Field-effect Transistor (epo) Patents (Class 257/E21.4)

  • Patent number: 10804260
    Abstract: Semiconductor structures and fabrication methods are provided. An exemplary fabrication method includes providing a semiconductor substrate having at least one diode region; forming at least one first fin on the semiconductor substrate in the diode region; forming a first doped layer containing a first type of doping ions having a first conductivity in the first fin; and forming a second doped layer doped containing a second type of doping ions having a second conductivity opposite to the first conductivity on the first doped layer. A size of an interface between the first doped layer and the second doped layer along a width direction of the first fin is greater than a width of the first fin.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: October 13, 2020
    Assignees: Semiconductor Manufacturing International (Shanghai) Corporation, Semiconductor Manufacturing International (Beijing) Corporation
    Inventor: Fei Zhou
  • Patent number: 10727131
    Abstract: The present disclosure describes a method to form silicon germanium (SiGe) source/drain regions with the incorporation of a lateral etch in the epitaxial source/drain growth process. For example, the method can include forming a plurality of fins on a substrate, where each of the plurality of fins has a first width. The SiGe source/drain regions can be formed on the plurality of fins, where each SiGe source/drain region has a second width in a common direction with the first width and a height. The method can also include selectively etching—e.g., via a lateral etch—the SiGe source/drain regions to decrease the second width of the SiGe source/drain regions. By decreasing the width of the SiGe source/drain regions, electrical shorts between neighboring fins can be prevented or minimized. Further, the method can include growing an epitaxial capping layer over the Si/Ge source/drain regions.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: July 28, 2020
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Kun-Mu Li, Chih-Chiang Chang, Wen-Chu Hsiao, Che-Yu Lin, Wei-Siang Yang
  • Patent number: 10636880
    Abstract: A method for fabricating an electrically isolated diamond nanowire includes forming a diamond nanowire on a diamond substrate, depositing a dielectric or a polymer on the diamond nanowire and on the diamond substrate, planarizing the dielectric or the polymer, etching a portion of the planarized dielectric or polymer to expose a first portion of the diamond nanowire, depositing a metal layer to conformably cover the first portion of the diamond nanowire, and implanting ions into a second portion of the diamond nanowire between the first portion of the diamond nanowire and the diamond substrate or at an intersection of the diamond nanowire and the diamond substrate, wherein the ions are implanted at an oblique angle from a first side of the diamond nanowire.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: April 28, 2020
    Assignee: HRL Laboratories, LLC
    Inventors: Biqin Huang, Xiwei Bai
  • Patent number: 10170623
    Abstract: A semiconductor device and a method of fabricating the same, the semiconductor device includes a plurality of fin shaped structures, a trench, a spacing layer and a dummy gate structure. The fin shaped structures are disposed on a substrate. The trench is disposed between the fin shaped structures. The spacing layer is disposed on sidewalls of the trench, wherein the spacing layer has a top surface lower than a top surface of the fin shaped structures. The dummy gate structure is disposed on the fin shaped structures and across the trench.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: January 1, 2019
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: En-Chiuan Liou, Tang-Chun Weng, Chien-Hao Chen
  • Patent number: 9842761
    Abstract: A semiconductor device is provided. The semiconductor device includes a first fin partially surrounded by a first isolation structure and a second fin partially surrounded by a second isolation structure. The second isolation structure has a dopant concentration higher than that of the first isolation structure, and a height difference is between a top surface of the first isolation structure and a top surface of the second isolation structure.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: December 12, 2017
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Tsung-Yu Chiang, Chung-Wei Lin, Kuang-Hsin Chen, Bor-Zen Tien
  • Patent number: 9786505
    Abstract: A semiconductor structure includes a substrate, at least one active semiconductor fin, at least one insulating structure, a gate electrode, and a gate dielectric. The active semiconductor fin is disposed on the substrate. The insulating structure is disposed on the substrate and adjacent to the active semiconductor fin. A top surface of the insulating structure is non-concave and is lower than a top surface of the active semiconductor fin. The gate electrode is disposed over the active semiconductor fin. The gate dielectric is disposed between the gate electrode and the active semiconductor fin.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: October 10, 2017
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Che-Cheng Chang, Po-Chi Wu, Chih-Han Lin, Horng-Huei Tseng
  • Patent number: 9716138
    Abstract: Devices and methods of fabricating integrated circuit devices for dynamically applying bias to back plates and/or p-well regions are provided. One method includes, for instance: obtaining a wafer with a silicon substrate, at least one first oxide layer, at least one silicon layer, and at least one second oxide layer; forming at least one recess in the wafer; depositing at least one third oxide layer over the wafer and filling the at least one recess; depositing a silicon nitride layer over the wafer; and forming at least one opening having sidewalls and a bottom surface within the filled at least one recess. An intermediate semiconductor device is also disclosed.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: July 25, 2017
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Hui Zang, Min-hwa Chi
  • Patent number: 9515072
    Abstract: Present disclosure provides a FinFET structure, including a plurality of fins, a gate, and a first dopant layer. The gate is disposed substantially orthogonal over the plurality of fins, covering a portion of a top surface and a portion of sidewalls of the plurality of fins. The first dopant layer covers the top surface and the sidewalls of a junction portion of a first fin, configured to provide dopants of a first conductive type to the junction portion of the first fin. The junction portion is adjacent to the gate.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: December 6, 2016
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Chun Hsiung Tsai, Chun-Lung Ni, Kei-Wei Chen
  • Patent number: 9508593
    Abstract: The present invention pertains to methods for forming a metal diffusion barrier on an integrated circuit wherein the formation includes at least two operations. The first operation deposits barrier material via PVD or CVD to provide some minimal coverage. The second operation deposits an additional barrier material and simultaneously etches a portion of the barrier material deposited in the first operation. The result of the operations is a metal diffusion barrier formed in part by net etching in certain areas, in particular the bottom of vias, and a net deposition in other areas, in particular the side walls of vias. Controlled etching is used to selectively remove barrier material from the bottom of vias, either completely or partially, thus reducing the resistance of subsequently formed metal interconnects.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: November 29, 2016
    Assignee: Novellus Systems, Inc.
    Inventors: Robert T. Rozbicki, Michal Danek, Erich R. Klawuhn
  • Patent number: 9362178
    Abstract: According to another embodiment, a semiconductor finFET device includes a semiconductor substrate. The finFET device further includes at least one first semiconductor fin on the semiconductor substrate. The first semiconductor fin comprises a first semiconductor portion extending to a first fin top to define a first height, and a first insulator portion interposed between the first semiconductor portion and the semiconductor substrate. A second semiconductor fin on the semiconductor substrate has a second semiconductor portion extending to a second fin top to define a second height, and a second insulator portion interposed between the second semiconductor portion and the semiconductor substrate, the second height being different from the first height.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: June 7, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Qing Cao, Kangguo Cheng, Zhengwen Li, Fei Liu
  • Patent number: 9324792
    Abstract: According to another embodiment, a semiconductor finFET device includes a semiconductor substrate. The finFET device further includes at least one first semiconductor fin on the semiconductor substrate. The first semiconductor fin comprises a first semiconductor portion extending to a first fin top to define a first height, and a first insulator portion interposed between the first semiconductor portion and the semiconductor substrate. A second semiconductor fin on the semiconductor substrate has a second semiconductor portion extending to a second fin top to define a second height, and a second insulator portion interposed between the second semiconductor portion and the semiconductor substrate, the second height being different from the first height.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: April 26, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Qing Cao, Kangguo Cheng, Zhengwen Li, Fei Liu
  • Patent number: 8987077
    Abstract: A method for producing a semiconductor device, includes forming a first carrier transport layer including a Group III nitride semiconductor, forming a mask on a region of the first carrier transport layer, selectively re-growing a second carrier transport layer on an unmasked region of the first carrier transport layer, the second carrier transport layer including a Group III nitride semiconductor, and selectively growing a carrier supply layer on the second carrier transport layer, the carrier supply layer including a Group III nitride semiconductor having a bandgap different from that of the Group III nitride semiconductor of the second carrier transport layer.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: March 24, 2015
    Assignee: Toyota Gosei Co., Ltd.
    Inventor: Toru Oka
  • Patent number: 8987792
    Abstract: Merged active devices on a common substrate are presented. Methods for operating and fabricating such merged active devices are also presented.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 24, 2015
    Assignee: Peregrine Semiconductor Corporation
    Inventors: Jaroslaw Adamski, Chris Olson
  • Patent number: 8975128
    Abstract: Some structures and methods to reduce power consumption in devices can be implemented largely by reusing existing bulk CMOS process flows and manufacturing technology, allowing the semiconductor industry as well as the broader electronics industry to avoid a costly and risky switch to alternative technologies. Some of the structures and methods relate to a Deeply Depleted Channel (DDC) design, allowing CMOS based devices to have a reduced sVT compared to conventional bulk CMOS and can allow the threshold voltage VT of FETs having dopants in the channel region to be set much more precisely. The DDC design also can have a strong body effect compared to conventional bulk CMOS transistors, which can allow for significant dynamic control of power consumption in DDC transistors. Additional structures, configurations, and methods presented herein can be used alone or in conjunction with the DDC to yield additional and different benefits.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: March 10, 2015
    Assignee: SuVolta, Inc.
    Inventors: Scott E. Thompson, Damodar R. Thummalapally
  • Patent number: 8883585
    Abstract: A method is provided for fabricating a fin field-effect transistor. The method includes providing a semiconductor substrate having one or more first fins and second fins; and forming a first doping layer covering the first fins and the second fins. The method also includes forming an isolation layer to isolate adjacent fins; and forming a gate structure stretching across top and sidewalls of the first fins. Further, the method includes forming a source region and a drain region in the fins at both sides of the gate structure; and forming a dielectric layer on the isolation layer. Further, the method also includes forming a first through hole in the dielectric layer to expose a portion of the first doping layer on a top of the second fins; and forming a first conductive via in the first through hole to connect with a bias control voltage.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: November 11, 2014
    Assignee: Semiconductor Manufacturing International (Shanghai) Corporation
    Inventor: Mieno Fumitake
  • Patent number: 8815694
    Abstract: Embodiments include semiconductor-on-insulator (SOI) substrates having SOI layers strained by oxidation of the base substrate layer and methods of forming the same. The method may include forming a strained channel region in a semiconductor-on-insulator (SOI) substrate including a buried insulator (BOX) layer above a base substrate layer and a SOI layer above the BOX layer by first etching the SOI layer and the BOX layer to form a first isolation recess region and a second isolation recess region. A portion of the SOI layer between the first isolation recess region and the second isolation recess region defines a channel region in the SOI layer. A portion of the base substrate layer below the first isolation recess region and below the second isolation recess region may then be oxidized to form a first oxide region and a second oxide region, respectively, that apply compressive strain to the channel region.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: August 26, 2014
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Bruce B. Doris, Balasubramanian S. Haran, Ali Khakifirooz, Pranita Kerber
  • Patent number: 8803276
    Abstract: A structure and method of fabricating electrostatic discharge (EDS) circuitry in an integrated circuit chip by integrating a lateral bipolar, either a p-n-p with a NMOSFET or a n-p-n with a PMOSFET within a triple well. The lateral bipolar preferably includes diodes at the I/O and/or the VDDs of the circuitry.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: August 12, 2014
    Assignee: International Business Machines Corporation
    Inventors: Shunhua Chang, Kiran V. Chatty, Robert J. Gauthier, Mujahid Muhammad
  • Patent number: 8772099
    Abstract: A method of detecting a detection target using a sensor requires a sensor having a transistor selected from the group of field-effect transistors or single electron transistors. The transistor includes a substrate, a source electrode disposed on the substrate and a drain electrode disposed on the substrate, and a channel forming a current path between the source electrode and the drawing electrode; an interaction-sensing gate comprising a specific substance; and a voltage gate. The method includes (a) providing the detection target on the interaction-sensing gate; (b) setting the gate voltage in the voltage gate at a predetermined level; (c) selectively interacting the specific substance with the detection target; (d) when the detection target interacts with the specific substance, changing a gate voltage in the voltage gate to adjust a characteristic of the transistor; and (e) measuring a change in the characteristic of the transistor to determine a presence of the detection target.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: July 8, 2014
    Assignee: Japan Science and Technology Agency
    Inventors: Kazuhiko Matsumoto, Atsuhiko Kojima, Satoru Nagao, Masanori Katou, Yutaka Yamada, Kazuhiro Nagaike, Yasuo Ifuku, Hiroshi Mitani
  • Patent number: 8759923
    Abstract: The present invention provides a semiconductor device structure and a method for manufacturing the same. The method comprises: providing a semiconductor substrate, forming a first insulating layer on the surface of the semiconductor substrate; forming a shallow trench isolation embedded in the first insulating layer and the semiconductor substrate; forming a stripe-type trench embedded in the first insulating layer and the semiconductor substrate; forming a channel region in the trench; forming a gate stack line on the channel region and source/drain regions on opposite sides of the channel region. Embodiments of the present invention are applicable to manufacture of semiconductor devices.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: June 24, 2014
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Huicai Zhong, Qingqing Liang
  • Patent number: 8741756
    Abstract: A method of fabricating a semiconducting device is disclosed. A carbon nanotube is deposited on a substrate of the semiconducting device. A first contact on the substrate over the carbon nanotube. A second contact on the substrate over the carbon nanotube, wherein the second contact is separated from the first contact by a gap. A portion of the substrate in the gap between the first contact and the second contact is removed.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: June 3, 2014
    Assignee: International Business Machines Corporation
    Inventors: Aaron D. Franklin, Shu-jen Han, Joshua T. Smith, Paul M. Solomon
  • Patent number: 8716764
    Abstract: A semiconductor device and a manufacturing method thereof are provided. The fin semiconductor device includes a fin formed on a substrate and an insulating material layer formed on the substrate and surrounding the fin. The fin has a semiconductor layer that has a source region portion and a drain region portion. The fin includes a first channel control region, a second channel control region, and a channel region between the two channel control regions, all of which are positioned between the source region portion and the drain region portion. The two channel control regions may have the same conductivity type, different from the channel region.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: May 6, 2014
    Assignees: Semiconductor Manufacturing International (Shanghai) Corporation, Semiconductor Manufacturing International (Beijing) Corporation
    Inventor: Mieno Fumitake
  • Patent number: 8710498
    Abstract: According to one embodiment, a method of manufacturing a thin-film transistor circuit substrate including forming an oxide semiconductor thin film above an insulative substrate, forming a gate insulation film and a gate electrode which are stacked on a first region of the oxide semiconductor thin film, and exposing from the gate insulation film a second region and a third region of the oxide semiconductor thin film, the second region and the third region being located on both sides of the first region of the oxide semiconductor thin film, forming an interlayer insulation film of silicon nitride including dangling bonds of silicon, the interlayer insulation film covering the second region and the third region of the oxide semiconductor thin film, the gate insulation film and the gate electrode, and forming a source electrode and a drain electrode.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: April 29, 2014
    Assignee: Japan Display Inc.
    Inventors: Tetsuya Shibata, Hajime Watakabe, Atsushi Sasaki, Yuki Matsuura, Muneharu Akiyoshi, Hiroyuki Watanabe
  • Patent number: 8709881
    Abstract: A substrate is provided that has a metallic layer on a substrate surface of a substrate. A film made of a two dimensional (2-D) material, such as graphene, is deposited on a metallic surface of the metallic layer. The metallic layer is dewet and/or removed to provide the film on the substrate surface.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: April 29, 2014
    Assignee: The Regents of the University of California
    Inventors: Yuegang Zhang, Ariel Ismach
  • Patent number: 8674412
    Abstract: A method of fabricating a semiconducting device is disclosed. A carbon nanotube is deposited on a substrate of the semiconducting device. A first contact on the substrate over the carbon nanotube. A second contact on the substrate over the carbon nanotube, wherein the second contact is separated from the first contact by a gap. A portion of the substrate in the gap between the first contact and the second contact is removed.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: March 18, 2014
    Assignee: International Business Machines Corporation
    Inventors: Aaron D. Franklin, Shu-jen Han, Joshua T. Smith, Paul M. Solomon
  • Patent number: 8637374
    Abstract: A self-aligned carbon-nanotube field effect transistor semiconductor device comprises a carbon-nanotube deposited on a substrate, a source and a drain formed at a first end and a second end of the carbon-nanotube, respectively, and a gate formed substantially over a portion of the carbon-nanotube, separated from the carbon-nanotube by a dielectric film.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: January 28, 2014
    Assignee: International Business Machines Corporation
    Inventors: Joerg Appenzeller, Phaedon Avouris, Kevin K. Chan, Philip G. Collins, Richard Martel, Hon-Sum Philip Wong
  • Patent number: 8624313
    Abstract: A semiconductor device includes a semiconductor substrate, a non-volatile semiconductor memory element formed over the semiconductor substrate, including a variable resistance element including a laminate comprising a first electrode, a variable resistance layer, and a second electrode, and a volatile semiconductor memory element formed over the semiconductor substrate, including a capacitance element including a laminate comprising a third electrode, a dielectric layer including a same material as the variable resistance layer, and a fourth electrode.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: January 7, 2014
    Inventor: Kazuhiko Kajigaya
  • Patent number: 8624216
    Abstract: An electronic device includes a substrate supporting mobile charge carriers, insulative features formed on the substrate surface to define first and second substrate areas on either side of the insulative features, the first and second substrate areas being connected by an elongate channel defined by the insulative features, the channel providing a charge carrier flow path in the substrate from the first area to the second area, the conductivity between the first and second substrate areas being dependent upon the potential difference between the areas. The mobile charge carriers can be within at least two modes in each of the three dimensions within the substrate. The substrate can be an organic material. The mobile charge carriers can have a mobility within the range 0.01 cm2/Vs to 100 cm2/Vs, and the electronic device may be an RF device. Methods for forming such devices are also described.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: January 7, 2014
    Assignee: Pragmatic Printing Limited
    Inventor: Aimin Song
  • Patent number: 8618581
    Abstract: A field effect transistor device includes: a reservoir bifurcated by a membrane of three layers: two electrically insulating layers; and an electrically conductive gate between the two insulating layers. The gate has a surface charge polarity different from at least one of the insulating layers. A nanochannel runs through the membrane, connecting both parts of the reservoir. The device further includes: an ionic solution filling the reservoir and the nanochannel; a drain electrode; a source electrode; and voltages applied to the electrodes (a voltage between the source and drain electrodes and a voltage on the gate) for turning on an ionic current through the ionic channel wherein the voltage on the gate gates the transportation of ions through the ionic channel.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: December 31, 2013
    Assignee: International Business Machines Corporation
    Inventors: Hongbo Peng, Stanislav Polonsky, Stephen M. Rossnagel, Gustavo Alejandro Stolovitzky
  • Patent number: 8614466
    Abstract: An apparatus and method are disclosed for electrically directly detecting biomolecular binding in a semiconductor. The semiconductor can be based on electrical percolation of nanomaterial formed in the gate region. In one embodiment of an apparatus, a semiconductor includes first and second electrodes with a gate region there between. The gate region includes a multilayered matrix of electrically conductive material with capture molecules for binding target molecules, such as antibody, receptors, DNA, RNA, peptides and aptamer. The molecular interactions between the capture molecules and the target molecules disrupts the matrix's continuity resulting in a change in electrical resistance, capacitance or impedance. The increase in resistance, capacitance or impedance can be directly measured electronically, without the need for optical sensors or labels.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: December 24, 2013
    Assignees: The United States of America, as Represented by the Secretary, Department of Health and Human Services, University of Maryland, Baltimore County, University of Maryland, College Park
    Inventors: Avraham Rasooly, Minghui Yang, Hugh A. Bruck, Yordan Kostov
  • Patent number: 8604541
    Abstract: This invention discloses a specific superjunction MOSFET structure and its fabrication process. Such structure includes: a drain, a substrate, an EPI, a source, a side-wall isolation structure, a gate, a gate isolation layer and source. There is an isolation layer inside the active area underneath the source. Along the side-wall of this isolation layer, a buffer layer with same doping type as body can be introduced & source can be extended down too to form field plate. Such buffer layer & field plate can make the EPI doping much higher than convention device which results in lower Rdson, better performance, shorter gate so that to reduce both gate charge Qg and gate-to-drain charge Qgd. The process to make such structure is simpler and more cost effective.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: December 10, 2013
    Assignee: Wuxi Versine Semiconductor Corp. Ltd.
    Inventors: Qin Huang, Yuming Bai, Yang Gao
  • Patent number: 8604530
    Abstract: Some structures and methods to reduce power consumption in devices can be implemented largely by reusing existing bulk CMOS process flows and manufacturing technology, allowing the semiconductor industry as well as the broader electronics industry to avoid a costly and risky switch to alternative technologies. Some of the structures and methods relate to a Deeply Depleted Channel (DDC) design, allowing CMOS based devices to have a reduced VT compared to conventional bulk CMOS and can allow the threshold voltage VT of FETs having dopants in the channel region to be set much more precisely. The DDC design also can have a strong body effect compared to conventional bulk CMOS transistors, which can allow for significant dynamic control of power consumption in DDC transistors. Additional structures, configurations, and methods presented herein can be used alone or in conjunction with the DDC to yield additional and different benefits.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: December 10, 2013
    Assignee: SuVolta, Inc.
    Inventors: Scott E. Thompson, Damodar R. Thummalapally
  • Patent number: 8604527
    Abstract: Some structures and methods to reduce power consumption in devices can be implemented largely by reusing existing bulk CMOS process flows and manufacturing technology, allowing the semiconductor industry as well as the broader electronics industry to avoid a costly and risky switch to alternative technologies. Some of the structures and methods relate to a Deeply Depleted Channel (DDC) design, allowing CMOS based devices to have a reduced ?VT compared to conventional bulk CMOS and can allow the threshold voltage VT of FETs having dopants in the channel region to be set much more precisely. The DDC design also can have a strong body effect compared to conventional bulk CMOS transistors, which can allow for significant dynamic control of power consumption in DDC transistors. Additional structures, configurations, and methods presented herein can be used alone or in conjunction with the DDC to yield additional and different benefits.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: December 10, 2013
    Assignee: SuVolta, Inc.
    Inventors: Scott E. Thompson, Damodar R. Thummalapally
  • Patent number: 8597993
    Abstract: A structure and method of fabricating electrostatic discharge (EDS) circuitry in an integrated circuit chip by integrating a lateral bipolar, either a p-n-p with a NMOSFET or a n-p-n with a PMOSFET within a triple well. The lateral bipolar preferably includes diodes at the I/O and/or the VDDs of the circuitry.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: December 3, 2013
    Assignee: International Business Machines Corporation
    Inventors: Shunhua Chang, Kiran V. Chatty, Robert J. Gauthier, Jr., Mujahid Muhammad
  • Patent number: 8558219
    Abstract: A method for forming a nanowire field effect transistor (FET) device includes forming a nanowire over a substrate, forming a liner material around a portion of the nanowire, forming a capping layer on the liner material, forming a first spacer adjacent to sidewalls of the capping layer and around portions of the nanowire, forming a hardmask layer on the capping layer and the first spacer, removing an exposed portion of the nanowire to form a first cavity partially defined by the gate material, epitaxially growing a semiconductor material on an exposed cross section of the nanowire in the first cavity, removing the hardmask layer and the capping layer, forming a second capping layer around the semiconductor material epitaxially grown in the first cavity to define a channel region, and forming a source region and a drain region contacting the channel region.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: October 15, 2013
    Assignee: International Business Machines Corporation
    Inventors: Sarunya Bangsaruntip, Guy Cohen, Amlan Majumdar, Jeffrey W. Sleight
  • Patent number: 8551821
    Abstract: The present invention relates to an enhancement normally off nitride semiconductor device and a method of manufacturing the same. The method includes the steps of: forming a buffer layer on a substrate; forming a first nitride semiconductor layer on the buffer layer; forming a second nitride semiconductor layer on the first nitride semiconductor layer; etching a gate region above the second nitride semiconductor layer up to a predetermined depth of the first nitride semiconductor layer; forming an insulating film on the etched region and the second nitride semiconductor layer; patterning a source/drain region, etching the insulating film in the source/drain region, and forming electrodes in the source/drain region; and forming a gate electrode on the insulating film in the gate region. In this manner, the present invention provides a method of easily implementing a normally off enhancement semiconductor device by originally blocking 2DEG which is generated under a gate region.
    Type: Grant
    Filed: December 4, 2010
    Date of Patent: October 8, 2013
    Assignee: Kyungpook National University Industry-Academic Cooperation Foundation
    Inventors: Jung Hee Lee, Ki Sik Im, Jong Bong Ha
  • Patent number: 8541824
    Abstract: Some structures and methods to reduce power consumption in devices can be implemented largely by reusing existing bulk CMOS process flows and manufacturing technology, allowing the semiconductor industry as well as the broader electronics industry to avoid a costly and risky switch to alternative technologies. Some of the structures and methods relate to a Deeply Depleted Channel (DDC) design, allowing CMOS based devices to have a reduced ?VT compared to conventional bulk CMOS and can allow the threshold voltage VT of FETs having dopants in the channel region to be set much more precisely. The DDC design also can have a strong body effect compared to conventional bulk CMOS transistors, which can allow for significant dynamic control of power consumption in DDC transistors. Additional structures, configurations, and methods presented herein can be used alone or in conjunction with the DDC to yield additional and different benefits.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: September 24, 2013
    Assignee: SuVolta, Inc.
    Inventors: Scott E. Thompson, Damodar R. Thummalapally
  • Patent number: 8525237
    Abstract: Grafting M13 bacteriophage into an array of poly(3,4-ethylenedioxythiophene) (PEDOT) nanowires generated hybrids of conducting polymers and replicable genetic packages (rgps) such as viruses. The incorporation of rgps into the polymeric backbone of PEDOT occurs during electropolymerization via lithographically patterned nanowire electrodeposition (LPNE). The resultant arrays of rgps-PEDOT nanowires enable real-time, reagent-free electrochemical biosensing of analytes in physiologically relevant buffers.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: September 3, 2013
    Assignee: The Regents of the University of California
    Inventors: Gregory A. Weiss, Reginald M. Penner, Jessica A. Arter, David K. Taggart, Keith C. Donavan
  • Patent number: 8524562
    Abstract: A method to reduce (avoid) Fermi Level Pinning (FLP) in high mobility semiconductor compound channel such as Ge and III-V compounds (e.g. GaAs or InGaAs) in a Metal Oxide Semiconductor (MOS) device. The method is using atomic hydrogen which passivates the interface of the high mobility semiconductor compound with the gate dielectric and further repairs defects. The methods further improve the MOS device characteristics such that a MOS device with a quantum well is created.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: September 3, 2013
    Assignee: IMEC
    Inventors: Wei-E Wang, Han Chung Lin, Marc Meuris
  • Patent number: 8492803
    Abstract: A semiconductor structure is fabricated with reduced gate capacitance by thinning of a gate electrode to provide a reduced thickness gate electrode. The gate electrode is thinned after forming a spacer layer adjoining the gate electrode. In addition, the height of the spacer layer may also be reduced. The spacer layer thus has an enhanced horizontal width desired for locating an intrinsic source/drain with respect to an extension region and in particular, an enhanced horizontal width relative to the spacer height. The reduced thickness gate electrode may be fully silicided to provide decreased gate resistance. A raised source/drain layer may be located upon the intrinsic source/drain region. The raised source/drain layer may have a top surface higher than the reduced thickness gate electrode. In addition, the raised source/drain layer may have a top surface higher than the reduced height spacer layer.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: July 23, 2013
    Assignee: International Business Machines Corporation
    Inventors: Ricky S. Amos, Wesley C. Natzle, Siddhartha Panda, Brian L. Tessier
  • Publication number: 20130178019
    Abstract: A method for forming a nanowire field effect transistor (FET) device includes forming a nanowire over a substrate, forming a liner material around a portion of the nanowire, forming a capping layer on the liner material, forming a first spacer adjacent to sidewalls of the capping layer and around portions of the nanowire, forming a hardmask layer on the capping layer and the first spacer, removing an exposed portion of the nanowire to form a first cavity partially defined by the gate material, epitaxially growing a semiconductor material on an exposed cross section of the nanowire in the first cavity, removing the hardmask layer and the capping layer, forming a second capping layer around the semiconductor material epitaxially grown in the first cavity to define a channel region, and forming a source region and a drain region contacting the channel region.
    Type: Application
    Filed: September 7, 2012
    Publication date: July 11, 2013
    Applicant: International Business Machines Corporation
    Inventors: Sarunya Bangsaruntip, Guy M. Cohen, Amlan Majumdar, Jeffrey W. Sleight
  • Patent number: 8482009
    Abstract: A method of forming a SOI substrate, diodes in the SOI substrate and electronic devices in the SOI substrate and an electronic device formed using the SOI substrate. The method of forming the SOI substrate includes forming an oxide layer on a silicon first substrate; ion-implanting hydrogen through the oxide layer into the first substrate, to form a fracture zone in the substrate; forming a doped dielectric bonding layer on a silicon second substrate; bonding a top surface of the bonding layer to a top surface of the oxide layer; thinning the first substrate by thermal cleaving of the first substrate along the fracture zone to form a silicon layer on the oxide layer to formed a bonded substrate; and heating the bonded substrate to drive dopant from the bonding layer into the second substrate to form a doped layer in the second substrate adjacent to the bonding layer.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: July 9, 2013
    Assignee: International Business Machines Corporation
    Inventors: Thomas Walter Dyer, Junedong Lee, Dominic J. Schepis
  • Patent number: 8476684
    Abstract: Transistors having improved breakdown voltages and methods of forming the same are provided herein. In one embodiment, a method of forming a transistor comprises the steps of: forming a drain and a source by doping a semiconductor with a first dopant type to form a first type of semiconductor, the drain and source being separated from one another, wherein the drain comprises a first drain region of a first dopant concentration adjacent a second drain region, such that at least a portion of the second drain region is positioned between the first drain region and the source, and further comprising forming an intermediate region by doping the semiconductor so as to form a second type of semiconductor intermediate the drain and source, the intermediate region spaced apart from the second drain region.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: July 2, 2013
    Assignee: Analog Devices, Inc.
    Inventors: Edward John Coyne, Paul Malachy Daly, Jagar Singh, Seamus Whiston, Patrick Martin McGuinness, William Allan Lane
  • Publication number: 20130119440
    Abstract: A biosensor with a microfluidic structure surrounded by an electrode and methods of forming the electrode around the microfluidic structure of the biosensor are provided. A method includes forming a gate or electrode in a first layer. The method further includes forming a trench in a second layer. The method further includes forming a first metal layer in the trench such that the first metal layer is in electrical contact with the gate or the electrode. The method further includes forming a sacrificial material in the trench. The method further includes forming a second metal layer over the sacrificial material and in contact with the first metal layer. The method further includes removing the sacrificial material such that a microfluidic channel is formed surrounded by the first and the second metal layers.
    Type: Application
    Filed: November 10, 2011
    Publication date: May 16, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kristin M. ACKERSON, John J. ELLIS-MONAGHAN, Jeffrey P. GAMBINO, Yen L. LIM
  • Publication number: 20130082277
    Abstract: The present invention relates to a nitride semiconductor device and a manufacturing method thereof. According to one aspect of the present invention, a nitride semiconductor device including: a nitride semiconductor layer having a 2DEG channel; a source electrode in ohmic contact with the nitride semiconductor layer; a drain electrode in ohmic contact with the nitride semiconductor layer; a plurality of p-type nitride semiconductor segments formed on the nitride semiconductor layer and each formed lengthways from a first sidewall thereof, which is spaced apart from the source electrode, to a drain side; and a gate electrode formed to be close to the source electrode and in contact with the nitride semiconductor layer between the plurality of p-type semiconductor segments and portions of the p-type semiconductor segments extending in the direction of a source-side sidewall of the gate electrode aligned with the first sidewalls of the p-type nitride semiconductor segments is provided.
    Type: Application
    Filed: April 9, 2012
    Publication date: April 4, 2013
    Inventors: Young Hwan PARK, Woo Chul Jeon, Ki Yeol Park, Seok Yoon Hong
  • Publication number: 20130049814
    Abstract: Parallel transistor circuits with reduced effects from common source induction. The parallel transistors include physical gate connections that are located electrically close to one another. The parallel circuits are arranged such that the voltage at the common gate connection resulting from transient currents across common source inductance is substantially balanced. The circuits include switching circuits, converters, and RF amplifiers.
    Type: Application
    Filed: August 28, 2012
    Publication date: February 28, 2013
    Inventors: Michael A. De Rooij, Johan Strydom
  • Patent number: 8384145
    Abstract: Each of a hot-carrier non-volatile memory device and a method for fabricating the hot carrier non-volatile memory device is predicated upon a semiconductor structure and related method that includes a metal oxide semiconductor field effect transistor structure. The semiconductor structure and related method include at least one of: (1) a spacer that comprises a dielectric material having a dielectric constant greater than 7 (for enhanced hot carrier derived charge capture and retention); and (2) a drain region that comprises a semiconductor material that has a narrower bandgap than a bandgap of a semiconductor material from which is comprised a channel region (for enhanced impact ionization and charged carrier generation).
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: February 26, 2013
    Assignee: International Business Machines Corporation
    Inventors: Roger Allen Booth, Jr., Kangguo Cheng, Chandrasekharan Kothandaraman, Chengwen Pei
  • Patent number: 8373206
    Abstract: A biosensor has one or more field effect transistors each comprising a source region and a drain region separated by a channel region and a gate positioned offset and spaced from the channel region. The biosensor also has one or more molecular probes coupled to at least one of the channel region and the offset gate, the one or more molecular probes configured to mate with at least one target. A method for detection of a target is also disclosed. One or more targets are immobilized as an electric field shunt between an offset gate and a channel region for one or more biosensors. A target measurement value is determined in proportion to a number of the one or more biosensors having the electric field shunt.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: February 12, 2013
    Assignee: NTH Tech Corporation
    Inventor: Michael Potter
  • Publication number: 20130032862
    Abstract: Provided is a high voltage semiconductor device. The high voltage semiconductor device includes a substrate that includes a doped well disposed therein. The doped well and the substrate have opposite doping polarities. The high voltage semiconductor device includes an insulating device disposed over the doped well. The high voltage semiconductor device includes an elongate resistor disposed over the insulating device. A non-distal portion of the resistor is coupled to the doped well. The high voltage semiconductor device includes a high-voltage junction termination (HVJT) device disposed adjacent to the resistor.
    Type: Application
    Filed: August 1, 2011
    Publication date: February 7, 2013
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY. LTD.
    Inventors: Ru-Yi Su, Fu-Chih Yang, Chun Lin Tsai, Chih-Chang Cheng, Ruey-Hsin Liu
  • Patent number: 8361894
    Abstract: One illustrative method disclosed herein includes forming first and second FinFET devices in and above a first region and a second region of a semiconducting substrate, respectively, performing a first ion implantation process through a patterned mask layer to implant nitrogen into the second region, removing the patterned mask layer, performing a second ion implantation process to implant oxygen atoms into both the first and second regions, performing a heating process to form a layer of insulating material at least in the first region and performing at least one etching process to define at least one first fin in the first region and to define at least one second fin in the second region, the second fin being taller than the first fin.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: January 29, 2013
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Michael J. Hargrove, Kuldeep Amarnath
  • Patent number: 8343842
    Abstract: A semiconductor process and apparatus to provide a way to reduce plasma-induced damage by applying a patterned layer of photoresist which includes resist openings formed over the active circuit areas as well as additional resist openings formed over inactive areas in order to maintain the threshold coverage level to control the amount of resist coverage over a semiconductor structure so that the total amount of resist coverage is at or below a threshold coverage level. Where additional resist openings are required in order to maintain the threshold coverage level, these openings may be used to create additional charge dissipation structures for use in manufacturing the final structure.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: January 1, 2013
    Assignee: Freescale Semiconductor, Inc.
    Inventors: David M. Schraub, Terry A. Breeden, James D. Legg, Mehul D. Shroff, Ruiqi Tian