Capacitor In Trench Patents (Class 257/301)
  • Patent number: 9576842
    Abstract: A method of manufacturing a semiconductor device includes providing a first semiconductor substrate having a first main surface and an opposing second main surface, and forming a pattern into the first semiconductor substrate. The pattern includes a plurality of trenches defining a plurality of mesas. Each of the plurality of mesas has sidewalls and a free surface formed by material of the first semiconductor substrate. The method further includes forming a cavity in the first semiconductor substrate such that the pattern is recessed in the cavity, forming an oxide layer in the cavity and on the sidewalls and free surfaces of the plurality of mesas, and etching the oxide layer to remove the oxide layer from the free surfaces of the plurality of mesas and at least a portion of the sidewalls of the plurality of mesas.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: February 21, 2017
    Assignee: Icemos Technology, Ltd.
    Inventor: Hugh J. Griffin
  • Patent number: 9559297
    Abstract: The present disclosure relates to a method of making a memory on semiconductor substrate, comprising: at least one data line, at least one selection line, at least one reference line, at least one memory cell comprising a select transistor having a control gate connected to the selection line, a first conduction terminal connected to a variable impedance element, the select transistor and the variable impedance element coupling the reference line to the data line, the select transistor comprising an embedded vertical gate produced in a trench formed in the substrate, and a channel region opposite a first face of the trench, between a first deep doped region and a second doped region on the surface of the substrate coupled to the variable impedance element.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: January 31, 2017
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Philippe Boivin, Julien Delalleau
  • Patent number: 9529242
    Abstract: A display apparatus and a display apparatus manufacturing method are provided with which a favorable display quality can be obtained by preventing an air bubble from entering. The display apparatus in the invention includes a circuit board including a display portion and a peripheral circuit portion provided at the periphery of the display portion, a display sheet layer, an adhesion layer that adheres the display sheet to the circuit board, and a common electrode that is provided on the display sheet and can apply a voltage to the display sheet between the common electrode and the pixel electrode. A surface of the circuit board to which the display sheet is adhered through the adhesion layer has a recess-and-projection structure including recess portions and projecting portions. The recess-and-projection structure is formed so as to reach an outer edge of the peripheral circuit portion, as viewed in a plan view.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: December 27, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Yoshiki Nakashima
  • Patent number: 9520390
    Abstract: An electronic device can include a capacitor structure. In an embodiment, the electronic device can include a buried conductive region, a semiconductor layer having a primary surface, a horizontally-oriented doped region adjacent to the primary surface, an insulating layer overlying the horizontally-oriented doped region, and a conductive electrode overlying the insulating layer. The capacitor structure can include a first capacitor electrode including a vertical conductive region electrically connected to the horizontally-oriented doped region and the buried conductive region. The capacitor structure can further include a capacitor dielectric layer and a second capacitor electrode within a trench. The capacitor structure can be spaced apart from the conductive electrode.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: December 13, 2016
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Gary H. Loechelt, Gordon M. Grivna
  • Patent number: 9521794
    Abstract: A method for producing a microelectronic device including a substrate and a stack having at least one electrically conductive layer and at least one dielectric layer. The method includes formation, from one face of the substrate, of at least one pattern that is in depression with respect to a plane of the face of the substrate, the wall of the pattern having a bottom part and a flank part, the flank part being situated between the bottom part and the face of the substrate, the flank part having at least one inclined wall as far as the face of the substrate. With formation of the stack, the layers of the stack helping at least partially fill in the pattern. The stack is thinned of the stack at least as far as the plane of the face of the substrate so as to completely expose the edge of said at least one electrically conductive layer flush in one plane, and at least one electrical connection member is formed on the substrate in contact with the edge of the at least one electrically conductive layer.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: December 13, 2016
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Henri Sibuet
  • Patent number: 9508790
    Abstract: A method of forming a semiconductor device includes forming an opening having a sidewall in a substrate and forming a first epitaxial layer in the opening. The first epitaxial layer is formed in a first portion of the sidewall without growing in a second portion of the sidewall. A second epitaxial layer is formed in the opening after forming the first epitaxial layer. The second epitaxial layer is formed in the second portion of the sidewall. The first epitaxial layer is removed after forming the second epitaxial layer.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: November 29, 2016
    Assignee: Infineon Technologies AG
    Inventors: Thomas Popp, Stefan Pompl, Rudolf Berger
  • Patent number: 9508725
    Abstract: A semiconductor structure includes a replacement strap for a finFET fin that provides communication between a storage capacitor and the fin. The storage capacitor is located in a deep trench formed in a substrate and the fin is formed on a surface of the substrate. The replacement strap allows for electrical connection of the fin to the storage capacitor and is in direct physical communication with the fin and the storage capacitor. The replacement strap may be formed by removing a sacrificial strap and merging epitaxially grown material from the fin and epitaxially grown material from the capacitor. The epitaxially grown material grown from the fin grows at a slower rate relative to the epitaxially grown material grown from the capacitor. By removing the sacrificial strap prior to forming the replacement strap, epitaxial overgrowth that may cause shorts between adjacent capacitors is limited.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: November 29, 2016
    Assignee: International Business Machines Corporation
    Inventors: Veeraraghavan S. Basker, Alexander Reznicek
  • Patent number: 9496343
    Abstract: A semiconductor structure is provided according to a method in which an aspect ratio trapping process is employed. The structure includes a semiconductor substrate comprising a first semiconductor material having a first lattice constant. A first layer of second semiconductor material formed on the substrate, the first layer having a second lattice constant that is greater than the first lattice constant. A second layer of a semi-insulating, third semiconductor material is formed atop a top surface of the first layer. A transistor device is formed on top of the second layer. An eDRAM structure is connected electronically with a channel region of the transistor device, the eDRAM structure extending from the channel region of the transistor device to a sub-surface below a top surface of the semiconductor substrate.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: November 15, 2016
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Bruce B. Doris, Ali Khakifirooz, Alexander Reznicek
  • Patent number: 9484341
    Abstract: A capacitor circuit formed by a plurality of capacitors using metal electrodes formed on a substrate is provided, such that the capacitance of the capacitor can be adjusted with higher precision as compared to the conventional art. The MOM capacitor includes a plurality of MOM (Metal-Oxide-Metal) capacitors respectfully formed by pairs of metal electrodes facing each other through an insulating film on a substrate. The MOM capacitor circuit is formed by at least one capacitor element in a manner that each of the pairs of the metal electrodes of the MOM capacitors is connected to a first terminal and a second terminal through a connecting conductor; and at least one switch element, connected to the plurality of metal electrodes and at least one of the first terminal and the second terminal, wherein a capacitance of the MOM capacitor circuit is adjusted by turning on/off the switch element.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: November 1, 2016
    Assignee: Powerchip Technology Corporation
    Inventors: Shozo Kawabata, Nobuhiko Ito
  • Patent number: 9484426
    Abstract: Techniques for reducing the specific contact resistance of metal-semiconductor (group IV) junctions by interposing a monolayer of group V or group III atoms at the interface between the metal and the semiconductor, or interposing a bi-layer made of one monolayer of each, or interposing multiple such bi-layers. The resulting low specific resistance metal—group IV semiconductor junctions find application as a low resistance electrode in semiconductor devices including electronic devices (e.g., transistors, diodes, etc.) and optoelectronic devices (e.g., lasers, solar cells, photodetectors, etc.) and/or as a metal source and/or drain region (or a portion thereof) in a field effect transistor (FET). The monolayers of group III and group V atoms are predominantly ordered layers of atoms formed on the surface of the group IV semiconductor and chemically bonded to the surface atoms of the group IV semiconductor.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: November 1, 2016
    Assignee: Acorn Technologies, Inc.
    Inventors: Walter A. Harrison, Paul A. Clifton, Andreas Goebel, R. Stockton Gaines
  • Patent number: 9472450
    Abstract: Interconnect structures including a graphene cap located on exposed surfaces of a copper structure are provided. In some embodiments, the graphene cap is located only atop the uppermost surface of the copper structure, while in other embodiments the graphene cap is located along vertical sidewalls and atop the uppermost surface of the copper structure. The copper structure is located within a dielectric material.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: October 18, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Griselda Bonilla, Christos D. Dimitrakopoulos, Alfred Grill, James B. Hannon, Qinghuang Lin, Deborah A. Neumayer, Satoshi Oida, John A. Ott, Dirk Pfeiffer
  • Patent number: 9461247
    Abstract: In fabricating a memory device, a first electrode is provided. An alloy is formed thereon, and the alloy is oxidized to provide an oxide layer. A second electrode is provided on the oxide layer. In a further method of fabricating a memory device, a first electrode is provided. Oxide is provided on the first electrode, and an implantation step in undertaken to implant material in the oxide to form a layer including oxide and implanted material having an oxygen deficiency and/or defects therein. A second electrode is then formed on the layer.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: October 4, 2016
    Assignee: Cypress Semiconductor Corporation
    Inventors: Matthew Buynoski, Seungmoo Choi, Chakravarthy Gopalan, Dongxiang Liao, Christie Marrian
  • Patent number: 9461051
    Abstract: An electronic device may include a substrate, and a plurality of spaced apart pads on the substrate. Each of the pads may includes first, second, third, and fourth sides, the first and third sides may be opposite sides that are substantially straight, and the second and fourth sides may be opposite sides that are curved. Related methods, devices, and structures are also discussed.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: October 4, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je-Min Park, Seok-Hyun Lim, Tae-Yong Song, Hyun-Chul Yoon, Yoo-Sang Hwang, Hyeon-Ok Jung
  • Patent number: 9455269
    Abstract: A semiconductor memory device according to an embodiment comprises: a memory cell array, the memory cell array including: a conductive layer, an inter-layer insulating layer, and a conductive line stacked on a semiconductor substrate in a stacking direction; first and second connecting lines that contact the semiconductor substrate and are electrically connected to the conductive line and that extend in the stacking direction; and a columnar body that penetrates the conductive layer and the inter-layer insulating layer in the stacking direction between the first and second connecting lines and that includes a first semiconductor layer, the semiconductor substrate having: a first impurity region to which a first impurity is added at a place of contact with the first connecting line; and a second impurity region to which a second impurity different from the first impurity is added at a place of contact with the second connecting line.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: September 27, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventor: Kotaro Noda
  • Patent number: 9449652
    Abstract: A device may include a first transistor, a second transistor, and a data element. The first transistor may have a column gate and a channel, and the second transistor may include a row gate that crosses over the column gate, under the column gate, or both. The second transistor may also include another channel, a source disposed near a distal end of a first leg, and a drain disposed near a distal end of a second leg. The column gate may extend between the first leg and the second leg. The channel of the second transistor may be connected to the channel of the first transistor, and the data element may be connected to the source or the drain. Methods, systems, and other devices are contemplated.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: September 20, 2016
    Assignee: Micron Technology, Inc.
    Inventor: Werner Juengling
  • Patent number: 9437475
    Abstract: A method of producing a microelectronic device in a substrate including a first semiconductor layer, a first dielectric layer, and a second semiconductor layer, including: etching a trench through the first semiconductor layer, the first dielectric layer, and a part of the second semiconductor layer, defining one active region, and such that, at the level of the second semiconductor layer, a part of the trench extends under a part of the active region; deposition of one second dielectric layer in the trench; etching the second dielectric layer such that remaining portions of the second dielectric layer forms portions of dielectric material extending under a part of the active region; deposition of a third dielectric layer in the trench such that the trench is filled with the dielectric materials of the second and third dielectric layers and forms an isolation trench.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: September 6, 2016
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Maud Vinet, Sylvie Mignot, Romain Wacquez
  • Patent number: 9437787
    Abstract: A semiconductor light emitting device includes: a semiconductor light emitting element including a transparent substrate; a reflective substrate on which the semiconductor light emitting element is mounted; an adhesive layer containing a fluorescent substance, for fixing the semiconductor light emitting element on the reflective substrate; and a sealing member containing a fluorescent substance, for sealing the semiconductor light emitting element. In the semiconductor light emitting device, the adhesive layer has a thickness equal to or smaller than average particle size of the fluorescent substance contained in the sealing member.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: September 6, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Takeshi Kamikawa
  • Patent number: 9397181
    Abstract: A device is created by forming a layer of dielectric material on a silicon-containing region of a semiconductor substrate. An opening is created through the layer of dielectric material, the opening having a bottom and exposing the silicon-containing region. A metal stack is formed within the opening. The metal stack includes at least a first metal film on the silicon-containing region and a second gettering metal film on the first metal film. The metal stack is annealed to cause oxygen to migrate from the substrate to the gettering metal film. A first liner is formed within the opening. A fill metal is deposited in the opening.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: July 19, 2016
    Assignee: International Business Machines Corporation
    Inventors: Emre Alptekin, Ahmet S. Ozcan, Viraj Y. Sardesai, Kathryn T. Schonenberg, Cung D. Tran
  • Patent number: 9379177
    Abstract: A deep trench capacitor structure including an SOI substrate comprising an SOI layer, a rare earth oxide layer, and a bulk substrate, the rare earth oxide layer is located below the SOI layer and above the bulk substrate, and the rare earth oxide layer insulates the SOI layer from the bulk substrate, and a deep trench capacitor extending from a top surface of the SOI layer, through the rare earth oxide layer, down to a location within the bulk substrate, the rare earth oxide layer contacts the deep trench capacitor at an interface between the rare earth oxide layer and the bulk substrate forming an incline away from the deep trench capacitor.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: June 28, 2016
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Kangguo Cheng, Joseph Ervin, Chengwen Pei, Ravi M. Todi, Geng Wang
  • Patent number: 9379043
    Abstract: Disclosed is a TSV structure having insulating layers with embedded voids, including a chip layer, a dielectric liner and a conductive filler. There is at least a via reentrant from one surface of the semiconductor body of the chip layer. A plurality of air-gap cavities are formed on the sidewall of the via where the cavities have a depth-to-width ratio not less than one. The dielectric liner covers the sidewall of the via without filling into the air-gap cavities. The conductive filler is disposed in the via without filling into the air-gap cavities due to the isolation of the dielectric liner so as to form an air insulating layer with a plurality of enclosed voids embedded between the semiconductor body and the dielectric liner. Accordingly, RC Delay of the TSV structure can be improved.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: June 28, 2016
    Assignee: POWERTECH TECHNOLOGY INC.
    Inventors: Ming-Yi Wang, Chao-Shun Chiu, Yen-Chu Chen
  • Patent number: 9379178
    Abstract: A method for manufacturing a semiconductor device includes a capacitor element in which a capacitance dielectric film is provided between an upper electrode film and a lower electrode film, includes forming the lower electrode film over the semiconductor substrate, forming the capacitance dielectric film over the lower electrode film, and forming the upper electrode film over the capacitance dielectric film, wherein, an entire surface layer of the lower electrode film is formed of a polycrystalline titanium nitride. At the portion of the capacitance dielectric film where directly contacting the entire surface layer of the lower electrode is formed of a polycrystalline metal oxide, and the polycrystalline metal oxide is formed by an ALD method and inherits a crystallinity of the polycrystalline titanium nitride.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: June 28, 2016
    Assignee: Renesas Electronics Corporation
    Inventors: Youichi Yamamoto, Naomi Fukumaki, Misato Sakamoto, Yoshitake Kato
  • Patent number: 9373728
    Abstract: A trench MOS PN junction diode structure includes a first conductive type substrate, a plurality of trenches defined on a face of the first conductive type substrate, a gate oxide layer formed at least on inner sidewalls of the trenches, a polysilicon layer formed in the trenches, a second conductive type low-concentration ion-implanted region formed at least in the first conductive type substrate, a high-concentration ion-implanted region formed below the trenches, and an electrode layer covering the first conductive type substrate, the second conductive type low-concentration ion-implanted region, the gate oxide and the polysilicon layer. The high-concentration ion-implanted region below the trenches provides pinch-off voltage sustention in reversed bias operation to reduce leakage current of the trench MOS PN junction diode structure.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: June 21, 2016
    Assignee: PFC DEVICE HOLDINGS LIMITED
    Inventor: Mei-Ling Chen
  • Patent number: 9368399
    Abstract: A semiconductor device includes a semiconductor substrate including an active region defined by a device isolation film; a gate electrode filled in the active region; a bit line contact structure coupled to an active region between the gate electrodes; and a line-type bit line electrode formed over the bitline contact structure. The bit line contact structure includes a bit line contact formed over the active region; and an ohmic contact layer formed over the bit line contact.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: June 14, 2016
    Assignee: SK HYNIX INC.
    Inventor: Min Soo Yoo
  • Patent number: 9362288
    Abstract: One semiconductor device includes an active region extending in a first direction, and first, second, and third semiconductor pillars which are provided upright relative to a main surface of the active region and disposed side by side in succession in the first direction; and between the first semiconductor pillar and the second semiconductor pillar, a first gate insulating film in contact with a side surface of the first semiconductor pillar, a first gate electrode in contact with the first gate insulating film, a second gate insulating film in contact with a side surface of the second semiconductor pillar, a second gate electrode in contact with the second gate insulating film, and a first embedded insulating film located between the first and second gate electrodes; and between the second and third semiconductor pillars, a second embedded insulating film in contact with the side surfaces of the second and third semiconductor pillars.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: June 7, 2016
    Assignee: PS4 LUXCO S.A.R.L.
    Inventor: Mitsunari Sukekawa
  • Patent number: 9362376
    Abstract: Techniques for reducing the specific contact resistance of metal-semiconductor (group IV) junctions by interposing a monolayer of group V or group III atoms at the interface between the metal and the semiconductor, or interposing a bi-layer made of one monolayer of each, or interposing multiple such bi-layers. The resulting low specific resistance metal-group IV semiconductor junctions find application as a low resistance electrode in semiconductor devices including electronic devices (e.g., transistors, diodes, etc.) and optoelectronic devices (e.g., lasers, solar cells, photodetectors, etc.) and/or as a metal source and/or drain region (or a portion thereof) in a field effect transistor (FET). The monolayers of group III and group V atoms are predominantly ordered layers of atoms formed on the surface of the group IV semiconductor and chemically bonded to the surface atoms of the group IV semiconductor.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: June 7, 2016
    Assignee: Acorn Technologies, Inc.
    Inventors: Walter A Harrison, Paul A. Clifton, Andreas Goebel, R. Stockton Gaines
  • Patent number: 9349789
    Abstract: A deep trench (DT) opening is provided in a semiconductor substrate and then conducting carbon nanotubes are formed within the DT. Each conducting carbon nanotube is coated with a high k dielectric material and thereafter the remaining volume of the DT is filled with a conductive material.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: May 24, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Reinaldo A. Vega
  • Patent number: 9343320
    Abstract: Dummy deep trenches can be formed within a logic device region in which logic devices are to be formed while deep trench capacitors are formed within a memory device region. Semiconductor fins are formed over a top surface prior to forming trenches, and disposable material is filled around said semiconductor fins. A top surface of said disposable filler material layer can be coplanar with a top surface of said semiconductor fins, which eases deep trench formation. Conductive material portions of the dummy deep trenches can be recessed to avoid electrical contact with semiconductor fins within the logic device region, while an inner electrode of each deep trench can contact a semiconductor fin within the memory device region. A dielectric material portion can be formed above each conductive material portion of a dummy deep trench.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: May 17, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Kangguo Cheng, Joseph Ervin, Juntao Li, Chengwen Pei, Geng Wang
  • Patent number: 9343417
    Abstract: An integrated circuit includes a bottom substrate, a metal layer disposed over the bottom substrate and a hollow metal pillar disposed on the metal layer. The metal layer and the hollow metal pillar are electrically connected.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: May 17, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chang-Pin Huang, Hsien-Ming Tu, Hsien-Wei Chen, Tung-Liang Shao, Ching-Jung Yang, Yu-Chia Lai
  • Patent number: 9337200
    Abstract: After formation of semiconductor fins in an upper portion of a bulk semiconductor substrate, a shallow trench isolation layer is formed, which includes a dielectric material and laterally surround lower portions of each semiconductor fin. Trenches are formed between lengthwise sidewalls of neighboring pairs of semiconductor fins. Portions of the shallow trench isolation layer laterally surrounding each trench provide electrical isolation between the buried plate and access transistors. A strap structure can be formed by etching a via cavity overlying a portion of each trench and a source region of the corresponding access transistor, and filling the via cavity with a conductive material. A trench top oxide structure electrically isolates an inner electrode of each trench capacitor from an overlying gate line for the access fin field effect transistor.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: May 10, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Herbert L. Ho, Ravikumar Ramachandran, Reinaldo A. Vega
  • Patent number: 9318175
    Abstract: A word line driver circuit may include a first active region, a second active region spaced apart from the first active region in a first direction and spaced apart from the first active region in a first direction and spaced apart from the first active region in a second direction, which is substantially perpendicular to the first direction, first contacts formed at both ends of each of the first and second active regions, second contacts formed in the first and second active regions between the first contacts, a gate region between the first contact formed on a second end of the first active region and the second contact and between the first contact formed on a first end of the second active region and the second contact in a straight line, counterclockwise surrounding a part of the second contact formed in the first active region, and clockwise surrounding a part of the second contact formed in the second active region.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: April 19, 2016
    Assignee: SK Hynix Inc.
    Inventor: Sung-Soo Chi
  • Patent number: 9305997
    Abstract: A method for making a semiconductor device may include forming a first dielectric layer above a semiconductor substrate, forming a first trench in the first dielectric layer, filling the first trench with electrically conductive material, removing upper portions of the electrically conductive material to define a lower conductive member with a recess thereabove, forming a filler dielectric material in the recess to define a second trench. The method may further include filling the second trench with electrically conductive material to define an upper conductive member, forming a second dielectric layer over the first dielectric layer and upper conductive member, forming a first via through the second dielectric layer and underlying filler dielectric material to the lower conductive member, and forming a second via through the second dielectric layer to the upper conductive member.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: April 5, 2016
    Assignee: STMICROELECTRONICS, INC.
    Inventor: John H Zhang
  • Patent number: 9287272
    Abstract: A high-k dielectric metal trench capacitor and improved isolation and methods of manufacturing the same is provided. The method includes forming at least one deep trench in a substrate, and filling the deep trench with sacrificial fill material and a poly material. The method further includes continuing with CMOS processes, comprising forming at least one transistor and back end of line (BEOL) layer. The method further includes removing the sacrificial fill material from the deep trenches to expose sidewalls, and forming a capacitor plate on the exposed sidewalls of the deep trench. The method further includes lining the capacitor plate with a high-k dielectric material and filling remaining portions of the deep trench with a metal material, over the high-k dielectric material. The method further includes providing a passivation layer on the deep trench filled with the metal material and the high-k dielectric material.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: March 15, 2016
    Assignee: International Business Machines Corporation
    Inventors: Roger A. Booth, Jr., Kangguo Cheng, Joseph Ervin, Chengwen Pei, Ravi M. Todi, Geng Wang
  • Patent number: 9281369
    Abstract: A semiconductor device and a method for manufacturing the same are disclosed, which can form a gate electrode material only in a recess of a buried gate cell structure, improve a Gate Induced Drain Leakage (GIDL) of a gate electrode material and a junction (i.e., drain region), prevent the gate electrode material from overlapping with the junction (i.e., drain region), and adjust the depth of junction, thereby improving channel resistance. The method for manufacturing a semiconductor device includes forming a device isolation region defining an active region over a semiconductor substrate, burying a gate electrode material in the semiconductor substrate, forming a gate electrode pattern by etching the gate electrode material, wherein the gate electrode pattern is formed at sidewalls of the active region including a source region, and forming a capping layer in the exposed active region.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: March 8, 2016
    Assignee: SK HYNIX INC.
    Inventor: Hee Jung Yang
  • Patent number: 9275989
    Abstract: One illustrative integrated circuit product disclosed herein includes a metal-1 metallization layer positioned above a semiconducting substrate, a capacitor positioned between a surface of the substrate and a bottom of the metal-1 metallization layer, wherein the capacitor includes a plurality of conductive plates that are oriented in a direction that is substantially normal relative to the surface of the substrate, and at least one region of insulating material positioned between the plurality of conductive plates.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: March 1, 2016
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Kok Yong Yiang, Patrick R. Justison
  • Patent number: 9275862
    Abstract: Methods, apparatuses and devices related to the manufacturing of compensation devices are provided. In some cases, an n/p-codoped layer is deposited for calibration purposes to minimize a net doping concentration. In other cases, alternatingly n- and p-doped layers are then deposited. In other embodiments, an n/p-codoped layer is deposited in a trench where n- and p-dopants have different diffusion behavior. To obtain different doping profiles, a heat treatment may be performed.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: March 1, 2016
    Assignee: Infineon Technologies Austria AG
    Inventors: Anton Mauder, Hans Weber, Klemens Pruegl
  • Patent number: 9269781
    Abstract: According to one embodiment, a semiconductor device includes a first, a second, a third, a fourth semiconductor region, a control electrode, and an insulating film. The first region contains silicon carbide. The second region is provided on the first region and contains silicon carbide. The third region is provided on the second region and contains silicon carbide. The fourth region is provided on the third region and contains silicon carbide. The control electrode is provided in a trench. The trench is formed in the fourth, the third, and the second semiconductor region. The insulating film is provided between a side surface of the trench and the control electrode. The insulating film contains a high-dielectric constant region. The high-dielectric constant region contacts with at least the third semiconductor region. The high-dielectric constant region has a higher dielectric constant than a dielectric constant of silicon oxide.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: February 23, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Keiko Ariyoshi, Takuma Suzuki, Takashi Shinohe
  • Patent number: 9263448
    Abstract: A semiconductor device includes: a first active region defined by a recess contained in a device isolation film of a semiconductor substrate belonging to a first region and a second region, in a peripheral region including the first region, the second region, and a third region; a second active region defined by the device isolation film contained in the semiconductor substrate of the third region; a buried metal layer buried in the recess; a first conductive layer formed over the semiconductor substrate of the first region; and a second conductive layer formed over the semiconductor substrate of the second region, wherein the first conductive layer or the second conductive layer is formed over the semiconductor substrate of the third region. A three-dimensional dual gate is formed in a peripheral region, such that performance or throughput of transistors is maximized even in the peripheral region.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: February 16, 2016
    Assignee: SK HYNIX INC.
    Inventors: Min Soo Yoo, Yun Ik Son
  • Patent number: 9263453
    Abstract: A semiconductor structure is provided according to a method in which an aspect ratio trapping process is employed. The structure includes a semiconductor substrate comprising a first semiconductor material having a first lattice constant. A first layer of second semiconductor material formed on the substrate, the first layer having a second lattice constant that is greater than the first lattice constant. A second layer of a semi-insulating, third semiconductor material is formed atop a top surface of the first layer. A transistor device is formed on top of the second layer. An eDRAM structure is connected electronically with a channel region of the transistor device, the eDRAM structure extending from the channel region of the transistor device to a sub-surface below a top surface of the semiconductor substrate.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: February 16, 2016
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Bruce B. Doris, Ali Khakifirooz, Alexander Reznicek
  • Patent number: 9245799
    Abstract: A semiconductor device includes a substrate having a top surface. A semiconductor circuit defines a circuit area on the top surface of the substrate. An interconnect is spaced apart from the circuit area and extends from the top surface into the substrate. The interconnect includes a sidewall formed of an electrically insulating material. An opening is provided in the sidewall.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: January 26, 2016
    Assignee: Intel Deutschland GmbH
    Inventor: Hans-Joachim Barth
  • Patent number: 9245973
    Abstract: A method for manufacturing a semiconductor device having a field-effect transistor, including forming a trench in a semiconductor substrate, forming a first insulating film in the trench, forming an intrinsic polycrystalline silicon film over the first insulating film, and introducing first conductive type impurities into the intrinsic polycrystalline silicon film to form a first conductive film. The first conductive film is etched to form a first gate electrode in the trench. Next, a second insulating film is formed in the trench above the first insulating film and the first gate electrode, and a first conductivity type doped polycrystalline silicon film, having higher impurity concentration than the first gate electrode is formed over the second insulating film. The doped polycrystalline silicon film, upper part of the trench ton form a second gate electrode.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: January 26, 2016
    Assignee: Renesas Electronics Corporation
    Inventors: Yoshito Nakazawa, Yuji Yatsuda
  • Patent number: 9240324
    Abstract: A method to prevent a gate contact from electrically connecting to a source contact for a plurality of memory cells on a substrate. The method includes depositing and etching gate material to partially fill a space between the pillars and to form a word line for the memory cells, etching a gate contact region for the word line between the pair of pillars, forming a spacer of electrically insulating material in the gate contact region, and depositing a gate contact between the pair of pillars to be in electrical contact with the gate material such that the spacer surrounds the gate contact.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: January 19, 2016
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Matthew J. BrightSky, Chung H. Lam, Gen P. Lauer
  • Patent number: 9236387
    Abstract: A semiconductor device capable of increasing ON current while reducing channel resistance and allowing transistors to operate independently and stably, having a fin formed to protrude from the bottom of a gate electrode trench, a gate insulating film covering the surfaces of the gate electrode trench and the fin, a gate electrode embedded in a lower part of the gate electrode trench and formed to stride over the fin via the gate insulating film, a first impurity diffusion region arranged on a first side face, and a second impurity diffusion region arranged on a second side face.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: January 12, 2016
    Assignee: PS4 Luxco S.a.r.l.
    Inventors: Kiyonori Oyu, Kensuke Okonogi, Kazuto Mori
  • Patent number: 9224740
    Abstract: A method of deep trench isolation which includes: forming a semiconductor on insulator (SOI) substrate comprising a bulk semiconductor substrate, a buried insulator layer and a semiconductor layer on the buried insulator layer (SOI layer), one portion of the SOI substrate having a dynamic random access memory buried in the bulk semiconductor substrate (eDRAM) and a deep trench fin contacting the eDRAM and a second portion of the SOI substrate having an SOI fin in contact with the buried insulator layer; conformally depositing sequential layers of oxide, high-k dielectric material and sacrificial oxide on the deep trench fin and the SOI fin; stripping the sacrificial oxide over the SOI fin to expose the high-k dielectric material over the SOI fin; stripping the exposed high-k dielectric material over the SOI fin to expose the oxide layer over the SOI fin.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: December 29, 2015
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Sean M. Polvino, Shahab Siddiqui
  • Patent number: 9219150
    Abstract: Methods of forming a semiconductor structure include providing a multi-layer substrate having an epitaxial base layer overlying a strained primary semiconductor layer above a buried oxide layer. Elements within the epitaxial base layer are used to alter a strain state in the primary semiconductor layer within a first region of the multi-layer substrate without altering a strain state in the primary semiconductor layer within a second region of the multi-layer substrate. A first plurality of transistor channel structures are formed that each comprise a portion of the primary semiconductor layer within the first region of the multi-layer substrate, and a second plurality of transistor channel structures are formed that each comprise a portion of the primary semiconductor layer within the second region of the multi-layer substrate. Semiconductor structures fabricated by such methods may include transistor channel structures having differing strain states.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: December 22, 2015
    Assignee: SOITEC
    Inventors: Bich-Yen Nguyen, Mariam Sadaka, Christophe Maleville
  • Patent number: 9172254
    Abstract: A source of environmental pollution is the burning of fuel by the transportation vehicles (e.g., cars, trucks). The use of electric vehicles (EVs) is perceived as an essential step towards better utilization of energy. Current EVs make use of an electric engine and a battery pack that provides energy to that engine. The technology of electric engines is well developed because of the common use of such engines in trains, submarines and industrial facilities. But, while the battery packs used in EVs have made a lot of progress in the last couple of years, these battery packs still have problems. These battery packs are expansive, heavy, and limited in the amount of energy that they can provide. This obstacle is a major factor that limits the use of EVs today in the mass market. Described herein is an improved EV battery pack system.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: October 27, 2015
    Assignee: EVchip Energy Ltd.
    Inventor: Avraham Ganor
  • Patent number: 9171902
    Abstract: Methods of pitch doubling of asymmetric features and semiconductor structures including the same are disclosed. In one embodiment, a single photolithography mask may be used to pitch double three features, for example, of a DRAM array. In one embodiment, two wordlines and a grounded gate over field may be pitch doubled. Semiconductor structures including such features are also disclosed.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: October 27, 2015
    Assignee: Micron Technology, Inc.
    Inventors: Kunal R. Parekh, John K. Zahurak
  • Patent number: 9153591
    Abstract: DRAM trench capacitors formed by, inter alia, deposition of conductive material into a trench or doping the semiconductor region in which the trench is defined.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: October 6, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Mayank T. Bulsara, Matthew T. Currie, Anthony J. Lochtefeld
  • Patent number: 9105602
    Abstract: An embedded capacitor is provided that includes a substrate having a dielectric-filled window. A metal-insulator-metal structure lines a plurality of vias extending through the dielectric-filled window and covers at least partially opposing sides of the dielectric-filled window.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: August 11, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Jon Bradley Lasiter, Ravindra Vaman Shenoy, Donald William Kidwell, Jr.
  • Patent number: 9087735
    Abstract: A semiconductor device includes first conductive layers and first interlayer insulating layers stacked alternately with each other, at least one second conductive layer and at least one second interlayer insulating layer formed on the first conductive layers and the first interlayer insulating layers and stacked alternately with each other, a first semiconductor layer passing through the first conductive layers and the first interlayer insulating layers and including polysilicon, and a second semiconductor layer coupled to the first semiconductor layer and passing through the at least one second conductive layer the at least one second interlayer insulating layer, wherein the second semiconductor layer includes silicon germanium.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: July 21, 2015
    Assignee: SK Hynix Inc.
    Inventors: Ki Hong Lee, Seung Ho Pyi, Jin Ho Bin
  • Patent number: 9059031
    Abstract: A top semiconductor layer and conductive cap structures over deep trench capacitors are simultaneously patterned by an etch. Each patterned portion of the conductive cap structures constitutes a conductive cap structure, which laterally contacts a semiconductor material portion that is one of patterned remaining portions of the top semiconductor layer. Gate electrodes are formed as discrete structures that are not interconnected. After formation and planarization of a contact-level dielectric layer, passing gate lines are formed above the contact-level dielectric layer in a line level to provide electrical connections to the gate electrodes. Gate electrodes and passing gate lines that are electrically connected among one another constitute a gate line that is present across two levels.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: June 16, 2015
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Babar A. Khan, Effendi Leobandung