With Specified Impurity Concentration Gradient Patents (Class 257/655)
  • Patent number: 8134224
    Abstract: A semiconductor device receiving as input a radio frequency signal having a frequency of 500 MHz or more and a power of 20 dBm or more is provided. The semiconductor device includes: a silicon substrate; a silicon oxide film formed on the silicon substrate; a radio frequency interconnect provided on the silicon oxide film and passing the radio frequency signal; a fixed potential interconnect provided on the silicon oxide film and placed at a fixed potential; and an acceptor-doped layer. The acceptor-doped layer is formed in a region of the silicon substrate. The region is in contact with the silicon oxide film. The acceptor-doped layer is doped with acceptors.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: March 13, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshitomo Sagae, Fumio Sasaki, Ryoichi Ohara
  • Publication number: 20120056304
    Abstract: A wafer, a fabricating method of the same, and a semiconductor substrate are provided. The wafer includes a first substrate layer formed at a first surface, a second substrate layer formed at a second surface opposite to the first surface, the second substrate layer having a greater oxygen concentration than the first substrate layer, and an oxygen diffusion protecting layer formed between the first substrate layer and the second substrate layer, the oxygen diffusion protecting layer being located closer to the first surface than to the second surface.
    Type: Application
    Filed: July 8, 2011
    Publication date: March 8, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sun-Ha Hwang, Young-Soo Park, Sam-Jong Choi, Joon-Young Choi, Tae-Hyoung Koo
  • Patent number: 8120058
    Abstract: A method of forming a semiconductor device having an asymmetrical source and drain. In one embodiment, the method includes forming a gate structure on a first portion of the substrate having a well of a first conductivity. A source region of a second conductivity and drain region of the second conductivity is formed within the well of the first conductivity in a portion of the substrate that is adjacent to the first portion of the substrate on which the gate structure is present. A doped region of a second conductivity is formed within the drain region to provide an integrated bipolar transistor on a drain side of the semiconductor device, in which a collector is provided by the well of the first conductivity, the base is provided by the drain region of the second conductivity and the emitter is provided by the doped region of the second conductivity that is present in the drain region. A semiconductor device formed by the above-described method is also provided.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: February 21, 2012
    Assignee: International Business Machines Corporation
    Inventors: Jae-Eun Park, Xinlin Wang, Xiangdong Chen
  • Publication number: 20120032305
    Abstract: A semiconductor device and a manufacturing method thereof is disclosed in which the semiconductor device includes a p-type anode layer formed by a transition metal acceptor transition, and the manufacturing process is significantly simplified without the breakdown voltage characteristics deteriorating. An inversion advancement region inverted to a p-type by a transition metal acceptor transition, and in which the acceptor transition is advanced by point defect layers, is formed on the upper surface of an n-type drift layer. The inversion advancement region configures a p-type anode layer of a semiconductor device of the invention. The transition metal is, for example, platinum or gold. An n-type semiconductor substrate with a concentration higher than that of the n-type drift layer is adjacent to the lower surface of the n-type drift layer.
    Type: Application
    Filed: August 4, 2011
    Publication date: February 9, 2012
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventor: Shoji KITAMURA
  • Patent number: 8110897
    Abstract: The semiconductor device of the present invention includes: a gate insulating film formed on a semiconductor region of a first conductivity type; a gate electrode formed on the gate insulating film; and a channel doped layer of the first conductivity type formed in the semiconductor region beneath the gate electrode. The channel doped layer contains carbon as an impurity.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: February 7, 2012
    Assignee: Panasonic Corporation
    Inventor: Taiji Noda
  • Patent number: 8106472
    Abstract: The pixel for use in an image sensor comprises a low-doped semiconductor substrate (A). On the substrate (A), an arrangement of a plurality of floating areas, e.g., floating gates (FG2-FG6), is provided. Neighboring floating gates are electrically isolated from each other yet capacitively coupled to each other. By applying a voltage (V2?V1) to two contact areas (FG1, FG7), a lateral steplike electric field is generated. Photogenerated charge carriers move along the electric-field lines to the point of highest potential energy, where a floating diffusion (D) accumulate the photocharges. The charges accumulated in the various pixels are sequentially read out with a suitable circuit known from image-sensor literature, such as a source follower or a charge amplifier with row and column select mechanisms. The pixel of offers at the same time a large sensing area, a high photocharge-detection sensitivity and a high response speed, without any static current consumption.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: January 31, 2012
    Assignee: MESA Imaging AG
    Inventors: Rolf Kaufmann, Michael Lehmann, Peter Seitz
  • Publication number: 20120018856
    Abstract: Disclosed is a method of forming a semiconductor device with drift regions of a first doping type and compensation regions of a second doping type, and a semiconductor device with drift regions of a first doping type and compensation regions of a second doping type.
    Type: Application
    Filed: July 23, 2010
    Publication date: January 26, 2012
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Joachim Weyers, Armin Willmeroth, Anton Mauder, Franz Hirler
  • Publication number: 20110316128
    Abstract: Semiconductor wafers of silicon are produced by pulling a single crystal growing on a phase boundary from a melt contained in a crucible and cutting of semiconductor wafers therefrom, wherein during pulling of the single crystal, heat is delivered to a center of the phase boundary and a radial profile of a ratio V/G from the center to an edge of the phase boundary is controlled, G being the temperature gradient perpendicular to the phase boundary and V being the pull rate. The radial profile of the ratio V/G is controlled so that the effect of thermomechanical stress in the single crystal adjoining the phase boundary, is compensated with respect to creation of intrinsic point defects. The invention also relates to defect-free semiconductor wafers of silicon, which can be produced economically by this method.
    Type: Application
    Filed: September 6, 2011
    Publication date: December 29, 2011
    Applicant: SILTRONIC AG
    Inventors: Andreas Sattler, Wilfried von Ammon, Martin Weber, Walter Haeckl, Herbert Schmidt
  • Publication number: 20110298100
    Abstract: Disclosed are a semiconductor device producing method and a semiconductor device. The semiconductor device producing method is comprised of a step of forming a diffusion suppressing mask composed of at least two of a thick film portion, an opening portion, and a thin film portion, on a surface of a semiconductor substrate; a step of applying dopant diffusing agents containing dopants to the entirety of a surface of the diffusion suppression mask; and a step of diffusing the dopants obtained from the dopant diffusing agents onto the surface of the semiconductor substrate. In the semiconductor device, a high concentration first conductive dopant diffusion layer, a high concentration second conductive dopant diffusion layer, a low concentration first conductive dopant diffusion layer, and a low concentration second conducive dopant diffusion layer are provided on one of the surfaces of the semiconductor substrate.
    Type: Application
    Filed: January 25, 2010
    Publication date: December 8, 2011
    Inventor: Kyotaro Nakamura
  • Patent number: 8063406
    Abstract: Various illustrative embodiments of methods for manufacturing a semiconductor device are described. These methods may include, for example, forming a first polysilicon layer above a substrate, wherein the first polysilicon layer comprises a doped portion, and forming a second polysilicon layer over a surface of the first polysilicon layer. Also, various illustrative embodiments of semiconductor devices are described that may be manufactured such as by the various methods described herein.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: November 22, 2011
    Assignee: Infineon Technologies AG
    Inventors: Haoren Zhuang, Matthias Lipinski, Jingyu Lian, Chandrasekhar Sarma
  • Publication number: 20110278702
    Abstract: A method for producing a dopant profile is provided. The method includes starting from a surface of a wafer-shaped semiconductor component by introducing dopant atoms into the semiconductor component. The dopant-containing layer is produced on or in a region of the surface in order to produce a provisional first dopant profile and then a plurality of semiconductor components having a corresponding layer is subjected to heat treatment on top of one another in the form of a stack in order to produce a second dopant profile having a greater depth in comparison to the first dopant profile.
    Type: Application
    Filed: December 3, 2009
    Publication date: November 17, 2011
    Inventors: Joerg Horzel, Dieter Franke, Gabriele Blendin, Marco Faber, Wilfried Schmidt
  • Patent number: 8049255
    Abstract: A semiconductor device includes an insulating substrate and a TFT element disposed on the substrate. The TFT element includes a gate electrode, a gate insulating film, a semiconductor layer, and a source electrode and a drain electrode arranged in that order on the insulating substrate. The semiconductor layer includes an active layer composed of polycrystalline semiconductor and a contact layer segment interposed between the active layer and the source electrode and another contact layer segment interposed between the active layer and the drain electrode. The source and drain electrodes each have a first face facing the opposite face of the active layer from the interface with the gate insulating layer and a second face facing an etched side face of the active layer. Each contact layer segment is disposed between the active layer and each of the first and second faces of the source or drain electrode.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: November 1, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Takeshi Sakai, Toshio Miyazawa, Takuo Kaitoh, Hidekazu Miyake
  • Patent number: 8049278
    Abstract: An ESD device includes a low doped well connected to a first contact and a diffusion area connected to a second contact. A substrate between the low doped well and the diffusion area has a dopant polarity that is opposite a dopant polarity of the low doped well and the diffusion area. A distance between the low doped well and the diffusion area determines a triggering voltage of the ESD device. A depletion region is formed between the low doped well and the substrate when a reverse bias voltage is applied to the ESD device. A current discharging path is formed between the first contact and the second contact when the depletion region comes in to contact with the diffusion area. The substrate is biased by a connection to the second contact. Alternatively, an additional diffusion area with the same dopant polarity, connected to a third contact, biases the substrate.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: November 1, 2011
    Assignee: Broadcom Corporation
    Inventor: Agnes Neves Woo
  • Patent number: 8030740
    Abstract: A microelectronic structure including a layerstack is provided, the layerstack including: (a) a first layer including semiconductor material that is very heavily n-doped before being annealed, having a first-layer before-anneal dopant concentration, the first layer being between about 50 and 200 angstroms thick, wherein the first layer is above a substrate, and wherein the first layer is heavily n-doped after being annealed, having a first-layer after-anneal dopant concentration, the first-layer before-anneal dopant concentration exceeding the first-layer after-anneal concentration; (b) a second layer including semiconductor material that is not heavily doped before being annealed, having a second-layer before-anneal dopant concentration, the second layer being about as thick as the first layer, wherein the second layer is above and in contact with the first layer, and wherein the second layer includes heavily n-doped semiconductor material after being annealed, having a second-layer after-anneal dopant conce
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: October 4, 2011
    Assignee: SanDisk 3D LLC
    Inventor: S. Brad Herner
  • Patent number: 7992108
    Abstract: First and second evaluation substrates are prepared, a direction perpendicular to a surface of the first evaluation substrate being defined by first indices, and the direction defined by the first indices being inclined from a normal direction of a surface of the second evaluation substrate. Ion implantation is performed for the first evaluation substrate in a vertical direction. Ion implantation is performed for the second evaluation substrate by using an ion beam parallel to the direction defined by the first indices. Impurity concentration distributions in a depth direction of the first and second evaluation substrates are measured. A first impurity concentration distribution on an extension line of an ion beam and a second impurity concentration distribution in a direction perpendicular to the extension line are predicted from the measured impurity concentration distributions of the first and second evaluation substrates.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: August 2, 2011
    Assignee: Fujitsu Limited
    Inventor: Kunihiro Suzuki
  • Publication number: 20110140246
    Abstract: Systems and methods for producing high quantum efficiency silicon devices. A silicon MBE has a preparation chamber that provides for cleaning silicon surfaces using an oxygen plasma to remove impurities and a gaseous (dry) NH3+NF3 room temperature oxide removal process that leaves the silicon surface hydrogen terminated. Silicon wafers up to 8 inches in diameter have devices that can be fabricated using the cleaning procedures and MBE processing, including delta doping.
    Type: Application
    Filed: December 10, 2010
    Publication date: June 16, 2011
    Applicant: California Institute of Technology
    Inventors: Michael E. Hoenk, Shouleh Nikzad, Todd J. Jones, Frank Greer, Alexander G. Carver
  • Publication number: 20110133314
    Abstract: A method for producing a semiconductor wafer includes pulling a single crystal of semiconductor material, slicing a semiconductor wafer from the single crystal and polishing the semiconductor wafer with the polishing pad and polishing agent. The polishing agent is free of solid materials having abrasive action and the polishing pad contains fixedly bonded solid materials with abrasive action. During polishing the polishing agent is supplied in a gap between the semiconductor wafer and polishing pad. The polishing agent has a pH value in a range of 9.5 to 12.5.
    Type: Application
    Filed: November 4, 2010
    Publication date: June 9, 2011
    Applicant: SILTRONIC AG
    Inventors: Georg Pietsch, Walter Haeckl, Juergen Schwandner, Noemi Banos
  • Publication number: 20110121437
    Abstract: A semiconductor device includes a drift zone of a first conductivity type formed within a semiconductor body, wherein one side of opposing sides of the drift zone adjoins a first zone within the semiconductor body and the other side adjoins a second zone within the semiconductor body. First semiconductor subzones of a second conductivity type different from the first conductivity type are formed within each of the first and second zones opposing each other along a lateral direction extending parallel to a surface of the semiconductor body. A second semiconductor subzone is formed within each of the first and second zones and between the first semiconductor subzones along the lateral direction. An average concentration of dopants within the second semiconductor subzone along 10% to 90% of an extension of the second semiconductor subzone along a vertical direction perpendicular to the surface is smaller than the average concentration of dopants along a corresponding section of extension within the drift zone.
    Type: Application
    Filed: November 25, 2009
    Publication date: May 26, 2011
    Applicant: Infineon Technologies Austria AG
    Inventors: Hans Weber, Gerald Deboy
  • Patent number: 7943405
    Abstract: A liquid crystal display panel and a fabricating method thereof comprising an image sensing capability, image scanning, and touch inputting. In the liquid crystal display device, a gate line and a data line are formed to intersect each other on a substrate to define a pixel area in which a pixel electrode is positioned. A first thin film transistor is positioned at an intersection area of the gate line and the data line. A sensor thin film transistor senses light having image information and supplied with a first driving voltage from the data line. A driving voltage supply line is positioned in parallel to the gate line to supply a second driving voltage to the sensor thin film transistor.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: May 17, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Hee Kwang Kang, Kyo Seop Choo
  • Publication number: 20110101501
    Abstract: A semiconductor device includes first semiconductor zones of a first conductivity type having a first dopant species of the first conductivity type and a second dopant species of a second conductivity type different from the first conductivity type. The semiconductor device also includes second semiconductor zones of the second conductivity type including the second dopant species. The first and second semiconductor zones are alternately arranged in contact with each other along a lateral direction extending in parallel to a surface of a semiconductor body. One of the first and second semiconductor zones constitute drift zones and a diffusion coefficient of the second dopant species is at least twice as large as the diffusion coefficient of the first dopant species. A concentration profile of the first dopant species along a vertical direction perpendicular to the surface of the semiconductor body includes at least two maxima.
    Type: Application
    Filed: October 29, 2009
    Publication date: May 5, 2011
    Applicant: INFINEON TECHNOLOGIES AG
    Inventor: Hans-Joachim Schulze
  • Patent number: 7936051
    Abstract: A silicon wafer which achieves a gettering effect without occurrence of slip dislocations is provided, and the silicon wafer is subject to heat treatment after slicing from a silicon monocrystal ingot so that a layer which has zero light scattering defects according to the 90° light scattering method is formed in a region at a depth from the wafer surface of 25 ?m or more but less than 100 ?m, and a layer which has a light scattering defect density of 1×108/cm3 or more according to the 90° light scattering method is formed in a region at a depth of 100 ?m from the wafer surface.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: May 3, 2011
    Assignee: Sumco Corporation
    Inventors: Toshiaki Ono, Masataka Hourai
  • Publication number: 20110068440
    Abstract: A method of manufacturing a semiconductor device includes providing a semiconductor wafer and forming at least one first trench in the wafer having first and second sidewalls and a first orientation on the wafer. The first sidewall of the at least one first trench is implanted with a dopant of a first conductivity at a first implantation direction. The first sidewall of the at least one first trench is implanted with the dopant of the first conductivity at a second implantation direction. The second implantation direction is orthogonal to the first implantation direction. The first and second implantation directions are non-orthogonal to the first sidewall.
    Type: Application
    Filed: October 28, 2010
    Publication date: March 24, 2011
    Applicant: Icemos Technology Ltd.
    Inventors: Takeshi Ishiguro, Hugh J. Griffin, Kenji Sugiura
  • Publication number: 20110049682
    Abstract: Systems and methods for substrate wafer back side and edge cross section seals. In accordance with a first method embodiment, a silicon wafer of a first conductivity type is accessed. An epitaxial layer of the first conductivity type is grown on a front surface of the silicon wafer. The epitaxial layer is implanted to form a region of an opposite conductivity type. The growing and implanting are repeated to form a vertical column of the opposite conductivity type. The wafer may also be implanted to form a region of the opposite conductivity type vertically aligned with the vertical column.
    Type: Application
    Filed: August 31, 2010
    Publication date: March 3, 2011
    Applicant: VISHAY-SILICONIX
    Inventors: Hamilton Lu, The-Tu Chau, Kyle Terrill, Deva N. Pattanayak, Sharon Shi, Kuo-In Chen, Robert Xu
  • Publication number: 20110042791
    Abstract: A method for treating an oxygen-containing semiconductor wafer, and semiconductor component. One embodiment provides a first side, a second side opposite the first side. A first semiconductor region adjoins the first side. A second semiconductor region adjoins the second side. The second side of the wafer is irridated such that lattice vacancies arise in the second semiconductor region. A first thermal process is carried out the duration of which is chosen such that oxygen agglomerates form in the second semiconductor region and that lattice vacancies diffuse from the first semiconductor region into the second semiconductor region.
    Type: Application
    Filed: January 19, 2007
    Publication date: February 24, 2011
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Hans-Joachim Schulze, Helmut Strack, Anton Mauder
  • Patent number: 7880272
    Abstract: Aspects of the present invention include a semiconductor device and method. In a transition region of a semiconductor material region, a near-surface compensation doping area with a conductivity type, which is different than the conductivity type of a transition doping area of the semiconductor material region, is provided in the surface region of the semiconductor material region. The doping of the near-surface compensation doping area of the semiconductor device at least partially compensates for the doping in the transition doping area.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: February 1, 2011
    Assignee: Infineon Technologies AG
    Inventor: Gerhard Schmidt
  • Patent number: 7875961
    Abstract: A semiconductor substrate, of GaAs with a semiconductor layer sequence applied on top of the substrate. The semiconductor layer sequence comprises a plurality of semiconductor layers of Al1-yGayAs1-xPx with 0?x?1 and 0?y?1. A number of the semiconductor layers respectively comprising a phosphorus component x which is greater than in a neighboring semiconductor layer lying thereunder in the direction of growth of the semiconductor layer sequence. Two semiconductor layers directly preceding the uppermost semiconductor layer of the semiconductor layer sequence have a smaller lattice constant than the uppermost layer.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: January 25, 2011
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Norbert Linder, Günther Grönninger, Peter Heidborn, Klaus Streubel, Siegmar Kugler
  • Publication number: 20100308446
    Abstract: The first layer is located on the first electrode and has the first conductivity type. The second layer is located on the first layer and has the second conductivity type. The third layer is located on the second layer. The second electrode is located on the third layer. The fourth layer is located between the second layer and the third layer, and has the second conductivity type. The third layer includes the first portion and the second portion. The first portion has the second conductivity type and has a peak value of an impurity concentration higher than the peak value of the impurity concentration in the second layer. The second portion has the first conductivity type. The area of the second portion accounts for not less than 20% and not more than 95% of the total area of the first portion and the second portion.
    Type: Application
    Filed: March 3, 2010
    Publication date: December 9, 2010
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Katsumi NAKAMURA
  • Publication number: 20100295159
    Abstract: The present invention provides a method (80) for manufacturing a semiconductor tip. The method comprises obtaining (81) a substrate provided with a layer of tip material, providing (82) a doping profile in the layer of tip material, the doping profile comprising a tapered-shaped region of a first dopant concentration, undoped or lightly doped, e.g. having a dopant concentration of 1017 cm?3 or lower, surrounded by a region of a second dopant concentration, highly doped, e.g. having a dopant concentration above 1017 cm?3 , the first dopant concentration being lower than the second dopant concentration, and isotropically etching (83) the layer of tip material by using an etch chemistry for which the etch rate of tip material with the second dopant concentration is substantially higher than the etch rate of the tip material with the first dopant concentration.
    Type: Application
    Filed: August 29, 2008
    Publication date: November 25, 2010
    Applicant: IMEC
    Inventor: Simone Severi
  • Patent number: 7838969
    Abstract: A diode is disclosed. One embodiment provides a semiconductor body having a front and a back, opposite the front in a vertical direction of the semiconductor body. The semiconductor body contains, successively in the vertical direction from the back to the front, a heavily n-doped zone, a weakly n-doped zone, a weakly p-doped zone and a heavily p-doped zone. In the vertical direction, the weakly p-doped zone has a thickness of at least 25% and at most 50% of the thickness of the semiconductor body.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: November 23, 2010
    Assignee: Infineon Technologies AG
    Inventors: Hans-Joachim Schulze, Franz-Josef Niedernostheide, Reiner Barthelmess
  • Patent number: 7834383
    Abstract: A pixel including a substrate of a first conductivity type and having a surface, a photodetector of a second conductivity type that is opposite the first conductivity type, a floating diffusion region of the second conductivity type, a transfer region between the photodetector and the floating diffusion, a gate positioned above the transfer region and partially overlapping the photodetector, and a pinning layer of the first conductivity type extending at least across the photodetector from the gate.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: November 16, 2010
    Assignee: Aptina Imaging Corporation
    Inventors: Chintamani P. Palsule, Changhoon Choi, Fredrick P. LaMaster, John H. Stanback, Thomas E. Dungan, Thomas Joy, Homayoon Haddad
  • Publication number: 20100276785
    Abstract: A system and method for variable doping within a semiconductor structure for improved efficiency is described. One embodiment includes a semiconductor structure comprising a first semiconductor layer comprising a first semiconductor material, and a second semiconductor layer comprising a second semiconductor material, wherein the second semiconductor material is an oppositely-typed semiconductor material from the first semiconductor material, and wherein the second semiconductor layer comprises a first region adjacent to the first semiconductor layer, wherein the first region comprises low-doped second semiconductor material, and a second region adjacent to the first region, wherein the second region comprises highly-doped second semiconductor material to increase a built-in potential of the semiconductor structure.
    Type: Application
    Filed: April 30, 2009
    Publication date: November 4, 2010
    Inventors: Kishore Kamath, Alan R. DAVIES, Anders OLSSON
  • Patent number: 7808174
    Abstract: A light-emitting diode (1) has a first electrode (3), a second electrode (4), a light-emitting layer (5) which comprises a matrix, and ions. A layer (6) of a cation receptor (CR) is positioned adjacent to the first electrode (3), has captured cations, and has generated immobilized cations (+). A layer (7) of an anion receptor (AR) is positioned adjacent to the second electrode (4), has captured anions, and has generated immobilized anions (?). The ion gradients provide for quick response in emission of light (L) when the diode (1) is exposed to a forward bias. A diode (1) is manufactured by first forming a laminate (2) of the above structure. The laminate (2) is exposed to a forward bias to make the ions become immobilized at respective sites (S1, S2) of the respective receptors (CR, AR).
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: October 5, 2010
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Eduard Johannes Meijer, Eric Alexander Meulenkamp, Ralph Kurt, Steve Klink
  • Patent number: 7807999
    Abstract: An array substrate includes a gate line, a data line, a switching device, a transmissive electrode, a reflective electrode and a compensating wiring. A pixel region includes first and second regions. The switching device is connected to the gate line and the data line. The transmissive electrode is connected to the switching device. The transmissive electrode is formed in the first region. The reflective electrode is insulated from the transmissive electrode. The reflective electrode is formed in the second region that is adjacent to the first region. The compensating wiring is connected to the switching device. The compensating wiring faces the reflective electrode in the second region with an insulation layer interposed therebetween. Thus, both of a reflectivity of the reflective electrode and a transmissivity of the transmissive electrode are enhanced simultaneously, while the liquid crystal display apparatus maintains a uniform cell gap.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: October 5, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Seop Kim, Won-Sang Park, Sang-Il Kim, Dong-Sik Sakong, Young-Chol Yang, Sung-Kyu Hong, Jong-Lae Kim
  • Publication number: 20100224968
    Abstract: This method for manufacturing a high resistivity silicon wafer includes pulling a single crystal such that the single crystal has a p-type dopant concentration at which a wafer surface resistivity becomes in a range of 0.1 to 10 k?cm, an oxygen concentration Oi of 5.0×1017 to 20×1017 atoms/cm3 (ASTM F-121, 1979), and either one of a nitrogen concentration of 1.0×1013 to 10×1013 atoms/cm3 (ASTM F-121, 1979) and a carbon concentration of 0.5×1016 to 10×1016 atoms/cm3 or 0.5×1016 to 50×1016 atoms/cm3 (ASTM F-123, 1981) by using a Czochralski method, processing the single crystal into wafers by slicing the single crystal, and subjecting the wafer to an oxygen out-diffusion heat treatment process in a non-oxidizing atmosphere.
    Type: Application
    Filed: March 1, 2010
    Publication date: September 9, 2010
    Applicant: SUMCO CORPORATION
    Inventor: Kazunari Kurita
  • Publication number: 20100213582
    Abstract: Semiconductor-on-insulator (SOI) structures, including large area SOI structures, are provided which have one or more regions composed of a layer (15) of a substantially single-crystal semiconductor (e.g., doped silicon) attached to a support substrate (20) composed of an oxide glass or an oxide glass-ceramic. The oxide glass or oxide glass-ceramic is preferably transparent and preferably has a strain point of less than 1000° C., a resistivity at 250° C. that is less than or equal to 1016 ?-cm, and contains positive ions (e.g., alkali or alkaline-earth ions) which can move within the glass or glass-ceramic in response to an electric field at elevated temperatures (e.g., 300-1000° C.). The bond strength between the semiconductor layer (15) and the support substrate (20) is preferably at least 8 joules/meter2. The semiconductor layer (15) can include a hybrid region (16) in which the semiconductor material has reacted with oxygen ions originating from the glass or glass-ceramic.
    Type: Application
    Filed: December 4, 2008
    Publication date: August 26, 2010
    Inventors: James G. Couillard, Kishor P. Gadkaree, Joseph F. Mach
  • Publication number: 20100200944
    Abstract: A method for fabricating a back-illuminated semiconductor imaging device on a semiconductor-on-insulator substrate, and resulting imaging device is disclosed. The device includes an insulator layer; a semiconductor substrate, having an interface with the insulator layer; an epitaxial layer grown on the semiconductor substrate by epitaxial growth; and one or more imaging components in the epitaxial layer in proximity to a face of the epitaxial layer, the face being opposite the interface of the semiconductor substrate and the insulator layer, the imaging components comprising junctions within the epitaxial layer; wherein the semiconductor substrate and the epitaxial layer exhibit a net doping concentration having a maximum value at a predetermined distance from the interface of the insulating layer and the semiconductor substrate and which decreases monotonically on both sides of the profile from the maximum value within a portion of the semiconductor substrate and the epitaxial layer.
    Type: Application
    Filed: April 15, 2010
    Publication date: August 12, 2010
    Inventors: Peter Alan Levine, Pradyumna Swain, Mahalingam Bhaskaran
  • Publication number: 20100176375
    Abstract: In accordance with an embodiment, a diode comprises a substrate, a dielectric material including an opening that exposes a portion of the substrate, the opening having an aspect ratio of at least 1, a bottom diode material including a lower region disposed at least partly in the opening and an upper region extending above the opening, the bottom diode material comprising a semiconductor material that is lattice mismatched to the substrate, a top diode material proximate the upper region of the bottom diode material, and an active diode region between the top and bottom diode materials, the active diode region including a surface extending away from the top surface of the substrate.
    Type: Application
    Filed: January 8, 2010
    Publication date: July 15, 2010
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Anthony J. Lochtefeld
  • Patent number: 7741646
    Abstract: A liquid crystal display panel and a fabricating method thereof comprising an image sensing capability, image scanning, and touch inputting. In the liquid crystal display device, a gate line and a data line are formed to intersect each other on a substrate to define a pixel area in which a pixel electrode is positioned. A first thin film transistor is positioned at an intersection area of the gate line and the data line. A sensor thin film transistor senses light having image information and supplied with a first driving voltage from the data line. A driving voltage supply line is positioned in parallel to the gate line to supply a second driving voltage to the sensor thin film transistor.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: June 22, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Hee Kwang Kang, Kyo Seop Choo
  • Publication number: 20100148323
    Abstract: A subject of the present invention is to realize an impurity doping not to bring about a rise of a substrate temperature. Another subject of the present invention is to measure optically physical properties of a lattice defect generated by the impurity doping step to control such that subsequent steps are optimized. An impurity doping method, includes a step of doping an impurity into a surface of a solid state base body, a step of measuring an optical characteristic of an area into which the impurity is doped, a step of selecting annealing conditions based on a measurement result to meet the optical characteristic of the area into which the impurity is doped, and a step of annealing the area into which the impurity is doped, based on the selected annealing conditions.
    Type: Application
    Filed: February 23, 2010
    Publication date: June 17, 2010
    Applicant: PANASONIC CORPORATION
    Inventors: Cheng-Guo Jin, Yuichiro Sasaki, Bunji Mizuno
  • Publication number: 20100140730
    Abstract: A semiconductor device is disclosed. The semiconductor device comprises, a first region of a first conductivity type, a second region of a second conductivity type disposed adjacent to the first region to form a p-n junction structure, a resistance modification region of the second conductivity type, and a field response modification region of the second conductivity type disposed between the resistance modification region and the second region, wherein the field response modification region comprises a varying dopant concentration distribution along a thickness direction of the field response modification region.
    Type: Application
    Filed: December 8, 2008
    Publication date: June 10, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Stanislav Ivanovich Soloviev, Ho-Young Cha, Peter Micah Sandvik, Alexey Vert, Jody Alan Fronheiser
  • Publication number: 20100102420
    Abstract: To provide a semiconductor device in which an interval between first wells can be shortened by improving a separation breakdown voltage between the first wells and a method for manufacturing the same.
    Type: Application
    Filed: October 27, 2009
    Publication date: April 29, 2010
    Applicant: NEC Electronics Corporation
    Inventors: Hidemitsu Mori, Kazuhiro Takimoto, Toshiyuki Shou, Kenji Sasaki, Yutaka Akiyama
  • Publication number: 20100078673
    Abstract: A semiconductor component in which the active junctions extend perpendicularly to the surface of a semiconductor chip substantially across the entire thickness thereof. The contacts with the regions to be connected are provided by conductive fingers substantially crossing the entire region with which a contact is desired to be established.
    Type: Application
    Filed: December 7, 2009
    Publication date: April 1, 2010
    Applicant: STMicroelectronics S.A.
    Inventor: Jean-Luc Morand
  • Publication number: 20100078775
    Abstract: A semiconductor device has a cell field with drift zones of a first type of conductivity and charge carrier compensation zones of a second type of conductivity complementary to the first type. An edge region which surrounds the cell field has a higher blocking strength than the cell field, the edge region having a near-surface area which is undoped to more weakly doped than the drift zones, and beneath the near-surface area at least one buried, vertically extending complementarily doped zone is positioned.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 1, 2010
    Applicant: Infineon Technologies Austria AG
    Inventors: Anton Mauder, Franz Hirler, Armin Willmeroth, Michael Rueb, Holger Kapels
  • Patent number: 7671410
    Abstract: An improved Fast Recovery Diode comprises a main PN junction defining a central conduction region for conducting high current in a forward direction and a peripheral field spreading region surrounding the central conduction region for blocking high voltage in the reverse direction. The main PN junction has an avalanche voltage equal to or lower than an avalanche voltage of the peripheral field spreading region so substantially the entire said main PN junction participates in avalanche conduction. This rugged FRED structure can also be formed in MOSFETS, IGBTS and the like.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: March 2, 2010
    Assignee: Microsemi Corporation
    Inventors: Shanqi Zhao, Dumitru Sdrulla
  • Publication number: 20100038757
    Abstract: A silicon wafer produced from a silicon single crystal ingot grown by Czochralski process is subjected to rapid heating/cooling thermal process at a maximum temperature (T1) of 1300° C. or more, but less than 1380° C. in an oxidizing gas atmosphere having an oxygen partial pressure of 20% or more, but less than 100%. The silicon wafer according to the invention has, in a defect-free region (DZ layer) including at least a device active region of the silicon wafer, a high oxygen concentration region having a concentration of oxygen solid solution of 0.7×1018 atoms/cm3 or more and at the same time, the defect-free region contains interstitial silicon in supersaturated state.
    Type: Application
    Filed: July 30, 2009
    Publication date: February 18, 2010
    Inventors: Hiromichi Isogai, Takeshi Senda, Eiji Toyoda, Kumiko Murayama, Koji Izunome, Susumu Maeda, Kazuhiko Kashima, Koji Araki, Tatsuhiko Aoki, Haruo Sudo, Yoichiro Mochizuki, Akihiko Kobayashi, Senlin Fu
  • Patent number: 7656011
    Abstract: A diode is disclosed. One embodiment provides a semiconductor body having a front and a back, opposite the front in a vertical direction of the semiconductor body. The semiconductor body contains, successively in the vertical direction from the back to the front, a heavily n-doped zone, a weakly n-doped zone, a weakly p-doped zone and a heavily p-doped zone. In the vertical direction, the weakly p-doped zone has a thickness of at least 25% and at most 50% of the thickness of the semiconductor body.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: February 2, 2010
    Assignee: Infineon Technologies AG
    Inventors: Hans-Joachim Schulze, Franz-Josef Niedernostheide, Reiner Barthelmess
  • Publication number: 20100012981
    Abstract: A semiconductor device includes a substrate portion having a plurality of diffusion regions defined therein in a non-symmetrical manner relative to a virtual line defined to bisect the substrate portion. The semiconductor device includes a gate electrode level region including a number of conductive features defined to extend in only a first parallel direction. Adjacent ones of the number of conductive features that share a common line of extent in the first parallel direction are fabricated from respective originating layout features that are separated from each other by an end-to-end spacing having a size that is substantially equal across the gate electrode level region and is minimized to an extent allowed by a semiconductor device manufacturing capability. The gate electrode level region includes conductive features defined along at least four different virtual lines of extent in the first parallel direction.
    Type: Application
    Filed: September 25, 2009
    Publication date: January 21, 2010
    Applicant: Tela Innovations, Inc.
    Inventors: Scott T. Becker, Michael C. Smayling
  • Patent number: 7649244
    Abstract: A vertical semiconductor device comprises a semiconductor body, a first contact and a second contact, wherein a first semiconductor region of a first conductivity type, a second semiconductor region of a second conductivity type and a third semiconductor region of a second conductivity type are formed in the semiconductor body in a direction from the first contact to the second contact, wherein a basic doping density of the second semiconductor region is smaller than a doping density of the third semiconductor region, and wherein in the second semiconductor region a semiconductor zone of the second conductivity type is arranged in which the doping density is increased relative to the basic doping density of the second semiconductor region.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: January 19, 2010
    Assignee: Infineon Technologies Austria AG
    Inventors: Franz Josef Niedernostheide, Hans-Joachim Schulze
  • Publication number: 20100006901
    Abstract: A semiconductor device includes a substrate portion having a plurality of diffusion regions defined therein. The plurality of diffusion regions are separated from each other by one or more non-active regions of the substrate portion. The plurality of diffusion regions are defined in a non-symmetrical manner relative to a virtual line defined to bisect the substrate portion. The semiconductor device includes a gate electrode level region formed above the substrate portion to include a number of conductive features defined to extend in only a first parallel direction. Each of the number of conductive features within the gate electrode level region is fabricated from a respective originating rectangular-shaped layout feature. The number of conductive features within the gate electrode level region includes conductive features defined along at least four different virtual lines of extent in the first parallel direction across the gate electrode level region.
    Type: Application
    Filed: September 16, 2009
    Publication date: January 14, 2010
    Applicant: Tela Innovations, Inc.
    Inventors: Scott T. Becker, Michael C. Smayling
  • Publication number: 20100006897
    Abstract: A restricted layout region includes a diffusion level layout that includes a number of diffusion region layout shapes to be formed within a portion of a substrate of a semiconductor device. The diffusion region layout shapes define at least one p-type diffusion region and at least one n-type diffusion region. The restricted layout region includes a gate electrode level layout defined to pattern conductive features within a gate electrode level above the portion of the substrate. The gate electrode level layout includes rectangular-shaped layout features placed to extend in only a first parallel direction. Some of the rectangular-shaped layout features form gate electrodes of respective PMOS transistor devices, and some of the rectangular-shaped layout features form gate electrodes of respective NMOS transistor devices. A number of the PMOS transistor devices is equal to a number of the NMOS transistor devices in the restricted layout region of the semiconductor device.
    Type: Application
    Filed: September 16, 2009
    Publication date: January 14, 2010
    Applicant: Tela Innovations. Inc.
    Inventors: Scott T. Becker, Michael C. Smayling