Stacked Capacitor Patents (Class 257/306)
  • Patent number: 8957467
    Abstract: A semiconductor device includes: a transistor including source and drain diffusion-layers, a gate insulating film and a gate electrode; first and second plugs formed in a first interlayer-insulating film and connected to the source and drain diffusion-layers, respectively; a third plug extending through a second interlayer-insulating film and connected to the first plug; a first interconnection-wire formed on the second interlayer-insulating film and connected to the third plug; a second interconnection-wire formed on a third interlayer-insulating film and intersecting the first interconnection-wire; a fourth interlayer-insulating film; a hole extending through the fourth, third and second interlayer-insulating films, the hole being formed such that a side surface of the second interconnection-wire is exposed; and a fourth plug filling the hole via an intervening dielectric film and connected to the second plug, wherein a capacitor is formed using the fourth plug, the second interconnection-wire and the diele
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: February 17, 2015
    Assignee: PS4 Luxco S.A.R.L.
    Inventor: Hiroyuki Uchiyama
  • Patent number: 8957466
    Abstract: A semiconductor device may include, but is not limited to: a semiconductor substrate; a memory capacitor; and a first compensation capacitor. The semiconductor substrate has at least first and second regions. The memory capacitor is positioned over the first region. The memory capacitor may include, but is not limited to: a first lower electrode; and a first dielectric film covering inner and outer surfaces of the first lower electrode. The first compensation capacitor is positioned over the second region. The first compensation capacitor includes, but is not limited to: a second lower electrode; a second dielectric film covering an inner surface of the second lower electrode; and a first insulating film covering an outer surface of the second lower electrode.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: February 17, 2015
    Assignee: PS4 Luxco S.a.r.l.
    Inventors: Yoshitaka Nakamura, Yasushi Yamazaki
  • Patent number: 8951901
    Abstract: In sophisticated semiconductor devices, the encapsulation of sensitive gate materials, such as a high-k dielectric material and a metal-containing electrode material, which are provided in an early manufacturing stage may be achieved by forming an undercut gate configuration. To this end, a wet chemical etch sequence is applied after the basic patterning of the gate layer stack, wherein at least ozone-based and hydrofluoric acid-based process steps are performed in an alternating manner, thereby achieving a substantially self-limiting removal behavior.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: February 10, 2015
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Sven Beyer, Berthold Reimer, Falk Graetsch
  • Patent number: 8952437
    Abstract: The present invention is generally directed to a DRAM cell design with folded digitline sense amplifier. In one illustrative embodiment, a memory array having a plurality of memory cells having an effective size of 6F2 is disclosed which has a plurality of dual bit active areas, each of the active areas having a substantially longitudinal axis, and a plurality of digitlines arranged in a folded digitline architecture, wherein the active areas are positioned such that the longitudinal axis of the active areas is oriented at an angle with respect to a centerline of the digitlines.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: February 10, 2015
    Assignee: Micron Technology, Inc.
    Inventors: Fei Wang, Anton P. Eppich
  • Patent number: 8952436
    Abstract: A DRAM memory device includes at least one memory cell including a transistor having a first electrode, a second electrode and a control electrode. A capacitor is coupled to the first electrode. At least one electrically conductive line is coupled to the second electrode and at least one second electrically conductive line is coupled to the control electrode. The electrically conductive lines are located between the transistor and the capacitor. The capacitor can be provided above a fifth metal level.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: February 10, 2015
    Assignee: STMicroelectronics (Crolles 2) SAS
    Inventors: Sébastien Cremer, Frédérìc Lalanne, Marc Vernet
  • Patent number: 8945962
    Abstract: In a method for manufacturing a semiconductor device including a transistor and a conductive film over a substrate, a first insulating film and a second insulating film are formed over the transistor and the conductive film sequentially. Then, an opening and a recessed portion are formed in the second insulating film using one multi-tone photomask, wherein the opening is deeper than the recessed portion in the second insulating film. By using the opening, a first contact hole exposing one of the electrodes of the transistor is formed through the first and second insulating films and, by using the recessed portion, a second contact hole exposing the first insulating film is formed through the second insulating film. Moreover, an electrode is formed on and in contact with the one of the electrodes in the first contact hole and the first insulating film in the second contact hole.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: February 3, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Yoshiyuki Kurokawa, Yasuhiro Jinbo, Satoshi Kobayashi, Daisuke Kawae
  • Patent number: 8946800
    Abstract: To provide a semiconductor device featuring reduced variation in capacitor characteristics. In the semiconductor device, a protective layer is provided at the periphery of the upper end portion of a recess (hole). This protective layer has a dielectric constant higher than that of an insulating layer placed in the same layer as the protective layer and configuring a multilayer wiring layer placed in a logic circuit region.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: February 3, 2015
    Assignee: Renesas Electronics Corporation
    Inventors: Ippei Kume, Kenichiro Hijioka, Naoya Inoue, Hiroyuki Kunishima, Manabu Iguchi, Hiroki Shirai
  • Patent number: 8941162
    Abstract: A semiconductor device includes a semiconductor substrate having a first groove, a word line in the first groove, and a buried insulating film in the first groove. The buried insulating film covers the word line. The buried insulating film comprises a silicon nitride film.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: January 27, 2015
    Assignee: PS4 Luxco S.A.R.L.
    Inventor: Mitsunari Sukekawa
  • Patent number: 8941163
    Abstract: A DRAM device includes plural N-channel MIS transistors arranged in a matrix over a P well, and a plurality of capacitors formed corresponding to the plurality of N-channel MIS transistors, and plural word lines formed corresponding to each row of the plurality of N-channel MIS transistors, and a plurality of bit lines formed corresponding to each column of the plurality of N-channel MIS transistors, and a P+ diffusion layer formed extending in the direction that the plurality of word lines extend and supplied with a p well voltage potential.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: January 27, 2015
    Assignee: Renesas Electronics Corporation
    Inventors: Ichirou Mizuguchi, Hiroshi Furuta
  • Patent number: 8941165
    Abstract: Methods are provided for fabricating semiconductor devices having capacitors, which prevent lower electrodes of the capacitors from breaking or collapsing and which provide increased capacitance of the capacitors. For instance, a method includes forming a first insulating layer on a semiconductor substrate, forming a first hole in the first insulating layer, forming a contact plug in the first hole, forming a second insulating layer having a landing pad, wherein the landing pad contacts an upper surface of the contact plug, forming an etch stop layer on the landing pad and the second insulating layer, forming a third insulating layer on the etch stop layer; forming a third hole through the third insulating layer and etch stop layer to expose the landing pad, selectively etching the exposed landing pad, forming a lower electrode on the selectively etched landing pad, and then forming a capacitor by forming a dielectric layer and an upper electrode on the lower electrode.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: January 27, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Il Cho, Seung-Young Son, Chang-Jin Kang, Kyeong-Koo Chi, Ji-Chul Shin
  • Patent number: 8936982
    Abstract: A method for fabricating a semiconductor device includes etching a semiconductor substrate to form bulb-type trenches that define a plurality of active regions in the semiconductor substrate; forming a supporter in each of the bulb-type trenches; dividing each active region, of the plurality of active regions, into a pair of body lines by forming a trench through each active region; and forming a bit line in each body line of the pair of body lines.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: January 20, 2015
    Assignee: SK hynix Inc.
    Inventors: Heung-Jae Cho, Eui-Seong Hwang, Eun-Shil Park
  • Publication number: 20150014759
    Abstract: A semiconductor device includes a dielectric structure which has an opening exposing a surface of a substrate; and a conductive structure which is formed in the opening, wherein the conductive structure comprises: a first conductive pattern recessed in the opening; a second conductive pattern covering a top surface and sidewalls of the first conductive pattern; an air gap defined between sidewalls of the opening and the second conductive pattern; and a third conductive pattern capping the second conductive pattern and the air gap.
    Type: Application
    Filed: November 15, 2013
    Publication date: January 15, 2015
    Applicant: SK hynix Inc.
    Inventors: Nam-Yeal LEE, Seung-Jin YEOM
  • Patent number: 8928057
    Abstract: A method including providing fins etched from a semiconductor substrate and covered by an oxide layer and a nitride layer, the oxide layer being located between the fins and the nitride layer, removing a portion of the fins to form an opening, forming a dielectric spacer on a sidewall of the opening, and filling the opening with a fill material, wherein a top surface of the fill material is substantially flush with a top surface of the nitride layer. The method may further include forming a deep trench capacitor in-line with one of the fins, removing the nitride layer to form a gap between the fins and the fill material, wherein the fill material has re-entrant geometry extending over the gap, and removing the re-entrant geometry and causing the gap between the fins and the fill material to widen.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: January 6, 2015
    Assignee: International Business Machines Corporation
    Inventors: William Cote, Johnathan E. Faltermeier, Babar A. Khan, Ravikumar Ramachandran, Theodorus E. Standaert, Xinhui Wang
  • Patent number: 8921911
    Abstract: A vertical semiconductor charge storage structure includes a substrate, at least one lower electrode, a dielectric layer and an upper electrode. The lower electrode includes a lower conductor, and a first side conductor and a second side conductor connected to the lower conductor. The first side conductor and the second side conductor are parallel to each other and form an included angle with the lower conductor. A height of the first side conductor from the substrate is greater than a height of the second side conductor from the substrate. The dielectric layer and the upper electrode are sequentially formed on surfaces of the substrate and the lower electrode. Accordingly, by forming the first side conductor and the second side conductor at different heights, an aperture ratio is increased to reduce difficulty in filling or deposition in subsequent processes to further enhance an overall yield rate.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: December 30, 2014
    Assignee: Rexchip Electronics Corporation
    Inventors: Pin-Yuan Yu, Yi-Chun Shao, Chien-Hua Chu
  • Publication number: 20140367757
    Abstract: Capacitor structures capable of providing both low-voltage capacitors and high-voltage capacitors are described herein. In one embodiment, a capacitor structure comprises a low-voltage capacitor and a high-voltage capacitor. The low-voltage capacitor comprises a first electrode formed from a first metal layer, a second electrode formed from a second metal layer, a third electrode formed from a third metal layer, a first dielectric layer between the first and second electrodes, and a second dielectric layer between the second and third electrodes. The high-voltage capacitor comprises a fourth electrode formed from the first metal layer, a fifth electrode formed from the third metal layer, and a third dielectric layer between the fourth and fifth electrodes, wherein the third dielectric layer is thicker than either the first dielectric layer or the second dielectric layer.
    Type: Application
    Filed: June 13, 2013
    Publication date: December 18, 2014
    Inventors: Renatas Jakushokas, Vaishnav Srinivas, Robert Won Chol Kim
  • Patent number: 8912586
    Abstract: In a semiconductor device, a polysilicon layer of a lower electrode contact plug is removed by a strip process such that the deposition area of a dielectric film is increased and capacitance of a capacitor is assured. A method for manufacturing the semiconductor device is also disclosed.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: December 16, 2014
    Assignee: Hynix Semiconductor Inc.
    Inventor: Chan Woo Kim
  • Patent number: 8912629
    Abstract: A semiconductor device includes a substrate and a plurality of storage nodes on the substrate and extending in a vertical direction relative to the substrate. A lower support pattern is in contact with the storage nodes between a bottom and a top of the storage nodes, the lower support pattern spaced apart from the substrate in the vertical direction, and the lower support pattern having a first maximum thickness in the vertical direction. An upper support pattern is in contact with the storage nodes above the lower support pattern relative to the substrate, the upper support pattern spaced apart from the lower support pattern in the vertical direction, and the lower support pattern having a second maximum thickness in the vertical direction that is greater than the first maximum thickness of the lower support pattern.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: December 16, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: JungWoo Seo
  • Patent number: 8906773
    Abstract: Embodiments of integrated passive devices (e.g., metal insulator metal, or MIM, capacitors) and methods of their formation include depositing a composite electrode over a semiconductor substrate (e.g., on a dielectric layer above the substrate surface), and depositing an insulator layer over the composite electrode. The composite electrode includes an underlying electrode and an overlying electrode deposited on a top surface of the underlying electrode. The underlying electrode is formed from a first conductive material (e.g., AlCuW), and the overlying electrode is formed from a second, different conductive material (e.g., AlCu). The top surface of the underlying electrode may have a relatively rough surface morphology, and the top surface of the overlying electrode may have a relatively smooth surface morphology. For high frequency, high power applications, both the composite electrode and the insulator layer may be thicker than in some conventional integrated passive devices.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: December 9, 2014
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Xiaowei Ren, Wayne R. Burger
  • Patent number: 8901657
    Abstract: Embodiments include but are not limited to apparatuses and systems including an integrated capacitor. An integrated capacitor may include a substrate, a first capacitor plate having four edges, and a second capacitor plate overhanging the four edges of the first capacitor plate and disposed over the first capacitor plate such that the first capacitor plate is disposed between the second capacitor plate and the substrate.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: December 2, 2014
    Assignee: TriQuint Semiconductor, Inc.
    Inventors: Oleh Krutko, Larry Witkowski
  • Patent number: 8901629
    Abstract: A semiconductor device includes a semiconductor substrate divided into a cell region and a peripheral circuit region defined in a first direction, wherein the peripheral circuit region is divided into a first region and a second region defined in a second direction substantially orthogonal to the first direction; gate lines formed over the semiconductor substrate in the cell region and arranged in the second direction; and a capacitor including lower electrodes over the semiconductor substrate, a dielectric layer and an upper electrode, wherein the lower electrodes in the first and second regions, separated from each other in the first direction and coupled to each other in the first region, the dielectric layer is formed along surfaces of the lower electrodes in the second region, and the upper electrode is formed over the dielectric layer.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: December 2, 2014
    Assignee: SK Hynix Inc.
    Inventors: Jung Ryul Ahn, Yun Kyoung Lee
  • Patent number: 8896044
    Abstract: An organic light emitting diode (OLED) display is provided. The OLED displayer includes a capacitor electrode disposed on a substrate. An insulation layer is disposed on the capacitor electrode. A first active layer is disposed on the insulation layer. The first active layer includes a first doped area, a second doped area, and a first channel area disposed between the first doped area and the second doped area. A first gate electrode is disposed on the first channel area of the first active layer. An organic light emitting diode is disposed on the substrate. The organic light emitting diode is electrically coupled to the second doped area of the first active layer. A driving power source line is disposed on the substrate and electrically coupled to the first doped area of the first active layer and to the capacitor.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: November 25, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventor: Ki-Yeol Byun
  • Publication number: 20140339619
    Abstract: Problem: To prevent an excess charge from accumulating in a channel region of a transistor.
    Type: Application
    Filed: May 15, 2014
    Publication date: November 20, 2014
    Applicant: PS4 LUXCO S.A.R.L.
    Inventor: Kazutaka MANABE
  • Patent number: 8890227
    Abstract: Implementations disclosed herein may relate to a memory cell, such as a DRAM memory cell, for example.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: November 18, 2014
    Assignee: AP Memory Corp, USA
    Inventors: Wenliang Chen, Lin Ma
  • Patent number: 8884351
    Abstract: Devices having hybrid-vertical contacts. In certain embodiments, a substrate includes a lower patterned layer that has a target conductor. A hybrid-vertical contact may be disposed directly on the target conductor. The hybrid vertical contact may include a lower-vertical contact directly on the target conductor and an upper-vertical contact directly on the lower-vertical contact. The upper-vertical contact may have an upper width that is greater than a lower width of the lower-vertical contact.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: November 11, 2014
    Assignee: Micron Technology, Inc.
    Inventor: Jonathan Doebler
  • Patent number: 8884344
    Abstract: Embodiments of the invention include methods of forming gate caps. Embodiments may include providing a semiconductor device including a gate on a semiconductor substrate and a source/drain region on the semiconductor substrate adjacent to the gate, forming a blocking region, a top surface of which extends above a top surface of the gate, depositing an insulating layer above the semiconductor device, and planarizing the insulating layer using the blocking region as a planarization stop. Embodiments further include semiconductor devices having a semiconductor substrate, a gate above the semiconductor substrate, a source/drain region adjacent to the gate, a gate cap above the gate that cover the full width of the gate, and a contact adjacent to the source/drain region having a portion of its sidewall defined by the gate cap.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: November 11, 2014
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Ali Khakifirooz, Alexander Reznicek, Raghavasimhan Sreenivasan, Thomas N. Adam
  • Patent number: 8884288
    Abstract: The present invention provides a semiconductor structure for testing MIM capacitors. The semiconductor structure comprises: a first metal layer comprising at least a first circuit area and a second circuit area; a second metal layer located below the first metal layer with a first dielectric layer lying therebetween and connected with the second circuit area; a top plate located within the first dielectric layer closer to the first metal layer and connected with the first circuit area; a bottom plate located within the first dielectric layer closer to the second metal layer and separated from the top plate with an insulation layer therebetween and connected with the second circuit area. The second metal layer is connected with the substrate through a first electric pathway so as to form a second electric pathway from the top plate to the substrate when an electric leakage region exists in the insulation layer.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: November 11, 2014
    Assignee: Shanghai Huali Microelectronics Corporation
    Inventors: Qiang Li, Zhuanlan Sun, Changhui Yang
  • Patent number: 8878273
    Abstract: A semiconductor memory device includes an active region protruding from a substrate. The active region includes first and second doped regions therein and a trench therein separating the first and second doped regions. A buried gate structure extends in a first direction along the trench between first and second opposing sidewalls thereof. A conductive interconnection plug is provided on the first doped region adjacent the first sidewall of the trench, and a conductive landing pad is provided on the second doped region adjacent the second sidewall of the trench. The landing pad has a width greater than that of the second doped region of the active region along the first direction. A conductive storage node contact plug is provided on the landing pad opposite the second doped region. The storage node contact plug has a narrower width than the landing pad along the first direction.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: November 4, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Daeik Kim, Sooho Shin
  • Patent number: 8878338
    Abstract: Capacitor designs for substrates, such as interposers, and methods of manufacture thereof are disclosed. A through via is formed in the interposer, and a capacitor is formed between a lower level metallization layer and a higher level metallization layer. The capacitor may be, for example, a planar capacitor with dual capacitor dielectric layers.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: November 4, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chun Hua Chang, Der-Chyang Yeh, Kuang-Wei Cheng, Yuan-Hung Liu, Shang-Yun Hou, Wen-Chih Chiou, Shin-Puu Jeng
  • Patent number: 8878274
    Abstract: A capacitor for use in integrated circuits comprises a layer of conductive material. The layer of conductive material including at least a first portion and a second portion, wherein the first portion and the second portion are arranged in a predetermined pattern relative to one another to provide a maximum amount of capacitance per semiconductor die area.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: November 4, 2014
    Assignee: Micron Technology, Inc.
    Inventors: R. Jacob Baker, Kurt D. Beigel
  • Patent number: 8878272
    Abstract: Methods of fabricating a semiconductor device are provided. The method includes forming a first mold layer on a in a cell region and a peripheral region, forming first storage nodes penetrating the first mold layer in the cell region and a first contact penetrating the first mold layer in the peripheral region, forming a second mold layer on the first mold layer, forming second storage nodes that penetrate the second mold layer to be connected to respective ones of the first storage nodes, removing the second mold layer in the cell and peripheral regions and the first mold layer in the cell region to leave the first mold layer in the peripheral region, and forming a second contact that penetrates a first interlayer insulation layer to be connected to the first contact. Related devices are also provided.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: November 4, 2014
    Assignee: SK Hynix Inc.
    Inventor: Jun Ki Kim
  • Publication number: 20140319592
    Abstract: Implementations disclosed herein may relate to a memory cell, such as a DRAM memory cell, for example.
    Type: Application
    Filed: April 26, 2013
    Publication date: October 30, 2014
    Inventor: AP Memory Corporation, USA
  • Patent number: 8872248
    Abstract: An integrated circuit includes a semiconductor substrate, and an insulation region extending from a top surface of the semiconductor substrate into the semiconductor substrate. An Inter-Layer Dielectric (ILD) is overlying the insulation region. A capacitor includes a first capacitor plate including a first slot contact plug, and a second capacitor plate including a second slot contact plug. The first and the second contact plugs include portions in the ILD. A portion of the ILD between vertical surfaces of the first slot contact plug and the second slot contact plug acts as a capacitor insulator of the capacitor.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: October 28, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yu-Hong Pan, Jen-Pan Wang
  • Patent number: 8866233
    Abstract: An object is to provide a semiconductor device having a novel structure which includes a combination of semiconductor elements with different characteristics and is capable of realizing higher integration. A semiconductor device includes a first transistor, which includes a first channel formation region including a first semiconductor material, and a first gate electrode, and a second transistor, which includes one of a second source electrode and a second drain electrode combined with the first gate electrode, and a second channel formation region including a second semiconductor material and electrically connected to the second source electrode and the second drain electrode.
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: October 21, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Shunpei Yamazaki
  • Patent number: 8866216
    Abstract: A method for fabricating a semiconductor memory device includes defining an active region having a shape protruding upward by forming a trench in a semiconductor substrate; forming an open region obtained by selectively exposing a lower side portion of the active region while forming a sidewall layer along the shape of the active region; covering the open region with a silicon layer; forming an impurity region in the lower side portion of the active region; forming a barrier metal layer on the silicon layer and the active region; forming a bit line metal layer buried in the entire active region; and forming a buried bit line having the barrier metal layer, the bit line metal layer and a silicide metal layer formed between the silicon layer and the barrier metal layer by etching the bit line metal layer up to a portion at which the impurity region is formed.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: October 21, 2014
    Assignee: SK Hynix Inc.
    Inventors: Ga Young Ha, Chang Jun Yoo
  • Publication number: 20140306278
    Abstract: A semiconductor device includes an active body having two sidewalls facing each other in a lateral direction, a junction formed in a sidewall of the two sidewalls, a dielectric layer having an open portion to expose the junction and covering the active body, a junction extension portion having a buried region to fill the open portion, and a bit line coupled to the junction extension portion.
    Type: Application
    Filed: June 27, 2014
    Publication date: October 16, 2014
    Inventors: Sang-Do LEE, Hae-Jung LEE, Kyung-Bo KO
  • Patent number: 8860114
    Abstract: The present disclosure provides an integrated circuit. The integrated circuit includes a substrate having a surface that is defined by a first axis and a second axis perpendicular to the first axis; and a capacitor structure disposed on the substrate. The capacitor structure includes a first conductive component; a second conductive component and a third conductive component symmetrically configured on opposite sides of the first conductive component. The first, second and third conductive components are separated from each other by respective dielectric material.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: October 14, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hsiao-Tsung Yen, Yu-Ling Lin, Chin-Wei Kuo, Ho-Hsiang Chen, Min-Chie Jeng
  • Patent number: 8860110
    Abstract: Semiconductor devices including spacers on sidewalls of conductive lines are provided. The semiconductor device includes bit lines on a semiconductor substrate, a storage node contact plug penetrating an insulation layer between the bit lines, triple-layered bit line spacers between the bit lines and the storage node contact plugs, and storage node electrodes on the storage node contact plugs. Each of the triple-layered bit line spacers includes a first spacer adjacent to one of the bit lines, a third spacer adjacent to the storage node contact plugs and a second spacer between the first and third spacers. The second spacer includes a lower portion having a lower dielectric constant than the first and third spacers and an upper portion having the same material as the first and third spacers. Related methods are also provided.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: October 14, 2014
    Assignee: SK hynix Inc.
    Inventor: Jong Pil Lee
  • Publication number: 20140299928
    Abstract: A semiconductor device may include, but is not limited to, a semiconductor substrate having a first gate groove; a first fin structure underneath the first gate groove; a first diffusion region in the semiconductor substrate, the first diffusion region covering an upper portion of a first side of the first gate groove; and a second diffusion region in the semiconductor substrate. The second diffusion region covers a second side of the first gate groove. The second diffusion region has a bottom which is deeper than a top of the first fin structure.
    Type: Application
    Filed: June 18, 2014
    Publication date: October 9, 2014
    Inventors: Kiyonori OYU, Koji TANIGUCHI, Koji HAMADA, Hiroaki TAKETANI
  • Patent number: 8854865
    Abstract: To increase a storage capacity of a memory module per unit area, and to provide a memory module with low power consumption, a transistor formed using an oxide semiconductor film, a silicon carbide film, a gallium nitride film, or the like, which is highly purified and has a wide band gap of 2.5 eV or higher is used for a DRAM, so that a retention period of potentials in a capacitor can be extended. Further, a memory cell has n capacitors with different capacitances and the n capacitors are each connected to a corresponding one of n data lines, so that a variety of the storage capacitances can be obtained and multilevel data can be stored. The capacitors may be stacked for reducing the area of the memory cell.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: October 7, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Toshihiko Saito
  • Patent number: 8852983
    Abstract: A method for fabrication of capacitive environment sensors is provided in which the sensor elements are integrated in a CMOS structure with electronics through the use of complementary metal oxide semiconductor (CMOS) fabrication methods. Also provided are environment sensors fabricated, for example, by the method, and a measurement system using the environment sensors fabricated by the method. The described method includes etching away one of the metal layers in a CMOS chip to create a cavity. This cavity is then filled with an environment-sensitive dielectric material to form a sensing capacitor between plates formed by the metal adhesion layers or an array of contacts from other metal layers of the CMOS structure. This approach provides improved sensing capabilities in a system that is easily manufactured.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: October 7, 2014
    Assignee: Carnegie Mellon University
    Inventors: Gary Keith Fedder, Nathan Scott Lazarus
  • Patent number: 8847298
    Abstract: In order to form a more stable silicon pillar which can be used for the formation of vertical transistors in DRAM cells, a multi-step masking process is used. In a preferred embodiment, an oxide layer and a nitride layer are used as masks to define trenches, pillars, and active areas in a substrate. Preferably, two substrate etch processes use the masks to form three levels of bulk silicon.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: September 30, 2014
    Assignee: Micron Technology, Inc.
    Inventor: Patrick Thomas
  • Patent number: 8847354
    Abstract: Metal-insulator-metal (MIM) capacitors and methods for fabricating MIM capacitors. The MIM capacitor includes an interlayer dielectric (ILD) layer with apertures each bounded by a plurality of sidewalls and each extending from the top surface of the ILD layer into the first interlayer dielectric layer. A layer stack, which is disposed on the sidewalls of the apertures and the top surface of the ILD layer, includes a bottom conductive electrode, a top conductive electrode, and a capacitor dielectric between the bottom and top conductive electrodes.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: September 30, 2014
    Assignee: International Business Machines Corporation
    Inventors: Michel J. Abou-Khalil, Robert J. Gauthier, Jr., Tom C. Lee, Junjun Li, Souvick Mitra, Christopher S. Putnam, Anthony K. Stamper
  • Patent number: 8841717
    Abstract: In one embodiment, a semiconductor device includes a semiconductor substrate having a first groove; and a plurality of first pillars over the substrate. The plurality of first pillars is disposed beside the first groove. A first insulator is disposed in the first groove. A bit contact is disposed in the first groove and over the first insulator. The bit contact is coupled to side surfaces of the plurality of first pillars.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: September 23, 2014
    Assignee: PS4 Luxco S.A.R.L.
    Inventor: Noriaki Mikasa
  • Patent number: 8836002
    Abstract: A method for fabricating a dynamic random access memory (DRAM) capacitor stack is disclosed wherein the stack includes a first electrode, a dielectric layer, and a second electrode. The first electrode is formed from a conductive binary metal compound and the conductive binary metal compound is annealed in a reducing atmosphere to promote the formation of a desired crystal structure. The binary metal compound may be a metal oxide. Annealing the metal oxide (i.e. molybdenum oxide) in a reducing atmosphere may result in the formation of a first electrode material (i.e. MoO2) with a rutile-phase crystal structure. This facilitates the formation of the rutile-phase crystal structure when TiO2 is used as the dielectric layer. The rutile-phase of TiO2 has a higher k value than the other possible crystal structures of TiO2 resulting in improved performance of the DRAM capacitor.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: September 16, 2014
    Assignee: Intermolecular, Inc.
    Inventors: Karthik Ramani, Hanhong Chen, Wim Deweerd, Nobumichi Fuchigami, Hiroyuki Ode
  • Patent number: 8836079
    Abstract: Metal-on-Metal (MoM) capacitors having laterally displaced layers and related systems and methods are disclosed. In one embodiment, a MoM capacitor includes a plurality of vertically stacked layers that are laterally displaced relative to one another. Lateral displacement of the layers minimizes cumulative surface process variations making a more reliable and uniform capacitor.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: September 16, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Xia Li, Bin Yang
  • Patent number: 8836001
    Abstract: A method for fabricating a semiconductor device includes forming at least one body having two sidewalls by vertically etching a semiconductor substrate, forming a protective layer having open parts that expose portions of the both sidewalls of the body, forming a buffer layer that fills the open parts, and forming a buried bit line in the body by siliciding the buffer layer and a portion of the body between the buffer layer.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: September 16, 2014
    Assignee: SK Hynix Inc.
    Inventors: Eun-Shil Park, Ju-Hyun Myung
  • Publication number: 20140252442
    Abstract: The present disclosure provides one embodiment of a method of forming a tunnel field effect transistor (TFET). The method includes forming a semiconductor mesa on a semiconductor substrate; performing a first implantation to the semiconductor substrate and the semiconductor mesa to form a drain of a first type conductivity; forming a first dielectric layer on the semiconductor substrate and sidewall of the semiconductor mesa; forming a gate stack on the sidewall of the semiconductor mesa and the first dielectric layer; forming a second dielectric layer on the first dielectric layer and the gate stack; and forming, on the semiconductor mesa, a source having a second type conductivity opposite to the first type conductivity. The gate stack includes a gate dielectric and a gate electrode on the gate dielectric. The source, drain and gate stack are configured to form the TFET.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 11, 2014
    Inventors: Harry-Hak-Lay Chuang, Yi-Ren Chen, Chi-Wen Liu, Chao-Hsiung Wang, Ming Zhu
  • Patent number: 8829647
    Abstract: A first electrode layer for a Metal-Insulator-Metal (MIM) DRAM capacitor is formed wherein the first electrode layer contains a conductive metal oxide formed using a high temperature, low pressure ALD process. The high temperature ALD process results in a layer with enhanced crystallinity, higher density, reduced shrinkage, and lower carbon contamination. The high temperature ALD process can be used for either or both the bottom electrode and the top electrode layers.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: September 9, 2014
    Assignee: Intermolecular, Inc.
    Inventors: Hanhong Chen, Edward Haywood, Sandra Malhotra, Hiroyuki Ode
  • Patent number: 8823008
    Abstract: In an organic light emitting diode (OLED) display and a manufacturing method, an organic light emitting diode (OLED) display includes: a substrate; a semiconductor layer pattern formed on the substrate and including a first capacitor electrode; a gate insulating layer covering the semiconductor layer pattern; a first conductive layer pattern formed on the gate insulating layer and including a second capacitor electrode having at least a portion overlapping the first capacitor electrode; an interlayer insulating layer having a capacitor opening exposing a portion of the second capacitor electrode and covering the second capacitor electrode; and a second conductive layer pattern formed on the interlayer insulating layer, wherein the capacitor opening includes a first transverse side wall parallel to and overlapping the second capacitor electrode, a second transverse side wall parallel to and not overlapping the second capacitor electrode, and a longitudinal side wall connecting the first transverse side wall an
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: September 2, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sun Park, Jong-Hyun Park, Yul-Kyu Lee, Dae-Woo Kim
  • Publication number: 20140239363
    Abstract: An integrated circuit includes a semiconductor substrate, and an insulation region extending from a top surface of the semiconductor substrate into the semiconductor substrate. An Inter-Layer Dielectric (ILD) is overlying the insulation region. A capacitor includes a first capacitor plate including a first slot contact plug, and a second capacitor plate including a second slot contact plug. The first and the second contact plugs include portions in the ILD. A portion of the ILD between vertical surfaces of the first slot contact plug and the second slot contact plug acts as a capacitor insulator of the capacitor.
    Type: Application
    Filed: February 22, 2013
    Publication date: August 28, 2014
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Taiwan Semiconductor Manufacturing Company, Ltd.