Patents Issued in April 25, 2013
  • Publication number: 20130099209
    Abstract: The invention relates to novel metal-organic materials for hole injection layers in organic electronic components. For example, in light-emitting components such as organic light diodes (OLED) or organic light-emitting electrochemical cells (OLEEC) or organic field effect transistors or organic solar cells or organic photo detectors. Luminescence (cd/m2), efficiency (cd/A), and service life (h) of organic electronic components such as from organic light diodes in particular are highly dependent on the exciton thickness in the light-emitting layer and on the quality of the charge carrier injection and are also limited by same, among other things. The invention relates to a hole injection layer consisting of quadratic planar mononuclear transition metal complexes such as copper 2+ complexes, for example, which are embedded into a hole-conducting matrix.
    Type: Application
    Filed: March 31, 2011
    Publication date: April 25, 2013
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: David Hartmann, Sabine Szyszkowski, Andreas Kanitz, Anna Maltenberger, Wiebke Sarfert, Guenter Schmid, Jan Hauke Wemken
  • Publication number: 20130099210
    Abstract: A light-emitting module with improved light extraction efficiency and reliability is provided. In the light-emitting module, an element substrate with gas barrier properties is used; a light-emitting element is optically connected to one surface side of the element substrate; and a diffuse reflection layer is in contact with the other surface side of the element substrate. The diffuse reflection layer has a diffuse reflectance of greater than or equal to 75% and less than 100%. The light-emitting element includes a layer containing a light-emitting organic compound between a pair of light-transmitting electrodes. The element substrate transmits light emitted from the light-emitting element; the refractive index of the element substrate is different from that of layer containing a light-emitting organic compound by 0.2 or less.
    Type: Application
    Filed: October 17, 2012
    Publication date: April 25, 2013
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hisao Ikeda
  • Publication number: 20130099211
    Abstract: An electronic or electro-optic device has a first electrode, a second electrode spaced apart from the first electrode, and a dielectric layer disposed between the first and second electrodes. The dielectric layer has electrically insulating planar layers with intercalated ions therebetween such that the electrically insulating planar layers provide a barrier to impede movement of the intercalated ions to the first and second electrodes under an applied voltage while permitting a polarization of the dielectric layer while in operation.
    Type: Application
    Filed: October 17, 2012
    Publication date: April 25, 2013
    Applicant: The Johns Hopkins University
    Inventors: Howard Edan Katz, Bhola Nath Pal, Kevin Cua See
  • Publication number: 20130099212
    Abstract: A light emitting diode that includes: a light source; a buffer layer disposed on the light source and including a first matrix polymer; a polymer layer disposed on the buffer layer and including an organic/inorganic hybrid polymer; and an emission layer disposed on the polymer layer and including a light emitting particle dispersed in a second matrix polymer, wherein one selected from the light source, the buffer layer, the emission layer, and a combination thereof includes one selected from sulfurous component, a nitrogenous component, and a combination thereof.
    Type: Application
    Filed: October 19, 2012
    Publication date: April 25, 2013
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventor: SAMSUNG ELECTRONICS CO. LTD.
  • Publication number: 20130099213
    Abstract: A semiconductor nanocrystal-polymer composite including a semiconductor nanocrystal, a polymer comprising a plurality of carboxylate anion groups (—COO?) bindable to a surface of the semiconductor nanocrystal, and a metal cation bindable to a carboxylate anion group of the plurality of carboxylate anion groups.
    Type: Application
    Filed: October 19, 2012
    Publication date: April 25, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: SAMSUNG ELECTRONICS CO., LTD.
  • Publication number: 20130099214
    Abstract: A material for an organic photoelectric device includes a compound represented by the following Formula 1:
    Type: Application
    Filed: November 15, 2012
    Publication date: April 25, 2013
    Inventors: Nam-Soo KIM, Eun-Sun YU, Mi-Young CHAE, Ja-Hyun Kim
  • Publication number: 20130099215
    Abstract: Disclosed is an organic semiconductor film (10) which has a value of 1 or more but less than 10 for the ratio of the charge mobility [(charge mobility of the surface side having larger charge mobility)/(charge mobility of the surface side having smaller charge mobility)] of two opposing surface sides (11, 12). In addition, the organic semiconductor film (10) has a relative X-ray reflectance peak height of 2.0 or more with respect to the peak height of an organic semiconductor film which has the same thickness and materials and is manufactured by performing spin coating on a silicon wafer. Alternatively, the organic semiconductor film (10) has a value of 2 or more for the ratio of the charge mobility [(charge mobility of the surface side having larger charge mobility)/(charge mobility of the surface side having smaller charge mobility)] of the two opposing surface sides (11, 12).
    Type: Application
    Filed: April 27, 2011
    Publication date: April 25, 2013
    Applicant: TEIJIN LIMITED
    Inventors: Takashi Kushida, Hiroyoshi Naito
  • Publication number: 20130099216
    Abstract: Disclosed are: an organic EL material which emits light having a short wavelength and has high luminous efficiency and long light emission life; an organic EL element which contains the organic EL material; and a lighting device and a display device, each of which comprises the organic EL element.
    Type: Application
    Filed: April 8, 2011
    Publication date: April 25, 2013
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Dai Ikemizu, Hiroshi Kita, Tomohiro Oshiyama, Shinya Otsu, Rie Katakura, Hidekane Ozeki
  • Publication number: 20130099217
    Abstract: Provided is a display apparatus and a method of manufacture. The display apparatus includes a first substrate with a plurality of organic electroluminescence devices, a second substrate with a color filter, the second substrate facing the first substrate, and an adhesive layer disposed between the first substrate and the second substrate so as to cover the plurality of organic electroluminescence devices, the adhesive layer being made of a material selected from the group consisting of a phenol resin, a melanin resin, an unsaturated polyester resin, an epoxy resin, a silicon resin and a polyurethane resin.
    Type: Application
    Filed: December 6, 2012
    Publication date: April 25, 2013
    Applicant: Sony Corporation
    Inventor: Sony Corporation
  • Publication number: 20130099218
    Abstract: An organic electro-luminescence device capable of reducing a resistance of a cathode electrode to enhance brightness uniformity at each location within the device is described. The organic electro-luminescence device includes a bank layer formed over a substrate, the bank layer including a first, second, and third portion. A first electrode is formed between the first and second portions of the bank layer. An auxiliary electrode is formed where at least a part of the auxiliary electrode is formed between the second and third portions of the bank layer. A voltage drop prevention pattern is formed on the auxiliary electrode. An organic material layer formed between the first and second portions of the bank layer. A second electrode formed on the organic material layer, where at least a portion of the second electrode is electrically coupled to the auxiliary electrode.
    Type: Application
    Filed: December 6, 2012
    Publication date: April 25, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventor: LG Display Co., Ltd.
  • Publication number: 20130099219
    Abstract: There is provided a polarizer for organic light emitting diodes (OLED) having improved brightness. The polarizer, which comprises a linear polarizer and a ¼ retardation plate, comprises a reflective polarizer film disposed between the linear polarizer and the ¼ retardation plate and transmitting a polarized light horizontal to the transmission axis of the linear polarizer while reflecting a polarized light vertical to the transmission axis of the linear polarizer. The polarizer may be useful to highly improve the brightness of the OLED device when the polarizer is used in the OLED device.
    Type: Application
    Filed: December 7, 2012
    Publication date: April 25, 2013
    Applicant: LG CHEM, LTD.
    Inventor: LG CHEM, LTD.
  • Publication number: 20130099220
    Abstract: A transistor structure comprises a patterned N-type transparent oxide semiconductor formed over a substrate as a base, and a patterned p-type organic polymer semiconductor formed on the patterned N-type transparent oxide semiconductor comprising a first portion and a second portion so that the patterned N-type transparent oxide semiconductor and the first portion and the second portion of the patterned p-type organic polymer semiconductor form heterojunctions therebetween respectively, wherein the first portion of the patterned p-type organic polymer semiconductor is used as an emitter, and the second portion of the patterned p-type organic polymer semiconductor is used as a collector.
    Type: Application
    Filed: December 10, 2012
    Publication date: April 25, 2013
    Applicant: E INK HOLDINGS INC.
    Inventor: E Ink Holdings Inc.
  • Publication number: 20130099221
    Abstract: An organic EL display panel includes a substrate; an interlayer insulating layer on the substrate; first electrodes on the interlayer insulating layer to correspond to element formation regions in rows and columns; banks extending in columns to partition the regions in rows; organic light-emitting layers above the first electrodes, and each containing organic light-emitting material having light-emitting color differing between each two adjacent regions in rows; and second electrodes above the light-emitting layers, and being opposite in polarity to the first electrodes, wherein the interlayer insulating layer has first opening corresponding to interval between each two adjacent first electrodes in rows, the banks each have integrally formed buried part and main part, the buried part fills the interval and the first opening, and the main part is protrusion of the buried part and has recess on top thereof along with shapes of the interval and the first opening.
    Type: Application
    Filed: December 10, 2012
    Publication date: April 25, 2013
    Applicant: PANASONIC CORPORATION
    Inventor: Panasonic Corporation
  • Publication number: 20130099222
    Abstract: Disclosed herein is a display including: a pixel array part configured to include pixels that are arranged in a matrix and each have an electro-optical element, a write transistor for writing a video signal, a drive transistor for driving the electro-optical element based on the video signal written by the write transistor, and a holding capacitor connected between gate and source of the drive transistor, wherein the holding capacitor includes a first electrode, a second electrode disposed to face one surface of the first electrode for forming a first capacitor, and a third electrode disposed to face the other surface of the first electrode for forming a second capacitor, and the first capacitor and the second capacitor are connected in parallel to each other electrically.
    Type: Application
    Filed: December 10, 2012
    Publication date: April 25, 2013
    Applicant: Sony Corporation
    Inventor: Sony Corporation
  • Publication number: 20130099223
    Abstract: An anthanthrene based compound of the structural formula (1) is disclosed: wherein X represents an element of the Group 16; n represents an integer of from 0 to 20; m represents an integer of from 1 to 9; a bonding position in the A segment to the B segment, a bonding position in the B segment to the A segment, a bonding position in the B segment to the C segment, and a bonding position in the C segment to the B segment are at least one of from the 1-position to the 5-position and from the 7-position to the 11-position; and each of substituents R1, R2, R3, R4, R5, R7, R8, R9, R10 and R11 independently represents, for example, a substituent of one member selected from the group consisting of a hydrogen atom, an alkyl group, an aryl group, an arylalkyl group and the like.
    Type: Application
    Filed: December 13, 2012
    Publication date: April 25, 2013
    Applicant: SONY CORPORATION
    Inventor: Sony Corporation
  • Publication number: 20130099224
    Abstract: Provided are a light-emitting device and a photovoltaic cell having excellent characteristics. A light-emitting device (10) includes a cathode (34), an anode (32), a light-emitting layer (50) interposed between the cathode (34) and the anode (32), and an electron injection layer (44) provided between the cathode (34) and the light-emitting layer (50) and connected to the cathode (34), in which at least one of the anode (32) and the cathode (34) contains a conductive material having an aspect ratio of 1.5 or more, and the electron injection layer (44) contains an organic compound having at least one of an ionic group and a polar group.
    Type: Application
    Filed: June 24, 2011
    Publication date: April 25, 2013
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Takayuki Iljima, Kenta Tanaka, Masanobu Tanaka, Hideyuki Higashimura
  • Publication number: 20130099225
    Abstract: Provided is a photoelectric conversion element including a photoelectric conversion material layer that is constituted by an organic material having more excellent sensitivity and responsiveness than those of conventional ones. The photoelectric conversion element of the present invention includes (a-1) a first electrode 21 and a second electrode 22 which are disposed apart from each other, and (a-2) a photoelectric conversion material layer 30 that is disposed between the first electrode 21 and the second electrode 22, wherein the photoelectric conversion material layer 30 is formed of a dioxaanthanthrene-based compound represented by the following structural formula (1).
    Type: Application
    Filed: June 24, 2011
    Publication date: April 25, 2013
    Applicant: Sony Corporation
    Inventors: Ayumi Nihei, Masaki Murata, Norihito Kobayashi
  • Publication number: 20130099226
    Abstract: It is aimed to provide a photoelectric conversion device having high adhesion between a first semiconductor layer and an electrode layer as well as high photoelectric conversion efficiency. A photoelectric conversion device comprises an electrode layer, a first semiconductor layer located on the electrode layer and comprising a chalcopyrite-based compound semiconductor of group I-III-VI and oxygen, and a second semiconductor layer located on the first semiconductor layer and forming a pn junction with the first semiconductor layer. In the photoelectric conversion device, the first semiconductor layer has a higher molar concentration of oxygen in a part located on the electrode layer side with respect to a center portion in a lamination direction of the first semiconductor layer than a molar concentration of oxygen in the whole of the first semiconductor layer.
    Type: Application
    Filed: June 28, 2011
    Publication date: April 25, 2013
    Applicant: KYOCERA CORPORATION
    Inventors: Rui Kamada, Shuichi Kasai
  • Publication number: 20130099227
    Abstract: The present invention provides an oxide semiconductor capable of achieving a thin film transistor with excellent electric property, a thin film transistor having a channel layer formed of the oxide semiconductor, and a display device equipped with the thin film transistor. The oxide semiconductor of the present invention is an oxide semiconductor for a thin film transistor, and includes Al, In, Zn, and O as constituent atoms.
    Type: Application
    Filed: April 22, 2010
    Publication date: April 25, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Okifumi Nakagawa, Hirohiko Nishiki, Yoshimasa Chikama, Yoshifumi Ohta, Takeshi Hara, Tetsuya Aita, Masahiko Suzuki, Kazuo Nakagawa, Michiko Takei, Yoshiyuki Harumoto, Hinae Mizuno
  • Publication number: 20130099228
    Abstract: A passivation layer solution composition is provided. A passivation layer solution composition according to an exemplary embodiment of the present invention includes an organic siloxane resin represented by Chemical Formula 1 below. In Chemical Formula 1, R is at least one substituent selected from a saturated hydrocarbon or an unsaturated hydrocarbon having from 1 to about 25 carbon atoms, and x and y may each independently be from 1 to about 200, and wherein each wavy line indicates a bond to an H atom or to an x siloxane unit or a y siloxane unit, or a bond to an x siloxane unit or a y siloxane unit of another siloxane chain comprising x siloxane units or y siloxane units or a combination thereof.
    Type: Application
    Filed: June 27, 2012
    Publication date: April 25, 2013
    Inventors: Byung Du Ahn, Seung Ho Yeon, Sei-Yong Park, Mi-Hyae Park, Bu Sop Song, Tae Gweon Lee, Jun Hyun Park, Je Hun Lee, Jae Woo Park
  • Publication number: 20130099229
    Abstract: Disclosed is an oxide semiconductor layer (13) which forms a channel for a thin-film transistor and which includes at least In and oxygen and one or more types of elements from among Zn, Cd, Al, Ga, Si, Sn, Ce, and Ge. A high concentration region (13d) is disposed on one section of the oxide semiconductor layer (13), whereby said region has a maximum In concentration 30 at %; or higher than other regions on the oxide semiconductor layer (13). The film thickness of the oxide semiconductor layer (13) is 100 nm max., and the film thickness of the high concentration region (13d) is 20 nm max. or, preferably, 6 nm max. This enables a thin-film transistor with a sub-threshold slope of 100 mV/decade max., a high on-current, and a high field effect mobility to be achieved.
    Type: Application
    Filed: April 22, 2011
    Publication date: April 25, 2013
    Applicant: Hitachi, Ltd.
    Inventors: Hironori Wakana, Tetsufumi Kawamura, Hiroyuki Uchiyama, Kuniharu Fujii
  • Publication number: 20130099230
    Abstract: When a semiconductor device including a transistor in which a gate electrode layer, a gate insulating film, and an oxide semiconductor film are stacked and a source and drain electrode layers are provided in contact with the oxide semiconductor film is manufactured, after the formation of the gate electrode layer or the source and drain electrode layers by an etching step, a step of removing a residue remaining by the etching step and existing on a surface of the gate electrode layer or a surface of the oxide semiconductor film and in the vicinity of the surface is performed. The surface density of the residue on the surface of the oxide semiconductor film or the gate electrode layer can be 1×1013 atoms/cm2 or lower.
    Type: Application
    Filed: October 15, 2012
    Publication date: April 25, 2013
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventor: Semiconductor Energy Laboratory Co. Ltd.
  • Publication number: 20130099231
    Abstract: A highly reliable semiconductor device and a method for manufacturing the semiconductor device are provided. In a semiconductor device including a bottom-gate transistor in which an insulating layer functioning as a channel protective film is provided over an oxide semiconductor film, elements contained in an etching gas can be prevented from remaining as impurities on a surface of the oxide semiconductor film by performing impurity-removing process after formation of an insulating layer provided over and in contact with the oxide semiconductor film and/or formation of source and drain electrode layers. The impurity concentration in the surface of the oxide semiconductor film is lower than or equal to 5×1018 atoms/cm3, preferably lower than or equal to 1×1018 atoms/cm3.
    Type: Application
    Filed: October 16, 2012
    Publication date: April 25, 2013
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventor: Semiconductor Energy Laboratory Co., Ltd.
  • Publication number: 20130099232
    Abstract: To provide a highly reliable semiconductor device which includes a transistor including an oxide semiconductor, in a semiconductor device including a staggered transistor having a bottom-gate structure provided over a glass substrate, a gate insulating film in which a first gate insulating film and a second gate insulating film, whose compositions are different from each other, are stacked in this order is provided over a gate electrode layer. Alternatively, in a staggered transistor having a bottom-gate structure, a protective insulating film is provided between a glass substrate and a gate electrode layer. A metal element contained in the glass substrate has a concentration lower than or equal to 5×1018 atoms/cm3 (preferably, lower than or equal to 1×1018 atoms/cm3) at the interface between the first gate insulating film and the second gate insulating film or the interface between the gate electrode layer and a gate insulating film.
    Type: Application
    Filed: October 16, 2012
    Publication date: April 25, 2013
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventor: Semiconductor Energy Laboratory Co., Ltd.
  • Publication number: 20130099233
    Abstract: A highly reliable semiconductor device and a method for manufacturing the semiconductor device are provided. The semiconductor device is manufactured with a high yield to achieve high productivity. In the manufacture of a semiconductor device including a transistor in which a gate electrode layer, a gate insulating film, and an oxide semiconductor film are sequentially stacked and a source electrode layer and a drain electrode layer are provided in contact with the oxide semiconductor film, the source electrode layer and the drain electrode layer are formed through an etching step and then a step for removing impurities which are generated by the etching step and exist on a surface of the oxide semiconductor film and in the vicinity thereof is performed.
    Type: Application
    Filed: October 16, 2012
    Publication date: April 25, 2013
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventor: SEMICONDUCTOR ENERGY LABORATORY CO.
  • Publication number: 20130099234
    Abstract: Objects are to provide a semiconductor device for high power application in which a novel semiconductor material having high productivity is used and to provide a semiconductor device having a novel structure in which a novel semiconductor material is used. The present invention is a vertical transistor and a vertical diode each of which has a stacked body of an oxide semiconductor in which a first oxide semiconductor film having crystallinity and a second oxide semiconductor film having crystallinity are stacked. An impurity serving as an electron donor (donor) which is contained in the stacked body of an oxide semiconductor is removed in a step of crystal growth; therefore, the stacked body of an oxide semiconductor is highly purified and is an intrinsic semiconductor or a substantially intrinsic semiconductor whose carrier density is low. The stacked body of an oxide semiconductor has a wider band gap than a silicon semiconductor.
    Type: Application
    Filed: December 13, 2012
    Publication date: April 25, 2013
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventor: Semiconductor Energy Laboratory Co., Ltd.
  • Publication number: 20130099235
    Abstract: A semiconductor wafer includes a plurality of semiconductor chips having bonding pads; and a connection wiring line coupling the plurality of semiconductor chips such that a test signal, which is inputted through bonding pads of an arbitrary semiconductor chip among the plurality of semiconductor chips, is transmitted to bonding pads of other semiconductor chips among the plurality of semiconductor chips.
    Type: Application
    Filed: February 7, 2012
    Publication date: April 25, 2013
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Kwon Whan HAN
  • Publication number: 20130099236
    Abstract: The invention relates to a process for producing an oxygen-containing surface or interface of a silicon layer, which is arranged on a substrate, especially in the production of photovoltaic units.
    Type: Application
    Filed: June 20, 2011
    Publication date: April 25, 2013
    Applicant: Evonik Degussa GmbH
    Inventors: Bernhard Stuetzel, Wolfgang Fahrner
  • Publication number: 20130099237
    Abstract: Hydrogen concentration and oxygen vacancies in an oxide semiconductor film are reduced. Reliability of a semiconductor device which includes a transistor using an oxide semiconductor film is improved. One embodiment of the present invention is a semiconductor device which includes a base insulating film; an oxide semiconductor film formed over the base insulating film; a gate insulating film formed over the oxide semiconductor film; and a gate electrode overlapping with the oxide semiconductor film with the gate insulating film provided therebetween. The base insulating film shows a signal at a g value of 2.01 by electron spin resonance. The oxide semiconductor film does not show a signal at a g value of 1.93 by electron spin resonance.
    Type: Application
    Filed: October 15, 2012
    Publication date: April 25, 2013
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventor: Semiconductor Energy Laboratory Co., Ltd.
  • Publication number: 20130099238
    Abstract: A (liquid crystal display) LCD includes a pixel array and a gate driving circuit. The pixel array includes a plurality of first oxide thin film transistors, a first oxide thin film transistor of the first oxide thin film transistors with a shortest channel length having a first channel length. The gate driving circuit is coupled to the pixel array for driving the pixel array, and includes a plurality of second oxide thin film transistors. The second oxide thin film of the second oxide thin film transistors with a longest channel length has a second channel length. A ratio of the second channel length and the first channel length is greater than 1.5. By limiting the ratio of the second channel length and the first channel length, the aperture ratio of the display panel can be improved without deteriorating the operation stability of the LCD.
    Type: Application
    Filed: May 9, 2012
    Publication date: April 25, 2013
    Inventors: Ming-Yao Chen, Pei-Ming Chen
  • Publication number: 20130099239
    Abstract: The invention prevents disconnection of data lines that traverse two-layered gate lines via an insulating film. Data lines 20 override and thereby traverse gate lines 10 with an insulating film deposited therebetween. The gate lines 10 each have a two-layered structure including a lower AlCu layer 11 and an upper MoCr layer 12. When the thickness ratio of the upper layer 12 to the lower layer 11 is in the range of 0.4 to 1.0, it is possible to prevent a decrease in the etch speed of the upper layer 12 near the side edges of the gate line 10, which occurs due to galvanization. As a result, the upper layer 12 is prevented from having an overhang. The absence of overhangs on the gate lines 10 prevents the data lines 20 from being disconnected at the intersections of the gate lines 10 and the data lines 20.
    Type: Application
    Filed: October 2, 2012
    Publication date: April 25, 2013
    Applicant: JAPAN DISPLAY EAST INC.
    Inventor: JAPAN DISPLAY EAST INC.
  • Publication number: 20130099240
    Abstract: A Thin Film Transistor (TFT) includes a substrate, a semiconductor layer disposed on the substrate a first source electrode and a first drain electrode spaced apart from each other on the semiconductor layer, a channel area disposed in the semiconductor layer between the first source electrode and the first drain electrode, an etching prevention layer disposed on the channel area, the first source electrode, and the first drain electrode and a second source electrode in contact with the first source electrode, and a second drain electrode in contact with the first drain electrode.
    Type: Application
    Filed: October 12, 2012
    Publication date: April 25, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hyun-Jung LEE, Sung-Haeng CHO, Woo-Geun LEE, Jang-Hoon HA, Hee-Jun BYEON, Ji-Yun HONG, Ji-Soo OH
  • Publication number: 20130099241
    Abstract: An array substrate includes first and second lines on a substrate and formed of a metallic material; a gate electrode connected to the first line; a gate insulating layer on the first and second lines and the gate electrode and including a groove exposing the substrate and positioned between the first and second lines; a semiconductor layer on the gate insulating layer and corresponding to the gate electrode; a data line crossing the first and second lines and on the gate insulating layer; a source electrode connected to the data line; a drain electrode spaced apart from the source electrode; a passivation layer on the data line, the source electrode and the drain electrode and including an opening, the opening exposing the gate insulating layer and the drain electrode; and a pixel electrode positioned on the gate insulating layer and in the opening and contacting the drain electrode.
    Type: Application
    Filed: October 25, 2012
    Publication date: April 25, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventor: LG DISPLAY CO., LTD.
  • Publication number: 20130099242
    Abstract: A display substrate having a low resistance signal line and a method of manufacturing the display substrate are provided. The display substrate includes an insulation substrate, a gate line, a data line and a pixel electrode. The gate line gate line is formed through a sub-trench and an opening portion. The sub-trench is formed in the insulation substrate and the opening portion is formed through a planarization layer on the insulation substrate at a position corresponding to the position of the sub-trench. The data line crosses the gate line. The pixel electrode is electrically connected to the gate line and the data line through a switching element. Thus, a signal line is formed through a trench formed by using a planarization layer and an insulation substrate, so that a resistance of the signal line may be reduced.
    Type: Application
    Filed: December 14, 2012
    Publication date: April 25, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventor: SAMSUNG DISPLAY CO., LTD.
  • Publication number: 20130099243
    Abstract: A circuit structure includes a substrate, a nucleation layer of undoped aluminum nitride, a graded buffer layer comprising aluminum, gallium, nitrogen, one of silicon and oxygen, and a p-type conductivity dopant, a ungraded buffer layer comprising gallium, nitrogen, one of silicon and oxygen, and a p-type conductivity dopant without aluminum, and a bulk layer of undoped gallium nitride over the ungraded buffer layer. The various dopants in the graded buffer layer and the ungraded buffer layer increases resistivity and results in layers having an intrinsically balanced conductivity.
    Type: Application
    Filed: October 20, 2011
    Publication date: April 25, 2013
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chi-Ming CHEN, Po-Chun LIU, Hung-Ta LIN, Chin-Cheng CHANG, Chung-Yi YU, Chia-Shiung TSAI, Ho-Yung David HWANG
  • Publication number: 20130099244
    Abstract: The method of growing non-polar epitaxial heterostructures for light-emitting diodes producing white emission and lasers, on the basis of compounds and alloys in AlGaInN system, comprising the step of vapor-phase deposition of one or multiple heterostructures layers described by the formula AlxGa1-xN (0<x?1), wherein the step of growing A3N structures using (a)-langasite (La3Ga5SiO14) substrates is applied for the purposes of reducing the density of defects and mechanical stresses in heterostructures.
    Type: Application
    Filed: April 11, 2012
    Publication date: April 25, 2013
    Applicants: SEOUL SEMICONDUCTOR CO., LTD.
    Inventors: Vladimir Semenovich ABRAMOV, Naum Petrovich SOSHCHIN, Valeriy Petrovich SUSHKOV, Nikolay Valentinovich SHCHERBAKOV, Vladimir Vladimirovich ALENKOV, Sergei Aleksandrovich SAKHAROV, Vladimir Aleksandrovich GORBYLEV
  • Publication number: 20130099245
    Abstract: The present invention provides a field effect transistor which can achieve both of a high threshold voltage and a low on-state resistance, a method for producing the same, and an electronic device. In the field effect transistor, each of a buffer layer 112, a channel layer 113, a barrier layer 114, and a spacer layer 115 is formed of a group-III nitride semiconductor, and each of the upper surfaces thereof is a group-III atomic plane that is perpendicular to a (0001) crystal axis. The lattice-relaxed buffer layer 112, the lattice-relaxed channel layer 113, and the barrier layer 114 having a tensile strain, and the spacer layer 115 are laminated on a substrate 100 in this order. The gate insulating film 14 is arranged on the spacer layer 115. The gate electrode 15 is arranged on the gate insulating film 14. The source electrode 161 and the drain electrode 162 are electrically connected to the channel layer 113 directly or via another component.
    Type: Application
    Filed: December 15, 2010
    Publication date: April 25, 2013
    Applicant: NEC CORPORATION
    Inventors: Yuji Ando, Takashi Inoue, Kazuki Ota, Yasuhiro Okamoto, Tatsuo Nakayama, Kazuomi Endo
  • Publication number: 20130099246
    Abstract: A surface of the substrate consists in plurality of neighbouring stripe shaped flat surfaces of a width from 1 to 2000 ?m. Longer edges of the flat surfaces are parallel one to another and planes of these surfaces are disoriented relatively to the crystallographic plane of gallium nitride crystal defined by Miller-Bravais indices (0001), (11-22) or (11-20). Disorientation angle of each of the flat surfaces is between 0 and 3 degree and is different for each pair of neighbouring flat surfaces. Substrate according to the invention allows epitaxial growth of a layered AlInGaN structure by MOCVD or MBE method which permits for realization of a non-absorbing mirrors laser diode emitting a light of the wavelength from 380 to 550 nm and a laser diodes array which may emit simultaneously light of various wavelengths in the range of 380 to 550 nm.
    Type: Application
    Filed: March 15, 2011
    Publication date: April 25, 2013
    Inventors: Piotr Perlin, Marcin Sarzynski, Tadeusz Suski, Robert Czernecki, Michal Leszczynski
  • Publication number: 20130099247
    Abstract: An electrode structure is described in which conductive regions are recessed into a semiconductor region. Trenches may be formed in a semiconductor region, such that conductive regions can be formed in the trenches. The electrode structure may be used in semiconductor devices such as field effect transistors or diodes. Nitride-based power semiconductor devices are described including such an electrode structure, which can reduce leakage current and otherwise improve performance.
    Type: Application
    Filed: October 11, 2012
    Publication date: April 25, 2013
    Applicant: Massachusetts Institute of Technology
    Inventor: Massachusetts Institute of Technology
  • Publication number: 20130099248
    Abstract: There is provided a nitride semiconductor light emitting device including an n-type nitride semiconductor layer, an active layer disposed on the n-type nitride semiconductor layer, and a p-type nitride semiconductor layer disposed on the active layer. One or more current diffusion layers are disposed on a surface of the n-type nitride semiconductor layer. The current diffusion layer(s) includes a material having greater band gap energy than that of a material forming the n-type nitride semiconductor layer so as to form a two-dimensional electron gas layer at an interface with the material forming the n-type nitride semiconductor layer.
    Type: Application
    Filed: October 18, 2012
    Publication date: April 25, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: SAMSUNG ELECTRONICS CO., LTD.
  • Publication number: 20130099249
    Abstract: An ultraviolet light sensor and method of manufacturing thereof are disclosed. The ultraviolet light sensor includes Group-III Nitride layers adjacent to a silicon wafer with one of the layers at least partially exposed such that a surface thereof can receive UV light to be detected. The Group-III Nitride layers include a p-type layer and an n-type layer, with p/n junctions therebetween forming at least one diode. Conductive contacts are arranged to conduct electrical current through the sensor as a function of ultraviolet light received at the outer Group-III Nitride layer. The Group-III Nitride layers may be formed from, e.g., GaN, InGaN, AlGaN, or InAlN. The sensor may include a buffer layer between one of the Group-III Nitride layers and the silicon wafer. By utilizing silicon as the substrate on which the UV sensor diode is formed, a UV sensor can be produced that is small, efficient, cost-effective, and compatible with other semiconductor circuits and processes.
    Type: Application
    Filed: October 24, 2012
    Publication date: April 25, 2013
    Applicant: ROSESTREET LABS, LLC
    Inventor: RoseStreet Labs, LLC
  • Publication number: 20130099250
    Abstract: An improved structure of semiconductor chips with enhanced die strength and a fabrication method thereof are disclosed. The improved structure comprises a substrate, an active layer, and a backside metal layer, in which the active layer is formed on the front side of the substrate and includes at least one integrated circuit; the backside metal layer is formed on the backside of the substrate, which fully covers the area corresponding to the area covered by the integrated circuits in the active layer. By using the specific dicing process of the present invention, the backside metal layer and the substrate can be diced tidily. Die cracking on the border between the substrate and the backside metal layer of the diced single chip can be prevented, and thereby the die strength can be significantly enhanced.
    Type: Application
    Filed: January 24, 2012
    Publication date: April 25, 2013
    Inventor: Chang-Hwang HUA
  • Publication number: 20130099251
    Abstract: When viewed in a plan view, a termination region (TM) surrounds an element region (CL). A first side of a silicon carbide substrate (SB) is thermally etched to form a side wall (ST) and a bottom surface (BT) in the silicon carbide substrate (SB) at the termination region (TM). The side wall (ST) has a plane orientation of one of {0-33-8} and {0-11-4}. The bottom surface (BT) has a plane orientation of {000-1}. On the side wall (ST) and the bottom surface (BT), an insulating film (8T) is formed. A first electrode (12) is formed on the first side of the silicon carbide substrate (SB) at the element region (CL). A second electrode (14) is formed on a second side of the silicon carbide substrate (SB).
    Type: Application
    Filed: October 17, 2012
    Publication date: April 25, 2013
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventor: Sumitomo Electric Industries, Ltd.
  • Publication number: 20130099252
    Abstract: A method of manufacturing a silicon carbide substrate includes the steps of preparing an ingot composed of single crystal silicon carbide, obtaining a silicon carbide substrate by slicing the ingot, and polishing a surface of the silicon carbide substrate. In the step of obtaining a silicon carbide substrate, the ingot is sliced such that cutting proceeds in a direction in which an angle formed with respect to a <11-20> direction or a <1-100> direction is 15±5° in an orthogonal projection on a {0001} plane. In the step of polishing a surface of the silicon carbide substrate, at least one of main surfaces of the silicon carbide substrate is polished while the entire surface of at least one of the main surfaces of the silicon carbide substrate is in contact with a polishing surface.
    Type: Application
    Filed: October 18, 2012
    Publication date: April 25, 2013
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventor: SUMITOMO ELECTRIC INDUSTRIES, LTD.
  • Publication number: 20130099253
    Abstract: A semiconductor device that can suppress deterioration in crystal quality caused by a lattice mismatch between a substrate and an epitaxial layer and that also can ensure a voltage sustaining performance, and a wafer for forming the semiconductor device. An epitaxial wafer of silicon carbide (SiC), which is used for manufacturing a semiconductor device, includes a low resistance substrate and an epitaxial layer provided thereon. The epitaxial layer is doped with the same dopant as a dopant doped into the substrate, and has a laminated structure including a low concentration layer and an ultrathin high concentration layer. A doping concentration in the low concentration layer is lower than that in the silicon carbide substrate. A doping concentration in the ultrathin high concentration layer is equal to that in the silicon carbide substrate.
    Type: Application
    Filed: July 14, 2011
    Publication date: April 25, 2013
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kenichi Ohtsuka, Nobuyuki Tomita, Tomoaki Furusho
  • Publication number: 20130099254
    Abstract: A light emitting diode includes a substrate and a light emitting structure. The light emitting structure includes a light outputting surface away from the substrate and a plurality of sidewalls adjoining the light outputting surface. A top peripheral edge interconnecting the light outputting surface and the sidewalls of the light emitting structure is a rounded top peripheral edge or a beveled top peripheral edge. A top surface of the substrate surrounding the light emitting structure is exposed to air and formed with micro-structures.
    Type: Application
    Filed: August 1, 2012
    Publication date: April 25, 2013
    Applicant: ADVANCED OPTOELECTRONIC TECHNOLOGY, INC.
    Inventors: TZU-CHIEN HUNG, CHIA-HUI SHEN, CHIEN-CHUNG PENG
  • Publication number: 20130099255
    Abstract: There is provided a semiconductor light emitting device having a zinc oxide-based transparent conductive thin film in which a Group III element is doped to have waveforms having a plurality of periods in a thickness direction.
    Type: Application
    Filed: October 25, 2012
    Publication date: April 25, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: SAMSUNG ELECTRONICS CO., LTD.
  • Publication number: 20130099256
    Abstract: A multi-chip package includes a lower substrate; at least two semiconductor chips stacked over the lower substrate and each defined with a via hole; an upper substrate coupled to a semiconductor chip positioned uppermost among the semiconductor chips; a light emitting part coupled to the lower substrate corresponding to the via hole; an electrowetting liquid lens coupled to a lower surface of the upper substrate for receiving a signal transferred from the light emitting part through the via hole; a light receiving part coupled to a sidewall of the via hole of each semiconductor chip configured to receive a signal from the electrowetting liquid lens.
    Type: Application
    Filed: July 23, 2012
    Publication date: April 25, 2013
    Applicant: SK HYNIX INC.
    Inventor: Seung Yeop LEE
  • Publication number: 20130099257
    Abstract: An LED package with efficient illumination includes a base, a plurality of LED chips, an enclosure and an optically transparent plate. The LED chips are placed on the base and are electrically connecting to the base. The enclosure is located on the surface of the base. The LED chips are enclosed by the enclosure. A plurality of grooves is uniformly formed on the surface of the optically transparent plate. A volume of silicone mixed with phosphor powder is injected into each of the grooves. Thus, when packaging the plurality of LED chips, it will reduce the usage amount of the phosphor powder of the optically transparent plate.
    Type: Application
    Filed: October 24, 2011
    Publication date: April 25, 2013
    Inventor: Chao- Chuan CHEN
  • Publication number: 20130099258
    Abstract: An organic light emitting diode (OLED) display according to an exemplary embodiment of the invention includes: a display substrate including a plurality of pixel areas; a tilt layer formed on the display substrate of each of the plurality of pixel areas, and having a tilt angle with respect to the display substrate; a first electrode formed on the tilt layer; an organic emission layer formed on the first electrode; a second electrode formed on the organic emission layer; an encapsulation substrate disposed on the second electrode and in parallel with the display substrate; and a prism sheet formed on the encapsulation substrate and having a plurality of prisms.
    Type: Application
    Filed: May 7, 2012
    Publication date: April 25, 2013
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Jae-Ik Lim, Yi-Joon Ahn, Gee-Bum Kim, Yong-Seok Yeo, Man-Seob Choi