Amorphous Semiconductor Material Patents (Class 257/52)
  • Patent number: 8421074
    Abstract: A Semiconductor device including, on at least one surface of a layer made of a crystalline semiconductor material of a certain type of conductivity, a layer made of an amorphous semiconductor material, doped with a type of conductivity opposite to the type of conductivity of the crystalline semiconductor material layer, characterized in that the concentration of the doping elements in the amorphous semiconductor layer varies gradually.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: April 16, 2013
    Assignees: Centre National de la Recherche Scientifique (CNRS), Ecole Polytechnique
    Inventors: Pere Roca I. Cabarrocas, Jerome Damon-Lacoste
  • Patent number: 8421068
    Abstract: An object is to reduce leakage current and parasitic capacitance of a transistor used for an LSI, a CPU, or a memory. A semiconductor integrated circuit such as an LSI, a CPU, or a memory is manufactured using a thin film transistor in which a channel formation region is formed using an oxide semiconductor which becomes an intrinsic or substantially intrinsic semiconductor by removing impurities which serve as electron donors (donors) from the oxide semiconductor and has larger energy gap than that of a silicon semiconductor. With use of a thin film transistor using a highly purified oxide semiconductor layer with sufficiently reduced hydrogen concentration, a semiconductor device with low power consumption due to leakage current can be realized.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: April 16, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama, Hiroyuki Miyake, Kei Takahashi, Kouhei Toyotaka, Masashi Tsubuku, Kosei Noda, Hideaki Kuwabara
  • Patent number: 8415787
    Abstract: The present invention relates to a heat dissipator that includes a conductive substrate and a plurality of nanostructures supported by the conductive substrate. The nanostructures are at least partly embedded in an insulator. Each of the nanostructures includes a plurality of intermediate layers on the conductive substrate. At least two of the plurality of intermediate layers are interdiffused, and material of the at least two of the plurality of intermediate layers that are interdiffused is present in the nanostructure.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: April 9, 2013
    Assignee: Smoltek AB
    Inventor: Mohammad Shafiqul Kabir
  • Patent number: 8409887
    Abstract: An organic light emitting diode (OLED) display device and a method of fabricating the same are provided. The OLED display device includes a substrate having a thin film transistor region and a capacitor region, a buffer layer disposed on the substrate, a gate insulating layer disposed on the substrate, a lower capacitor electrode disposed on the gate insulating layer in the capacitor region, an interlayer insulating layer disposed on the substrate, and an upper capacitor electrode disposed on the interlayer insulating layer and facing the lower capacitor electrode, wherein regions of each of the buffer layer, the gate insulating layer, the interlayer insulating layer, the lower capacitor electrode, and the upper capacitor electrode have surfaces in which protrusions having the same shape as grain boundaries of the semiconductor layer are formed. The resultant capacitor has an increased surface area, and therefore, an increased capacitance.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: April 2, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byoung-Keon Park, Tae-Hoon Yang, Jin-Wook Seo, Soo-Beom Jo, Dong-Hyun Lee, Kil-Won Lee, Maxim Lisachenko, Yun-Mo Chung, Bo-Kyung Choi, Jong-Ryuk Park, Ki-Yong Lee
  • Publication number: 20130069057
    Abstract: A wafer with high rupture resistance includes a plurality of surfaces, wherein the surfaces include a largest surface having a largest area than others and a side surface connected to the fringe of the largest surface. The side surface forms a nanostructured layer thereon to assist the stress dispersion of the wafer. Accordingly, the wafer is provided with a high rupture resistance so as to prevent the wafer from damages during semiconductor or other processes.
    Type: Application
    Filed: September 20, 2012
    Publication date: March 21, 2013
    Inventor: JER-LIANG YEH
  • Patent number: 8389999
    Abstract: A crystalline material structure with reduced dislocation density and method of producing same is provided. The crystalline material structure is annealed at temperatures above the brittle-to-ductile transition temperature of the crystalline material structure. One or more stress elements are formed on the crystalline material structure so as to annihilate dislocations or to move them into less harmful locations.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: March 5, 2013
    Assignee: Massachusetts Institute of Technology
    Inventors: Anthony Buonassisi, Mariana Bertoni, Ali Argon, Sergio Castellanos, Alexandria Fecych, Douglas Powell, Michelle Vogl
  • Publication number: 20130048986
    Abstract: An OLED display includes: a first pixel including a first pixel electrode of a pixel electrode, a second pixel including a second pixel electrode of the pixel electrode, and a third pixel including a third pixel electrode of the pixel electrode; a resonance assistance layer on the first pixel electrode; an organic emission layer including a first organic emission layer on the resonance assistance layer and the second pixel electrode, a second organic emission layer on the first organic emission layer, and a third organic emission layer on the third pixel electrode; a common electrode on the organic emission layer; and a color mixture preventing layer on the common electrode and configured to absorb overlapped light in an overlapped wavelength region of a wavelength region of first light emitted by the first organic emission layer and a wavelength region of second light emitted by the second organic emission layer.
    Type: Application
    Filed: May 9, 2012
    Publication date: February 28, 2013
    Inventors: Sung-Soo Lee, Ok-Keun Song, Chan-Young Park, Yong-Han Lee
  • Publication number: 20130048987
    Abstract: Embodiments of the present invention provide p-i-n structures and methods for forming p-i-n structures useful, for example, in photovoltaic cells. In some embodiments, a method for forming a p-i-n structure on a substrate may include forming a bi-layer p-type layer on the substrate by: depositing a microcrystalline p-type layer atop the protective layer; and depositing an amorphous p-type layer atop the microcrystalline p-type layer; depositing an amorphous i-type layer via hot wire chemical vapor deposition atop the amorphous p-type layer; and depositing an amorphous n-type layer atop the amorphous i-type layer. A p-i-n structure may include a bi-layer p-type layer disposed above a substrate, the bi-layer p-type layer having a microcrystalline p-type layer and an amorphous p-type layer disposed atop the microcrystalline p-type layer; an amorphous i-type layer disposed atop the bi-layer p-type layer; and an n-type layer disposed atop the i-type layer.
    Type: Application
    Filed: August 9, 2012
    Publication date: February 28, 2013
    Applicant: APPLIED MATERIALS, INC.
    Inventor: SUKTI CHATTERJEE
  • Publication number: 20130048988
    Abstract: Techniques for incorporating nanotechnology into electronic fuse (e-fuse) designs are provided. In one aspect, an e-fuse structure is provided. The e-fuse structure includes a first electrode; a dielectric layer on the first electrode having a plurality of nanochannels therein; an array of metal silicide nanopillars that fill the nanochannels in the dielectric layer, each nanopillar in the array serving as an e-fuse element; and a second electrode in contact with the array of metal silicide nanopillars opposite the first electrode. Methods for fabricating the e-fuse structure are also provided as are semiconductor devices incorporating the e-fuse structure.
    Type: Application
    Filed: October 16, 2012
    Publication date: February 28, 2013
    Applicant: International Business Machines Corporation
    Inventor: International Business Machines Corporation
  • Publication number: 20130048985
    Abstract: A device and a method of forming a continuous polycrystalline Ge film having crystalline Ge islands is provided that includes depositing an amorphous Ge (a-Ge) layer on a substrate, oxidizing the top surface of the a-Ge layer to form a GeOx layer, depositing a seed layer of Al on the GeOx layer and catalyzing the Al seed layer, where Ge mass transport is generated from the underlying a-Ge layer to the Al seed layer through the GeOx layer by thermal annealing, where a continuous polycrystalline Ge film having crystalline Ge islands is formed on the Al seed layer.
    Type: Application
    Filed: August 24, 2011
    Publication date: February 28, 2013
    Inventors: Shu Hu, Paul C. McIntyre
  • Patent number: 8383452
    Abstract: In one embodiment, a method for manufacturing a semiconductor device is disclosed. The method can include depositing a first amorphous film having a first impurity, depositing a third amorphous lower-layer film on the first amorphous film, forming microcrystals on the third amorphous lower-layer film, depositing a third amorphous upper-layer film on the third amorphous lower-layer film to cover the microcrystals, depositing a second amorphous film having a second impurity on the third amorphous upper-layer film, and radiating microwaves to crystallize the third amorphous lower-layer film and the third amorphous upper-layer film to form a third crystal layer, and crystallize the first amorphous film and the second amorphous film to form a first crystal layer and a second crystal layer.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: February 26, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomonori Aoyama, Kiyotaka Miyano, Yusuke Oshiki
  • Patent number: 8386883
    Abstract: A phase-change memory (PCM) includes a matrix of storage cells, including at least a first group with at least one cell. Each cell includes a phase change material having at least a first resistance value and a second resistance value, such that the first group can have an identical message encoded therein in at least a first way and a second way. The memory also includes a controller configured to encode the identical message in the at least first group the first or second way, based on which way causes the least amount of writing cost, given current levels of the group. Another embodiment of memory includes a matrix of storage cells, including at least a first group with at least one cell. Each of the storage cells has at least two levels, such that each of the storage cells can have an identical message encoded therein in at least a first way and a second way (the cells can be PCM or another technology).
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: February 26, 2013
    Assignee: International Business Machines Corporation
    Inventors: Michele Franceschini, John Peter Karidis, Luis A Lastras-Montano, Thomas Mittelholzer, Mark N Wegman
  • Publication number: 20130037804
    Abstract: A display device includes: a base film including plastic; an active layer on the base film, the active layer including a polysilicon layer formed by crystallizing an amorphous silicon layer using a laser; a barrier layer between the active layer and the base film; and a laser absorption layer between the barrier layer and the active layer.
    Type: Application
    Filed: March 23, 2012
    Publication date: February 14, 2013
    Inventors: Jae-Seob LEE, Chang-Yong JEONG, Yong-Hwan PARK, Kyung-Mi KWON
  • Publication number: 20130033655
    Abstract: Disclosed is an active matrix substrate (20a) that includes: an insulating substrate (10a); a first thin film transistor (5a) that is formed on the insulating substrate (10a) and that includes a first oxide semiconductor layer (13a) having a first channel region (Ca); a second thin film transistor (5b) that is formed on the insulating substrate (10a) and that includes a second oxide semiconductor layer (13b) having a second channel region (Cb); and an interlayer insulating film (17) that covers the first oxide semiconductor layer (13a) and the second oxide semiconductor layer (13b). A channel protective film (25), which is formed of a material different from that of the interlayer insulating film (17), is provided between the second oxide semiconductor layer (13b) and the interlayer insulating film (17) on the second channel region (Cb) in the second oxide semiconductor layer (13b).
    Type: Application
    Filed: January 12, 2011
    Publication date: February 7, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Tadayoshi Miyamoto
  • Patent number: 8368071
    Abstract: A semiconductor device and a method for preparing the same that can solve crack of a semiconductor film, capacitance electrodes and the like due to stress when forming a source electrode and a drain electrode in a semiconductor device having a thin film transistor and a holding capacitance with three or more capacitance electrodes is provided. Before forming the source electrode and the drain electrode, a crystalline silicon film for relaxing the stress is formed, then a contact hole connecting to the semiconductor film of the thin film transistor is opened, and a metal film to be the source electrode and the drain electrode is formed.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: February 5, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Akira Ishikawa
  • Publication number: 20130026470
    Abstract: Disclosed is a wiring structure that attains excellent low-contact resistance even if eliminating a barrier metal layer that normally is disposed between a Cu alloy wiring film and a semiconductor layer, and wiring structure with excellent adhesion. The wiring structure is provided with a semiconductor layer, and a Cu alloy layer, on a substrate in this order from the substrate side. A laminated structure is included between the semiconductor layer, and the Cu alloy layer. The laminated structure is composed of a (N, C, F, O) layer which contains at least one element selected from among a group composed of nitrogen, carbon, fluorine, and oxygen, and a Cu—Si diffusion layer which includes Cu and Si, in this order from the substrate side. At least one element selected from among the group composed of nitrogen, carbon, fluorine, and oxygen that composes the (N, C, F, O) layer is bonded to Si in the semiconductor layer.
    Type: Application
    Filed: March 30, 2011
    Publication date: January 31, 2013
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Yasuaki Terao, Shinya Morita, Aya Miki, Katsufumi Tomihisa, Hiroshi Goto
  • Publication number: 20130015442
    Abstract: Methods of forming semiconductor structures include transferring a portion (116a) of a donor structure to a processed semiconductor structure (102) that includes at least one non-planar surface. An amorphous film (144) may be formed over at least one non-planar surface of the bonded semiconductor structure, and the amorphous film may be planarized to form one or more planarized surfaces. Semiconductor structures include a bonded semiconductor structure having at least one non-planar surface, and an amorphous film disposed over the at least one non-planar surface. The bonded semiconductor structure may include a processed semiconductor structure and a portion of a single crystal donor structure attached to a non-planar surface of the processed semiconductor structure.
    Type: Application
    Filed: February 22, 2011
    Publication date: January 17, 2013
    Applicant: SOITEC
    Inventors: Carlos Mazure, Bich-Yen Nguyen, Mariam Sadaka
  • Publication number: 20130001554
    Abstract: An example embodiment relates to a method of manufacturing an array of electric devices that includes attaching a platform including a micro-channel structure to a substrate. The method includes injecting first and second solutions into the micro-channel structure to form at least three liquid film columns, where the first and second solutions include different solvent composition ratios and the liquid columns each, respectfully, include different solvent composition ratios. The method further includes detaching the platform the substrate, removing solvent from the liquid film columns to form thin film columns, and treating the thin film columns under different conditions along a length direction of the thin film columns. The solvent is removed from the thin film columns and the thin film columns are treated under different conditions along a length direction of the thin film columns.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Applicants: The Board of Trustees of the Leland Stanford Junior University, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong Won Chung, Christopher J. Bettinger, Zhenan Bao, Do Hwan Kim, Bang Lin Lee, Jeong il Park, Yong Wan Jin, Sang Yoon Lee
  • Publication number: 20130001555
    Abstract: The present invention provides a method for manufacturing a semiconductor structure, comprising the steps of: depositing an interlayer dielectric layer (105) on a semiconductor substrate (101) to cover a source/drain region (102) and a gate stack on the semiconductor substrate (101); etching the interlayer dielectric layer and the source/drain region, so as to form a contact hole (110) extending into the source/drain region; conformally forming an amorphous layer (111) on an exposed part of the source/drain region; forming a metal silicide layer (113) on a surface of the amorphous layer (111); and filling the contact hole (110) with a contact metal (114). Correspondingly, the present invention further provides a semiconductor structure. The present invention etches the source/drain region so that the exposed part comprises the bottom and a sidewall, thereby expanding the contact area between the contact metal in the contact hole and the source/drain region, and reducing the contact resistance.
    Type: Application
    Filed: April 18, 2011
    Publication date: January 3, 2013
    Inventors: Haizhou Yin, Zhijiong Luo, Huilong Zhu
  • Patent number: 8344353
    Abstract: A light emitting diode having a transparent substrate and a method for manufacturing the same. The light emitting diode is formed by creating two semiconductor multilayers and bonding them. The first semiconductor multilayer is formed on a non-transparent substrate. The second semiconductor multilayer is created by forming an amorphous interface layer on a transparent substrate. The two semiconductor multilayers are bonded and the non-transparent substrate is removed, leaving a semiconductor multilayer with a transparent substrate.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: January 1, 2013
    Assignee: Epistar Corporation
    Inventors: Min-Hsun Hsieh, Kuen-Ru Chuang, Shu-Wen Sung, Chia-Cheng Liu, Chao-Nien Huang, Shane-Shyan Wey, Chih-Chiang Lu, Ming-Jiunn Jou
  • Patent number: 8338221
    Abstract: A method for manufacturing a thin film type solar cell is disclosed, which is capable of reducing degradation of solar cell by decreasing the number of dangling bonding sites or SiH2 bonding sites existing in amorphous silicon owing to an optimal content ratio of ingredient gases, an optimal chamber pressure, or an optimal substrate temperature during a process for depositing an I-type semiconductor layer of amorphous silicon by a plasma CVD method, the method comprising forming a front electrode layer on a substrate; sequentially depositing P-type, I-type, and N-type semiconductor layers on the front electrode layer; and forming a rear electrode layer on the N-type semiconductor layer, wherein the process for forming the I-type semiconductor layer comprises forming an amorphous silicon layer by the plasma CVD method under such circumstances that at least one of the aforementioned conditions is satisfied, for example, a content ratio of silicon-containing gas to hydrogen-containing gas is within a range betwe
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: December 25, 2012
    Assignee: Jusung Engineering Co., Ltd.
    Inventors: Chang Ho Lee, Hyung Dong Kang, Hyun Ho Lee, Yong Hyun Lee, Seon Myung Kim
  • Publication number: 20120313096
    Abstract: Provided are an oxide semiconductor composition, a preparation method thereof, an oxide semiconductor thin film using the composition, and a method of forming an electronic device. The oxide semiconductor composition includes a photosensitive material and an oxide semiconductor precursor.
    Type: Application
    Filed: January 4, 2012
    Publication date: December 13, 2012
    Applicant: Industry-Academics Cooperation Foundation, Yonsei University
    Inventors: Hyun Jae KIM, You Seung Rim, Hyun Soo Lim, Dong Lim Kim
  • Patent number: 8329500
    Abstract: Provided is a method of manufacturing a photovoltaic device using a Joule heating-induced crystallization method. The method includes: forming a first conductive pattern on a substrate; forming a photoelectric conversion layer on the substrate having the first conductive pattern; and crystallizing at least part of the photoelectric conversion layer by applying an electric field to the photoelectric conversion layer, wherein the photoelectric conversion layer includes a first amorphous semiconductor layer containing first impurities, a second intrinsic, amorphous semiconductor layer, and a third amorphous semiconductor layer containing second impurities.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: December 11, 2012
    Assignees: Samsung Display Co., Ltd., Samsung SDI Co., Ltd.
    Inventors: Byoung-Kyu Lee, Se-Jin Chung, Byoung-June Kim, Czang-Ho Lee, Myung-Hun Shin, Min-Seok Oh, Ku-Hyun Kang, Yuk-Hyun Nam, Seung-Jae Jung, Min Park, Mi-Hwa Lim, Joon-Young Seo
  • Publication number: 20120305876
    Abstract: A schottky diode, a resistive memory device including the schottky diode and a method of manufacturing the same. The resistive memory device includes a semiconductor substrate including a word line, a schottky diode formed on the word line, and a storage layer formed on the schottky diode. The schottky diode includes a first semiconductor layer, a conductive layer formed on the first semiconductor layer and having a lower work function than the first semiconductor layer, and a second semiconductor layer formed on the to conductive layer.
    Type: Application
    Filed: December 20, 2011
    Publication date: December 6, 2012
    Inventors: Seung Beom BAEK, Young Ho LEE, Jin Ku LEE, Mi Ri LEE
  • Patent number: 8324047
    Abstract: In a specific embodiment, the present invention provides an integrated circuit device. The device includes a base substrate having a surface region and an interlayer dielectric material overlying the surface region. The device also has a thickness of single crystal silicon material overlying the interlayer dielectric material. In one or more embodiments, the thickness of single crystal silicon material has a front region and a backside region. The front region faces the interlayer dielectric material. In a preferred embodiment, the device has a plurality of transistor devices spatially arranged in the thickness of silicon crystal silicon material. Each of the transistor devices has a gate structure within a region of the interlayer dielectric material. The device also has an enclosure housing configured to form a cavity between the backside region of the thickness of silicon material and an upper inside region of the enclosure housing.
    Type: Grant
    Filed: November 13, 2010
    Date of Patent: December 4, 2012
    Assignee: MCube Inc.
    Inventor: Xiao “Charles” Yang
  • Publication number: 20120286264
    Abstract: There is provided a method for manufacturing a flexible semiconductor device. The method of the present invention comprises the steps of: (a) preparing a metal foil having a concave portion; (b) forming a gate insulating film on a bottom face of the concave portion of the metal foil; (c) forming a semiconductor layer above the bottom face of the concave portion via the gate insulating film while making use of the concave portion as a bank member; and (d) forming a source electrode and a drain electrode such that they make contact with the semiconductor layer.
    Type: Application
    Filed: April 22, 2011
    Publication date: November 15, 2012
    Inventors: Takeshi Suzuki, Seiichi Nakatani, Koichi Hirano
  • Patent number: 8305311
    Abstract: An organic light emitting device according to one or more embodiments includes a gate line, a data line intersecting the gate line, a switching thin film transistor connected to the gate line and the data line, a driving thin film transistor connected to the switching thin film transistor, and a light emitting diode (LED) connected to the driving thin film transistor. The switching thin film transistor includes a control electrode connected to the gate line, a crystalline semiconductor overlapping the control electrode, and an input electrode and an output electrode are spaced apart from each other on the crystalline semiconductor, wherein the control electrode and the gate line are respectively disposed under and on the crystalline semiconductor and include different materials.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: November 6, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joon-Hoo Choi, Kyu-Sik Cho
  • Publication number: 20120273784
    Abstract: A transfer layer includes a transparent substrate. A buffer layer is formed on the transparent substrate that comprises PbO, GaN, PbTiO3, La0.5Sr0.5CoO3 (LSCO), or LaxPb1-xCoO3 (LPCO) so that separation between the buffer layer and the transparent substrate occurs at substantially high temperatures.
    Type: Application
    Filed: June 27, 2012
    Publication date: November 1, 2012
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Il-Doo Kim, Harry L. Tuller, Yong Woo Choi, Akintunde I. Akinwande
  • Patent number: 8299583
    Abstract: Deep via trenches and deep marker trenches are formed in a bulk substrate and filled with a conductive material to form deep conductive vias and deep marker vias. At least one first semiconductor device is formed on the first surface of the bulk substrate. A disposable dielectric capping layer and a disposable material layer are formed over the first surface of the bulk substrate. The second surface, located on the opposite side of the first surface, of the bulk substrate is polished to expose and planarize the deep conductive vias and deep marker vias, which become through-substrate vias and through-substrate alignment markers, respectively. At least one second semiconductor device and second metal interconnect structures are formed on the second surface of the bulk substrate. The disposable material layer and the disposable dielectric capping layer are removed and first metal interconnect structures are formed on the first surface.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: October 30, 2012
    Assignee: International Business Machines Corporation
    Inventor: Huilong Zhu
  • Publication number: 20120267632
    Abstract: Methods, devices, and systems are provided for a select device that can include a semiconductive stack of at least one semiconductive material formed on a first electrode, where the semiconductive stack can have a thickness of about 700 angstroms (?) or less. Each of the at least one semiconductive material can have an associated band gap of about 4 electron volts (eV) or less and a second electrode can be formed on the semiconductive stack.
    Type: Application
    Filed: April 19, 2011
    Publication date: October 25, 2012
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: D.V. Nirmal Ramaswamy, Gurtej S. Sandhu
  • Patent number: 8284339
    Abstract: A column for defining the interval between a TFT substrate and an opposed substrate is formed at a crossing point between a drain line and a scanning line. At the crossing point where the column is formed, the drain line is formed to have a wider width to prevent light leakage. Further, at the crossing point where the column is formed, the scanning line is formed to have a narrower width to prevent increase of capacitance between the drain line and the scanning line. The column is formed at a crossing point corresponding to a specific color, e.g., a blue pixel B, so that a difference in transmittance and in characteristic of thin film transistors due to formation of the column is initially compensated.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: October 9, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Takahiro Ochiai, Tohru Sasaki, Tetsuya Nagata
  • Patent number: 8283669
    Abstract: An object is to reduce the adverse influence which a portion of a gate insulating layer where the thickness has decreased, that is, a step portion, has on semiconductor element characteristics so that the reliability of the semiconductor element is improved. A semiconductor layer is formed over an insulating surface; a side surface of the semiconductor layer is oxidized using wet oxidation to form a first insulating layer; a second insulating layer is formed over the semiconductor layer and the first insulating layer; and a gate electrode is formed over the semiconductor layer and the first insulating layer with the second insulating layer interposed therebetween.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: October 9, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hideto Ohnuma
  • Patent number: 8278659
    Abstract: Methods for processing an amorphous silicon thin film sample into a polycrystalline silicon thin film are disclosed.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: October 2, 2012
    Assignee: The Trustees of Columbia University in the city of New York
    Inventors: James S. Im, Robert S. Sposili, Mark A. Crowder
  • Publication number: 20120241742
    Abstract: A semiconductor component includes a thinned semiconductor substrate having a back side and a circuit side containing integrated circuits and associated circuitry. The semiconductor component also includes at least one lasered feature on the back side configured to provide selected electrical or physical characteristics for the substrate. The lasered feature can cover the entire back side or only selected areas of the back side, and can be configured to change electrical properties, mechanical properties or gettering properties of the substrate.
    Type: Application
    Filed: May 17, 2012
    Publication date: September 27, 2012
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Alan G. Wood, Tim Corbett
  • Publication number: 20120235119
    Abstract: Techniques for forming a thin coating of a material on a carbon-based material are provided. In one aspect, a method for forming a thin coating on a surface of a carbon-based material is provided. The method includes the following steps. An ultra thin silicon nucleation layer is deposited to a thickness of from about two angstroms to about 10 angstroms on at least a portion of the surface of the carbon-based material to facilitate nucleation of the coating on the surface of the carbon-based material. The thin coating is deposited to a thickness of from about two angstroms to about 100 angstroms over the ultra thin silicon layer to form the thin coating on the surface of the carbon-based material.
    Type: Application
    Filed: May 29, 2012
    Publication date: September 20, 2012
    Applicant: International Business Machines Corporation
    Inventors: Katherina Babich, Alessandro Callegari, Zhihong Chen, Edward Kiewra, Yanning Sun
  • Publication number: 20120228612
    Abstract: A composite base of the present invention includes a sintered base and a base surface flattening layer disposed on the sintered base, and the base surface flattening layer has a surface RMS roughness of not more than 1.0 nm. A composite substrate of the present invention includes the composite base and a semiconductor crystal layer disposed on a side of the composite base where the base surface flattening layer is located, and a difference between a thermal expansion coefficient of the sintered base and a thermal expansion coefficient of the semiconductor crystal layer is not more than 4.5×10?6K?1. Thereby, a composite substrate in which a semiconductor crystal layer is attached to a sintered base, and a composite base suitably used for that composite substrate are provided.
    Type: Application
    Filed: May 13, 2011
    Publication date: September 13, 2012
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yuki Seki, Issei Satoh, Koji Uematsu, Yoshiyuki Yamamoto
  • Publication number: 20120228614
    Abstract: According to one embodiment, a semiconductor device is disclosed. The device includes a semiconductor substrate, and an interconnection above the semiconductor substrate. The interconnection includes a co-catalyst layer, a catalyst layer on the co-catalyst layer, and a graphene layer on the catalyst layer. The co-catalyst layer includes a portion contacting the catalyst layer. The portion has a face-centered cubic structure with a (111) plane oriented parallel to a surface of the semiconductor substrate. The catalyst layer has a face-centered cubic structure with a (111) plane oriented parallel to the surface of the semiconductor substrate.
    Type: Application
    Filed: March 7, 2012
    Publication date: September 13, 2012
    Inventors: Masayuki Kitamura, Makoto Wada, Yuichi Yamazaki, Masayuki Katagiri, Atsuko Sakata, Akihiro Kajita, Tadashi Sakai, Naoshi Sakuma, Ichiro Mizushima
  • Publication number: 20120228613
    Abstract: A method of manufacturing a semiconductor wafer of the present invention includes the steps of: obtaining a composite base by forming a base surface flattening layer having a surface RMS roughness of not more than 1.0 nm on a base; obtaining a composite substrate by attaching a semiconductor crystal layer to a side of the composite base where the base surface flattening layer is located; growing at least one semiconductor layer on the semiconductor crystal layer of the composite substrate; and obtaining the semiconductor wafer including the semiconductor crystal layer and the semiconductor layer by removing the base surface flattening layer by wet etching and thereby separating the semiconductor crystal layer from the base.
    Type: Application
    Filed: May 13, 2011
    Publication date: September 13, 2012
    Applicant: SUMITOMO ELECTRIC INDUSTIRES, LTD.
    Inventors: Yuki SEKI, Issei Satoh, Koji Uematsu, Yoshiyuki Yamamoto
  • Publication number: 20120222732
    Abstract: A stacked structure may include semiconductors or semiconductor layers grown on an amorphous substrate. A light-emitting device and a solar cell may include the stacked structure including the semiconductors grown on the amorphous substrate. A method of manufacturing the stacked structure, and the light-emitting device and the solar cell including the stacked structure may involve growing a crystalline semiconductor layer on an amorphous substrate.
    Type: Application
    Filed: September 25, 2011
    Publication date: September 6, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Jun-hee CHOI
  • Publication number: 20120211748
    Abstract: A method of dicing a semiconductor wafer includes forming a layer stack on a first main surface of a substrate. The layer stack and a portion of the substrate are etched according to a pattern defining an intended dicing location to obtain a trench structure. The substrate is irradiated with a laser beam to locally modify the substrate between a bottom of the trench structure and a second main surface of the substrate opposite to the first main surface.
    Type: Application
    Filed: February 17, 2011
    Publication date: August 23, 2012
    Applicant: Infineon Technologies AG
    Inventors: Giuseppe Miccoli, Adolf Koller, Jayachandran Bhaskaran
  • Patent number: 8247813
    Abstract: One embodiment of the present invention provides a highly reliably display device in which a high mobility is achieved in an oxide semiconductor. A first oxide component is formed over a base component. Crystal growth proceeds from a surface toward an inside of the first oxide component by a first heat treatment, so that a first oxide crystal component is formed in contact with at least part of the base component. A second oxide component is formed over the first oxide crystal component. Crystal growth is performed by a second heat treatment using the first oxide crystal component as a seed, so that a second oxide crystal component is formed. Thus, a stacked oxide material is formed. A transistor with a high mobility is formed using the stacked oxide material and a driver circuit is formed using the transistor.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: August 21, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Jun Koyama, Shunpei Yamazaki
  • Publication number: 20120205654
    Abstract: The invention relates to a formulation which contains at least one silane and at least one carbon polymer in a solvent, and to the production of a silicon layer on a substrate which is coated with such a formulation.
    Type: Application
    Filed: October 18, 2010
    Publication date: August 16, 2012
    Applicant: Enonik Degussa GmbH
    Inventors: Bernhard Stuetzel, Matthias Patz
  • Publication number: 20120199832
    Abstract: The present invention relates to a process for producing a doped silicon layer on a substrate, comprising the steps of (a) providing a liquid silane formulation and a substrate, (b) applying the liquid silane formulation to the substrate, (c) introducing electromagnetic and/or thermal energy to obtain an at least partly polymorphic silicon layer, (d) providing a liquid formulation which comprises at least one aluminium-containing metal complex, (e) applying this formulation to the silicon layer obtained after step (c) and then (f) heating the coating obtained after step (e) by introducing electromagnetic and/or thermal energy, which decomposes the formulation obtained after step (d) at least to metal and hydrogen, and then (g) cooling the coating obtained after step (f) to obtain an Al-doped or Al- and metal-doped silicon layer, to doped silicon layers obtainable by the process and to the use thereof for production of light-sensitive elements and electronic components.
    Type: Application
    Filed: November 10, 2010
    Publication date: August 9, 2012
    Applicant: Evonik Degussa GmbH
    Inventors: Bernhard Stuetzel, Wolfgang Fahrner
  • Patent number: 8236603
    Abstract: A semiconductor structure may include a polycrystalline substrate comprising a metal, the polycrystalline substrate having substantially randomly oriented grains, as well as a buffer layer disposed thereover. The buffer layer may comprise a plurality of islands having an average island spacing therebetween. A polycrystalline semiconductor layer is disposed over the buffer layer.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: August 7, 2012
    Assignees: Solexant Corp., Rochester Institute of Technology
    Inventors: Leslie G. Fritzemeier, Ryne P. Raffaelle, Christopher Leitz
  • Patent number: 8237161
    Abstract: Amorphous semiconductor films with enhanced charged carrier transport are disclosed. Also disclosed is a method for fabricating and treating the film to produce the enhanced transport. Also disclosed are semiconductor p-n junctions fabricated with the films which demonstrate the enhanced transport. The films are amorphous and include boron, carbon, and hydrogen.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: August 7, 2012
    Assignee: North Dakota State University Research Foundation
    Inventors: Anthony N. Caruso, Joseph A. Sandstrom, David A. Bunzow
  • Publication number: 20120174972
    Abstract: A transparent conductive film includes indium oxide containing hydrogen and cerium and having a substantially polycrystalline structure, in which specific resistance of the transparent conductive film is no greater than 3.4×10?4?·cm and the carrier mobility is no less than 70 cm2/Vs.
    Type: Application
    Filed: March 15, 2012
    Publication date: July 12, 2012
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventor: Daisuke FUJISHIMA
  • Publication number: 20120168753
    Abstract: In a nitride semiconductor light emitting diode including a substrate made of a nitride semiconductor, a first conductive-type nitride semiconductor layer formed on the substrate, an active layer made of a nitride semiconductor, and a second conductive-type nitride semiconductor layer, characterized in that light emitted is extracted from the under surface side of the substrate or the upper surface side of the second conductive-type nitride semiconductor layer, an intermediate layer is formed between the substrate and the active layer, and dislocations is allowed to generates from the dislocation generating layer as the origin and to distribute in a light emitting region of the active layer.
    Type: Application
    Filed: June 23, 2010
    Publication date: July 5, 2012
    Applicant: NICHIA CORPORATION
    Inventor: Daisuke Sanga
  • Patent number: 8212252
    Abstract: An object of the present invention is to provide a new light-emitting device with the use of an amorphous oxide. The light-emitting device has a light-emitting layer existing between first and second electrodes and a field effect transistor, of which the active layer is an amorphous.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: July 3, 2012
    Assignees: Canon Kabushiki Kaisha, Tokyo Institute of Technology
    Inventors: Tohru Den, Tatsuya Iwasaki, Hideo Hosono, Toshio Kamiya, Kenji Nomura
  • Patent number: 8212249
    Abstract: Various structures that include at least one thin layer of an amorphous material on a supporting substrate. One structure generally has a receiving substrate, a central crystalline layer and an amorphous layer, all of which may lack any end of range point defects. Another structure includes an intermediate substrate having an upper face, an upper portion and a lower portion, an amorphous layer that does not contain end of range point defects, and a first crystalline layer containing end of range point defects subjacent the amorphous layer and located in the lower portion; and a supporting substrate bonded to the upper face of the intermediate substrate. That structure can also contain a weakened zone or porous layer to facilitate removal of the first crystalline layer to provide the amorphous layer as an upper layer of the semiconductor structure.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: July 3, 2012
    Assignee: Soitec
    Inventor: Xavier Hebras
  • Patent number: 8207008
    Abstract: A solar device is provided, comprising a substrate structure having a surface region, a flexible and conformal material comprising a polymer material affixing the surface region, and one or more solar cells spatially provided by one or more films of materials characterized by a thickness dimension of 25 microns and less and mechanically coupled to the flexible and conformal material. The one or more solar cells have a flexible characteristic. The flexible characteristic maintains each of the solar cells substantially free from any damage or breakage thereto when the one or more films of materials is subjected to bending.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: June 26, 2012
    Assignee: Stion Corporation
    Inventor: Chester A. Farris, III