Ternary Or Quaternary Compound (e.g., Cdhgte) (epo) Patents (Class 257/E33.02)
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Patent number: 8883628Abstract: A structure comprises a top metal connector formed underneath a bond pad. The bond pad is enclosed by a first passivation layer and a second passivation layer. A polymer layer is further formed on the second passivation layer. The dimension of an opening in the first passivation layer is less than the dimension of the top metal connector. The dimension of the top metal connector is less than the dimensions of an opening in the second passivation layer and an opening in the polymer layer.Type: GrantFiled: June 25, 2013Date of Patent: November 11, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Yao-Chun Chuang, Chang-Chia Huang, Tsung-Shu Lin, Chen-Cheng Kuo, Chen-Shien Chen
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Patent number: 8816365Abstract: Disclosed is a hybrid LED chip: comprising a first clad layer of P-type semiconductor material; a second clad layer of N-type semiconductor material; an active layer between the first and second clad layers; a first bonding metal layer on the first clad layer; a second bonding metal layer on the second clad layer; a ceramic substrate positioned on and bonded to the first and second bonding metal layers, wherein the ceramic substrate includes at least one first via hole to expose the first bonding metal layer, and at least one second via hole to expose the second bonding metal layer; a P-type electrode formed by burying a conductive material in the at least one first via hole; and an N-type electrode formed by burying a conductive material in the at least one second via hole, wherein the first and second via holes in the ceramic substrate are formed in cylindrical shapes, and the circumferential surface of each cylindrical shape is provided with an intaglio pattern.Type: GrantFiled: December 20, 2010Date of Patent: August 26, 2014Assignee: LG Display Co., Ltd.Inventors: Young Gi Hong, Seung Ho Jang, Won Ho Kim
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Patent number: 8643005Abstract: An organic light emitting display device includes a substrate, a transparent electrode layer, a source/drain layer, an IGZO semiconductor layer, a first insulating layer, a gate layer, a second insulating layer and an organic light emitting diode. The organic light-emitting display device can have a simplified manufacturing process. In addition, the present invention also provides a method for manufacturing the organic light-emitting display device.Type: GrantFiled: November 18, 2010Date of Patent: February 4, 2014Assignee: E Ink Holdings Inc.Inventors: Sung-Hui Huang, Wei-Chou Lan, Chia-Chun Yeh, Ted-Hong Shinn
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Publication number: 20120205646Abstract: A display with a photo sensor is provided, wherein the photo sensor is integrated with an active device array substrate of the display and fabricated through an existing process to reduce the manufacturing cost. A photosensitive silicon-rich dielectric layer or any other photosensitive material layer having similar photosensitive characteristics (for example, a photosensitive semiconductor layer) is adopted to form the photo sensor with a lower electrode and a transparent upper electrode. Thereby, the fill factor of the photo sensor is maximized and noises caused by a backlight source electrode are eliminated.Type: ApplicationFiled: July 7, 2011Publication date: August 16, 2012Applicant: AU OPTRONICS CORPORATIONInventors: An-Thung Cho, Wei-Ting Lin, Jiun-Jye Chang, Tien-Hao Chang, Po-Lun Chen, Wei-Lung Liao
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Publication number: 20120193739Abstract: A direct radiation converter is disclosed which includes a radiation detection material having an anode side and a cathode side in which the radiation detection material has a doping profile running in the anode-side to cathode-side direction. A radiation detector is further disclosed having such a direct radiation converter and having an anode array and a cathode array, and optionally having evaluation electronics for reading out a detector signal, as well as a medical apparatus having such a radiation detector. Also described is a method for producing a direct radiation converter which includes incorporating into a radiation detection material a doping profile running in the anode-side to cathode-side direction.Type: ApplicationFiled: January 27, 2012Publication date: August 2, 2012Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Peter Hackenschmied, Christian Schröter, Matthias Strassburg
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Patent number: 8148731Abstract: Semiconductor films and structures, such as films and structures utilizing zinc oxide or other metal oxides, and processes for forming such films and structures, are provided for use in metal oxide semiconductor light emitting devices and other metal oxide semiconductor devices, such as ZnO based semiconductor devices.Type: GrantFiled: August 28, 2007Date of Patent: April 3, 2012Assignee: Moxtronics, Inc.Inventors: Yungryel Ryu, Tae-seok Lee, Henry W. White
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Publication number: 20120068172Abstract: An organic light emitting display device includes a substrate, a transparent electrode layer, a source/drain layer, an IGZO semiconductor layer, a first insulating layer, a gate layer, a second insulating layer and an organic light emitting diode. The organic light-emitting display device can have a simplified manufacturing process. In addition, the present invention also provides a method for manufacturing the organic light-emitting display device.Type: ApplicationFiled: November 18, 2010Publication date: March 22, 2012Applicant: E Ink Holdings Inc.Inventors: SUNG-HUI HUANG, Wei-Chou Lan, Chia-Chun Yeh, Ted-Hong Shinn
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Publication number: 20120012840Abstract: In at least some embodiments, a thin-film transistor (TFT) includes a gate electrode and a gate dielectric covering the gate dielectric. The TFT also includes a source electrode and a drain electrode adjacent the gate dielectric. The TFT also includes a bi-layer channel between the source electrode and the drain electrode, the bi-layer channel having a zinc indium oxide (ZIO) layer positioned adjacent the gate dielectric and a zinc tin oxide (ZTO) layer that covers the ZIO layer.Type: ApplicationFiled: March 31, 2009Publication date: January 19, 2012Inventors: Vincent Korthuis, Randy Hoffman
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Publication number: 20110140128Abstract: Light emitting systems are disclosed. The light emitting system includes an LED that emits light at a first wave-length. A primary portion of the emitted first wavelength light exits the LED from a top surface of the LED that has a minimum lateral dimension Wmin. The remaining portion of the emitted first wavelength light exits the LED from one or more sides of the LED that has a maximum edge thickness Tmax (122, 124). The ratio Wmin/Tmax is at least 30. The light emitting system further includes a re-emitting semiconductor construction that includes a semiconductor potential well. The re-emitting semiconductor construction receives the first wavelength light that exits the LED from the top surface and converts at least a portion of the received light to light of a second wavelength.Type: ApplicationFiled: August 18, 2009Publication date: June 16, 2011Inventors: Catherine A. Leatherdale, Michael A. Haase, Todd A. Ballen
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Publication number: 20110133175Abstract: A layered heterostructure light emitting device comprises at least a substrate, an n-type gallium nitride-based semi-conductor cladding layer region, a p-type gallium nitride-based semiconductor cladding layer region, a p-type zinc oxide-based hole injection layer region, and an ohmic contact layer region. Alternatively, the device may also comprise a capping layer region, or may also comprise a reflective layer region and a protective capping layer region. The device may also comprise one or more buried insertion layers adjacent to the ohmic contact layer region. The ohmic contact layer region may be comprised of materials such as indium tin oxide, gallium tin oxide, or indium tin oxide material. An n-electrode pad is formed that is in electrical contact with the n-type gallium nitride based cladding layer region. A p-type pad is formed that is in electrical contact with the p-type region.Type: ApplicationFiled: January 6, 2009Publication date: June 9, 2011Inventors: Yungryel Ryu, Tae-Seok Lee, Henry W. White
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Patent number: 7612432Abstract: It is an object to provide a p-type ZnS based semiconductor material having a low resistance which can easily form an ohmic contact to a metallic material. Moreover, the invention provides a semiconductor device and a semiconductor light emitting device which include an electrode having a low resistance on a substrate other than a single crystal substrate, for example, a glass substrate. The semiconductor material according to the invention is used as a hole injecting electrode layer of a light emitting device and has a transparent property in a visible region which is expressed in a composition formula of Zn(1-?-?-?)Cu?Mg?Cd?S(1-x-y)SexTey (0.004???0.4, ??0.2, ??0.2, 0?x?1, 0?y?0.2, and x+y?1).Type: GrantFiled: February 3, 2005Date of Patent: November 3, 2009Assignee: Hoya CorporationInventors: Hiroaki Yanagita, Hiroshi Kawazoe, Masahiro Orita
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Patent number: 7525128Abstract: A light-emitting zinc oxide based compound semiconductor device of a double-heterostructure. The double-heterostructure includes a light-emitting layer formed of a low-resistivity Mg1?x?yCdxZnyO; 0?x<1, 0<y?1, and x+y=0.1 to 1 compound semiconductor doped with p-type and/or n-type impurity. A first clad layer is joined to one surface of the light-emitting layer and formed of an n-type zinc oxide compound semiconductor having a composition different from the light-emitting layer. A second clad layer is joined to another surface of the light-emitting layer and formed of a low-resistivity, p-type zinc oxide based semiconductor having a composition different from the light-emitting layer.Type: GrantFiled: December 29, 2006Date of Patent: April 28, 2009Assignee: Cermet, Inc.Inventors: Jeffrey E. Nause, Shanthi Ganesan
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Patent number: 7462881Abstract: A method of fabricating semiconductor devices, such as GaN LEDs, on insulating substrates, such as sapphire. Semiconductor layers are produced on the insulating substrate using normal semiconductor processing techniques. Trenches that define the boundaries of the individual devices are then formed through the semiconductor layers and into the insulating substrate, beneficially by using inductive coupled plasma reactive ion etching. The trenches are then filled with an easily removed layer. A metal support structure is then formed on the semiconductor layers (such as by plating or by deposition) and the insulating substrate is removed. Electrical contacts, a passivation layer, and metallic pads are then added to the individual devices, and the individual devices are then diced out.Type: GrantFiled: August 30, 2007Date of Patent: December 9, 2008Assignee: LG Electronics Inc.Inventors: Jong-Lam Lee, In-kwon Jeong, Myung Cheol Yoo
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Patent number: 7189996Abstract: In the present invention, an electron injection composition for a light-emitting element, comprising a pyridine derivative represented by general formula 1 and at least one of an alkali metal, an alkali earth metal, and a transition metal, is used to form an electron injection layer in a portion of a layer including luminescent material in a light-emitting element, and it is also an object of the present invention to provide, by using the composition, a light-emitting element that has more superior characteristics and a longer lifetime as compared to conventional ones. (where each of R1 to R8 represents hydrogen, halogen, a cyano group, an alkyl group having 1 to 10 carbon atoms, a haloalkyl group having 1 to 10 carbon atoms, an alkoxyl group having 1 to 10 carbon atoms, a substituted or unsubstituted aryl group, or a substituted or unsbstituted heterocyclic group.Type: GrantFiled: March 4, 2005Date of Patent: March 13, 2007Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Yasuo Nakamura