With Means For Cooling Or Heating (epo) Patents (Class 257/E33.075)
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Patent number: 7737462Abstract: A light emitting diode has a base made of heat conductive material, a wire plate made of an insulation material and secured to an upper surface of the base. Conductive patterns are secured to the wire plate, and a light emitting diode element is secured to the base at an exposed mounting area. The light emitting diode element is electrically connected to the conductive patterns.Type: GrantFiled: June 12, 2007Date of Patent: June 15, 2010Assignee: Citizen Electronics Co., LtdInventors: Nodoka Oishi, Koichi Fukasawa, Sadato Imai
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Patent number: 7737463Abstract: Disclosed is a light emitting diode (LED) package having multiple molding resins. The LED package includes a pair of lead terminals and a heat sink inserted into a heat sink support ring. At least portions of the pair of lead terminals and the heat sink are embedded in a package main body. The package main body has an opening through which the pair of lead terminals is exposed. An LED die is mounted in the opening and electrically connected to the pair of lead terminals. A first molding resin covers the LED die. A second molding resin with higher hardness than the first molding covers the first molding resin. Therefore, stress to be imposed on the LED die can be reduced and the deformation of the molding resins can be prevented.Type: GrantFiled: August 21, 2008Date of Patent: June 15, 2010Assignee: Seoul Semiconductor Co., Ltd.Inventors: Chung Hoon Lee, Do Hyung Kim, Keon Young Lee
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Publication number: 20100133581Abstract: An LED having enhanced heat dissipation is disclosed. For example, an LED die can have extended bond pads that are configured to enhance heat flow from an active region of the LED to a lead frame. A heat transmissive substrate can further enhance heat flow away from the LED die. By enhancing heat dissipation, more current can be used to drive the LED. The use of more current facilitates the production of brighter LEDs.Type: ApplicationFiled: February 3, 2010Publication date: June 3, 2010Applicant: BRIDGELUX, INC.Inventor: Wei Shi
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Publication number: 20100133578Abstract: A solid state lighting device includes a device-scale stamped heatsink with a base portion and multiple segments or sidewalls projecting outward from the base portion, and dissipates all steady state thermal load of a solid state emitter to an ambient air environment. The heatsink is in thermal communication with one or more solid state emitters, and may define a cup-like cavity containing a reflector. At least a portion of each one sidewall portion or segment extends in a direction non-parallel to the base portion. A dielectric layer and at least one electrical trace may be deposited over a metallic sheet to form a composite sheet, and the composite sheet may be processed by stamping and/or progressive die shaping to form a heatsink with integral circuitry. At least some segments of a heatsink may be arranged to structurally support a lens and/or reflector associated with a solid state lighting device.Type: ApplicationFiled: August 4, 2009Publication date: June 3, 2010Applicant: CREE LED LIGHTING SOLUTIONS, INC.Inventors: Paul Kenneth Pickard, Nicholas W. Medendorp, JR.
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Publication number: 20100133557Abstract: A metal-based photonic device package module that is capable of greatly improving heat releasing efficiency and implementing a thin package is provided. The metal-based photonic device package module includes a metal substrate that is formed the shape of a plate, a metal oxide layer that is formed on the metal substrate to have a mounting cavity, a photonic device that is mounted in the mounting cavity of the metal oxide layer, and a reflecting plane that is formed at an inner surface of the mounting cavity of the metal oxide layer.Type: ApplicationFiled: September 18, 2007Publication date: June 3, 2010Applicants: WAVENICS INC., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Young-Se Kwon, Kyoung-Min Kim, Sung-Woo Hyun, Bo-In Son
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Publication number: 20100136725Abstract: A method and system for removing heat from an LED facilitates the fabrication of LEDs having enhanced brightness. A thermally conductive interposer can be attached to the top of the LED. Heat can flow through the top of the LED and into the interposer. The interposer can carry the heat away from the LED. Light can exit the LED though an at least partially transparent substrate of the LED. By removing heat from an LED, the use of more current through the LED is facilitated, thus resulting in a brighter LED.Type: ApplicationFiled: February 5, 2010Publication date: June 3, 2010Applicant: BRIDGELUX, INC.Inventor: Wei Shi
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Publication number: 20100127301Abstract: The invention provides a semiconductor high-power light-emitting module including a heat-dissipating member, a heat-conducting device, and a diode light-emitting device. The heat-dissipating member includes an isolator member coupled to a first side of the heat-dissipating member. The heat-dissipating member has a second side opposite to the first side. The isolator member has a third side opposite to the first side. The environment temperature at the third side is higher than that at the second side. The heat-conducting device has a flat end and a contact portion tightly mounted on the heat-dissipating member. The diode light-emitting device is disposed on the flat end of the heat-conducting device. The semiconductor light-emitting module of the invention, applied to a headlamp of an automobile, has properties of saving electricity and long life, and furthermore the capability of integrating the heat-dissipating member into a shell of the automobile is both artistic and practical.Type: ApplicationFiled: October 10, 2006Publication date: May 27, 2010Inventor: Jen-Shyan Chen
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Patent number: 7723730Abstract: A carrier layer (1) for a semiconductor layer sequence comprising an electrical insulation layer (2) containing AlN or a ceramic. Furthermore a method for producing semiconductor chips is described.Type: GrantFiled: November 29, 2004Date of Patent: May 25, 2010Assignee: Osram Opto Semiconductors GmbHInventors: Stefan Groetsch, Stefan Illek, Andreas Ploessl, Berthold Hahn
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Publication number: 20100123164Abstract: A light emitting device includes a light-emitting portion including a metal part including a metal able to be bonded to a solder material, and a heat dissipation member that includes aluminum, aluminum alloy, magnesium or magnesium alloy and a bonding portion processed to be bonded to the solder material. The metal part of the light-emitting portion is bonded via the solder material to the bonding portion of the heat dissipation member. The solder material includes a material unable to be directly bonded to the heat dissipation member, the metal part of the light-emitting portion is formed by metalizing an insulation of ceramic or semiconductor, and the bonding portion includes a thermal expansion coefficient between that of the heat dissipation member and that of the insulation.Type: ApplicationFiled: November 20, 2009Publication date: May 20, 2010Applicant: TOYODA GOSEI CO., LTD.Inventors: Yoshinobu SUEHIRO, Koji Tasumi
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Patent number: 7718991Abstract: A lighting device comprises a solid state light emitter, first and second electrodes connected to the emitter, an encapsulant region comprising a silicone compound and a supporting region. The encapsulant region extends to an external surface of the lighting device. At least a portion of the first electrode is surrounded by the supporting region. The encapsulant region and the supporting region together define an outer surface which substantially encompasses the emitter. A method of making a lighting device, comprises electrically connecting first and second electrodes to an emitter; inserting the emitter into mold cavity; inserting an encapsulant composition comprising a one silicone compound; and then inserting a second composition to substantially surround at least a portion of the first electrode.Type: GrantFiled: May 22, 2007Date of Patent: May 18, 2010Assignee: Cree LED Lighting Solutions, Inc.Inventor: Gerald H. Negley
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Publication number: 20100117113Abstract: An exemplary light emitting diode includes a substrate, a metal material and a light emitting diode chip. The substrate has a first surface and a first through hole defined in the first surface. The first through hole is filled with the metal material. The light emitting diode chip is mounted on the first surface contacting the metal material in the first through hole.Type: ApplicationFiled: June 20, 2009Publication date: May 13, 2010Applicant: FOXSEMICON INTEGRATED TECHNOLOGY, INC.Inventors: YING-CHIEH LU, KUO-FENG CHIANG, CHIH-MING LAI
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Patent number: 7714433Abstract: In one embodiment, the present invention includes a semiconductor package having a plurality of fan blades embedded within a first surface of the package, where a first group of the fan blades extend from a first side of the package and a second group of the fan blades extend from a second side of semiconductor package. The fan blades may be powered by piezoelectric devices to cause motion of the fan blades. Other embodiments are described and claimed.Type: GrantFiled: March 9, 2007Date of Patent: May 11, 2010Assignee: Intel CorporationInventors: Edoardo Campini, Javier Leija, William Handley
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Patent number: 7709952Abstract: An LED package is improved in heat radiating performance. The LED package includes a package substrate having heat radiating means; a heat radiating layer arranged on the package substrate with an area at least larger than a mounting area of a light emitting diode chip to provide a horizontal heat radiating path; and an electrically-connecting structure including first and second conductive leads arranged on the heat radiating layer. The light emitting diode chip is mounted on the heat radiating layer or the first conductive lead by a heat conductive adhesive layer.Type: GrantFiled: December 22, 2006Date of Patent: May 4, 2010Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Jin Woo Park, Young Bok Yoon
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Patent number: 7705365Abstract: A light emitting module of a lighting device has a casing, a heat radiating member and terminals. The terminals extend from the casing and connects to a circuit board disposed along a light diffusing member. The heat radiating member extends in a direction perpendicular to the terminals. Alternatively, the terminals are connected to heat radiating lands formed on a second circuit board that is provided separately from a first circuit board and the heat radiating member is connected to a heat radiating land formed on the second circuit board. Further, the heat radiating member can be connected to a heat radiating plate overlapping with the second circuit board, in place of the heat radiating land.Type: GrantFiled: January 23, 2007Date of Patent: April 27, 2010Assignee: Denso CorporationInventors: Kazumasa Kurokawa, Yosimi Kondo
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Publication number: 20100096662Abstract: A semiconductor chip assembly includes a semiconductor device, a heat spreader, a conductive trace and an adhesive. The semiconductor device is electrically connected to the conductive trace and thermally connected to the heat spreader. The heat spreader includes a thermal post and a base. The thermal post extends upwardly from the base into a first opening in the adhesive, and the base extends laterally from the thermal post. The conductive trace includes a pad, a terminal and a signal post. The signal post extends upwardly from the terminal into a second opening in the adhesive.Type: ApplicationFiled: December 19, 2009Publication date: April 22, 2010Inventors: Charles W.C. Lin, Chia-Chung Wang
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Patent number: 7701055Abstract: A plurality of disc-shaped substrates carry light emitters and are axially stacked, spaced apart, in a metal housing to dissipate the heat produced by the light emitters. The housing comprises mutually connected elongate planar ribs that abut the light emitters or substrates for thermally connecting the light emitters to the housing. The ribs have shoulders. The substrates are received between the ribs and abut the shoulders. The shoulders are positioned proximate each light emitter in intimate contact with the substrate for efficient heat dissipation.Type: GrantFiled: January 30, 2007Date of Patent: April 20, 2010Assignee: Hong Applied Science and Technology Research Institute Company LimitedInventors: Kai Chiu Wu, Ming Lu, Chak Hau Pang
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Patent number: 7692290Abstract: A heat slug includes a heat spreading member and a supporting member. The supporting member extends outwardly from the edge of the heat spreading member. The tips of the supporting member are formed with a plurality of contact portions, wherein each said contact portion has a bottom face inclined to the surface of the chip carrier art an angle of more that 5 degrees.Type: GrantFiled: October 14, 2008Date of Patent: April 6, 2010Assignee: Advanced Semiconductor Engineering, Inc.Inventors: Yun Lung Chang, Pin Hung Chiu, Chun Chen Liu
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Publication number: 20100072511Abstract: A semiconductor chip assembly includes a semiconductor device, a heat spreader, a conductive trace and an adhesive. The semiconductor device is electrically connected to the conductive trace and thermally connected to the heat spreader. The heat spreader includes a post and a base that include a copper surface layer and an aluminum core. The post extends upwardly from the base into an opening in the adhesive, and the base extends laterally from the post. The adhesive extends between the post and the conductive trace and between the base and the conductive trace. The conductive trace provides signal routing between a pad and a terminal.Type: ApplicationFiled: November 28, 2009Publication date: March 25, 2010Inventors: Charles W.C. Lin, Chia-Chung Wang
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Publication number: 20100075448Abstract: A method of making a semiconductor chip assembly includes providing a post and a base, mounting an adhesive on the base including inserting the post into an opening in the adhesive, mounting a conductive layer on the adhesive including aligning the post with an aperture in the conductive layer, then flowing the adhesive into and upward in a gap located in the aperture between the post and the conductive layer, solidifying the adhesive, then providing a conductive trace that includes a pad, a terminal and a selected portion of the conductive layer, providing a cap on the post, mounting a semiconductor device on a heat spreader that includes the post, the base and the cap, electrically connecting the semiconductor device to the conductive trace and thermally connecting the semiconductor device to the heat spreader.Type: ApplicationFiled: November 30, 2009Publication date: March 25, 2010Inventors: Charles W.C. Lin, Chia-Chung Wang, David M. Sigmond
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Publication number: 20100072505Abstract: A light-emitting device assembly which can be used in many applications has a contact carrier, at least one light-emitting device, a heat sink and at least one securing member. The contact carrier has a light-emitting device receiving region and resilient contacts which are provided proximate to the light-emitting device receiving region. The at least one light-emitting device has leads which extend therefrom to mechanically and electrically engage the resilient contacts. The heat sink is thermally coupled to the at least one light-emitting device. The at least one securing member extends through the contact carrier and into the heat sink to releasably retain the contact carrier and the at least one light-emitting device in position relative to each other and relative to the heat sink.Type: ApplicationFiled: September 23, 2008Publication date: March 25, 2010Applicant: TYCO ELECTRONICS CORPORATIONInventor: Charles Raymond GINGRICH, III
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Publication number: 20100072506Abstract: An ultraviolet light emitting diode package for emitting ultraviolet light is disclosed. The ultraviolet light emitting diode package comprises an LED chip emitting light with a peak wavelength of 350 nm or less, and a protective member provided so that surroundings of the LED chip is covered to protect the LED chip, the protective member having a non-yellowing property to energy from the LED chip.Type: ApplicationFiled: September 18, 2007Publication date: March 25, 2010Applicant: Seoul Opto Device Co., Ltd.Inventors: Jeong Suk Bae, Jae Jo Kim, Do Hyung Kim, Dae Sung Kal
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Publication number: 20100072510Abstract: A semiconductor chip assembly includes a semiconductor device, a heat spreader, a conductive trace and an adhesive. The semiconductor device is electrically connected to the conductive trace and thermally connected to the heat spreader. The heat spreader includes a post, a base and a cap. The post extends upwardly from the base into an opening in the adhesive, the base extends below and laterally from the post, and the cap extends above and laterally from the post. The adhesive extends between the post and the conductive trace and between the base and the conductive trace. The conductive trace provides signal routing between a pad and a terminal and the heat spreader provides thermal dissipation between the cap and the base.Type: ApplicationFiled: November 28, 2009Publication date: March 25, 2010Inventors: Charles W.C. Lin, Chia-Chung Wang, David M. Sigmond
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Publication number: 20100072499Abstract: The present invention has an object to provide a LED package having a means capable of precisely limiting a region in which a resin containing a phosphor is dotted on a member on which an LED chip is supported. To this end, an LED package according to the present invention comprises a package body having an inner space with an LED chip mounted therein, the inner space being open toward a light emission direction; a chip support member mounted to the inner space of the package body to support the LED chip; a phosphor resin member formed by dotting resin containing a phosphor onto the LED chip; and a region limitation means provided on the chip support member and defining a region in which the phosphor resin member is formed.Type: ApplicationFiled: September 27, 2007Publication date: March 25, 2010Applicant: Seoul Semiconductor Co., Ltd.Inventors: You Jin Kwon, Jung Hu Seo, Byoung Ki Pyo, Kang Hyun Cho
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Patent number: 7683474Abstract: A light emitting diode (LED) assembly and a method of making the assembly, in which a container having an open top is provided with a two sets of holes through a bottom of the container, an electrically conductive heat sink is attached to the container bottom beneath the first set of holes, and in which an electrically conductive sheet is attached to the container bottom beneath the second set of holes, where the heat sink and sheet are isolated from each other. LEDs are placed in the first set of holes so that each has a first LED terminal on and adhered to an exposed part of the heat sink through the respective one of the first holes and in which a second LED terminal is connected via a wire lead to the sheet through a respective one of the second holes.Type: GrantFiled: February 14, 2005Date of Patent: March 23, 2010Assignee: Osram Sylvania Inc.Inventor: Steven C. Sidwell
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Patent number: 7683396Abstract: A high power light emitting device assembly with electro-static-discharge (ESD) protection ability and the method of manufacturing the same, the assembly comprising: at least two sub-mounts, respectively being electrically connected to an anode electrode and a cathode electrode, each being made of a metal of high electric conductivity and high thermal conductivity; a light emitting device, arranged on the sub-mounts; and an ESD protection die, sandwiched and glued between the sub-mounts, for enabling the high-power operating light emitting device to have good heat dissipating path while preventing the same to be damaged by transient power overload of static surge.Type: GrantFiled: October 18, 2006Date of Patent: March 23, 2010Assignee: Industrial Technology Research InstituteInventors: Ming-Chieh Chou, Wen-Shan Lin, Hung-Hsin Tsai
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Patent number: 7683395Abstract: A light-emitting diode arrangement having at least one light-emitting diode chip (1), each light-emitting diode chip (1) being assigned at least one optical element (4). In addition, the light-emitting diode arrangement has at least one heat-conducting element (13) which is suitable to carry away the heat generated by the light-emitting diode chip, and at least one cooling apparatus which is suitable to carry heat away from the heat-conducting element. The light-emitting diode arrangement is particularly well suited, for example, to use in motor vehicle headlamps.Type: GrantFiled: September 29, 2005Date of Patent: March 23, 2010Assignee: Osram Opto Semiconductors GmbHInventors: Rainer Huber, Joachim Reill, Kurt-Jürgen Lang, Moritz Engl, Markus Hofmann, Mario Wanninger, Michael Sailer, Stefan Grötsch
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Publication number: 20100065873Abstract: A light emitting device (100) is provided, which comprises a substrate (101) accomodating at least one light emitting diode (104) and an elastomeric layer (105) arranged to receive light from the light emitting diode(s) (104). The elastomeric layer (105) comprises phosphors (106), which enhance the output of light from the device (100). The light emitting device (100) is flexible and may be incorporated into a fabric, such as a textile or a plastics. Consequently, a textile product (300) comprising such a device (100) is provided.Type: ApplicationFiled: March 25, 2008Publication date: March 18, 2010Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Rabin Bhattacharya, Martinus Jacobus Johannes Hack, Adrianus Sempel
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Publication number: 20100059786Abstract: A semiconductor chip assembly includes a semiconductor device, a heat spreader, a substrate and an adhesive. The semiconductor device is electrically connected to the substrate and thermally connected to the heat spreader. The heat spreader includes a post and a base. The post extends upwardly from the base into an opening in the adhesive and an aperture in the substrate, and the base extends laterally from the post. The adhesive extends between the post and the substrate and between the base and the substrate. The assembly provides signal routing between a pad and a terminal.Type: ApplicationFiled: November 11, 2009Publication date: March 11, 2010Inventors: Charles W.C. Lin, Chia-Chung Wang
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Publication number: 20100051985Abstract: The present invention provides an LED package including: a heat discharge body provided with a plurality of radially protruding heat discharge fins at an outer circumferential surface and molding material filled spaces between the heat discharge fins; a package body which is received on a top surface of the heat discharge body and has a cavity; a pair of lead frames extended from upper parts of the heat discharge body to both sides thereof; and an LED chip mounted inside the cavity.Type: ApplicationFiled: October 21, 2008Publication date: March 4, 2010Inventors: Hyung Kun KIM, Ho Sun Paek, Suk Ho Jung, Hak Hwan Kim, Young Jin Lee
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Publication number: 20100055811Abstract: A method of making a semiconductor chip assembly includes providing a post and a base, mounting an adhesive on the base including inserting the post through an opening in the adhesive, mounting a substrate on the adhesive including inserting the post into an aperture in the substrate to form a gap in the aperture between the post and the substrate, then flowing the adhesive into and upward in the gap, solidifying the adhesive, then mounting a semiconductor device on a heat spreader that includes the post and the base, electrically connecting the semiconductor device to the substrate and thermally connecting the semiconductor device to the heat spreader.Type: ApplicationFiled: November 13, 2009Publication date: March 4, 2010Inventors: Charles W.C. Lin, Chia-Chung Wang
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Publication number: 20100044741Abstract: A fighting device of the present invention includes light emitting unit 20 having a light emitting element installed on a board, and body 11 having light emitting unit 20 mounted thereon. Body 11 has graphite having anisotropic heat conductivity, and the graphite has inner wall 11c in thermal contact with light emitting unit 20. The anisotropy of the graphite has direction Z having a first heat conductivity and direction X1 having a second heat conductivity that is higher than the first heat conductivity. Inner wall 11c of the graphite to which heat generated from light emitting unit 20 is transferred is formed to intersect with direction X1.Type: ApplicationFiled: May 8, 2008Publication date: February 25, 2010Applicant: NEC LIGHTING, LTD.Inventor: Katsuyuki OKIMURA
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Publication number: 20100038660Abstract: System, method, and apparatus for two phase cooling in light-emitting devices are disclosed. In one aspect of the present disclosure, an apparatus includes a light-emitting device and a two-phase cooling apparatus coupled to the light-emitting device. The coupling of the two-phase cooling apparatus and the light-emitting device is operatively configured such that thermal coupling between the light-emitting device and the two-phase cooling apparatus enables, when, in operation, heat generated from the light-emitting device to be absorbed by a substance of a first phase in the two-phase cooling apparatus to convert the substance to a second phase.Type: ApplicationFiled: October 24, 2008Publication date: February 18, 2010Applicant: Progressive Cooling Solutions, Inc.Inventor: Ahmed Shuja
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Publication number: 20100032692Abstract: An AC light emitting device, in which a plurality of light emitting cells formed on a substrate are flip-bonded to a submount to be driven under an AC power source is disclosed. The light emitting device comprises a first serial array of light emitting cells, and a second serial array of light emitting cells, wherein the second serial array is connected in reverse parallel to the first serial array. Meanwhile, bonding patterns are formed on a submount substrate, and the light emitting cells of the first and second serial arrays are flip-bonded to the bonding patterns. Further, node connecting patterns are formed on the submount substrate, and connect the bonding patterns such that nodes corresponding to each other provided in the first and second serial arrays are electrically connected to each other.Type: ApplicationFiled: September 5, 2007Publication date: February 11, 2010Applicant: SEOUL OPTO DEVICE CO., LTD.Inventors: Keon Young Lee, Dae Sung Kal
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Publication number: 20100025702Abstract: A substrate-free LED device is provided. The LED device comprises a substrate, an epitaxial layer disposed on the substrate, a first electrode disposed on a portion of the epitaxial layer, a second electrode disposed on another portion of the epitaxial layer, and a protection layer, disposed over the epitaxial layer. It is noted that in the LED device, the substrate comprises, for example but not limited to, high heat-sink substrate, and the protection layer comprises, for example but not limited to, high heat-sink, high transparent material.Type: ApplicationFiled: October 13, 2009Publication date: February 4, 2010Applicant: CHUNGHWA PICTURE TUBES, LTD.Inventor: Ching-Chung Chen
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Patent number: 7656026Abstract: A semiconductor device, includes: a wiring substrate having a wiring pattern on a front surface thereof; a first semiconductor chip mounted on the front surface of the wiring substrate; a first heat radiator having a first recess housing the first semiconductor chip and making contact with the front surface of the wiring substrate and the first semiconductor chip directly or with a first insulation layer; a second heat radiator making contact with a rear surface of the wiring substrate directly or with a second insulation layer; and a first fixing member passing through the first heat radiator, the wiring substrate, and the second heat radiator, and pressing the first heat radiator and the second heat radiator to the wiring substrate.Type: GrantFiled: July 7, 2008Date of Patent: February 2, 2010Assignee: Seiko Epson CorporationInventors: Yoshiharu Ogata, Yoshikatsu Soma, Hiroharu Kondo, Munehide Saimen
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Publication number: 20100001294Abstract: The invention relates to an LED module (1) comprising at least one light-emitting diode (LED) (3) and at least one heat sink (2) for active cooling, having at least one coolant channel (6) through which a cooling fluid flows. The dimensions of the at least one coolant channel (6) are selected so that a predominantly laminar flow of the fluid is set up in the at least one coolant channel (5) during operation of the LED module (1).Type: ApplicationFiled: June 12, 2009Publication date: January 7, 2010Applicant: OSRAM Gesellschaft mit beschraenkter HaftungInventors: Alexander Faller, Moritz Kaiser, Martin Reuter
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Publication number: 20090321749Abstract: A light emitting device comprising a heat sink, a dielectric layer arranged on the heat sink, a heat conductive layer arranged on the dielectric layer, an undercoating arranged on at least a part of the heat conductive layer, and a light emitting chip attached to the heat conductive layer by means of the undercoating.Type: ApplicationFiled: June 24, 2009Publication date: December 31, 2009Applicant: Osram Opto Semiconductors GmbHInventor: Kimberly PEILER
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Patent number: 7639719Abstract: An optimized structure for heat dissipation is provided that may include two types of thermal shunts. The first type of thermal shunt employed involves using p and n metal contact layers to conduct heat away from the active region and into the silicon substrate. The second type of thermal shunt involves etching and backfilling a portion of the silicon wafer with poly-silicon to conduct heat to the silicon substrate.Type: GrantFiled: December 31, 2007Date of Patent: December 29, 2009Assignee: Intel CorporationInventors: Alexander Fang, Richard Jones, Hyundai Park, Matthew Sysak
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Patent number: 7633153Abstract: A semiconductor module comprises a mounting board. A plurality of power switching device chips are mounted on the mounting board by flip-chip bonding. The chip has an upper surface and a lower surface and is configured to face the upper surface toward the mounting board. A drive IC chip is mounted on the mounting board by flip-chip bonding. The drive IC chip is operative to drive gates of transistors formed in the plurality of power switching device chips. A plurality of heat sink members are located on the lower surfaces of the plurality of power switching device chips, respectively. A resinous member is provided to seal the plurality of power switching device chips and the drive IC chip in a single package.Type: GrantFiled: July 16, 2007Date of Patent: December 15, 2009Assignee: Kabushiki Kaisha ToshibaInventors: Kazuo Shimokawa, Takashi Koyanagawa, Masako Ooishi, Tatsuya Yamada, Osamu Usuda, Yoshiki Endo, Taiki Miura, Masaki Toyoshima, Ichiro Omura, Akio Nakagawa, Kenichi Matsushita, Yusuke Kawaguchi, Haruki Arai, Hiroshi Takei, Tomohiro Kawano, Noriaki Yoshikawa, Morio Takahashi, Yasuhito Saito, Masahiro Urase
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Patent number: 7629622Abstract: A light emitting module of a lighting device has a casing, a heat radiating member and terminals. The terminals extend from the casing and connects to a circuit board disposed along a light diffusing member. The heat radiating member extends in a direction perpendicular to the terminals. Alternatively, the terminals are connected to heat radiating lands formed on a second circuit board that is provided separately from a first circuit board and the heat radiating member is connected to a heat radiating land formed on the second circuit board. Further, the heat radiating member can be connected to a heat radiating plate overlapping with the second circuit board, in place of the heat radiating land.Type: GrantFiled: January 23, 2007Date of Patent: December 8, 2009Assignee: Denso CorporationInventors: Kazumasa Kurokawa, Yosimi Kondo
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Publication number: 20090273005Abstract: Disclosed herein is a structure of opto-electronic package having a Si-substrate. The Si-substrates are manufactured in batch utilizing the micro-electromechanical processes or the semiconductor processes, so that these Si-substrates are made with great precision and full of varieties. Based on the material characteristic of the Si-substrate, and the configuration of the components, such as the connectors, opto-electronic devices, depressions, solder bumps, etc., the present invention can improve the optical effect, the heat dissipating effect, and the reliability of the opto-electronic package structure, and simplifies the complexity of the opto-electronic package structure.Type: ApplicationFiled: July 9, 2009Publication date: November 5, 2009Inventor: Hung-Yi Lin
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Patent number: 7612385Abstract: Disclosed herein is a package structure including at least one high power light-emitting diode to exhibit excellent heat release properties. In the package structure, a light-emitting diode chip which generates heat is directly attached to a beacon processed to protrude from part of a heat spreader having high heat conductivity, whereby an electrical wiring portion is separated from a heat release portion, thus maximizing heat release properties and realizing high luminance and reliability.Type: GrantFiled: December 30, 2005Date of Patent: November 3, 2009Assignee: Korea Photonics Technology InstituteInventors: Young-Woo Kim, Tae-Hoon Kim, Young-Moon Yu
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Patent number: 7612386Abstract: A circuit element having a heat-conducting body having top and bottom surfaces, and a die having an electronic circuit thereon is disclosed. The die includes first and second contact points for powering the electronic circuit. The die is in thermal contact with the heat-conducting body, the die having a bottom surface that is smaller than the top surface of the heat-conducting body. The first contact point on the die is connected to a first trace bonded to the top surface of the heat-conducting body. An encapsulating cap covers the die. The first trace has a first portion that extends outside of the encapsulating cap and a second portion that is covered by the encapsulating cap. The heat-conducting body is preferably constructed from copper or aluminum and includes a cavity having an opening on the first surface in which the die is mounted. The die preferably includes a light-emitting device.Type: GrantFiled: February 20, 2006Date of Patent: November 3, 2009Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.Inventors: Kee Yean Ng, Cheng Why Tan, Ji Kin Tham
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Publication number: 20090267086Abstract: A method and system for removing heat from an LED facilitates the fabrication of LEDs having enhanced brightness. A thermally conductive interposer can be attached to the top of the LED. Heat can flow through the top of the LED and into the interposer. The interposer can carry the heat away from the LED. Light can exit the LED though an at least partially transparent substrate of the LED. By removing heat from an LED, the use of more current through the LED is facilitated, thus resulting in a brighter LED.Type: ApplicationFiled: April 29, 2008Publication date: October 29, 2009Inventor: Wei Shi
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Patent number: 7608485Abstract: In a circuit, an integrated circuit package and methods for attaching integrated circuit dies or discrete power components to flanges of integrated circuit packages, each of the integrated circuit dies is sawed from a wafer. The thickness of the wafer is reduced by mechanical grinding, applying an isotropic wet chemical etching to the wafer to eliminate crystal defects, evaporating adhesion and diffusion barrier metals on the backside of the wafer, evaporating Au and Sn on the backside of the wafer, wherein the weight proportion of Au is equal to or larger than 85%, sawing the wafer into the circuit dies, and soldering each of the circuit dies to a respective flange of an integrated circuit package.Type: GrantFiled: September 8, 2006Date of Patent: October 27, 2009Assignee: Infineon Technologies AGInventors: Sam-Hyo Hong, Henrik Hoyer, Jeffrey Hume
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Patent number: 7608915Abstract: A heat dissipation semiconductor package includes a chip carrier, a semiconductor chip, a heat conductive adhesive, a heat dissipation member, and an encapsulant. The semiconductor chip is flip-chip mounted on the chip carrier and defined with a heat conductive adhesive mounting area. Periphery of the heat adhesive mounting area is spaced apart from edge of the semiconductor chip. The heat dissipation member is mounted on the heat conductive adhesive formed in the heat conductive adhesive mounting area. The encapsulant formed between the chip carrier and the heat dissipation member encapsulates the semiconductor chip and the heat conductive adhesive, and embeds edges of the active surface and non-active surface and side edge of the semiconductor chip, thereby increasing bonding area between the encapsulant and the semiconductor chip. The side edges of the heat conductive adhesive and the semiconductor chip are not flush with each other, thereby preventing propagation of delamination.Type: GrantFiled: May 8, 2008Date of Patent: October 27, 2009Assignee: Siliconware Precision Industries Co., Ltd.Inventors: Chun-Ming Liao, Chien-Ping Huang, Ho-Yi Tsai, Cheng-Hsu Hsiao
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Publication number: 20090250709Abstract: An exemplary LED package includes a dielectric plate, a heat conductor, a first planar electrode and a second planar electrode, a LED chip, and metal wires. The dielectric plate comprises a receiving groove defined therein. The heat conductor is positioned in the dielectric plate opposite to the receiving groove, and the heat conductor comprises a holding portion exposed on bottom of the receiving groove. The first and second planar electrodes are respectively received in the dielectric plate extending to the receiving groove and are spaced from the heat conductor. The first and second electrodes are respectively electrically connected to the LED chip by the metal wires. The LED chip is mounted on the holding portion of the heat conductor.Type: ApplicationFiled: April 7, 2009Publication date: October 8, 2009Applicant: ADVANCED OPTOELECTRONIC TECHNOLOGY, INC.Inventors: CHUNG-MIN CHANG, CHIH-PENG HSU, CHUN-WEI WANG
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Patent number: 7598535Abstract: An LED assembly includes a packaged LED module (30) and a heat dissipation device (50). The LED module includes at least an LED die therein and a plurality of conductive pins (32, 34) extending downwardly from a bottom portion thereof. The heat dissipation device is thermally and electrically connected with the at least an LED die. The heat dissipation device defines at least a mounting hole (542) therein. At least one of the conductive pins is fittingly received in the at least a mounting hole and thermally and electrically connects with the heat dissipation device.Type: GrantFiled: July 20, 2006Date of Patent: October 6, 2009Assignee: Foxconn Technology Co., Ltd.Inventors: Tseng-Hsiang Hu, Yeu-Lih Lin, Li-Kuang Tan
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Publication number: 20090242922Abstract: A light-emitting diode (LED) lamp includes a columnar body having a plurality of heat-radiating fins, an LED supporting end, and a mounting end; a first conducting plate disposed on the LED supporting end; an LED having a first electrode in electric contact with the first conducting plate; a second conducting plate in electric contact with a second electrode of the LED; a cap having a rear coupling end covered around the LED supporting end of the columnar body and a front end defining a central opening to enclose a light-emitting section of the LED therein; a first annular gasket disposed between the rear coupling end of the cap and the LED supporting end of the columnar body; and a second annular gasket disposed between the light-emitting section and the central opening of the cap. Therefore, the LED lamp is waterproof and easy to maintain, and allows good heat radiation.Type: ApplicationFiled: March 25, 2008Publication date: October 1, 2009Inventor: CHIEN-FENG LIN
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Publication number: 20090236616Abstract: An LED assembly includes a substrate and a plurality of LEDs mounted on the substrate. Each LED comprises an LED die, a base supporting the LED die thereon and thermally contacting the substrate to take heat generated by the LED die to the substrate, a pair of leads electrically connecting the LED die to input a current to the LED die, and an encapsulant enveloping the LED die. The pair of leads hover above the substrate to separate an electrical route of the LED assembly from a heat conducting pathway thereof. Furthermore, each LED has a plurality of legs extending raidally from the base thereof to fit in the base of an adjacent LED, to thereby engagingly lock with the adjacent LED.Type: ApplicationFiled: April 27, 2008Publication date: September 24, 2009Applicant: FOXCONN TECHNOLOGY CO., LTD.Inventor: CHIN-LONG KU