With Semiconductor Regions Connected To Electrode Carrying Current To Be Rectified, Amplified Or Switched And Such Electrode Being Part Of Semiconductor Device Which Comprises Three Or More Electrodes (epo) Patents (Class 257/E29.029)
  • Patent number: 8928084
    Abstract: An ESD protection device, which is arranged to be active at a triggering voltage (Vt1) for providing ESD protection, comprises a first region of the first conductivity type formed in a semiconductor layer of the first conductivity type, the first region extending from a surface of the semiconductor layer and being coupled to a first current electrode (C) of the semiconductor device, a well region of a second conductivity type formed in the semiconductor layer extending from the surface of the semiconductor layer, and a second region of the second conductivity type formed in the well region, the second region being coupled to a second current electrode (B). The ESD protection device further comprises a floating region of the second conductivity type formed in the semiconductor layer between the first current electrode (C) and the well region and extending from the surface of the semiconductor layer a predetermined depth.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: January 6, 2015
    Assignees: Freescale Semiconductor, Inc., Le Centre National de la Recherché Scientifique (CNRS)
    Inventors: Philippe Renaud, Patrice Besse, Amaury Gendron, Nicolas Nolhier
  • Patent number: 8598596
    Abstract: An optoelectronic semiconductor chip includes a semiconductor layer sequence having at least one doped functional layer having at least one dopant and at least one codopant, wherein the semiconductor layer sequence includes a semiconductor material having a lattice structure, one selected from the dopant and the codopant is an electron acceptor and the other an electron donor, the codopant is bonded to the semiconductor material and/or arranged at interstitial sites, and the codopant at least partly forms no bonding complexes with the dopant.
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: December 3, 2013
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Vincent Grolier, Lutz Hoeppel, Hans-Jürgen Lugauer, Martin Strassburg, Andreas Biebersdorf
  • Patent number: 8569843
    Abstract: A bidirectional switch includes a plurality of unit cells 11 including a first ohmic electrode 15, a first gate electrode 17, a second gate electrode 18, and a second ohmic electrode 16. The first gate electrodes 15 are electrically connected via a first interconnection 31 to a first gate electrode pad 43. The second gate electrodes 18 are electrically connected via a second interconnection 32 to a second gate electrode pad 44. A unit cell 11 including a first gate electrode 17 having the shortest interconnect distance from the first gate electrode pad 43 includes a second gate electrode 18 having the shortest interconnect distance from the second gate electrode pad 44.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: October 29, 2013
    Assignee: Panasonic Corporation
    Inventors: Manabu Yanagihara, Kazushi Nakazawa, Tatsuo Morita, Yasuhiro Uemoto
  • Patent number: 8390124
    Abstract: Provided is a semiconductor device including a substrate, and a first wiring layer, a second wiring layer, and a switch via formed on the substrate. The first wiring layer has first wiring formed therein and the second wiring layer has second wiring formed therein. The switch via connects the first wiring and the second wiring. The switch via includes at least at its bottom a switch element including a resistance change layer. A resistance value of the resistance change layer changes according to a history of an electric field applied thereto.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: March 5, 2013
    Assignee: Renesas Electronics Corporation
    Inventors: Naoya Inoue, Yoshihiro Hayashi, Kishou Kaneko
  • Patent number: 8373248
    Abstract: A device includes a well region over a substrate, and a heavily doped well region over the well region, wherein the well region and the heavily doped well region are of a same conductivity type. A gate dielectric is formed on a top surface of the heavily doped well region. A gate electrode is formed over the gate dielectric. A source region and a drain region are formed on opposite sides of the heavily doped well region. The source region and the drain region have bottom surfaces contacting the well region, and wherein the source region and the drain region are of opposite conductivity types.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: February 12, 2013
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chia-Chung Chen, Chewn-Pu Jou
  • Patent number: 8344463
    Abstract: A bidirectional switch includes a plurality of unit cells 11 including a first ohmic electrode 15, a first gate electrode 17, a second gate electrode 18, and a second ohmic electrode 16. The first gate electrodes 15 are electrically connected via a first interconnection 31 to a first gate electrode pad 43. The second gate electrodes 18 are electrically connected via a second interconnection 32 to a second gate electrode pad 44. A unit cell 11 including a first gate electrode 17 having the shortest interconnect distance from the first gate electrode pad 43 includes a second gate electrode 18 having the shortest interconnect distance from the second gate electrode pad 44.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: January 1, 2013
    Assignee: Panasonic Corporation
    Inventors: Manabu Yanagihara, Kazushi Nakazawa, Tatsuo Morita, Yasuhiro Uemoto
  • Publication number: 20120306044
    Abstract: This invention discloses a semiconductor power device disposed in a semiconductor substrate and having an active cell area and an edge termination area wherein the edge termination area comprises a wide trench filled with a field-crowding reduction filler and a buried field plate buried under a top surface of the semiconductor substrate and laterally extended over a top portion of the field crowding field to move a peak electric field laterally away from the active cell area. In a specific embodiment, the field-crowding reduction filler comprises a silicon oxide filled in the wide trench.
    Type: Application
    Filed: May 31, 2011
    Publication date: December 6, 2012
    Inventors: Madhur Bobde, Sik K. Lui, Anup Bhalla
  • Patent number: 8299450
    Abstract: A non-volatile memory device includes a lower electrode, a phase-change material layer formed on the lower electrode so as to be electrically connected to the lower electrode, and an upper electrode formed on the phase-change material layer so as to be electrically connected to the phase-change material layer. The phase-change material layer includes a phase-change material including a composition represented by the formula (I)A(IIXIIIYIVZ)(1-A), where I is at least one of As and Se, II is at least one of Ge, Si and Sn, III is at least one of Sb and Bi, and IV is at least one of Te and Se, and where 0.001?A?0.3, 0.001?X?0.3, 0.001?Y?0.8, 0.1?Z?0.8, and X+Y+Z=1.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: October 30, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-ho Ahn, Hideki Horii, Soon-oh Park, Young-hyun Kim, Heo-ju Shin, Jin-ho Oh
  • Publication number: 20120097916
    Abstract: The objective of the present invention is to provide a semiconductor device provided with a resistance-variable element having sufficient switching property and exhibiting high reliability and high densification as well as good insulating property. The present invention provides a semiconductor device comprising a resistance-variable element provided within multiple wiring layers on a semiconductor substrate, wherein the resistance-variable element comprises a laminated structure in which a first electrode, a first ion-conductive layer of valve-metal oxide film, a second ion-conductive layer containing oxygen and a second electrode are laminated in this order, and the wiring of the multiple wiring layers also serves as the first electrode.
    Type: Application
    Filed: June 21, 2010
    Publication date: April 26, 2012
    Applicant: NEC CORPORATION
    Inventors: Munehiro Tada, Toshitsugu Sakamoto, Hiromitsu Hada
  • Publication number: 20120074515
    Abstract: A device includes a substrate having a front surface and a back surface; an integrated circuit device at the front surface of the substrate; and a metal plate on the back surface of the substrate, wherein the metal plate overlaps substantially an entirety of the integrated circuit device. A guard ring extends into the substrate and encircles the integrated circuit device. The guard ring is formed of a conductive material. A through substrate via (TSV) penetrates through the substrate and electrically couples to the metal plate.
    Type: Application
    Filed: September 24, 2010
    Publication date: March 29, 2012
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chia-Chung Chen, Chewn-Pu Jou, Sally Liu
  • Publication number: 20110266517
    Abstract: A composition comprising a material at least partially enclosed by a tubular, spherical or planar nanostructure composed of a plurality of peptides, wherein each of the plurality of peptides includes no more than 4 amino acids and whereas at least one of the 4 amino acids is an aromatic amino acid.
    Type: Application
    Filed: July 11, 2011
    Publication date: November 3, 2011
    Applicant: Ramot at Tel-Aviv University Ltd.
    Inventors: Ehud GAZIT, Meital Reches
  • Publication number: 20110133186
    Abstract: A process for manufacturing a semiconductor wafer including SOI-insulation wells includes forming, in a die region of a semiconductor body, buried cavities and semiconductor structural elements, which traverse the buried cavities and are distributed in the die region. The process moreover includes the step of oxidizing selectively first adjacent semiconductor structural elements, arranged inside a closed region, and preventing oxidation of second semiconductor structural elements outside the closed region, so as to form a die buried dielectric layer selectively inside the closed region.
    Type: Application
    Filed: February 8, 2011
    Publication date: June 9, 2011
    Applicant: STMICROELECTRONICS, S.R.L.
    Inventors: Gabriele BARLOCCHI, Pietro CORONA, Flavio Francesco VILLA
  • Patent number: 7924603
    Abstract: A PCRAM memory device having a chalcogenide glass layer, preferably comprising antimony selenide having a stoichiometric formula of about Sb2Se3, and a metal-chalcogenide layer and methods of forming such a memory device.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: April 12, 2011
    Assignee: Micron Technology, Inc.
    Inventor: Kristy A. Campbell
  • Publication number: 20110049666
    Abstract: A guard ring structure for use in a semiconductor device. The guard ring structure includes a semiconductor layer stack having a first layer and a second layer on top of the first layer, gates structures formed in the first layer; and guard rings formed in the first layer. The second layer has a dopant concentration that is higher than the dopant concentration of the first layer. The gates and the guard rings are formed simultaneously using a single mask.
    Type: Application
    Filed: October 7, 2010
    Publication date: March 3, 2011
    Applicant: Northrop Grumman Systems Corporation
    Inventors: John Victor D. VELIADIS, Megan J. Snook
  • Publication number: 20110042776
    Abstract: A guard ring structure for use in a semiconductor device. The guard ring structure includes a semiconductor layer stack having a first layer and a second layer on top of the first layer, gates structures formed in the first layer; and guard rings formed in the first layer. The second layer has a dopant concentration that is higher than the dopant concentration of the first layer. The gates and the guard rings are formed simultaneously using a single mask.
    Type: Application
    Filed: October 7, 2010
    Publication date: February 24, 2011
    Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: JOHN VICTOR D. VELIADIS, MEGAN J. SNOOK
  • Patent number: 7872315
    Abstract: An integrated switching device has a switching IGFET connected between a pair of main terminals, a protector IGFET connected between the drain and gate electrodes of the switching IGFET, and a gate resistor connected between a main control terminal and the gate electrode of the switching IGFET. The protector IGFET has its gate electrode connected to the source electrode of the switching IGFET. The protector IGFET turns on in response to an application of a verse voltage to the switching IGFET thereby protecting the same from a reverse current flow.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: January 18, 2011
    Assignee: Sanken Electric Co., Ltd.
    Inventor: Ryoji Takahashi
  • Patent number: 7825467
    Abstract: A description is given of a normally on semiconductor component having a drift zone, a drift control zone and a drift control zone dielectric arranged between the drift zone and the drift control zone.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: November 2, 2010
    Assignee: Infineon Technologies Austria AG
    Inventors: Armin Willmeroth, Anton Mauder, Franz Hirler
  • Publication number: 20100237334
    Abstract: Triphenylene containing benzo-fused thiophene compounds are provided. Additionally, triphenylene containing benzo-fused furan compounds are provided. The compounds may be useful in organic light emitting devices, particularly as hosts in the emissive layer of such devices, or as materials for enhancement layers in such devices, or both.
    Type: Application
    Filed: August 7, 2008
    Publication date: September 23, 2010
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Bin Ma, Yonggang Wu, Chun Lin, Raymond Kwong
  • Publication number: 20100237457
    Abstract: A semiconductor device includes: a semiconductor layer having a first end portion and a second end portion; a first main electrode provided on the first end portion and electrically connected to the semiconductor layer; a second main electrode provided on the second end portion and electrically connected to the semiconductor layer; a first gate electrode provided via a first gate insulating film in a plurality of first trenches formed from the first end portion toward the second end portion; and a second gate electrode provided via a second gate insulating film in a plurality of second trenches formed from the second end portion toward the first end portion. Spacing between a plurality of the first gate electrodes and spacing between a plurality of the second gate electrodes are 200 nm or less.
    Type: Application
    Filed: March 15, 2010
    Publication date: September 23, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Mitsuhiko KITAGAWA
  • Patent number: 7795638
    Abstract: A cell of a semiconductor device comprises a substrate of n-type with a trench formed in a portion of a first main surface of the substrate and filled with insulator. Two device-feature regions are formed beneath the first main surface of the substrate, the first one at one side and the second one at the other side of the trench. A region of a p-type and/or a region of metal is formed in the first device feature region and is connected to a first electrode. A p-n junction is formed in the second device feature region and the p-region of the p-n junction is connected to a second electrode. A U-shaped region is formed between the two device regions. An IGBT without tail during turning-off can be fabricated with a simple process at a low cost.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: September 14, 2010
    Assignee: University of Electronic Science and Technology
    Inventor: Xingbi Chen
  • Publication number: 20100155878
    Abstract: This invention discloses semiconductor device that includes a top region and a bottom region with an intermediate region disposed between said top region and said bottom region with a controllable current path traversing through the intermediate region. The semiconductor device further includes a trench with padded with insulation layer on sidewalls extended from the top region through the intermediate region toward the bottom region wherein the trench includes randomly and substantially uniformly distributed nano-nodules as charge-islands in contact with a drain region below the trench for electrically coupling with the intermediate region for continuously and uniformly distributing a voltage drop through the current path.
    Type: Application
    Filed: February 24, 2010
    Publication date: June 24, 2010
    Inventors: François Hébert, Tao Feng
  • Publication number: 20100127305
    Abstract: An ESD protection device, which is arranged to be active at a triggering voltage (Vt1) for providing ESD protection, comprises a first region of the first conductivity type formed in a semiconductor layer of the first conductivity type, the first region extending from a surface of the semiconductor layer and being coupled to a first current electrode (C) of the semiconductor device, a well region of a second conductivity type formed in the semiconductor layer extending from the surface of the semiconductor layer, and a second region of the second conductivity type formed in the well region, the second region being coupled to a second current electrode (B). The ESD protection device further comprises a floating region of the second conductivity type formed in the semiconductor layer between the first current electrode (C) and the well region and extending from the surface of the semiconductor layer a predetermined depth.
    Type: Application
    Filed: May 4, 2007
    Publication date: May 27, 2010
    Applicant: Freescale Semiconductor, Inc.
    Inventors: Philippe Renaud, Patrice Besse, Amaury Gendron, Nicolas Nolhier
  • Patent number: 7719001
    Abstract: A semiconductor memory device is disclosed in which a layer containing an organic compound is interposed between a pair of electrodes and, further, a first layer including a first metal oxide and a second layer including a second metal oxide are interposed between the pair of electrodes. One of the two layers including the metal oxide acts as a p-type semiconductor layer and the other acts as an n-type semiconductor layer. The first layer including the first metal oxide and the second layer including the second metal oxide form a p-n junction, which provides rectification characteristic to the semiconductor memory device.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: May 18, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd
    Inventors: Ryoji Nomura, Hajime Tokunaga, Kiyoshi Kato
  • Patent number: 7682992
    Abstract: A PCRAM memory device having a chalcogenide glass layer, preferably comprising antimony selenide having a stoichometric formula of about Sb2Se3, and a metal-chalcogenide layer and methods of forming such a memory device.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: March 23, 2010
    Assignee: Micron Technology, Inc.
    Inventor: Kristy A. Campbell
  • Publication number: 20100038752
    Abstract: An intra-metal capacitor unit cell comprises a first electrode and a second electrode formed in the same device layer. A dielectric layer separates the electrodes. The first electrode is substantially surrounded by the second electrode. Misalignment between the first and second electrodes does not substantively alter the capacitance of the unit cell.
    Type: Application
    Filed: August 15, 2008
    Publication date: February 18, 2010
    Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING, LTD.
    Inventors: Chit Hwei NG, Chaw Sing HO, Kerwin KHU, Sanford CHU
  • Publication number: 20100038751
    Abstract: A deep trench (DT) capacitor comprises a trench in a silicon layer, a buried plate surrounding the trench, a dielectric layer lining the trench, and a node conductor in the trench. The top surface of the poly node is higher than the surface of the silicon layer, so that it is high enough to ensure that a nitride liner used as a CMP etch stop for STI oxide surrounding a top portion of the poly node will be higher than the STI oxide, so that the nitride liner can be removed prior to forming a silicide contact on top of the poly node.
    Type: Application
    Filed: August 14, 2008
    Publication date: February 18, 2010
    Applicant: International Business Machines Corporation
    Inventors: HUILONG ZHU, Babar A. Khan, Xi Li, Joyce C. Liu, Thomas A. Wallner
  • Publication number: 20090159872
    Abstract: Ambipolar conduction can be reduced in carbon nanotube transistors by forming a gate electrode of a metal. Metal sidewall spacers having different workfunctions than the gate electrode may be formed to bracket the metal gate electrode.
    Type: Application
    Filed: January 26, 2009
    Publication date: June 25, 2009
    Inventors: Suman Datta, Jack Kavalieros, Mark L. Doczy, Matthew V. Metz, Marko Radosavljevic, Amlan Majumdar, Justin K. Brask, Robert S. Chau
  • Publication number: 20090134388
    Abstract: A semiconductor device having a metal insulator semiconductor field effect transistor (MISFET) with interface resistance-reduced source/drain electrodes is disclosed. This device includes a p-type MISFET formed on a semiconductor substrate. The p-MISFET has a channel region in the substrate, a gate insulating film on the channel region, a gate electrode on the gate insulating film, and a pair of laterally spaced-apart source and drain electrodes on both sides of the channel region. These source/drain electrodes are each formed of a nickel (Ni)-containing silicide layer. The p-MISFET further includes an interface layer which is formed on the substrate side of an interface between the substrate and each source/drain electrode. This interface layer contains magnesium (Mg), calcium (Ca) or barium (Ba) therein. A fabrication method of the semiconductor device is also disclosed.
    Type: Application
    Filed: September 3, 2008
    Publication date: May 28, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takashi YAMAUCHI, Yoshifumi Nishi, Yoshinori Tsuchiya, Junji Koga, Koichi Kato
  • Patent number: 7538394
    Abstract: High-resistance elements are connected as parts of a control resistor between a switching element and a protecting element immediately near the switching element and between adjacent protecting elements. Paths for high-frequency signals are cut off, and high-frequency signals can be prevented from leaking although there are parasitic capacitances due to the protecting elements being connected. Accordingly, electrostatic breakdown voltage can be improved, and isolation can be prevented from deteriorating.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: May 26, 2009
    Assignee: Sanyo Electric Co., Ltd.
    Inventor: Tetsuro Asano
  • Patent number: 7495296
    Abstract: The present invention relates to a layout of a multi-channel semiconductor integrated circuit and provides a layout of a semiconductor integrated circuit having ternary circuits in order to increase a degree of integration in the semiconductor integrated circuit and stabilize output characteristics. A ternary circuit is formed by arranging a second high-side transistor, a diode, a second level shift circuit on one hand, and a low-side transistor, a first high-side transistor, a first level shift circuit, and a pre-driver on the other, so that each of cells are arranged in a row and an output bonding pad is placed between the second high-side transistor and the low-side transistor, wherein a cell width of the first level shift circuit, second level shift circuit and pre-driver corresponds to a cell width of the low-side transistor.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: February 24, 2009
    Assignee: Panasonic Corporation
    Inventors: Eisaku Maeda, Akihiro Maejima, Hiroki Matsunaga, Jinsaku Kaneda, Masahiko Sasada
  • Publication number: 20090008636
    Abstract: A semiconductor device that includes a phase change material for protecting the device from failure caused by overheating. The semiconductor device is adapted to detect a rapid increase in current due to heat and also adapted to break a circuit in the detected rapid increase in current by depositing a phase change material inside or outside a cell actually operated in the semiconductor device.
    Type: Application
    Filed: July 4, 2008
    Publication date: January 8, 2009
    Inventor: Byung-Ho Lee
  • Publication number: 20080315359
    Abstract: An integrated circuit includes a vertical diode, a first electrode coupled to the vertical diode, and a resistivity changing material coupled to the first electrode. The integrated circuit includes a second electrode coupled to the resistivity changing material and a spacer having a first sidewall contacting a first sidewall of the first electrode and a sidewall of the resistivity changing material.
    Type: Application
    Filed: June 21, 2007
    Publication date: December 25, 2008
    Inventors: Thomas Happ, Jan Boris Philipp
  • Publication number: 20080299771
    Abstract: A method of making a thin film transistor comprising a thin film semiconductor element comprised of a transparent zinc-oxide-based semiconductor material, wherein spaced apart first and second contacts in contact with said material are position on either side of a channel in the thin film semiconductor element such that the elongated sides of the channel are aligned with an underlying gate structure. The method can be accomplished while maintaining the substrate temperature at no more than 300° C. during fabrication.
    Type: Application
    Filed: June 4, 2007
    Publication date: December 4, 2008
    Inventors: Lyn M. Irving, David H. Levy, Andrea C. Childs
  • Publication number: 20080272367
    Abstract: A light-emitting LED device has one or more light-emitting LED elements, including first and second spaced-apart electrodes with one or more light-emitting layers formed there-between, wherein at least one of the electrodes is a transparent electrode. Also included are a first transparent encapsulating layer having a first optical index formed over the transparent electrode opposite the light-emitting layer; a light-scattering layer formed over the first transparent encapsulating layer opposite the transparent electrode; and a second transparent encapsulating layer, having a second optical index lower than the first optical index, formed over the light-scattering layer.
    Type: Application
    Filed: May 1, 2007
    Publication date: November 6, 2008
    Inventor: Ronald S. Cok
  • Publication number: 20080265755
    Abstract: A conjugated or partially conjugated polymer including a structural unit of Formula (I); where T is an aryl or heteroaryl group that may be substituted or unsubstituted, or a C1-C24 alkyl group; R1 is alkyl, alkoxy, aryl group, cyano, or F; and a and b are independently selected from 1, 2 or 3. In addition, a composition of Formula (IV); wherein X is a halogen or a boronate group.
    Type: Application
    Filed: February 23, 2006
    Publication date: October 30, 2008
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Wanglin Yu, Weishi Wu, James J. O'Brien
  • Publication number: 20080237581
    Abstract: An electronic device including in any sequence: (a) a semiconductor layer; and (b) a phase-separated dielectric structure comprising a lower-k dielectric polymer and a higher-k dielectric polymer, wherein the lower-k dielectric polymer is in a higher concentration than the higher-k dielectric polymer in a region of the dielectric structure closest to the semiconductor layer.
    Type: Application
    Filed: April 2, 2007
    Publication date: October 2, 2008
    Applicant: XEROX CORPORATION
    Inventors: Yiliang Wu, Hadi K. Mahabadi, Beng S. Ong, Paul F. Smith
  • Patent number: 7417302
    Abstract: In a method of manufacturing a semiconductor device, a first insulation layer on the substrate is patterned to form a first opening having a first width. A lower electrode is formed along an inner contour of the first opening. A second insulation layer on the first insulation layer is patterned to form a second opening that has a second width greater than the first width and is connected to the first opening with a stepped portion. A dielectric layer is formed on the lower electrode in the first opening, a sidewall of the second opening and a first stepped portion between the first insulation layer and the second insulation layer, so that the electrode layer is covered with the dielectric layer. An upper electrode is formed on the dielectric layer. Accordingly, a leakage current between the lower and upper electrodes is suppressed.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: August 26, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyoung-Woo Lee, Hong-Jae Shin, Jeong-Hoon Ahn, Seung-Man Choi, Byung-Jun Oh, Yoon-Hae Kim
  • Publication number: 20080179698
    Abstract: A piezoresistive sensing structure includes an assembly formed of a semiconductor material and including a cavity and a plurality of piezoresistive elements implanted into the assembly. The assembly includes a central mass coupled to a peripheral frame with a plurality of beams. Each beam is about 15 microns in width and includes one of the piezoresistive elements. The assembly may also include a first wafer having the cavity formed into a first side, and a second wafer with a plurality of beams formed in a first side. The second side of the second wafer is bonded to the first side of the first wafer.
    Type: Application
    Filed: March 28, 2008
    Publication date: July 31, 2008
    Inventors: David B. Rich, Steven M. Crist
  • Publication number: 20080157072
    Abstract: A phase change memory cell is disclosed. The phase change memory cell includes a first thin film spacer and a second thin film spacer. The first thin film spacer defines a sub-lithographic dimension and is electrically coupled to a first electrode. The second thin film spacer defines a sub-lithographic dimension and is electrically coupled between a second electrode and the first thin film spacer. In this regard, the phase change memory cell is formed at a boundary where the first thin film spacer electrically contacts the second thin film spacer.
    Type: Application
    Filed: March 17, 2008
    Publication date: July 3, 2008
    Applicant: Infineon Technologies AG
    Inventor: Shoaib Hasan Zaidi
  • Publication number: 20080142792
    Abstract: A heteroacene compound includes a di-thieno-benzo-thieno-thiophene derivative, in which all six rings may be fused together, an organic thin film including the same, and an electronic device that includes the thin film as a carrier transport layer. The compound of example embodiments may have a compact planar structure to thus realize improved solvent solubility and processability. When the compound is applied to electronic devices, a deposition process or a room-temperature solution process may be applied, and as well, intermolecular packing and stacking may be efficiently realized, resulting in improved electrical properties, including increased charge mobility.
    Type: Application
    Filed: August 8, 2007
    Publication date: June 19, 2008
    Inventors: Jong Il Park, Eun Jeong Jeong, Sang Yoon Lee, Bang Lin Lee, Kook Min Han
  • Publication number: 20080111127
    Abstract: Disclosed are a ferrocene-containing conductive polymer, an organic memory device using the conductive polymer and a method for fabricating the organic memory device. The conductive polymer may include a fluorenyl repeating unit, a thienyl repeating unit and a diarylferrocenyl repeating unit. The organic memory device may possess the advantages of rapid switching time, decreased operating voltage, decreased fabrication costs and increased reliability. Based on these advantages, the organic memory device may be used as a highly integrated, large-capacity memory device.
    Type: Application
    Filed: April 27, 2007
    Publication date: May 15, 2008
    Inventors: Kwang Hee Lee, Tae Llm Choi, Sang Kyun Lee
  • Patent number: 7355258
    Abstract: An electronic circuit is formed by closely spacing metallic gate and drain interconnects to a flexible portion of a source interconnect. A gate voltage results in electrostatic attraction and lateral mechanical movement of the flexible source interconnect portion and causes an electrical short between source and drain. VanderWaals attraction between contacting source and drain can be used to provide volatile switching (springy thicker source portion) and non-volatile switching (limp thinner source portion). In accordance with the invention, an easily fabricated, high speed, low power, radiation hard, temperature independent, integrated reconfigurable electronic circuit with embedded logic and non-volatile memory can be realized. The switch uses patterned interconnect material for its structure and can be incorporated to a 3D layered structure consisting of three dimensional interconnect in which different layers and portions of the circuits are linked through volatile and non-volatile switches.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: April 8, 2008
    Assignee: President and Fellows of Harvard College
    Inventors: Sergio Osvaldo Valenzuela, Douwe Johannes Monsma
  • Patent number: 7332811
    Abstract: A method for forming an electrical interconnect overlying a buried contact region of a substrate is characterized by a deposition of a first polycrystalline silicon layer and the patterning and etching of same to form a via. The via is formed in the first polycrystalline silicon layer to expose the substrate and a second polycrystalline silicon layer is formed in the via to contact the substrate. Portions of the second polycrystalline silicon layer overlying the first polycrystalline silicon layer are removed eliminating any horizontal interface between the two polycrystalline silicon layers. The first polycrystalline silicon layer remaining after the etch is then patterned to form an electrical interconnect.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: February 19, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Martin C. Roberts, Sanh D. Tang
  • Publication number: 20080001256
    Abstract: A method of making a semiconductor device includes the steps of: providing a semiconductor substrate (110, 510, 1010, 1610) having a patterned interconnect layer (120, 520, 1020, 1620) formed thereon; depositing a first dielectric material (130, 530, 1030, 1630) over the interconnect layer; depositing a first electrode material (140, 540, 1040, 1640) over the first dielectric material; depositing a second dielectric material (150, 550, 1050, 1650) over the first electrode material; depositing a second electrode material (160, 560, 1060, 1660) over the second dielectric material; patterning the second electrode material to form a top electrode (211, 611, 1111, 1611) of a first capacitor (210, 710, 1310, 1615); and patterning the first electrode material to form a top electrode (221, 721, 1221, 1621) of a second capacitor (220, 720, 1320, 1625), to form an electrode (212, 712, 1212, 1612) of the first capacitor, and to define a resistor (230, 730, 1330).
    Type: Application
    Filed: September 4, 2007
    Publication date: January 3, 2008
    Applicant: Freescale Semiconductors, Inc.
    Inventors: Thomas Remmel, Sriram Kalpat, Melvy Miller, Peter Zurcher
  • Publication number: 20080001143
    Abstract: A semiconductor memory device is disclosed in which a layer containing an organic compound is interposed between a pair of electrodes and, further, a first layer including a first metal oxide and a second layer including a second metal oxide are interposed between the pair of electrodes. One of the two layers including the metal oxide acts as a p-type semiconductor layer and the other acts as an n-type semiconductor layer. The first layer including the first metal oxide and the second layer including the second metal oxide form a p-n junction, which provides rectification characteristic to the semiconductor memory device.
    Type: Application
    Filed: June 11, 2007
    Publication date: January 3, 2008
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Ryoji Nomura, Hajime Tokunaga, Kiyoshi Kato
  • Publication number: 20070290197
    Abstract: The invention concerns a photoactive nanocomposite (3) comprising at least one donor-acceptor couple of semiconductor elements. One of the elements is made of doped nanowires (7) with sp3 structure, and the other of the elements is an organic compound (8). The elements are supported by a device substrate (1). The invention also concerns a production method. According to a first embodiment, after their growth, the nanowires (7) are retrieved, functionalised and solubilised in the organic component (8). The mixture is deposited by coating on a device substrate. According to a second embodiment, the nanowires (7) are formed on a growth substrate (5) which is also the device substrate. The organic component (8) is combined with the nanowires (7) so as to form an active layer (3). Such a photoactive nanocomposite (3) allows production of a photovoltaic cell.
    Type: Application
    Filed: July 21, 2005
    Publication date: December 20, 2007
    Inventors: Muriel Firon, Bernard Drevillon, Anna Fontcuberta I Morral, Serge Palacin, Pere Roca I Cabarrocas
  • Publication number: 20070029584
    Abstract: An electronic circuit is formed by closely spacing metallic gate and drain interconnects to a flexible portion of a source interconnect. A gate voltage results in electrostatic attraction and lateral mechanical movement of the flexible source interconnect portion and causes an electrical short between source and drain. VanderWaals attraction between contacting source and drain can be used to provide volatile switching (springy thicker source portion) and non-volatile switching (limp thinner source portion). In accordance with the invention, an easily fabricated, high speed, low power, radiation hard, temperature independent, integrated reconfigurable electronic circuit with embedded logic and non-volatile memory can be realized. The switch uses patterned interconnect material for its structure and can be incorporated to a 3D layered structure consisting of three dimensional interconnect in which different layers and portions of the circuits are linked through volatile and non-volatile switches.
    Type: Application
    Filed: August 2, 2005
    Publication date: February 8, 2007
    Inventors: Sergio Valenzuela, Douwe Monsma
  • Publication number: 20060284247
    Abstract: High-speed silicon CMOS circuits and high-power AlGaN/GaN amplifiers are integrated on the same wafer. A thin layer of high resistivity silicon is bonded on a substrate. Following the bonding, an AlGaN/GaN structure is grown over the bonded silicon layer. A silicon nitride or a silicon oxide layer is then deposited over the AlGaN/GaN structure. Following this, a thin layer of silicon is bonded to the silicon nitride/silicon oxide layer. An area for the fabrication of AlGaN/GaN devices is defined, and the silicon is etched away from those areas. Following this, CMOS devices are fabricated on the silicon layer and AlGaN/GaN devices fabricated on the AlGaN/GaN surface.
    Type: Application
    Filed: January 6, 2006
    Publication date: December 21, 2006
    Inventors: Godfrey Augustine, Deborah Partlow, Alfred Turley, Thomas Knight, Jeffrey Hartman
  • Publication number: 20060220179
    Abstract: A method for forming an improved isolation junction in an LDMOS structure to reduce current leakage at high operating Voltages including forming doped regions in a buried layer prior to forming an overlying epitaxial region including doped isolation regions followed by a drive-in process to form a continuous isolation region by intermixing the doped regions formed in the buried layer with the overlying doped isolation regions.
    Type: Application
    Filed: April 1, 2005
    Publication date: October 5, 2006
    Inventors: You-Kuo Wu, Edward Chiang