Patents Examined by Matthew W. Such
  • Patent number: 9159818
    Abstract: A high-current, N-type silicon-on-insulator lateral insulated-gate bipolar transistor, including: a P-type substrate, a buried-oxide layer disposed on the P-type substrate, an N-type epitaxial layer disposed on the oxide layer, and an N-type buffer trap region. A P-type body region and an N-type central buffer trap region are disposed inside the N-type epitaxial layer; a P-type drain region is disposed in the buffer trap region; N-type source regions and a P-type body contact region are disposed in the P-type body region; an N-type base region and a P-type emitter region are disposed in the buffer trap region; gate and field oxide layers are disposed on the N-type epitaxial layer; polycrystalline silicon gates are disposed on the gate oxide layers; and a passivation layer and metal layers are disposed on the surface of the symmetrical transistor. P-type emitter region output and current density are improved without increasing the area of the transistor.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: October 13, 2015
    Assignee: SOUTHEAST UNIVERSITY
    Inventors: Weifeng Sun, Siyang Liu, Jing Zhu, Qinsong Qian, Shen Xu, Shengli Lu, Longxing Shi
  • Patent number: 9153499
    Abstract: Provided is a semiconductor device including first, second and third source/drain regions. A first conductive plug in contact with the first source/drain regions, having a first width and a first height, and including a first material is provided. An interlayer insulating layer covering the first conductive plug and the substrate is disposed. A second conductive plug vertically penetrating the interlayer insulating layer to be in contact with the second source/drain regions, having a second width and a second height, and including a second material is provided. A third conductive plug vertically penetrating the interlayer insulating layer to be in contact with the third source/drain regions, having a third width and a third height, and including a third material is disposed. The second material includes a noble metal, a noble metal oxide or a perovskite-based conductive oxide.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: October 6, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Wan-Don Kim, Seung-Hwan Lee, Beom-Seok Kim, Kyu-Ho Cho, Oh-Seong Kwon, Geun-Kyu Choi, Ji-Eun Lim, Yong-Suk Tak
  • Patent number: 9147766
    Abstract: A method for forming a semiconductor device having a fin-type channel is provided. The method may include the following operations: forming a first buffer layer over a substrate; forming a first dielectric layer over the first buffer layer; patterning the first dielectric layer over the first buffer layer; forming a barrier layer over the first buffer layer; forming a second dielectric layer over the barrier layer; patterning the second dielectric layer over the barrier layer; forming a channel layer over the barrier layer; and patterning the second dielectric layer, such that at least a portion of the channel layer protrudes to form the fin-type channel.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: September 29, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Chien-Hsun Wang, Chun-Hsiung Lin, Mao-Lin Huang
  • Patent number: 9147804
    Abstract: A nitride semiconductor light-emitting element includes: n-side and p-side electrodes; n-type and p-type nitride semiconductor layers; and an active layer arranged between the n- and p-type nitride semiconductor layers. The p-type nitride semiconductor layer has a projection having a height of 30 nm to 50 nm. The projection is formed of a p-type nitride semiconductor including magnesium and silicon. The p-type nitride semiconductor has a silicon concentration of 1.0×1017 cm?3 to 6.0×1017 cm?3. The projection projects from the active layer toward the p-side electrode. On a plan view of the nitride semiconductor light-emitting element, the p-side electrode overlaps with the projection. The projection includes a dislocation. The projection is surrounded with a flat surface which is formed of the p-type nitride semiconductor. And the projection has a higher dislocation density than the flat surface.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: September 29, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Ryou Kato, Kunimasa Takahashi, Masaki Fujikane, Toshiya Yokogawa
  • Patent number: 9147998
    Abstract: A light emitting semiconductor device according the invention includes an SOI substrate, a collector and an injector. The SOI substrate includes a carrier layer, a buried oxide layer on the carrier layer, and a doped silicon layer structure with a conductivity type. The doped silicon layer structure with the conductivity type includes at least two silicon- or silicon germanium layers arranged adjacent to one another, wherein a dislocation network is configured in their interface portions at which dislocation network a radiative charge carrier combination with a light energy is provided, which light energy is smaller than a band gap energy of the silicon- or silicon germanium layers. The collector is formed as a pn-junction in a portion between the dislocation network and a surface of the silicon layer structure that is oriented away from the carrier layer, and wherein the injector is configured as a metal insulator semiconductor diode.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: September 29, 2015
    Assignee: IHP GMBH—INNOVATIONS FOR HIGH PERFORMANCE MICROELECTRONICS
    Inventors: Martin Kittler, Tzanimir Arguirov, Manfred Reiche
  • Patent number: 9147696
    Abstract: Devices and methods for forming semiconductor devices with FinFETs are provided. One method includes, for instance: obtaining an intermediate semiconductor device with a substrate and at least one shallow trench isolation region; depositing a hard mask layer over the intermediate semiconductor device; etching the hard mask layer to form at least one fin hard mask; and depositing at least one sacrificial gate structure over the at least one fin hard mask and at least a portion of the substrate. One intermediate semiconductor device includes, for instance: a substrate with at least one shallow trench isolation region; at least one fin hard mask over the substrate; at least one sacrificial gate structure over the at least one fin hard mask; at least one spacer disposed on the at least one sacrificial gate structure; and at least one pFET region and at least one nFET region grown into the substrate.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: September 29, 2015
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Jing Wan, Andy Wei, Lun Zhao, Dae Geun Yang, Jin Ping Liu, Tien-Ying Luo, Guillaume Bouche, Mariappan Hariharaputhiran, Churamani Gaire
  • Patent number: 9142795
    Abstract: An organic light-emitting diode includes a first electrode and a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode; a hole transport layer between the first electrode and the emission layer and includes a first hole transport layer, a second hole transport layer, and a buffer layer between the first hole transport layer and the second hole transport layer; and an electron transport layer between the emission layer and the second electrode, wherein the buffer layer and the electron transport layer each include a mixture of an electron-transporting organometallic compound and an electron-transporting organic compound.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: September 22, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Na-Jeong Kim, Seung-Wook Chang
  • Patent number: 9142595
    Abstract: A color-tunable OLED device comprising: a charge-carrying cathode layer and a charge-carrying anode layer disposed parallel to each other; at least a first organic light-emitting unit and a second organic light-emitting unit disposed between the cathode and anode; and at least one charge-generating layer disposed between the cathode and anode, wherein the charge-generating layer is a charge-carrying layer of lesser lateral conductivity than the anode and cathode, and said charge-generating layer is electrically connected without additional circuit elements to another charge-carrying layer and disposed such that at least one organic light-emitting unit is wedged between two directly-connected charge-carrying layers, and at least one organic light-emitting unit is not thusly wedged.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: September 22, 2015
    Assignee: OLEDWORKS LLC
    Inventor: John W. Hamer
  • Patent number: 9142743
    Abstract: A vertical GaN-based LED is made by growing an epitaxial LED structure on a silicon wafer. A silver layer is added and annealed to withstand >450° C. temperatures. A barrier layer (e.g., Ni/Ti) is provided that is effective for five minutes at >450° C. at preventing bond metal from diffusing into the silver. The resulting device wafer structure is then wafer bonded to a carrier wafer structure using a high temperature bond metal (e.g., AlGe) that melts at >380° C. After wafer bonding, the silicon is removed, gold-free electrodes (e.g., Al) are added, and the structure is singulated. High temperature solder (e.g., ZnAl) that is compatible with the electrode metal is used for die attach. Die attach occurs at >380° C. for ten seconds without melting the bond metal or otherwise damaging the device. The entire LED contains no gold, and consequently is manufacturable in a high-volume gold-free semiconductor fabrication facility.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: September 22, 2015
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Chih-Wei Chuang, Chao-Kun Lin, Long Yang, Norihito Hamaguchi
  • Patent number: 9138988
    Abstract: A printing apparatus includes a first nozzle through which to eject color ink, a second nozzle through which to eject clear ink, a control unit that performs control, in a manner that ejects the color ink onto a glittering layer through the first nozzle, and ejects the clear ink onto the color ink through the second nozzle, at the time of forming an image on a medium on which the glittering layer is formed, in which the control unit controls ejection of the clear ink through the second nozzle in such a manner that an amount of the clear ink to be ejected onto the color ink varies according to a light absorption rate of the color ink.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: September 22, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hidenori Usuda, Takayoshi Kagata
  • Patent number: 9142661
    Abstract: According to one embodiment, a semiconductor device includes a first semiconductor region of a first conductivity type, a second semiconductor region of a second conductivity type, a third semiconductor region of a first conductivity type, a first electrode, and a contact region. The second semiconductor region is provided on the first semiconductor region. The third semiconductor region is provided on the second semiconductor region. The first electrode has a first and a second portion. The first portion is provided in a first direction and has a lower end being positioned below a lower end of the third semiconductor region. The second portion is in contact with the first portion and is provided on the third semiconductor region. The contact region is provided between the first portion and the second semiconductor region and is electrically connected to the first electrode and the second semiconductor region.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: September 22, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshinori Tsuchiya, Takashi Shinohe
  • Patent number: 9136417
    Abstract: Embodiments generally relate to optoelectronic semiconductor devices such as photovoltaic cells. In one aspect, a method for forming a device includes forming an absorber layer made of gallium arsenide (GaAs) and having one type of doping, and forming an emitter layer made of a different material and having a higher bandgap than the absorber layer. An intermediate layer can be formed between emitter and absorber layers. A heterojunction and p-n junction are formed between the emitter layer and the absorber layer, where the p-n junction is formed at least partially within the different material at a location offset from the heterojunction. A majority of the absorber layer can be outside of a depletion region formed by the p-n junction. The p-n junction causes a voltage to be generated in the cell in response to the cell being exposed to light at a front side.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: September 15, 2015
    Assignee: ALTA DEVICES, INC.
    Inventors: Hui Nie, Brendan M. Kayes, Isik C. Kizilyalli
  • Patent number: 9136338
    Abstract: Disclosed is a sputtering target having a good appearance, which is free from white spots on the surface. The sputtering target is characterized by being composed of an oxide sintered body containing two or more kinds of homologous crystal structures.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: September 15, 2015
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Koki Yano, Hirokazu Kawashima, Kazuyoshi Inoue
  • Patent number: 9136277
    Abstract: A three dimensional stacked semiconductor structure comprises a stack including plural oxide layers and conductive layers arranged alternately, at least a contact hole formed vertically to the oxide layers and the conductive layers, and extending to one of the conductive layers, an insulator formed at the sidewall of the contact hole, a conductor formed in the contact hole and connecting the corresponding conductive layer, and the corresponding conductive layer comprises a silicide. The silicide could be formed at edges or an entire body of the corresponding conductive layer. Besides the silicide, the corresponding conductive layer could, partially or completely, further comprise a conductive material connected to the conductor. The corresponding conductive layer which the contact hole extends to has higher conductivity than other conductive layers. Also, the 3D stacked semiconductor structure could be applied to a fan-out region of a 3D flash memory.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: September 15, 2015
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Erh-Kun Lai, Yen-Hao Shih
  • Patent number: 9136131
    Abstract: A semiconductor structure includes a source region, a drain region, a channel region and a gate region over a bulk silicon substrate. The gate region further includes a dielectric layer and one or more work function layers disposed over the dielectric layer. A first filler material, such as a flowable oxide is provided over the source region and the drain region. A second filler material, such as an organic material, is provided within the gate region. The first filler material and the second filler material are selectively removed to create, source, drain and gate openings. The gate, source and drain openings are filled simultaneously with a metal, such as tungsten, to create a metal gate structure, source contact and drain contact.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: September 15, 2015
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Deepasree Konduparthi, Dinesh Koli
  • Patent number: 9136245
    Abstract: An electronic device comprising a bond pad on a substrate and a wire bonded to the bond pad. The device further comprises an intermetallic compound interface located between the bond pad and the wire and a silicon nitride or silicon carbonyl layer covering the intermetallic compound interface.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: September 15, 2015
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd
    Inventors: John M. DeLucca, Ronald J. Weachock, Barry J. Dutt, Frank A. Baiocchi, John W. Osenbach
  • Patent number: 9136158
    Abstract: A lateral trench MOSFET comprises a dielectric isolation trench formed over a silicon-on-insulator substrate. The lateral trench MOSFET further comprises a first drift region formed between a drain/source region and an insulator, and a second drift region formed between the dielectric isolation trench and the insulator. The dielectric trench and the insulator help to fully deplete the drift regions. The depleted regions can improve the breakdown voltage as well as the on-resistance of the lateral trench MOSFET.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: September 15, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Po-Yu Chen
  • Patent number: 9136409
    Abstract: An optical device includes a first region and an isolating layer which are each provided in a semiconductor substrate. The first region configures a photoelectric converter and includes at least an impurity of a first conductivity type. The isolating layer is configured to inhibit passage of electrons. The isolating layer includes a second region which is below the first region and which includes an impurity of a second conductivity type, a third region which surrounds the first region in plan-view thereof and which includes an impurity of the second conductivity type, and a fourth region which surrounds the second region in plan-view thereof and which is connected to the third region. The fourth region is greater in width than a connecting part of the third region which connects the third region to the fourth region.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: September 15, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Keishi Tachikawa
  • Patent number: 9135992
    Abstract: Methods of forming and operating phase change memory devices include adjusting an activation energy barrier between a metastable phase and a stable phase of a phase change material in a memory cell. In some embodiments, the activation energy barrier is adjusted by applying stress to the phase change material in the memory cell. Memory devices include a phase change memory cell and a material, structure, or device for applying stress to the phase change material in the memory cell. In some embodiments, a piezoelectric device may be used to apply stress to the phase change material. In additional embodiments, a material having a thermal expansion coefficient greater than that of the phase change material may be positioned to apply stress to the phase change material.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: September 15, 2015
    Assignee: MICRON TECHNOLOGY, INC.
    Inventor: Roy E. Meade
  • Patent number: 9131325
    Abstract: An assembly (220) includes a MEMS die (222) and an integrated circuit (IC) die (224) attached to a substrate (226). The MEMS die (222) includes a MEMS device (237) formed on a substrate (242). A packaging process (264) entails forming the MEMS device (237) on the substrate (242) and removing a material portion of the substrate (237) surrounding the device (237) to form a cantilevered substrate platform (246) suspended above the substrate (226) at which the MEMS device (237) resides. The MEMS die (222) is electrically interconnected with the IC die (224). A plug element (314) can be positioned overlying the platform (246). Molding compound (32) is applied to encapsulate the die (222), the IC die (224), and substrate (226). Following encapsulation, the plug element (314) can be removed, and a cap (236) can be coupled to the substrate (242) overlying an active region (244) of the MEMS device (237).
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: September 8, 2015
    Assignee: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Mark E. Schlarmann, Andrew C. McNeil, Hemant D. Desai