Patents Issued in March 31, 2011
  • Publication number: 20110073895
    Abstract: A semiconductor light emitting device includes a semiconductor light emitting element, a lead electrically connected to the semiconductor light emitting element, and a resin package covering the semiconductor light emitting element and part of the lead. The resin package includes a lens facing the semiconductor light emitting element. The lead includes an exposed portion that is not covered by the resin package. The exposed portion includes a first portion and a second portion, where the first portion has a first mount surface oriented backward along the optical axis of the lens, and the second portion has a second mount surface oriented perpendicularly to the optical axis of the lens.
    Type: Application
    Filed: December 7, 2010
    Publication date: March 31, 2011
    Applicant: ROHM CO., LTD.
    Inventors: Yasunori HATA, Masahiko KOBAYAKAWA
  • Publication number: 20110073896
    Abstract: System for wafer-level phosphor deposition. A method for phosphor deposition on a semiconductor wafer that has a plurality of LED dies includes the operations of covering the semiconductor wafer with a selected thickness of photo resist material, removing portions of the photo resist material to expose portions of the semiconductor wafer so that electrical contacts associated with the plurality of LED dies remain unexposed, and depositing phosphor on the exposed portions of the semiconductor wafer.
    Type: Application
    Filed: December 8, 2010
    Publication date: March 31, 2011
    Applicant: Bridgelux, Inc.
    Inventor: Tao Xu
  • Publication number: 20110073897
    Abstract: The present invention provides an organic light emitting diode comprising a substrate, a first electrode provided on the substrate, one or more organic material layers provided on the first electrode, a second electrode provided on the organic material layer, and a light extraction layer provided on the top portion of the second electrode, and a method for manufacturing the same. The organic light emitting diode according to the present invention minimizes total internal reflection of the light emitted from a device to improve the light emitting efficiency.
    Type: Application
    Filed: May 22, 2009
    Publication date: March 31, 2011
    Inventors: Min-Soo Kang, Se-Hwan Son, Hyeon Choi, Jung-Bum Kim
  • Publication number: 20110073898
    Abstract: The present invention relates to a LED module which converts pump light from a LED chip (120) to light at another wavelength, which is emitted from the module. The conversion takes place in a portion of a luminescent material (124). The color purity of the LED module is enhanced by reducing any leakage of pump light using a reflector in combination with an absorber. In one embodiment, the absorber is integrated as one or several thin absorbing layers between the layers of a multi-layer reflection filter (126); this may yield an even higher reduction of pump light leakage from the module.
    Type: Application
    Filed: May 29, 2009
    Publication date: March 31, 2011
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Hendrik Adrianus Van Sprang, Hendrik Johannes Boudewijn Jagt, Berno Hunsche, Thomas Diederich
  • Publication number: 20110073899
    Abstract: A white light source includes: an insulating substrate; a light-emitting diode chip provided on the insulating substrate and that emits ultraviolet light with a wavelength of 330 nm to 410 nm; and a phosphor layer formed to cover the light-emitting diode chip, including a red emitting phosphor, a green emitting phosphor, and a blue emitting phosphor as a phosphor, and the phosphors are dispersed in a cured transparent resin, wherein when it is assumed that the shortest distance between a surface of the phosphor layer and a peripheral portion of the light-emitting diode chip is t(mm) and the mean free path defined by the following expression (1) is L(mm), the t and L satisfy 3.2?t/L. [Expression 1] L=1/(n×?)??(1) (n: number of phosphors per unit volume of the phosphor layer (pcs/mm3), and ?: average cross section area of a phosphor in the phosphor layer (mm2)).
    Type: Application
    Filed: May 28, 2009
    Publication date: March 31, 2011
    Applicant: TOSHIBA MATERIALS CO., LTD
    Inventors: Tetsuo Inoue, Hajime Takeuchi, Yasumasa Ooya, Toshio Shimaoogi, Yasuhiro Shirakawa
  • Publication number: 20110073900
    Abstract: A semiconductor device includes: a semiconductor structure unit; an interconnect layer provided on the major surface side of the semiconductor structure unit; an electrode pad provided on a surface of the interconnect layer on a side opposite to a surface on which the semiconductor structure unit is provided, and the electrode pad electrically connected to the interconnect layer; a plurality of metal pillars joined to the electrode pad separately from each other; and an external terminal provided commonly at tips of the plurality of metal pillars, the metal pillars having an area in a plan view smaller than an area in a plan view of the external terminal.
    Type: Application
    Filed: February 16, 2010
    Publication date: March 31, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Yoshiaki SUGIZAKI
  • Publication number: 20110073901
    Abstract: Adhesive encapsulating compositions for use in electronic devices such as organic electroluminescent devices, touch screens, photovoltaic devices, and thin film transistors are disclosed herein. The adhesive encapsulating compositions include pressure sensitive adhesives comprising one or more cyclic olefin copolymers, in combination with multifunctional (meth)acrylate monomers and tackifiers.
    Type: Application
    Filed: April 23, 2009
    Publication date: March 31, 2011
    Inventors: Jun Fujita, Tamon Tadera, Fred B. McCormick
  • Publication number: 20110073902
    Abstract: A semiconductor body includes an n-conductive semiconductor layer and a p-conductive semiconductor layer. The p-conductive semiconductor layer contains a p-dopant and the n-conductive semiconductor layer an n-dopant and a further dopant.
    Type: Application
    Filed: May 28, 2009
    Publication date: March 31, 2011
    Inventors: Martin Strassburg, Hans-Juergen Lugauer, Vincent Grolier, Berthold Hahn, Richard Floeter
  • Publication number: 20110073903
    Abstract: A reverse blocking IGBT according to the invention can include a reverse breakdown withstanding region, p-type outer field limiting rings formed in a reverse breakdown withstanding region and an outer field plate connected to the outer field limiting rings, the outer field plate including a first outer field plate in contact with outer filed limiting rings nearest to the active region and second outer field plates in contact with other outer field limiting rings. The first outer field plate having an active region side edge portion projecting toward the active region and second outer field plate having an edge area side edge portion projecting toward the edge area. The reverse blocking IGBT according to the invention can facilitate improving the withstand voltages thereof and reducing the area thereof.
    Type: Application
    Filed: September 28, 2010
    Publication date: March 31, 2011
    Inventors: Koh YOSHIKAWA, Motoyoshi KUBOUCHI
  • Publication number: 20110073904
    Abstract: A semiconductor device includes: a SOI substrate; a semiconductor element having first and second impurity layers disposed in an active layer of the SOI substrate, the second impurity layer surrounding the first impurity layer; and multiple first and second conductive type regions disposed in a part of the active layer adjacent to an embedded insulation film of the SOI substrate. The first and second conductive type regions are alternately arranged. The first and second conductive type regions have a layout, which corresponds to the semiconductor element.
    Type: Application
    Filed: September 23, 2010
    Publication date: March 31, 2011
    Applicant: DENSO CORPORATION
    Inventors: Youichi Ashida, Norihito Tokura, Shigeki Takahashi, Yoshiaki Nakayama, Satoshi Shiraki, Kouji Senda
  • Publication number: 20110073905
    Abstract: A semiconductor device and a power converter using it wherein a switching power device and a flywheel diode are connected in series, the flywheel diode includes a region having a Schottky junction to operate as a Schottky diode and a region having a pn junction to operate as a pn diode and control operation is performed such that when current flows forwardly through the flywheel diode, the pn diode operates and when the flywheel diode recovers backwardly, the Schottky diode operates mainly.
    Type: Application
    Filed: April 26, 2010
    Publication date: March 31, 2011
    Inventor: Mutsuhiro Mori
  • Publication number: 20110073906
    Abstract: This invention discloses a method for manufacturing a semiconductor power device in a semiconductor substrate comprises an active cell area and a termination area.
    Type: Application
    Filed: September 30, 2009
    Publication date: March 31, 2011
    Inventors: Madhur Bobde, Lingpeng Guan, Anup Bhalla
  • Publication number: 20110073907
    Abstract: A method for pseudomorphic growth and integration of an in-situ doped, strain-compensated metastable compound base into an electronic device, such as, for example, a SiGe NPN HBT, by substitutional placement of strain-compensating atomic species. The invention also applies to strained layers in other electronic devices such as strained SiGe, Si in MOS applications, vertical thin film transistors (VTFT), and a variety of other electronic device types. Devices formed from compound semiconductors other than SiGe, such as, for example, GaAs, InP, and AlGaAs are also amenable to beneficial processes described herein.
    Type: Application
    Filed: October 11, 2010
    Publication date: March 31, 2011
    Applicant: Atmel Corporation
    Inventors: Darwin G. Enicks, John Taylor Chaffee, Damian A. Carver
  • Publication number: 20110073908
    Abstract: The benefits of strained semiconductors are combined with silicon-on-insulator approaches to substrate and device fabrication.
    Type: Application
    Filed: October 19, 2010
    Publication date: March 31, 2011
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Anthony J. Lochtefeld, Thomas A. Langdo, Richard Hammond, Matthew T. Currie, Eugene A. Fitzgerald
  • Publication number: 20110073909
    Abstract: A semiconductor fabrication method includes depositing a dummy gate layer onto a substrate, patterning the dummy gate layer, depositing a hardmask layer over the dummy gate layer, patterning the hardmask layer, etching a recess into the substrate, adjacent the dummy gate layer, depositing a semiconductor material into the recess, removing the hardmask layer, depositing replacement spacers onto the dummy gate layer, performing an oxide deposition over the dummy gate layer and replacement spacers, removing the dummy gate and replacement spacers, thereby forming a gate recess in the oxide and depositing a gate stack into the recess.
    Type: Application
    Filed: September 28, 2009
    Publication date: March 31, 2011
    Applicant: International Business Machines Corporation
    Inventors: Josephine B. Chang, Michael A. Guillorn, Isaac Lauer, Amlan Majumdar
  • Publication number: 20110073910
    Abstract: The nitride semiconductor material according to the present invention includes a group III nitride semiconductor and a group IV nitride formed on the group III nitride semiconductor, where an interface between the group III nitride semiconductor and the group IV nitride has a regular atomic arrangement. Moreover, an arrangement of nitrogen atoms of the group IV nitride in the interface and an arrangement of group III atoms of the group III nitride semiconductor in the interface may be substantially identical.
    Type: Application
    Filed: December 8, 2010
    Publication date: March 31, 2011
    Applicant: Panasonic Corporation
    Inventors: Toshiyuki Takizawa, Tetsuzo Ueda
  • Publication number: 20110073911
    Abstract: A semiconductor device including: a substrate, which has a composition represented by the formula: Ala?Ga1-a?N, wherein a? satisfies 0<a??1; an active layer, which is formed on the substrate, and which has a composition represented by the formula: Alm?Ga1-m?N, wherein m? satisfies 0?m?<1; a buffer layer disposed between the active layer and the substrate; and a first main electrode and a second main electrode, which are formed on the active layer, and which are separated from each other, wherein the semiconductor device is operated by electric current flowing between the first main electrode and the second main electrode in the active layer, and wherein the buffer layer has a composition represented by the formula: AlbIn1-bN, wherein a composition ratio b satisfies 0<b<1, wherein the composition ratio b satisfies m?<b<a?.
    Type: Application
    Filed: September 16, 2010
    Publication date: March 31, 2011
    Applicant: SANKEN ELECTRIC CO., LTD.
    Inventor: Ken SATO
  • Publication number: 20110073912
    Abstract: In a method of forming a gate recess, on a surface of an epitaxial wafer including an epitaxial substrate, having a semiconductor layer having the band gap energy varying therein in the depth-wise direction, and a SiN surface protective layer, having a sidewall forming a gate opening and coating the surface of the epitaxial substrate, ultraviolet light having its energy equivalent to the band gap energy of the specific semiconductor layer is irradiated, while the specific semiconductor layer is photoelectrochemically etched from the gate opening with the SiN surface protective layer used as a mask. The gate recess free from plasma ion-induced damage is thus obtained.
    Type: Application
    Filed: September 28, 2010
    Publication date: March 31, 2011
    Applicant: OKI ELECTRIC INDUSTRY CO., LTD.
    Inventors: Toshiharu Marui, Hideyuki Okita
  • Publication number: 20110073913
    Abstract: Electronic and opto-electronic devices having epitaxially-deposited III/V compounds on vicinal group IV substrates and method for making same. The devices include an AlAs nucleating layer on a Ge substrate. The group IV substrate contains a p-n junction whose change of characteristics during epitaxial growth of As-containing layers is minimized by the AlAs nucleating layer. The AlAs nucleating layer provides improved morphology of the devices and a means to control the position of a p-n junction near the surface of the group IV substrate through diffusion of As and/or P and near the bottom of the III/V structure through minimized diffusion of the group IV element.
    Type: Application
    Filed: December 3, 2010
    Publication date: March 31, 2011
    Applicant: CYRIUM TECHNOLOGIES INCORPORATED
    Inventors: Norbert PUETZ, Simon FAFARD, Bruno J. RIEL
  • Publication number: 20110073914
    Abstract: To provide a semiconductor integrated circuit device advantageous against EM and ESD. A plurality of I/O cells; a power wire formed of a plurality of interconnect layers over the above-described I/O cells; a bonding pad formed in an upper layer of the power wire and in a position corresponding to the I/O cell; and lead-out areas capable of electrically coupling the I/O cell to the bonding pad are provided. The above-described power wire includes a first power wire and a second power wire, and the above-described I/O cell includes first elements coupled to the first power wire and second elements coupled to the second power wire. The first element is placed on the first power wire side, and the second element is placed on the second power wire side. The first power wire and the second power wire can allow for a high current due to the interconnect layers over the I/O cells, thus having robustness against EM and ESD.
    Type: Application
    Filed: December 3, 2010
    Publication date: March 31, 2011
    Inventors: Shunsuke TOYOSHIMA, Kazuo Tanaka, Masaru Iwabuchi
  • Publication number: 20110073915
    Abstract: A semiconductor integrated circuit according to the present invention includes an I/O cell, a first PAD connected to the I/O cell, first and second PADs, a package wire which is connected to the first PAD and allows connection between the first PAD and an outside of the semiconductor integrated circuit, and a second package wire which is connected to the second PAD and allows connection between the second PAD and an outside of the semiconductor integrated circuit. A connection point between the first PAD and the fist package wire is located in an area where the I/O cell is placed. A connection point between the second PAD and the second package wire is located outside an area where the I/O cell is placed.
    Type: Application
    Filed: December 8, 2010
    Publication date: March 31, 2011
    Applicant: PANASONIC CORPORATION
    Inventor: Tatsuya NARUSE
  • Publication number: 20110073916
    Abstract: A gate array of a semiconductor substrate on which plural unit cells are arranged in parallel, the unit cells having the same pattern that includes a source potential region VDD, a PMOS, an NMOS and a ground potential region GND. Metal wiring lines being formed, with an insulating layer between, on the unit cells, with contacts that make electrical connection between the metal wiring lines and the unit cell transistors. The gate wiring of a transistor in a non-used unit cell is used in place of a metal wiring line. By doing so, the area of metal wiring lines in a gate array is reduced and the array wiring efficiency is increased.
    Type: Application
    Filed: December 10, 2010
    Publication date: March 31, 2011
    Applicant: OKI SEMICONDUCTOR CO., LTD.
    Inventor: Hirofumi Uchida
  • Publication number: 20110073917
    Abstract: The structure and method of formation of an integrated CMOS level and active device level that can be a memory device level. The integration includes the formation of a “super-flat” interface between the two levels formed by the patterning of a full complement of active and dummy interconnecting vias using two separate patterning and etch processes. The active vias connect memory devices in the upper device level to connecting pads in the lower CMOS level. The dummy vias may extend up to an etch stop layer formed over the CMOS layer or may be stopped at an intermediate etch stop layer formed within the device level. The dummy vias thereby contact memory devices but do not connect them to active elements in the CMOS level.
    Type: Application
    Filed: September 29, 2009
    Publication date: March 31, 2011
    Inventors: Tom Zhong, Adam Zhong, Wai-Ming J. Kan, Chyu-Jiuh Torng
  • Publication number: 20110073918
    Abstract: A semiconductor device includes a thin-film transistor 126 and a thin-film diode 127. The respective semiconductor layers 109t and 109d of the thin-film transistor 126 and the thin-film diode 127 are portions of a single crystalline semiconductor layer obtained by crystallizing the same amorphous semiconductor film. The semiconductor layer 109t of the thin-film transistor 126 does include a catalyst element that promotes crystallization of the amorphous semiconductor film. But the semiconductor layer 109d of the thin-film diode 127 includes substantially no catalyst elements.
    Type: Application
    Filed: May 26, 2009
    Publication date: March 31, 2011
    Inventor: Naoki MAKITA
  • Publication number: 20110073919
    Abstract: The present disclosure provides a FinFET device and method of fabricating a FinFET device. The method includes providing a substrate, forming a fin structure on the substrate, forming a gate structure including a gate dielectric and gate electrode, the gate structure overlying a portion of the fin structure, forming a protection layer over another portion of the fin structure, and thereafter performing an implantation process to form source and drain regions.
    Type: Application
    Filed: September 29, 2009
    Publication date: March 31, 2011
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventor: Bartlomiej Jan Pawlak
  • Publication number: 20110073920
    Abstract: In a replacement gate approach, a top area of a gate opening may receive a superior cross-sectional shape on the basis of a material erosion process, wherein a sacrificial material may protect sensitive materials, such as a high-k dielectric material, in the gate opening. In one illustrative embodiment, the sacrificial material may be applied after depositing a work function adjusting species in the gate opening.
    Type: Application
    Filed: September 27, 2010
    Publication date: March 31, 2011
    Inventors: Jens Heinrich, Fernando Koch, Johann Steinmetz
  • Publication number: 20110073921
    Abstract: The bonding time of a metallic ribbon is shortened in the semiconductor device which connects a lead frame with the bonding pad of a semiconductor chip with a metallic ribbon. The bottom of the wedge tool is divided into two by the V-groove at the first branch and the second branch. In order to do bonding of the Al ribbon to the source pad of the silicon chip, and the source post of the lead frame, first, the first branch and second branch of the wedge tool are contacted by pressure to Al ribbon on the source pad, and supersonic vibration is applied to it. Subsequently, the first branch is contacted by pressure to Al ribbon on the source post, and supersonic vibration is applied to it. Here, since the width of the first branch is narrower than the width of the source post, Al ribbon is not joined at the end surface of the width direction of the source post.
    Type: Application
    Filed: December 7, 2010
    Publication date: March 31, 2011
    Inventors: Hideaki TAMIMOTO, Takumi SOBA, Toru UEGURI, Kazuo KUDO
  • Publication number: 20110073922
    Abstract: A semiconductor device manufacturing method includes the steps of ion-implanting a p-type or an n-type impurity into a Si layer portion to become a p-type or an n-type contact region of a semiconductor device, forming a metal film for a contact on a surface of the contact region without performing heat treatment for activating implanted ions after the ion-implanting step, and forming a silicide of a metal of the metal film by causing the metal to react with the Si layer portion by heating. It is desired to simultaneously perform the step of forming the silicide and the step of activating the implanted ions by heat treatment after the metal film is formed.
    Type: Application
    Filed: April 17, 2009
    Publication date: March 31, 2011
    Inventors: Tadahiro Ohmi, Akinobu Teramoto, Hiroaki Tanaka, Tatsunori Isogai
  • Publication number: 20110073923
    Abstract: A solid-state imaging device includes a first-conductivity-type semiconductor well region, a plurality of pixels each of which is formed on the semiconductor well region and is composed of a photoelectric conversion portion and a pixel transistor, an element isolation region provided between the pixels and in the pixels, and an element isolation region being free from an insulation film and being provided between desired pixel transistors.
    Type: Application
    Filed: September 14, 2010
    Publication date: March 31, 2011
    Applicant: SONY CORPORATION
    Inventors: Keiji Tatani, Fumihiko Koga, Takashi Nagano
  • Publication number: 20110073924
    Abstract: A non-volatile memory cell includes a semiconductor substrate with isolation structures formed therein and thereby transistor region and capacitor region are defined therein. A conductor is disposed over the isolation structures, the transistor region and a first-type doped well disposed in the capacitor region. The conductor includes a capacitor portion disposed over the first-type doped well, a transistor portion disposed over the transistor region, a first edge disposed over the isolation structure at a side of the transistor region, and an opposite second edge disposed over the first-type doped well. Two first ion doped wells are disposed in the transistor region and respectively at two sides of the transistor portion, and constitutes a transistor with the transistor portion. A second ion doped region is disposed in the capacitor region excluding the conductor and constitutes a capacitor with the capacitor portion.
    Type: Application
    Filed: September 29, 2009
    Publication date: March 31, 2011
    Inventors: Hung-Lin SHIH, Bin Chen, JR., Pei-Ching Yin, Hui-Fang Tsai
  • Publication number: 20110073925
    Abstract: A semiconductor device with reduced resistance of a buried bit line, and a method for fabricating the same. The method for fabricating a semiconductor device includes etching a semiconductor substrate to form a plurality of active regions which are separated from one another by trenches formed in between, forming a side contact on a sidewall of each active region, and forming metal bit lines, each filling a portion of a respective trench and connected to the side contact.
    Type: Application
    Filed: December 30, 2009
    Publication date: March 31, 2011
    Inventors: Eun-Shil PARK, Young-Seok Eun, Kee-Jeung Lee, Min-Soo Kim
  • Publication number: 20110073926
    Abstract: A nonvolatile semiconductor memory device includes a memory cell array and plural transfer transistors. The plural transfer transistors include: a gate electrode formed on a semiconductor substrate via a gate insulating film; a first diffused region formed in a surface of the semiconductor substrate located under the gate electrode; a second diffused region formed in a surface of the semiconductor substrate adjoining the first diffused region; and a third diffused region formed in a surface of the semiconductor substrate sandwiching the first diffused region with the second diffused region. The third diffused region includes an overlapping region overlapping the first diffused region. A first wire is disposed above the overlapping region. The first wire is supplied with at least a certain voltage for preventing formation of a depletion region in the third diffused region when the transfer transistor transfers the voltage used for writing.
    Type: Application
    Filed: August 17, 2010
    Publication date: March 31, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Hiroyuki KUTSUKAKE
  • Publication number: 20110073927
    Abstract: According to one embodiment, a non-volatile memory device includes a stacked structure including a memory portion and an electrode having a surface facing the memory portion; and a voltage application portion to apply a voltage to the memory portion to change resistance. The surface includes first and second regions. The first region contains a first nonmetallic element and at least one element of a metallic element, Si, Ga, and As. The second region contains a second nonmetallic element and the at least one element. The second region has a content ratio of the second nonmetallic element higher than that in the first region. A difference in electronegativity between the second nonmetallic element and the at least one element is greater than that between the first nonmetallic element and the at least one element. At least one of the first and second regions has an anisotropic shape.
    Type: Application
    Filed: September 20, 2010
    Publication date: March 31, 2011
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takeshi ARAKI, Takeshi Yamaguchi, Mariko Hayashi, Kohichi Kubo, Takayuki Tsukamoto
  • Publication number: 20110073928
    Abstract: Provided are a non-volatile memory device and a method of forming the same. The non-volatile memory device includes: a tunnel insulation layer on a substrate; a floating gate on the tunnel insulation layer; a blocking insulation layer on the floating gate; a first barrier pattern, between the top of the floating gate and the blocking insulation layer, having a higher conduction band energy level than the floating gate; and a control gate on the blocking insulation layer.
    Type: Application
    Filed: September 30, 2010
    Publication date: March 31, 2011
    Inventors: ByungKyu Cho, Sunghoi Hur, Jaeduk Lee, Jungdal Choi
  • Publication number: 20110073929
    Abstract: A first dielectric layer is formed over a substrate. A single layer first conductive layer that acts as a floating gate is formed over the first dielectric layer. A trough is formed in the first conductive layer to increase the capacitive coupling of the floating gate with a control gate. An intergate dielectric layer is formed over the floating gate layer. A second conductive layer is formed over the second dielectric layer to act as a control gate.
    Type: Application
    Filed: December 7, 2010
    Publication date: March 31, 2011
    Inventors: Sukesh Sandhu, Gurtej S. Sandhu
  • Publication number: 20110073930
    Abstract: Semiconductor devices and methods of forming the same. The semiconductor devices include a tunnel insulation layer on a substrate, a floating gate on the tunnel insulation layer, a gate insulation layer on the floating gate, a low-dielectric constant (low-k) region between the top of the floating gate and the gate insulation layer, the low-k region having a lower dielectric constant than a silicon oxide, and a control gate on the gate insulation layer.
    Type: Application
    Filed: September 17, 2010
    Publication date: March 31, 2011
    Inventors: Yong-Lack CHOI, Sunghoi HUR, Jaeduk LEE, Jungdal CHOI
  • Publication number: 20110073931
    Abstract: A plasma nitriding process is followed by a selective etching process which removes a silicon oxynitride film formed on surfaces of both an element separation film and an insulation film while leaving a silicon nitride film formed on an electrode layer. The selective etching process removes the silicon oxynitride film formed on the surfaces of the element separation film and the insulation film.
    Type: Application
    Filed: November 9, 2010
    Publication date: March 31, 2011
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Yoshihiro HIROTA, Yoshihiro SATO, Nobuo OKUMURA
  • Publication number: 20110073932
    Abstract: A non volatile semiconductor memory device includes: a semiconductor substrate comprising element regions; gate structures each comprising a first gate insulation film, a charge storage layer, a second gate insulation film, and a control gate; element isolation insulation films defining the element regions and electrically isolating the element regions; impurity diffusion layers in the element regions; a third gate insulation film of a first insulation material located between the gate structures; and a fourth gate insulation film of a second insulation material which is different from the first insulation material configured to be in contact with side walls of the gate structures. A bottom face of the fourth gate insulation film is located so as to be remote from a surface of the semiconductor substrate by a distance equal to at least half of a height of the charge storage layer.
    Type: Application
    Filed: March 16, 2010
    Publication date: March 31, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kazuhiro Shimizu, Hideto Horii
  • Publication number: 20110073933
    Abstract: A semiconductor memory device includes: a semiconductor substrate; a first device-isolation insulation film that divides the semiconductor substrate at a first transistor region into first device regions; a second device-isolation insulation film that divides the semiconductor substrate at a second transistor region into second device regions; a plurality of first transistors formed in the first transistor region; a plurality of second transistors formed in the second transistor region; and an anti-inversion diffusion layer formed under the first device-isolation insulation film. Each of the first and second transistors includes, respectively: a first and second gate insulation film provided respectively on the first and second device regions; a first and second gate electrode provided respectively on the first and second gate insulation films; and a first and second diffusion layer formed respectively on a surface of the semiconductor substrate so as to sandwich the first and second gate electrodes.
    Type: Application
    Filed: September 30, 2010
    Publication date: March 31, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Norihisa Arai
  • Publication number: 20110073934
    Abstract: The invention provides a semiconductor device and its manufacturing method in which a memory transistor and a plurality of thin film transistors that have gate insulating films with different thicknesses are fabricated over a substrate. The invention is characterized by the structural difference between the memory transistor and the plurality of thin film transistors. Specifically, the memory transistor and some of the plurality of thin film transistors are provided to have a bottom gate structure while the other thin film transistors are provided to have a top gate structure, which enables the reduction of characteristic defects of the transistor and simplification of its manufacturing process.
    Type: Application
    Filed: December 9, 2010
    Publication date: March 31, 2011
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Tamae TAKANO, Tetsuya KAKEHATA, Shunpei YAMAZAKI
  • Publication number: 20110073935
    Abstract: In one embodiment, a non-volatile semiconductor memory device has a semiconductor layer having a pair of source/drain regions formed at a predetermined distance and a channel region between the pair of source/drain regions; a first insulating film formed above the semiconductor layer; a charge accumulating film formed above the first insulating film; a second insulating film formed above the charge accumulating film; and a control gate electrode film formed above the second insulating film. The first insulating film includes a first oxide film, a first silicon nitride film formed above the first oxide film and including Boron, and a second oxide film formed above the first silicon nitride film.
    Type: Application
    Filed: September 21, 2010
    Publication date: March 31, 2011
    Inventors: Akiko SEKIHARA, Tesuya Kai, Masaaki Higuchi, Yoshio Ozawa
  • Publication number: 20110073936
    Abstract: A method of making a semiconductor device using a semiconductor substrate includes forming a first insulating layer having a first band energy over the semiconductor substrate. A first semiconductor layer having a second band energy is formed on the first insulating layer. The first semiconductor layer is annealed to form a plurality of first charge retainer globules from the first semiconductor layer. A first protective film is formed over each charge retainer globule of the plurality of first charge retainer globules. A second semiconductor layer is formed having a third band energy over the plurality of first charge retainer globules. The second semiconductor layer is annealed to form a plurality of storage globules from the second semiconductor layer over the plurality of first charge retainer globules. A magnitude of the second band energy is between a magnitude of the first band energy and a magnitude of the third band energy.
    Type: Application
    Filed: December 9, 2010
    Publication date: March 31, 2011
    Applicant: Freescale Semiconductor, Inc.
    Inventors: Cheong Min Hong, Sung-Taeg Kang
  • Publication number: 20110073937
    Abstract: A method for fabricating a charge trapping memory device includes providing a substrate; forming a first oxide layer on the substrate; forming a number of BD regions in the substrate; nitridizing the interface of the first oxide layer and the substrate via a process; forming a charge trapping layer on the first oxide layer; and forming a second oxide layer on the charge trapping layer.
    Type: Application
    Filed: December 7, 2010
    Publication date: March 31, 2011
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Yen-Hao Shih, Chi-Pin Lu, Jung-Yu Hsieh
  • Publication number: 20110073938
    Abstract: A semiconductor substrate of an IGFET has drain regions, a p-type first body region, a p?-type second body region, an n-type first source region, and an n+-type second source region, and additionally has multiple pairs of trenches that constitute an IGFET cell. A gate insulating film and a gate electrode are provided inside the trenches. A source electrode is in Schottky contact with the second body region. A pn junction between the second drain region and the first body region is exposed to one of the main surfaces of the semiconductor substrate. The first body region, the second body region, and the first source region are also provided outside the trenches, and an n-type protective semiconductor region is provided. The trenches contribute to miniaturization of the IGFET and to lowering of the on-resistance. The reverse breakdown voltage of the IGFET can be improved by the reduction in contact area between the second body region and the source electrode to the outside from the trenches.
    Type: Application
    Filed: December 2, 2010
    Publication date: March 31, 2011
    Applicant: Sanken Electric Co., Ltd.
    Inventor: Ryoji TAKAHASHI
  • Publication number: 20110073939
    Abstract: A semiconductor device may include, but is not limited to: a semiconductor substrate; a first insulating film; a conductive film; and a semiconductor film. The semiconductor substrate has a first hole. The semiconductor substrate has a first region into which a first impurity is introduced. The first region is adjacent to a side surface of the first hole. The first insulating film covers at least the side surface and a bottom surface of the first hole. The first insulating film has a second hole adjacent to the side surface of the first hole. The conductive film fills a bottom portion of the first hole. The semiconductor film is positioned over the conductive film. The semiconductor film fills the second hole and is in contact with the first region.
    Type: Application
    Filed: September 24, 2010
    Publication date: March 31, 2011
    Applicant: ELPIDA MEMORY, INC.
    Inventor: Noriaki MIKASA
  • Publication number: 20110073940
    Abstract: A method for fabricating a semiconductor device includes forming a first conductive layer doped with an impurity for forming a cell junction over a semiconductor substrate, forming a second conductive layer over the first conductive layer, forming a plurality of active regions by etching the second conductive layer and the first conductive layer, the plurality of the active regions being separated from one another by trenches, forming a side contact connected to a sidewall of the first conductive layer, and forming a plurality of metal bit lines each connected to the side contact and filling a portion of each trench.
    Type: Application
    Filed: December 30, 2009
    Publication date: March 31, 2011
    Inventors: Jin-Ku LEE, Young-Ho Lee, Mi-Ri Lee
  • Publication number: 20110073941
    Abstract: Methods of fabricating semiconductor devices are provided. A substrate having active patterns and isolating layer patterns is prepared. Each of the isolating layer patterns has an upper surface higher than that of each of the active patterns. A spacer layer having a uniform thickness is formed on the substrate. The spacer layer is etched to form a spacer on a sidewall of each of the isolating layer patterns. A gate structure is formed on each of the active patterns. A selective epitaxial growth (SEG) process is performed on the active patterns having the gate structure to form isolated epitaxial layers that have upper surfaces higher than those of the isolating layer patterns, on the active patterns. Related semiconductor devices are also provided.
    Type: Application
    Filed: December 7, 2010
    Publication date: March 31, 2011
    Inventors: Jin Bum Kim, Young-Pil Kim, Jung-Yun Won, Hion-Suck Baik, Jun-Ho Lee
  • Publication number: 20110073942
    Abstract: In one embodiment, a high voltage field-effect transistor (HVFET) includes a field oxide layer that covers a first well region, the field oxide layer having a first thickness and extending in a second lateral direction from a drain region to near a second well region. A gate oxide covers a channel region and has a second dimension in a first lateral direction. A gate extends in the second lateral direction from the source region to over a portion of the field oxide layer, the gate being insulated from the channel region by the gate oxide, the gate extending in the first lateral dimension over an inactive area of the HVFET beyond the second dimension of the gate oxide, the gate being insulated from the first and second well regions over the inactive area by the field oxide layer.
    Type: Application
    Filed: September 29, 2009
    Publication date: March 31, 2011
    Applicant: Power Integrations, Inc.
    Inventors: Sujit Banerjee, Vijay Parthasarathy
  • Publication number: 20110073943
    Abstract: A semiconductor package may comprise a semiconductor substrate, a MOSFET device having a plurality cells formed on the substrate, and a source region common to all cells disposed on a bottom of the substrate. Each cell comprises a drain region on a top of the semiconductor device, a gate to control a flow of electrical current between the source and drain regions, a source contact proximate the gate; and an electrical connection between the source contact and source region. At least one drain connection is electrically coupled to the drain region. Source, drain and gate pads are electrically connected to the source region, drain region and gates of the devices. The drain, source and gate pads are formed on one surface of the semiconductor package. The cells are distributed across the substrate, whereby the electrical connections between the source contact of each device and the source region are distributed across the substrate.
    Type: Application
    Filed: December 10, 2010
    Publication date: March 31, 2011
    Applicant: Alpha and Omega Semiconductor Incorporated
    Inventor: Francois Hebert
  • Publication number: 20110073944
    Abstract: According to one embodiment, a semiconductor device includes: a substrate in which, on a semiconductor substrate of a first conductivity type, a buried layer of a second conductivity type and a semiconductor layer of the second conductivity type are stacked; trench that define an element forming region in the substrate; element isolation insulation film formed in the trench; and a semiconductor element formed in the element forming region. The trench include first trench formed from the surface of the substrate to boundary depth and second trench formed from the boundary depth to the bottom and having a diameter smaller than that of the first trench. First diffusion layers connected to the buried layer are formed around the first or second trench according to inter-element breakdown voltage required of the semiconductor element.
    Type: Application
    Filed: August 24, 2010
    Publication date: March 31, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Tetsuya Tsukihara