 3 and the output-side plate-like lead 6 is connected to the drain terminal DT2. Furthermore, source terminal ST2 and gate terminal GT2 are formed on the principal surface of the synchronous power MOSFET chip 3, and the source terminal ST2 is connected to the plate-like lead for source 13. The plate-like leads for source 12 and 13 are exposed, and therefore, it is possible to increase the heat dissipation capability of the MCM 1.Type: GrantFiled: May 30, 2008Date of Patent: October 26, 2010Assignee: Renesas Electronics Corp.Inventors: Tetsuya Kawashima, Akira Mishima