Dynamic Random Access Memory, Dram, Structure (epo) Patents (Class 257/E27.084)
  • Patent number: 11935917
    Abstract: A method of forming a semiconductor structure includes: a substrate is provided, the substrate at least comprising a conducting layer; a bottom supporting layer and a stacking structure being formed on a top surface of the substrate, the stacking structure including a sacrificial layer and a supporting portion that are sequentially stacked and formed; the stacking structure and the bottom supporting layer are partially etched to expose the conducting layer to form a through hole; the supporting portion of a partial width exposed from a sidewall of the through hole is laterally etched to form an air gap; a protective layer filling the air gap is formed; a lower electrode electrically connected with the conducting layer is formed on the sidewall of the through hole and a sidewall of the protective layer; the sacrificial layer is removed.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: March 19, 2024
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: Chen En Wu
  • Patent number: 11901210
    Abstract: A 3D semiconductor device including: a first level including a plurality of first single-crystal transistors; a plurality of memory control circuits formed from at least a portion of the plurality of first single-crystal transistors; a first metal layer disposed atop the plurality of first single-crystal transistors; a second metal layer disposed atop the first metal layer; a second level disposed atop the second metal layer, the second level including a plurality of second transistors; a third level including a plurality of third transistors, where the third level is disposed above the second level; a third metal layer disposed above the third level; and a fourth metal layer disposed above the third metal layer, where the plurality of second transistors are aligned to the plurality of first single crystal transistors with less than 140 nm alignment error, the second level includes first memory cells, the third level includes second memory cells.
    Type: Grant
    Filed: August 4, 2022
    Date of Patent: February 13, 2024
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Brian Cronquist, Deepak C. Sekar
  • Patent number: 11895821
    Abstract: A semiconductor structure and a manufacturing method thereof are provided. The manufacturing method of the semiconductor structure includes: providing a substrate; forming on an upper surface of the substrate first patterns each including a first main body and a first flank wall covering a sidewall of the first main body; forming a filling layer which covers the first flank wall and fills a gap between adjacent first patterns; and etching a top of each of the first patterns to obtain second main bodies, second flank walls and protrusions located on upper surfaces of the second flank walls, the second flank wall covering a sidewall of the second main body, and a top of the protrusion being at least higher than a top of the second main body.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: February 6, 2024
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventors: Jingwen Lu, Haihan Hung, Bingyu Zhu
  • Patent number: 11875837
    Abstract: A semiconductor device resistant to a high temperature with low power consumption is provided. The semiconductor device includes a first and a second circuit, a first and a second cell, and a first and a second wiring. The first cell includes a first transistor, and the second cell includes a second transistor. The first and the second transistor operate in a subthreshold region. The first cell is electrically connected to the first circuit through the first wiring, the first cell is electrically connected to the second circuit through the second wiring, and the second cell is electrically connected to the second circuit through the second wiring. The first cell sets a current flowing through the first transistor to a first current and the second cell sets a current flowing through the second transistor to a second current. At this time, a potential corresponding to the second current is input from the second wiring to the first cell.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: January 16, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiyuki Kurokawa, Munehiro Kozuma, Takeshi Aoki
  • Patent number: 11871615
    Abstract: A display device includes: a base substrate; a TFT layer including a plurality of pixel circuits arranged; and a light-emitting element layer. Each of the plurality of pixel circuits includes: a TFT including a semiconductor layer, a gate insulating film, and a gate electrode; and a capacitor including the gate electrode, a first inorganic insulating film, and a capacitive electrode. The capacitive electrode extends all around a perimeter of the gate electrode and extends to an outside of the perimeter. An angle formed between an upper surface of the base substrate and at least a part of an end surface in a circumferential direction of the gate electrode not overlapping the semiconductor layer in the plan view is greater than an angle formed between the upper surface of the base substrate and an end surface of the gate electrode overlapping the semiconductor layer in the plan view.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: January 9, 2024
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takao Saitoh, Masahiko Miwa, Yohsuke Kanzaki, Masaki Yamanaka, Yi Sun
  • Patent number: 11825649
    Abstract: The present application discloses a semiconductor device and a method for fabricating the semiconductor device. The semiconductor device includes a first dielectric layer on a substrate; first/second upper short axis portions extending along a first direction, separated from each other, and on the first dielectric layer; a common source region in the substrate and adjacent to the first/second upper short axis portions; a first branch drain region in the substrate, adjacent to the first upper short axis portion, and opposite to the common source region; a second branch drain region in the substrate, adjacent to the second upper short axis portion, and opposite to the common source region; and a top electrode on the first dielectric layer and topographically above the first branch drain region and the second branch drain region. The top electrode, the first dielectric layer, and the first/second branch drain regions together configure a programmable unit.
    Type: Grant
    Filed: September 1, 2021
    Date of Patent: November 21, 2023
    Assignee: NANYA TECHNOLOGY CORPORATION
    Inventor: Hsih-Yang Chiu
  • Patent number: 11810811
    Abstract: A semiconductor device includes a buried metal line disposed in a semiconductor substrate, a first dielectric material on a first sidewall of the buried metal line and a second dielectric material on a second sidewall of the buried metal line, a first multiple fins disposed proximate the first sidewall of the buried metal line, a second multiple fins disposed proximate the second sidewall of the buried metal line, a first metal gate structure over the first multiple fins and over the buried metal line, wherein the first metal gate structure extends through the first dielectric material to contact the buried metal line, and a second metal gate structure over the second multiple fins and over the buried metal line.
    Type: Grant
    Filed: July 20, 2022
    Date of Patent: November 7, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Lei-Chun Chou, Chih-Liang Chen, Jiann-Tyng Tzeng, Chih-Ming Lai, Ru-Gun Liu, Charles Chew-Yuen Young
  • Patent number: 11764171
    Abstract: A semiconductor device includes a first plurality of dies encapsulated by an encapsulant, an interposer over the first plurality of dies, an interconnect structure over and electrically connected to the interposer, and a plurality of conductive pads on a surface of the interconnect structure opposite the interposer. The interposer includes a plurality of embedded passive components. Each die of the first plurality of dies is electrically connected to the interposer. The interconnect structure includes a solenoid inductor in a metallization layer of the interconnect structure.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: September 19, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chen-Hua Yu, Kuo Lung Pan, Tin-Hao Kuo, Hao-Yi Tsai
  • Patent number: 11764217
    Abstract: Disclosed herein is a semiconductor integrated circuit device including a standard cell with a fin extending in a first direction. The fin and a gate line extending in a second direction perpendicular to the first direction and provided on the fin constitute an active transistor. The fin and a dummy gate line provided in parallel with the gate line constitute a dummy transistor. The active transistor shares a node as its source or drain with the dummy transistor.
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: September 19, 2023
    Assignee: SOCIONEXT INC.
    Inventor: Hiroyuki Shimbo
  • Patent number: 11756988
    Abstract: A semiconductor structure includes a trench capacitor, a stacked capacitor, a first electrode plate, and a second electrode plate. The trench capacitor is located in a substrate, in which the trench capacitor has a first conductive structure and a first dielectric structure in contact with the first conductive structure. The stacked capacitor has a second conductive structure and a second dielectric structure in contact with the second conductive structure, in which the stacked capacitor is at least partially aligned with the trench capacitor in an axis vertical to a top surface of the substrate, and the first and second conductive structures are electrically connected. The trench capacitor and the stacked capacitor are electrically connected in parallel between the first and second electrode plates.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: September 12, 2023
    Assignee: NANYA TECHNOLOGY CORPORATION
    Inventors: Ting-Cih Kang, Hsih-Yang Chiu
  • Patent number: 11723187
    Abstract: In a semiconductor device, a first stack is positioned over substrate and includes a first pair of transistors and a second pair of transistors stacked over the substrate. A second stack is positioned over the substrate and adjacent to the first stack. The second stack includes a third pair of transistors and a fourth pair of transistors stacked over the substrate. A first capacitor is stacked with the first and second stacks. A second capacitor is positioned adjacent to the first capacitor and stacked with the first and second stacks. A first group of the transistors in the first and second stacks is coupled to each other to form a static random-access memory cell. A second group of the transistors in the first and second stacks is coupled to the first and second capacitors to form a first dynamic random-access memory (DRAM) cell and a second DRAM cell.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: August 8, 2023
    Assignee: Tokyo Electron Limited
    Inventors: Paul Gutwin, Lars Liebmann, Daniel Chanemougame
  • Patent number: 11723212
    Abstract: In some embodiments, the present disclosure relates to an integrated chip that includes one or more interconnect dielectric layers arranged over a substrate. A bottom electrode is disposed over a conductive structure and extends through the one or more interconnect dielectric layers. A top electrode is disposed over the bottom electrode. A ferroelectric layer is disposed between and contacts the bottom electrode and the top electrode. The ferroelectric layer includes a first lower horizontal portion, a first upper horizontal portion arranged above the first lower horizontal portion, and a first sidewall portion and coupling the first lower horizontal portion to the first upper horizontal portion.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: August 8, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hai-Dang Trinh, Yi Yang Wei, Bi-Shen Lee, Fa-Shen Jiang, Hsun-Chung Kuang, Cheng-Yuan Tsai
  • Patent number: 11721370
    Abstract: To provide a novel semiconductor device.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: August 8, 2023
    Inventors: Tatsuya Onuki, Takanori Matsuzaki, Kiyoshi Kato, Shunpei Yamazaki
  • Patent number: 11716862
    Abstract: A memory device includes a plurality of memory cells. A first memory cell of the plurality of memory cells includes a first write transistor includes a first write gate, a first write source, and a first write drain. A first read transistor includes first read gate, a first read source, a first read drain, and a first body region separating the first read source from the first read drain. The first read source is coupled to the first write source. A first capacitor has a first upper capacitor plate coupled to the first write drain and a first lower capacitor plate coupled to the first body region of the first read transistor.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: August 1, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Katherine H Chiang, Chung-Te Lin
  • Patent number: 11665880
    Abstract: Some embodiments include apparatuses and methods of forming the apparatuses. One of the apparatuses includes a substrate, a conductive plate located over the substrate to couple a ground connection, a data line located between the substrate and the conductive plate, a memory cell, and a conductive line. The memory cell includes a first transistor and a second transistor. The first transistor includes a first region electrically coupled between the data line and the conductive plate, and a charge storage structure electrically separated from the first region. The second transistor includes a second region electrically coupled to the charge storage structure and the data line. The conductive line is electrically separated from the first and second regions and spans across part of the first region of the first transistor and part of the second region of the second transistor and forming a gate of the first and second transistors.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: May 30, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Kamal M. Karda, Karthik Sarpatwari, Haitao Liu, Durai Vishak Nirmal Ramaswamy
  • Patent number: 11616004
    Abstract: A 3D semiconductor device, the device including: a first level including a plurality of first metal layers; a second level, where the second level overlays the first level, where the second level includes at least one single crystal silicon layer, where the second level includes a plurality of transistors, where each transistor of the plurality of transistors includes a single crystal channel, where the second level includes a plurality of second metal layers, where the plurality of second metal layers include interconnections between the transistors of the plurality of transistors, where the second level is overlaid by a first isolation layer; and a connective path between the plurality of transistors and the plurality of first metal layers, where the connective path includes a via disposed through at least the single crystal silicon layer, and where at least one of the plurality of transistors includes a gate all around structure.
    Type: Grant
    Filed: November 28, 2022
    Date of Patent: March 28, 2023
    Assignee: MONOLITHIC 3D INC.
    Inventors: Zvi Or-Bach, Deepak C. Sekar, Brian Cronquist
  • Patent number: 11616065
    Abstract: Semiconductor memory devices are provided. A semiconductor memory device includes a substrate. The semiconductor memory device includes a plurality of memory cell transistors vertically stacked on the substrate. The semiconductor memory device includes a first conductive line connected to a source region of at least one of the plurality of memory cell transistors. The semiconductor memory device includes a second conductive line connected to a plurality of gate electrodes of the plurality of memory cell transistors. Moreover, the semiconductor memory device includes a data storage element connected to a drain region of the at least one of the plurality of memory cell transistors.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: March 28, 2023
    Inventors: Jiyoung Kim, Kiseok Lee, Bong-Soo Kim, Junsoo Kim, Dongsoo Woo, Kyupil Lee, HyeongSun Hong, Yoosang Hwang
  • Patent number: 11562805
    Abstract: Methods, systems, and devices for speculative memory section selection are described. Defective memory components in one memory section may be repaired using repair components in another memory section. Speculative selection of memory sections may be enabled, whereby access lines in multiple memory sections may be selected when a memory command indicating an address in one memory section is received. While the access lines in the multiple memory sections are selected, a determination of whether repair components in another memory section are to be accessed is performed. Based on the determination, the access line in one of the memory sections may be maintained and the access lines in the other memory sections may be deselected.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: January 24, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Richard E. Fackenthal, Jahanshir Javanifard, Duane R. Mills
  • Patent number: 11532624
    Abstract: A semiconductor device may include a plurality of first active fins protruding from a substrate, each of the first active fins extending in a first direction; a second active fin protruding from the substrate; and a plurality of respective first fin-field effect transistors (finFETs) on the first active fins. Each of the first finFETs includes a first gate structure extending in a second direction perpendicular to the first direction, and the first gate structure includes a first gate insulation layer and a first gate electrode. The first finFETs are formed on a first region of the substrate and have a first metal oxide layer as the first gate insulation layer, and a second finFET is formed on the second active fin on a second region of the substrate, and the second finFET does not include a metal oxide layer, but includes a second gate insulation layer that has a bottom surface at the same plane as a bottom surface of the first metal oxide layer.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: December 20, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min-Seok Jo, Jae-Hyun Lee, Jong-Han Lee, Hong-Bae Park, Dong-Soo Lee
  • Patent number: 11527661
    Abstract: A semiconductor device includes a first electrode, a second electrode, a first semiconductor layer of a first conductivity type, a second semiconductor layer of a second conductivity type; a third semiconductor layer of the first conductivity type; a first active region; and a third electrode. The first semiconductor layer is located between the first electrode and the second electrode. The second semiconductor layer is located above the first semiconductor layer. The first active region is next to the second semiconductor layer in a second direction. The first active region includes a first upper portion and a first upper portion. An average value of a width in the second direction of the first lower portion is greater than an average value of a width in the second direction of the first upper portion. The third semiconductor layer is electrically connected with the second electrode.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: December 13, 2022
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventors: Hiroyuki Irifune, Hiroshi Kono, Makoto Mizukami, Shuji Kamata
  • Patent number: 11417706
    Abstract: A semiconductor storage device includes lower and upper bit lines, word lines between the bit lines, and memory cells between the bit lines and the word lines. The memory cells are divided into logical slices and a memory cell from each logical slice is selected when carrying out a read or write operation. A first logical slice includes memory cells, each of which is between one of two bit lines and one of three word lines that are adjacent to each other. The two bit lines include one lower bit line and one upper bit line. A second logical slice includes memory cells, each of which is between one of three bit lines and one of three word lines that are not adjacent to each other. The three bit lines include one lower bit line and two upper bit lines.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: August 16, 2022
    Assignee: KIOXIA CORPORATION
    Inventors: Hiroyuki Hara, Yoshinori Suzuki
  • Patent number: 11163399
    Abstract: A touch panel configured to compensate for negative pixel effect is disclosed. The panel can be configured to increase a capacitive sense signal, indicative of a touching or hovering object, in order to compensate for an increase in negative capacitance when the object is poorly grounded. To perform the compensation, the panel can be configured to have split sense lines so as to increase the number of electric fringe fields forming the sense signal, thereby providing a sense signal that is substantially stronger than the negative capacitance signal. Each sense line can be split into two or more strips.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: November 2, 2021
    Assignee: Apple Inc.
    Inventors: Marduke Yousefpor, Martin Paul Grunthaner
  • Patent number: 10636458
    Abstract: A sense amplifier (SA) comprises a semiconductor substrate having an oxide definition (OD) region, a pair of SA sensing devices, a SA enabling device, and a sense amplifier enabling signal (SAE) line for carrying an SAE signal. The pair of SA sensing devices have the same poly gate length Lg as the SA enabling device, and they all share the same OD region. When enabled, the SAE signal turns on the SA enabling device to discharge one of the pair of SA sensing devices for data read from the sense amplifier.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: April 28, 2020
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yen-Huei Chen, Chien Chi Linus Tien, Kao-Cheng Lin, Jung-Hsuan Chen
  • Patent number: 10497709
    Abstract: A semiconductor device according to an embodiment includes two semiconductor pillars, a connection member connected between the two semiconductor pillars, and a contact connected to the connection member. There is not a conductive member disposed between the two semiconductor pillars.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: December 3, 2019
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Mikiko Mori, Ryota Suzuki, Tatsuya Kato, Wataru Sakamoto, Fumie Kikushima
  • Patent number: 10417947
    Abstract: Fail-operational display devices and methods for controlling such fail-operational display devices are disclosed. More specifically, emissive displays having independently addressable (controllable) light emitting elements fitted with redundant control circuits may be utilized. In the event of a failure, one set of redundant control circuits may be disabled while another set of redundant control circuits may be enabled to keep the display device fail-operational.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: September 17, 2019
    Assignee: Rockwell Collins, Inc.
    Inventors: Donald E. Mosier, Tracy J. Barnidge, Jon J. Freesmeier
  • Patent number: 10396082
    Abstract: Some embodiments include a memory cell having a transistor with a channel region between a first source/drain region and a second source/drain region. A controlled-conductivity region is adjacent the first source/drain region. The controlled-conductivity region has a low-conductivity mode and a high-conductivity mode. The high-conductivity mode has a conductivity at least 106 greater than a conductivity of the low-conductivity mode. The channel region includes a first material having a first bandgap, and the controlled-conductivity region includes a second material having a second bandgap which is greater than the first bandgap. A charge-storage device is electrically coupled to the first source/drain region through the controlled-conductivity region. A bitline is electrically coupled to the second source/drain region.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: August 27, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Gurtej S. Sandhu, Kamal M. Karda
  • Patent number: 10186311
    Abstract: A semiconductor device includes a memory cell, a buffer circuit, a switch, first to p-th switch circuits, and first to p-th capacitors (p is an integer of 2 or more). The first to p-th switch circuits each include first to third terminals. The memory cell is electrically connected to a first electrode of the first capacitor and an input terminal of the buffer circuit through the switch. A second electrode of an i-th capacitor is electrically connected to a first terminal of an i-th switch circuit and a first electrode of an (i+1)th capacitor (i is an integer of 1 to (p?1)). A second electrode of the p-th capacitor is electrically connected to a first terminal of the p-th switch circuit. An output terminal of the buffer circuit is electrically connected to a second terminal of each of the first to p-th switch circuits. A third terminal of each of the first to p-th switch circuits is electrically connected to a wiring supplying a low-level potential.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: January 22, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Yutaka Shionoiri
  • Patent number: 10050524
    Abstract: A voltage multiplier circuit operates in response to a received clock signal to perform a voltage multiplication operation on an input voltage to generate an output voltage. The voltage multiplier circuit includes a pair of intermediate nodes that are capacitively coupled to receive, respectively, opposite phases of a clock signal. A first CMOS driver circuit is coupled to one of the intermediate nodes and has an output configured to generate one phase of a level shifted output clock signal. A second CMOS driver circuit is coupled to another one of the intermediate nodes and has an output configured to generate another phase of the level shifted output clock signal.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: August 14, 2018
    Assignee: STMicroelectronics International N.V.
    Inventor: Vikas Rana
  • Patent number: 9917146
    Abstract: An integrated capacitor includes a substrate with a first main surface area and an opposing second main surface area. A capacitor structure with a dielectric layer is integrated in the first main surface area. A compensation structure with a compensation layer is integrated in the second main surface area. The ratio between a surface enlargement of the second main surface area effected by the compensation structure corresponds to at least 30% of the surface enlargement of the first main surface area effected by the capacitor structure.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: March 13, 2018
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Anton Bauer, Tobias Erlbacher, Holger Schwarzmann
  • Patent number: 9735781
    Abstract: An application specific integrated circuit (ASIC) and a method for its design and fabrication is disclosed. In one embodiment, the camouflaged application specific integrated circuit (ASIC), comprises a plurality of interconnected functional logic cells that together perform one or more ASIC logical functions, wherein the functional logic cells comprise a camouflage cell including: a source region of a first conductivity type, a drain region of the first conductivity type, and a camouflage region of a second conductivity type disposed between the source region and the drain region. The camouflage region renders the camouflage cell always off in a first camouflage cell configuration and always on in a second camouflage cell configuration having a planar layout substantially indistinguishable from the first configuration.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: August 15, 2017
    Assignee: SYPHERMEDIA INTERNATIONAL, INC.
    Inventors: Ronald P. Cocchi, Lap Wai Chow, James P. Baukus, Bryan J. Wang
  • Patent number: 9543306
    Abstract: A sub word line driver of a semiconductor memory device including a sub word line driver is disclosed. The sub word line driver of a semiconductor memory device comprising: a semiconductor substrate including an active region extended in a first direction; a plurality of gate electrodes extended in a second direction perpendicular to the active region; first and second metal contacts formed over the active region between the gate electrodes; a plurality of metal pads coupled to the first metal contacts; and a plurality of metal signal lines coupled to the second metal contacts, extended in the second direction, and bent at specific parts adjacent to the metal pads.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: January 10, 2017
    Assignee: SK Hynix Inc.
    Inventor: Han Kyu Lee
  • Patent number: 9455151
    Abstract: An integrated capacitor includes a substrate with a first main surface area and an opposing second main surface area. A capacitor structure with a dielectric layer is integrated in the first main surface area. A compensation structure with a compensation layer is integrated in the second main surface area. The ratio between a surface enlargement of the second main surface area effected by the compensation structure corresponds to at least 30% of the surface enlargement of the first main surface area effected by the capacitor structure.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: September 27, 2016
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Anton Bauer, Tobias Erlbacher, Holger Schwarzmann
  • Patent number: 9041154
    Abstract: A semiconductor memory device includes a substrate having thereon a memory array region and a periphery circuit region. A first dielectric layer covers the memory array region and the periphery circuit region on the substrate. A second dielectric layer covers the memory array region and the periphery circuit region on the first dielectric layer. At least a capacitor structure is provided in the memory array region. The capacitor structure includes an electrode material layer embedded in the second dielectric layer. The semiconductor memory device further includes a contact structure comprising the electrode material layer.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: May 26, 2015
    Assignee: NANYA TECHNOLOGY CORP.
    Inventors: Chien-An Yu, Chih-Huang Wu
  • Patent number: 9041086
    Abstract: A method of forming a vertical field effect transistor includes etching an opening into semiconductor material. Sidewalls and radially outermost portions of the opening base are lined with masking material. A semiconductive material pillar is epitaxially grown to within the opening adjacent the masking material from the semiconductor material at the opening base. At least some of the masking material is removed from the opening. A gate dielectric is formed radially about the pillar. Conductive gate material is formed radially about the gate dielectric. An upper portion of the pillar is formed to comprise one source/drain region of the vertical transistor. Semiconductive material of the pillar received below the upper portion is formed to comprise a channel region of the vertical transistor. Semiconductor material adjacent the opening is formed to comprise another source/drain region of the vertical transistor. Other aspects and implementations are contemplated.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: May 26, 2015
    Assignee: Micron Technology, Inc.
    Inventors: Larson Lindholm, David Hwang
  • Patent number: 9029863
    Abstract: A variation in electrical characteristics, such as a negative shift of the threshold voltage or an increase in S value, of a fin-type transistor including an oxide semiconductor material is prevented. An oxide semiconductor film is sandwiched between a plurality of gate electrodes with an insulating film provided between the oxide semiconductor film and each of the gate electrodes. Specifically, a first gate insulating film is provided to cover a first gate electrode, an oxide semiconductor film is provided to be in contact with the first gate insulating film and extend beyond the first gate electrode, a second gate insulating film is provided to cover at least the oxide semiconductor film, and a second gate electrode is provided to be in contact with part of the second gate insulating film and extend beyond the first gate electrode.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: May 12, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Atsuo Isobe
  • Patent number: 9012969
    Abstract: A device isolation film has a first height in a first area and a second height higher than the first height in a second area. The first area includes a first end of a dummy memory transistor facing a memory string and a part of a device isolation film adjacent thereof. The second area includes a second end of the dummy memory transistor facing a select transistor and a part of the device isolation film adjacent thereof.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: April 21, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Takeshi Kamigaichi
  • Patent number: 8994086
    Abstract: The invention provides a semiconductor device which is non-volatile, easily manufactured, and can be additionally written. A semiconductor device of the invention includes a plurality of transistors, a conductive layer which functions as a source wiring or a drain wiring of the transistors, and a memory element which overlaps one of the plurality of transistors, and a conductive layer which functions as an antenna. The memory element includes a first conductive layer, an organic compound layer and a phase change layer, and a second conductive layer stacked in this order. The conductive layer which functions as an antenna and a conductive layer which functions as a source wiring or a drain wiring of the plurality of transistors are provided on the same layer.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: March 31, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Hiroko Abe, Yukie Nemoto, Ryoji Nomura, Mikio Yukawa
  • Patent number: 8975680
    Abstract: A highly integrated gain cell-type semiconductor memory is provided. A first insulator, a read bit line, a second insulator, a third insulator, a first semiconductor film, first conductive layers, and the like are formed. A projecting insulator is formed thereover. Then, second semiconductor films and a second gate insulating film are formed to cover the projecting insulator. After that, a conductive film is formed and subjected to anisotropic etching, so that write word lines are formed on side surfaces of the projecting insulator. A third contact plug for connection to a write bit line is formed over a top of the projecting insulator. With such a structure, the area of the memory cell can be 4 F2 at a minimum.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: March 10, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Yasuhiko Takemura
  • Patent number: 8970039
    Abstract: A semiconductor device includes a plurality of electrode structures perpendicularly extending on a substrate, and at least one support unit extending between the plurality of electrode structures. The support unit includes at least one support layer including a noncrystalline metal oxide contacting a part of the plurality of electrode structures. Related devices and fabrication methods are also discussed.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: March 3, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Bong-jin Kuh, Sang-ryol Yang, Soon-wook Jung, Young-sub You, Byung-hong Chung, Han-mei Choi, Jong-sung Lim
  • Patent number: 8969935
    Abstract: Disclosed herein is a device that includes a semiconductor substrate having a first area, a plurality of cell transistors arranged on the first area of the semiconductor substrate, and a plurality of cell capacitors each coupled to an associated one of the cell transistors, the cell capacitors being provided so as to overlap with one another on the first area.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: March 3, 2015
    Assignee: PS4 Luxco S.A.R.L.
    Inventor: Hiroyuki Uchiyama
  • 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: 8952435
    Abstract: A method for forming a memory cell transistor is disclosed which includes providing a substrate, forming a trench structure in the substrate, depositing a conductive substance on the surface of the substrate to form a conductive member inside the trench structure, forming one or more dielectric layers on the surface of the substrate, forming one or more first conductive layers on top of the dielectric layers, and etching the first conductive layers and the dielectric layers to form a hole structure extending through the first conductive and the dielectric layers, reaching to the substrate surface. The formed memory cell transistor thus comprises a hole structure which is formed from the surface of the top first conductive layer, extending downwards through the first conductive layers and the dielectric layers, and reaching the substrate surface. One or more second conductive layers may be formed on top of the first conductive layers, with the second conductive layer material filling the hole structure.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: February 10, 2015
    Assignee: Hermes Microvision, Inc.
    Inventor: Hong Xiao
  • Patent number: 8946855
    Abstract: A semiconductor device and a method for manufacturing the same are disclosed. The semiconductor device includes adjacent storage node contact plugs having different heights, and lower-electrode bowing profiles having different heights, such that a spatial margin between the lower electrodes is assured and a bridge fail is prevented, resulting in improved device operation characteristics. The semiconductor device includes a first storage node contact plug and a second storage node contact plug formed over a semiconductor substrate, wherein the second storage node contact plug is arranged at a height different from that of the first storage node contact plug, and a lower electrode formed over the first storage node contact plug and the second storage node contact plug.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: February 3, 2015
    Assignee: Hynix Semiconductor Inc.
    Inventor: Sang Ho Sohn
  • Patent number: 8947932
    Abstract: Provided is a one-transistor (1T) floating-body DRAM cell device including a substrate; a gate stack which is formed on the substrate; a control electrode which is disposed on the substrate and of which some or entire portion is surrounded by the gate stack; a semiconductor layer which is formed on the gate stack; a source and a drain which are formed in the surface of the semiconductor layer and of which lower surfaces are not in contact with the gate stack; a gate insulating layer which is formed on the semiconductor layer; and a gate electrode which is formed on the gate insulating layer, wherein the remaining portion of the semiconductor layer excluding the source and the drain is configured as a floating body. The miniaturization characteristic and performance of a MOS-based DRAM cell device can be improved, and a memory capacity can be increased.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: February 3, 2015
    Assignee: SNU R&DB Foundation
    Inventor: Jong-Ho Lee
  • Patent number: 8946019
    Abstract: In a semiconductor device, capacitors may be formed so as to be in direct contact with a transistor by using a shared transistor region, such as a drain region or a source region of closely spaced transistors, as one capacitor electrode, while the other capacitor electrode is provided in the form of a buried electrode in the dielectric material of the contact level. To this end, dielectric material may be deposited so as to reliably form a void, wherein, at any appropriate manufacturing stage, a capacitor dielectric material may be provided so as to separate the capacitor electrodes.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: February 3, 2015
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Dmytro Chumakov, Tino Hertzsch
  • Patent number: 8937344
    Abstract: The semiconductor device includes a semiconductor substrate having a cell region and a peripheral circuit region defined therein, semiconductor memory elements formed over the semiconductor substrate in the cell region, an interlayer insulating layer formed over the semiconductor substrate in the peripheral circuit region, first conductive layers substantially vertically passing through the interlayer insulating layer, and arranged in a matrix, and second conductive layers coupling the first conductive layers in rows or columns, each pair of the second conductive layers and the first conductive layers coupled to the each pair of the second conductive layers, respectively, forming electrodes of a capacitor.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: January 20, 2015
    Assignee: SK Hynix Inc.
    Inventors: Jung Ryul Ahn, Jum Soo Kim
  • Patent number: 8937345
    Abstract: An integrated circuit includes an active transistor laterally adjacent to a trench capacitor formed in a semiconductor substrate, the active transistor comprising a source junction and a drain junction, wherein a barrier layer is disposed along a periphery of the trench capacitor for isolating the trench capacitor; a passive transistor laterally spaced from the active transistor, wherein at least a portion of the trench capacitor is interposed between the active and passive transistors; an interlevel dielectric disposed upon the active and passive transistors; and a first conductive contact extending through the interlevel dielectric to the drain junction of the active transistor and the at least a portion of the trench capacitor between the active and passive transistors, wherein the first conductive contact electrically connects the trench capacitor to the drain junction of the active transistor.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: January 20, 2015
    Assignee: International Business Machines Corporation
    Inventors: John E. Barth, Jr., Kangguo Cheng, Michael Sperling, Geng Wang
  • Patent number: 8928062
    Abstract: A nonvolatile semiconductor memory device includes a plurality of nonvolatile memory cells formed on a semiconductor substrate, each memory cell including source and drain regions separately formed on a surface portion of the substrate, buried insulating films formed in portions of the substrate that lie under the source and drain regions and each having a dielectric constant smaller than that of the substrate, a tunnel insulating film formed on a channel region formed between the source and drain regions, a charge storage layer formed of a dielectric body on the tunnel insulating film, a block insulating film formed on the charge storage layer, and a control gate electrode formed on the block insulating film.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: January 6, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Naoki Yasuda
  • Patent number: 8921171
    Abstract: A method for forming a gate structure, comprising: providing a substrate, where the substrate includes a nMOSFET area and a pMOSFET area, each of the nMOSFET area and the pMOSFET area has a gate trench, and each of the gate trenches is provided at a bottom portion with a gate dielectric layer; forming a gate dielectric capping layer on the substrate; forming an etching stop layer on the gate dielectric capping layer; forming an oxygen scavenging element layer on the etching stop layer; forming a first work function adjustment layer on the oxygen scavenging element layer; etching the first work function adjustment layer above the nMOSFET area; forming a second work function adjustment layer on the surface of the substrate; metal layer depositing and annealing to fill the gate trenches with a metal layer; and removing the metal layer outside the gate trenches.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: December 30, 2014
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Hong Yang, Xueli Ma, Wenwu Wang, Kai Han, Xiaolei Wang, Huaxiang Yin, Jiang Yan
  • Patent number: 8921906
    Abstract: Sacrificial plugs for forming contacts in integrated circuits, as well as methods of forming connections in integrated circuit arrays are disclosed. Various pattern transfer and etching steps can be used to create densely-packed features and the connections between features. A sacrificial material can be patterned in a continuous zig-zag line pattern that crosses word lines. Planarization can create parallelogram-shaped blocks of material that can overlie active areas to form sacrificial plugs, which can be replaced with conductive material to form contacts.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: December 30, 2014
    Assignee: Micron Technology, Inc.
    Inventors: Byron Neville Burgess, John K. Zahurak