Including Dielectric Isolation Means Patents (Class 257/506)
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Patent number: 11631735Abstract: The present application discloses a semiconductor device with the flowable layer. The semiconductor device includes a substrate, a first isolation layer positioned in the substrate, a first treated flowable layer positioned between the first isolation layer and the substrate, a second isolation layer positioned in the substrate, and a second treated flowable layer positioned between the second isolation layer and the substrate. A width of the first isolation layer is greater than a width of the second isolation layer, and a depth of the first isolation layer is less than a depth of the second isolation layer.Type: GrantFiled: February 24, 2022Date of Patent: April 18, 2023Assignee: NANYA TECHNOLOGY CORPORATIONInventor: Liang-Pin Chou
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Patent number: 11615980Abstract: There is provided a method of filling one or more recesses by providing the substrate in a reaction chamber and introducing a first reactant to the substrate with a first dose, introducing a second reactant to the substrate with a second dose, wherein the first and the second doses overlap in an overlap area where the first and second reactants react and leave an initially substantially unreacted area where the first and the second areas do not overlap; introducing a third reactant to the substrate with a third dose, the third reactant reacting with the first or second reactant to form deposited material; and etching the deposited material. An apparatus for filling a recess is also disclosed.Type: GrantFiled: December 8, 2021Date of Patent: March 28, 2023Assignee: ASM IP Holding B.V.Inventors: Viljami Pore, Zecheng Liu
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Patent number: 11615952Abstract: A method for forming a foreign oxide or foreign nitride layer (6) on a substrate (1) of a semiconductor comprises providing a semiconductor substrate (1) having an oxidized or nitridized surface layer (3), supplying a foreign element (5) on the oxidized or nitridized surface layer; and keeping the oxidized or nitridized surface layer (3) at an elevated temperature so as to oxidize or nitridize at least partially the foreign element by the oxygen or nitrogen, respectively, initially present in the oxidized or nitridized surface layer (3).Type: GrantFiled: February 17, 2016Date of Patent: March 28, 2023Assignee: TURUN YLIOPISTOInventors: Mikhail Kuzmin, Pekka Laukkanen, Yasir Muhammad, Marjukka Tuominen, Johnny Dahl, Veikko Tuominen, Jaakko Makela, Marko Punkkinen, Kalevi Kokko
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Patent number: 11605648Abstract: Provided are a semiconductor structure and a manufacturing method thereof. The semiconductor structure includes a carrier substrate, a trap-rich layer, a dielectric layer, an interconnect structure, a device structure layer and a circuit structure. The trap-rich layer is disposed on the carrier substrate. The dielectric layer is disposed on the trap-rich layer. The interconnect structure is disposed on the dielectric layer. The device structure layer is disposed on the interconnect structure and electrically connected to the interconnect structure. The circuit structure is disposed on the device structure layer and electrically connected to the device structure layer.Type: GrantFiled: July 22, 2021Date of Patent: March 14, 2023Assignee: UNITED MICROELECTRONICS CORP.Inventors: Sheng Zhang, Chunyuan Qi, Xingxing Chen, Chien-Kee Pang
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Patent number: 11600695Abstract: A method includes providing a structure having two fins extending from a substrate and an isolation structure adjacent to lower portions of the fins; forming a cladding layer over the isolation structure and over top and sidewalls of the fins; recessing the isolation structure using the cladding layer as an etch mask to expose the substrate; after the recessing of the isolation structure, depositing a seal layer over the substrate, the isolation structure, and the cladding layer; forming a sacrificial plug over the seal layer and between the two fins; and depositing a dielectric top cover over the sacrificial plug and laterally between the two fins.Type: GrantFiled: December 10, 2020Date of Patent: March 7, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Ko-Cheng Liu, Ming-Shuan Li, Ming-Lung Cheng, Chang-Miao Liu
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Patent number: 11594594Abstract: A method for fabricating a semiconductor device includes forming an upper structure in which a bottom electrode, a dielectric layer, a top electrode and a plasma protection layer are sequentially stacked on a lower structure, exposing the upper structure to a plasma treatment, and exposing the plasma-treated upper structure and the lower structure to a hydrogen passivation process.Type: GrantFiled: April 4, 2022Date of Patent: February 28, 2023Assignee: SK hynix Inc.Inventor: Seung-Muk Kim
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Patent number: 11594447Abstract: A semiconductor device structure includes a silicon-on-insulator (SOI) region. The SOI region includes a semiconductor substrate, a buried oxide layer disposed over the semiconductor substrate, and a silicon layer disposed over the buried oxide layer. The semiconductor device structure also includes a first shallow trench isolation (STI) structure penetrating through the silicon layer and the buried oxide layer and extending into the semiconductor substrate. The first STI structure includes a first liner contacting the semiconductor substrate and the silicon layer, a second liner covering the first liner and contacting the buried oxide layer, and a third liner covering the second liner. The first liner, the second liner and the third liner are made of different materials. The first STI structure also includes a first trench filling layer disposed over the third liner and separated from the second liner by the third liner.Type: GrantFiled: April 30, 2021Date of Patent: February 28, 2023Assignee: NANYA TECHNOLOGY CORPORATIONInventor: Chia-Hsiang Hsu
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Patent number: 11587941Abstract: A method of manufacturing a semiconductor device includes forming a stacked structure including trenches having different depths, forming an insulating layer on the stacked structure to fill the trenches, and forming a plurality of protrusions located corresponding to locations of the trenches by patterning the insulating layer. The method also includes forming insulating patterns filling the trenches, respectively, by planarizing the patterned insulating layer including the plurality of protrusions.Type: GrantFiled: April 16, 2020Date of Patent: February 21, 2023Assignee: SK hynix Inc.Inventors: Byung Woo Kang, Sae Jun Kwon, Hwal Pyo Kim, Jin Taek Park, Yang Seok Lim, Young Ock Hong
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Patent number: 11557518Abstract: A method includes patterning a trench and depositing a first insulating material along sidewalls and a bottom surface of the trench using a conformal deposition process. Depositing the first insulating material includes forming a first seam between a first portion of the first insulating material on a first sidewall of the trench and a second portion of the first insulating material on a second sidewall of the trench. The method further includes etching the first insulating material below a top of the trench and depositing a second insulating material over the first insulating material and in the trench using a conformal deposition process. Depositing the second insulating material comprises forming a second seam between a first portion of the second insulating material on the first sidewall of the trench and a second portion of the second insulating material on a second sidewall of the trench.Type: GrantFiled: March 10, 2021Date of Patent: January 17, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Sung-En Lin, Chi On Chui, Fang-Yi Liao, Chunyao Wang, Yung-Cheng Lu
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Patent number: 11532523Abstract: A method includes patterning a trench and depositing a first insulating material along sidewalls and a bottom surface of the trench using a conformal deposition process. Depositing the first insulating material includes forming a first seam between a first portion of the first insulating material on a first sidewall of the trench and a second portion of the first insulating material on a second sidewall of the trench. The method further includes etching the first insulating material below a top of the trench and depositing a second insulating material over the first insulating material and in the trench using a conformal deposition process. Depositing the second insulating material comprises forming a second seam between a first portion of the second insulating material on the first sidewall of the trench and a second portion of the second insulating material on a second sidewall of the trench.Type: GrantFiled: March 10, 2021Date of Patent: December 20, 2022Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Sung-En Lin, Chi On Chui, Fang-Yi Liao, Chunyao Wang, Yung-Cheng Lu
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Patent number: 11502087Abstract: A semiconductor structure and a method of fabricating the same are disclosed. The semiconductor device comprises: a first active region over a substrate; and a first bit line structure intercepting the first active region at a level that is lower than a top-most surface thereof, the first bit line structure including a barrier liner having a U-profile in a width direction thereof in electrical contact with the first active region.Type: GrantFiled: January 21, 2020Date of Patent: November 15, 2022Assignee: XIA TAI XIN SEMICONDUCTOR (QING DAO) LTD.Inventor: Il-Goo Kim
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Patent number: 11495660Abstract: The present disclosure relates to semiconductor structures and, more particularly, to co-integrated high voltage and medium voltage devices with defect prevention structures and methods of manufacture. The structure includes: a semiconductor on insulator (SOI) region and a bulk region integrated in a single substrate; at least one active device in the bulk region; at least one active device in the SOI region; and a defect prevention structure bordering the SOI region.Type: GrantFiled: November 6, 2020Date of Patent: November 8, 2022Assignee: GLOBALFOUNDRIES DRESDEN MODULE ONE LIMITED LIABILITY COMPANY & CO. KGInventor: Nan Wu
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Patent number: 11482424Abstract: The invention discloses an active region structure and a manufacturing method thereof, which also comprises a edge portion around the active region, so that the stress generated by the shallow trench insulation layer in the peripheral area on the active region can be blocked, and the component unit in the peripheral edge area of the active region can be prevented from being damaged due to stress. In addition, the edge portion includes branches extending into the active region, and the branches extend in at least two different directions, which can compensate the uneven stress at the end between the active lines and avoid the damage of the component unit.Type: GrantFiled: October 13, 2020Date of Patent: October 25, 2022Assignee: Fujian Jinhua Integrated Circuit Co., Ltd.Inventor: Gang-Yi Lin
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Patent number: 11462550Abstract: An SRAM structure includes first and second gate strips extending along a first direction. A first active region extends across the first gate strip from a top view, and forms a first pull-up transistor with the first gate strip. A second active region extends across the second gate strip from the top view, and forms a second pull-up transistor with the second gate strip. From the top view the first active region has a first stepped sidewall facing away from the second active region. The first stepped sidewall has a first side surface farthest from the second active region, a second side surface set back from the first side surface along the first direction, and a third side surface set back from the second side surface along the first direction.Type: GrantFiled: August 17, 2020Date of Patent: October 4, 2022Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Gulbagh Singh, Shun-Chi Tsai, Chih-Ming Lee, Chi-Yen Lin, Kuo-Hung Lo
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Patent number: 11459655Abstract: A plasma processing method executed by a plasma processing apparatus in the present disclosure includes a first step and a second step. In the first step, the plasma processing apparatus forms a first film on the side walls of an opening in the processing target, the first film having different thicknesses along a spacing between pairs of side walls facing each other. In the second step, the plasma processing apparatus forms a second film by performing a film forming cycle once or more times after the first step, the second film having different thicknesses along the spacing between the pairs of side walls facing each other.Type: GrantFiled: July 26, 2019Date of Patent: October 4, 2022Assignee: TOKYO ELECTRON LIMITEDInventors: Michiko Nakaya, Toru Hisamatsu, Shinya Ishikawa, Sho Kumakura, Masanobu Honda, Yoshihide Kihara
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Patent number: 11462544Abstract: An array of recessed access gate lines includes active area regions having dielectric trench isolation material there-between. The trench isolation material comprises dielectric projections extending into opposing ends of individual active area regions under an elevationally outermost surface of material of the active area regions. The active area material is elevationally over the dielectric projections. Recessed access gate lines individually extend transversally across the active area regions and extend between the ends of immediately end-to-end adjacent active area regions within the dielectric trench isolation material. Other arrays are disclosed, as are methods.Type: GrantFiled: October 16, 2018Date of Patent: October 4, 2022Assignee: Micron Technology, Inc.Inventors: Sanh D. Tang, Kamal M. Karda, Wolfgang Mueller, Sourabh Dhir, Robert Kerr, Sangmin Hwang, Haitao Liu
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Patent number: 11443976Abstract: One or more semiconductor processing tools may form a deep trench within a silicon wafer. The one or more semiconductor processing tools may deposit a first insulating material within the deep trench. The one or more semiconductor processing tools may form, after forming the deep trench with the silicon wafer, a shallow trench above the deep trench. The one or more semiconductor processing tools may deposit a second insulating material within the shallow trench.Type: GrantFiled: October 20, 2020Date of Patent: September 13, 2022Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chung-Lei Chen, Cheng-Hsin Chen, Chung Chieh Ting, Che-Yi Lin, Clark Lee
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Patent number: 11424240Abstract: A semiconductor device includes an electric circuit configured to include, a transistor, a first pad coupled to a gate or a drain of the transistor, a second pad coupled to the gate or the drain of the transistor, a first wiring that extends from the gate or the drain of the transistor to the first pad, and a second wiring that diverges from the first wiring and extends to the second pad, and a redistribution layer formed over the electric circuit and configured to include a first redistribution coupled to the first pad, and a second redistribution coupled to the second pad to constitute a stub.Type: GrantFiled: October 2, 2019Date of Patent: August 23, 2022Assignee: FUJITSU LIMITEDInventors: Ikuo Soga, Yoichi Kawano
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Patent number: 11422303Abstract: The present disclosure relates to semiconductor structures and, more particularly, to a waveguide structure with attenuator and methods of manufacture. The structure includes: a waveguide structure including semiconductor material; an attenuator underneath the waveguide structure; an airgap structure vertically aligned with and underneath the waveguide structure and the attenuator; and shallow trench isolation structures on sides of the waveguide structure and merging with the airgap structure.Type: GrantFiled: December 1, 2020Date of Patent: August 23, 2022Assignee: GLOBALFOUNDRIES U.S. INC.Inventors: Mark D. Levy, Siva P. Adusumilli, Yusheng Bian
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Patent number: 11387147Abstract: A method is provided for producing a component based on a plurality of transistors on a substrate including an active area and an electrical isolation area, each transistor including a gate and spacers on either side of the gate, the electrical isolation area including at least one cavity formed as a hollow between a spacer of a first transistor of the plurality of transistors and a spacer of a second transistor of the plurality of transistors, the first and the second transistors being adjacent, the method including: forming the gates of the transistors; forming the spacers; and forming a mechanically constraining layer for the transistors; and after forming the spacers and before forming the mechanically constraining layer, forming a filling configured to at least partially fill, with a filling material, the at least one cavity within the electrical isolation area, between the spacers of the first and the second transistors.Type: GrantFiled: August 10, 2020Date of Patent: July 12, 2022Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Nicolas Posseme, Cyrille Le Royer, Fabrice Nemouchi
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Patent number: 11374087Abstract: A method for fabricating a semiconductor device includes forming an upper structure in which a bottom electrode, a dielectric layer, a top electrode and a plasma protection layer are sequentially stacked on a lower structure, exposing the upper structure to a plasma treatment, and exposing the plasma-treated upper structure and the lower structure to a hydrogen passivation process.Type: GrantFiled: August 7, 2019Date of Patent: June 28, 2022Assignee: SK hynix Inc.Inventor: Seung-Muk Kim
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Patent number: 11348917Abstract: A semiconductor device with isolation structures of different dielectric constants and a method of fabricating the same are disclosed. The semiconductor device includes fin structures with first and second fin portions disposed on first and second device areas on a substrate and first and second pair of gate structures disposed on the first and second fin portions. The second pair of gate structures is electrically isolated from the first pair of gate structures. The semiconductor device further includes a first isolation structure interposed between the first pair of gate structures and a second isolation structure interposed between the second pair of gate structures. The first isolation structure includes a first nitride liner and a first oxide fill layer. The second isolation structure includes a second nitride liner and a second oxide fill layer. The second nitride liner is thicker than the first nitride liner.Type: GrantFiled: April 30, 2020Date of Patent: May 31, 2022Inventors: Chieh-Ping Wang, Tai-Chun Huang, Yung-Cheng Lu, Ting-Gang Chen, Chi On Chui
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Patent number: 11342378Abstract: The present disclosure provides a semiconductor structure, including a magnetic tunneling junction (MTJ), a top electrode over a top surface of the MTJ, a first dielectric layer surrounding the top electrode, wherein a bottom surface of the first dielectric contacts with a top surface of the MTJ, and a second dielectric layer surrounding the first dielectric layer and the MTJ.Type: GrantFiled: April 25, 2019Date of Patent: May 24, 2022Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventor: Chern-Yow Hsu
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Patent number: 11335770Abstract: Provided is a semiconductor isolation structure including: a substrate having a first trench in a first region of the substrate and a second trench in a second region of the substrate; a filling layer is located in the first trench and the second trench; a liner layer on the sidewalls and bottom of the first trench and the second trench; a fixed negative charge layer is located between the filling layer and the liner layer in the first trench and the second trench; and a fixed positive charge layer located between the fixed negative charge layer and the liner layer in the first trench. The liner layer, the fixed positive charge layer, the fixed negative charge layer and the filling layer in the first trench form a first isolation structure. The liner layer, the fixed negative charge layer and the filling layer in the second trench form a second isolation structure.Type: GrantFiled: May 28, 2020Date of Patent: May 17, 2022Assignee: Winbond Electronics Corp.Inventors: Yoshinori Tanaka, Wei-Che Chang
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Patent number: 11335689Abstract: A DRAM device includes an isolation region defining source and drain regions in a substrate, a first bit line structure connected to the source region, a second bit line structure disposed on the isolation region, an inner spacer vertically extending on a first sidewall of the first bit line structure, an air gap is between the inner spacer and an outer spacer, a storage contact between the first and second bit line structures and connected to the drain region, a landing pad structure vertically on the storage contact, and a storage structure vertically on the landing pad structure. The sealing layer seals a top of the first air gap. The sealing layer includes a first sealing layer on a first sidewall of a pad isolation trench, and a second sealing layer on a second sidewall of the pad isolation trench and separated from the first sealing layer.Type: GrantFiled: April 1, 2020Date of Patent: May 17, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yoongoo Kang, Wonseok Yoo, Hokyun An, Kyungwook Park, Dain Lee
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Patent number: 11302781Abstract: A semiconductor device includes a semiconductor body having a first surface and a second surface opposite to the first surface. A transistor structure is formed is the semiconductor body. A trench structure extends from the first surface into the semiconductor body. An electrostatic discharge protection structure is accommodated in the trench structure. The electrostatic discharge protection structure includes a first terminal region and a second terminal region. A source contact structure at the first surface is electrically connected to source regions of the transistor structure and to the first terminal region. A gate contact structure at the first surface is electrically connected to a gate electrode of the transistor structure and to the second terminal region.Type: GrantFiled: April 12, 2018Date of Patent: April 12, 2022Assignee: Infineon Technologies AGInventors: Joachim Weyers, Stefan Gamerith, Franz Hirler, Anton Mauder
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Patent number: 11282739Abstract: Methods for removing an oxide film from a silicon-on-insulator structure are disclosed. The oxide may be stripped from a SOI structure before deposition of an epitaxial silicon thickening layer. The oxide film may be removed by dispensing an etching solution toward a center region of the SOI structure and dispensing an etching solution to an edge region of the structure.Type: GrantFiled: October 30, 2020Date of Patent: March 22, 2022Assignee: GlobalWafers Co., Ltd.Inventors: Charles R. Lottes, Shawn George Thomas, Henry Frank Erk
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Patent number: 11264382Abstract: Disclosed are a method of forming a fin-type field effect transistor (FINFET) and a FINFET structure. In the method, isolation regions are formed on opposing sides of a semiconductor fin. Each isolation region is shorter than the fin, has a lower isolation portion adjacent to a lower fin portion, and has an upper isolation portion that is narrower than the lower isolation portion and separated from a bottom section of an upper fin portion by a space. Surface oxidation of the upper fin portion thins the top section, but leaves the bottom section relatively wide. During gate formation, the gate dielectric layer fills the spaces between the bottom section of the upper fin portion and the adjacent isolation regions. Thus, the gate conductor layer is formed above any fin bulge area and degradation of gate control over the channel region due to a non-uniform fin width is minimized or avoided.Type: GrantFiled: July 30, 2020Date of Patent: March 1, 2022Assignee: GlobalFoundries U.S. Inc.Inventors: Jiehui Shu, Bharat V. Krishnan
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Patent number: 11264402Abstract: In some embodiments, the present disclosure relates to a method of forming an integrated chip. The method includes forming a plurality of memory devices within an embedded memory region of a substrate and forming a plurality of transistor devices within a logic region of the substrate. A first isolation structure is formed within a boundary region of the substrate disposed between the logic region and the embedded memory region. The first isolation structure is formed within a recess in the substrate. A logic wall is formed over the first isolation structure. The logic wall surrounds the embedded memory region and has a first height that is greater than heights of the plurality of memory devices.Type: GrantFiled: November 26, 2019Date of Patent: March 1, 2022Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Wei Cheng Wu, Chien-Hung Chang
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Patent number: 11239204Abstract: A bonded assembly includes a first die containing first bonding pads having sidewalls that are laterally bonded to sidewalls of second bonding pads of a second die.Type: GrantFiled: November 25, 2019Date of Patent: February 1, 2022Assignee: SANDISK TECHNOLOGIES LLCInventors: Chen Wu, Peter Rabkin, Yangyin Chen, Masaaki Higashitani
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Patent number: 11226696Abstract: A display device includes a display panel that includes a flat part and a protruding part adjacent to one side of the flat part, a touch panel disposed on the display panel, a touch connection circuit board disposed at one side of the touch panel and electrically connected to the touch panel, and a protective layer disposed on one surface of the touch connection circuit board and that overlaps the protruding part. The touch connection circuit board includes a base film, a first dummy pattern disposed on the base film and adjacent to one edge of the base film, a second dummy pattern disposed on the base film and adjacent to an other edge of the base film, and a line pattern section disposed between the first and second dummy patterns. The protective layer covers the line pattern section between the first and second dummy patterns.Type: GrantFiled: March 12, 2020Date of Patent: January 18, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jihoon Oh, Myoung-Ha Jeon, Youngsoo Kim
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Patent number: 11205708Abstract: Dual self-aligned gate endcap (SAGE) architectures, and methods of fabricating dual self-aligned gate endcap (SAGE) architectures, are described. In an example, an integrated circuit structure includes a first semiconductor fin having a cut along a length of the first semiconductor fin. A second semiconductor fin is parallel with the first semiconductor fin. A first gate endcap isolation structure is between the first semiconductor fin and the second semiconductor fin. A second gate endcap isolation structure is in a location of the cut along the length of the first semiconductor fin.Type: GrantFiled: April 2, 2018Date of Patent: December 21, 2021Assignee: Intel CorporationInventors: Sairam Subramanian, Walid M. Hafez, Sridhar Govindaraju, Mark Liu, Szuya S. Liao, Chia-Hong Jan, Nick Lindert, Christopher Kenyon
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Patent number: 11201053Abstract: A method for forming a silicon nitride film to cover a stepped portion formed by exposed surfaces of first and second base films in a substrate, includes: forming a nitride film or a seed layer to cover the stepped portion, wherein the nitride film is formed by supplying, to the substrate, a nitrogen-containing base-film nitriding gas for nitriding the base films, exposing the substrate to plasma and nitriding the surface of the stepped portion, and the seed layer is composed of a silicon-containing film formed by supplying a raw material gas of silicon to the substrate and is configured such that the silicon nitride film uniformly grows on the surfaces of the base films; and forming the silicon nitride film on the seed layer by supplying, to the substrate, a second raw material gas of silicon and a silicon-nitriding gas for nitriding silicon.Type: GrantFiled: June 2, 2020Date of Patent: December 14, 2021Assignee: TOKYO ELECTRON LIMITEDInventors: Noriaki Fukiage, Takayuki Karakawa, Toyohiro Kamada, Akihiro Kuribayashi, Takeshi Oyama, Jun Ogawa, Kentaro Oshimo, Shimon Otsuki, Hideomi Hane
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Patent number: 11195746Abstract: Embodiments of the present invention are directed to a semiconductor structure and a method for forming a semiconductor structure having a self-aligned dielectric pillar for reducing trench silicide-to-gate parasitic capacitance. In a non-limiting embodiment of the invention, a nanosheet stack is formed over a substrate. A dielectric pillar is positioned adjacent to the nanosheet stack and on a shallow trench isolation region of the substrate. The nanosheet stack is recessed to expose a surface of the shallow trench isolation region and a source or drain (S/D) region is formed on the exposed surface of the shallow trench isolation region. A contact trench is formed that exposes a surface of the S/D region and a surface of the dielectric pillar.Type: GrantFiled: January 13, 2020Date of Patent: December 7, 2021Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Ruilong Xie, Kangguo Cheng, Julien Frougier
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Patent number: 11183499Abstract: A dynamic random access memory (DRAM) and methods of manufacturing, writing and reading the same. The DRAM includes a substrate, a bit line, a sidewall structure and an interconnection structure. The bit line is disposed on the substrate. The sidewall structure is disposed on a sidewall of the bit line. The sidewall structure includes a first insulation layer, a second insulation layer, and a shield conductor layer. The first insulation layer is disposed on the sidewall of the bit line. The second insulation layer is disposed on the first insulation layer. The shield conductor layer is disposed between the first insulation layer and the second insulation layer. The interconnection structure is electrically connected to the shield conductor layer. The DRAM and the manufacturing, writing and reading methods thereof can effectively reduce the parasitic capacitance of the bit line.Type: GrantFiled: November 21, 2018Date of Patent: November 23, 2021Assignee: Winbond Electronics Corp.Inventors: Yoshinori Tanaka, Wei-Che Chang, Kai Jen
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Patent number: 11165220Abstract: A structure includes a semiconductor support, a semiconductor region overlying the semiconductor support, a silicon nitride layer surrounding and straining the semiconductor region, and a metal foot separating the silicon nitride layer from the semiconductor support. The semiconductor region includes germanium. The semiconductor region can be a resonator of a laser or a waveguide.Type: GrantFiled: October 19, 2017Date of Patent: November 2, 2021Assignees: STMicroelectronics (Crolles 2) SAS, Universite Paris-Saclay, Centre National de la Recherche ScientifiqueInventors: Anas Elbaz, Moustafa El Kurdi, Abdelhanin Aassime, Philippe Boucaud, Frederic Boeuf
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Patent number: 11161999Abstract: According to one embodiment, a pattern formation method is disclosed. The method includes a preparation process, a block copolymer layer formation process, and a contact process. The preparation process includes preparing a pattern formation material including a block copolymer including a first block and a second block. The first block includes a first main chain and a plurality of first side chains. At least one of the first side chains includes a plurality of carbonyl groups. The block copolymer layer formation process includes forming a block copolymer layer on a first member. The block copolymer layer includes the pattern formation material and includes a first region and a second region. The first region includes the first block. The second region includes the second block. The contact process includes causing the block copolymer layer to contact a metal compound including a metallic element.Type: GrantFiled: October 28, 2020Date of Patent: November 2, 2021Assignee: TOSHIBA MEMORY CORPORATIONInventors: Norikatsu Sasao, Koji Asakawa, Tomoaki Sawabe, Shinobu Sugimura
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Patent number: 11152388Abstract: A method used in forming a memory array comprising strings of memory cells comprises forming a stack comprising vertically-alternating first tiers and second tiers. Horizontally-elongated trenches are formed into the stack to form laterally-spaced memory-block regions. A wall is formed in individual of the trenches laterally-between immediately-laterally-adjacent of the memory-block regions. The forming of the wall comprises lining sides of the trenches with insulative material comprising at least one of an insulative nitride and elemental-form boron. A core material is formed in the trenches to span laterally-between the at least one of the insulative nitride and the elemental-form boron. Structure independent of method is disclosed.Type: GrantFiled: October 15, 2019Date of Patent: October 19, 2021Assignee: Micron Technology, Inc.Inventors: Cole Smith, Ramey M. Abdelrahaman, Silvia Borsari, Chris M. Carlson, David Daycock, Matthew J. King, Jin Lu
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Patent number: 11133270Abstract: An integrated circuit device includes a substrate, an integrated circuit region on the substrate, a seal ring disposed in a dielectric stack of the integrated circuit region and around a periphery of the integrated circuit region, a trench around the seal ring and exposing a sidewall of the dielectric stack, a moisture blocking layer continuously covering the integrated circuit region and extending to the sidewall of the dielectric stack, thereby sealing a boundary between two adjacent dielectric films in the dielectric stack; and a passivation layer over the moisture blocking layer.Type: GrantFiled: June 29, 2020Date of Patent: September 28, 2021Assignee: UNITED MICROELECTRONICS CORP.Inventors: Purakh Raj Verma, Kuo-Yuh Yang, Chia-Huei Lin, Chu-Chun Chang
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Patent number: 11114303Abstract: In a method, a semiconductor substrate is etched to form a trench, such that the trench defines a channel portion. A hard mask layer is deposited over sidewalls of the channel portion. The semiconductor substrate is anisotropically etched to deepen the trench, such that the deepened trench further defines a base portion under the channel portion and the hard mask layer. The hard mask layer is removed from the sidewalls of the channel portion. The deepened trench is filled with an isolation material. The isolation material is recessed to form an isolation structure, in which the channel portion protrudes from the isolation structure.Type: GrantFiled: March 5, 2019Date of Patent: September 7, 2021Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Kai-Tai Chang, Tung-Ying Lee
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Patent number: 11101342Abstract: A semiconductor device has a deep trench in a semiconductor substrate of the semiconductor device, with linear trench segments extending to a trench intersection. Adjacent linear trench segments are connected by connector trench segments that surround a substrate pillar in the trench intersection. Each connector trench segment has a width at least as great as widths of the linear trench segments connected by the connector trench segment. The deep trench includes a trench filler material. The deep trench may have three linear trench segments extending to the trench intersection, connected by three connector trench segments, or may have four linear trench segments extending to the trench intersection, connected by four connector trench segments.Type: GrantFiled: February 10, 2020Date of Patent: August 24, 2021Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Binghua Hu, Ye Shao, John K Arch
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Patent number: 11081556Abstract: A silicon carbide semiconductor device includes a silicon carbide substrate, a gate insulating layer provided on a surface of the silicon carbide substrate, a gate electrode provided on the gate insulating layer, a first insulting layer provided on the gate electrode, a first layer provided on the first insulating layer, a second insulating layer provided on the first insulating layer, and an interconnect layer provided on the second insulating layer. The second insulating layer includes SiN or SiON. The first layer includes one of Ti, TiN, Ta, and TaN. The interconnect layer includes Al or Cu.Type: GrantFiled: February 4, 2020Date of Patent: August 3, 2021Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventor: Hiroyuki Kamada
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Patent number: 11063022Abstract: A package includes a carrier substrate, a first die, and a second die. The first die includes a first bonding layer, a second bonding layer opposite to the first bonding layer, and an alignment mark embedded in the first bonding layer. The first bonding layer is fusion bonded to the carrier substrate. The second die includes a third bonding layer. The third bonding layer is hybrid bonded to the second bonding layer of the first die.Type: GrantFiled: September 17, 2019Date of Patent: July 13, 2021Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Ming-Fa Chen, Chao-Wen Shih, Hsien-Wei Chen, Sung-Feng Yeh, Tzuan-Horng Liu
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Patent number: 11063152Abstract: A semiconductor device including a source/drain region having a V-shaped bottom surface and extending below gate spacers adjacent a gate stack and a method of forming the same are disclosed. In an embodiment, a method includes forming a gate stack over a fin; forming a gate spacer on a sidewall of the gate stack; etching the fin with a first anisotropic etch process to form a first recess adjacent the gate spacer; etching the fin with a second etch process using etchants different from the first etch process to remove an etching residue from the first recess; etching surfaces of the first recess with a third anisotropic etch process using etchants different from the first etch process to form a second recess extending below the gate spacer and having a V-shaped bottom surface; and epitaxially forming a source/drain region in the second recess.Type: GrantFiled: August 21, 2019Date of Patent: July 13, 2021Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chien-Wei Lee, Hsueh-Chang Sung, Yen-Ru Lee, Jyun-Chih Lin, Tzu-Hsiang Hsu, Feng-Cheng Yang
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Patent number: 11056394Abstract: Fin patterning methods disclosed herein achieve advantages of fin cut first techniques and fin cut last techniques while providing different numbers of fins in different IC regions. An exemplary method implements a spacer lithography technique that forms a fin pattern that includes a first fin line and a second fin line in a substrate. The first fin line and the second fin line have a first spacing in a first region corresponding with a single-fin FinFET and a second spacing in a second region corresponding with a multi-fin FinFET. The first spacing is greater than the second spacing, relaxing process margins during a fin cut last process, which partially removes a portion of the second line in the second region to form a dummy fin tip in the second region. Spacing between the dummy fin tip and the first fin in the second region is greater than the second spacing.Type: GrantFiled: April 26, 2019Date of Patent: July 6, 2021Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventor: Jhon Jhy Liaw
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Patent number: 11056382Abstract: Structures with a cavity beneath semiconductor devices and methods associated with forming such substrates. A first semiconductor layer is formed on a first side of a first handle wafer. A device structure is formed that is arranged at least in part in the first semiconductor layer. After forming the device structure, the first handle wafer is thinned from a second side of the first handle wafer opposite to the first side of the first handle wafer in order to form a second semiconductor layer from the first handle wafer. After thinning the first handle wafer, a cavity is formed in the second semiconductor layer. The cavity is arranged in the second semiconductor layer beneath the device structure. A second handle wafer is attached to the second semiconductor layer to close the cavity.Type: GrantFiled: March 19, 2018Date of Patent: July 6, 2021Assignee: GLOBALFOUNDRIES U.S. INC.Inventors: Siva P. Adusumilli, Steven M. Shank
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Patent number: 11043492Abstract: Self-aligned gate edge trigate and finFET devices and methods of fabricating self-aligned gate edge trigate and finFET devices are described. In an example, a semiconductor structure includes a plurality of semiconductor fins disposed above a substrate and protruding through an uppermost surface of a trench isolation region. A gate structure is disposed over the plurality of semiconductor fins. The gate structure defines a channel region in each of the plurality of semiconductor fins. Source and drain regions are on opposing ends of the channel regions of each of the plurality of semiconductor fins, at opposing sides of the gate structure. The semiconductor structure also includes a plurality of gate edge isolation structures. Individual ones of the plurality of gate edge isolation structures alternate with individual ones of the plurality of semiconductor fins.Type: GrantFiled: July 1, 2016Date of Patent: June 22, 2021Assignee: Intel CorporationInventors: Szuya S. Liao, Biswajeet Guha, Tahir Ghani, Christopher N. Kenyon, Leonard P. Guler
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Patent number: 11024716Abstract: A semiconductor structure and a method for forming the same are provided. The semiconductor structure includes: a substrate; a fin structure, disposed over the substrate; a gate structure, disposed over the substrate and covering a portion of the fin structure; a first sidewall, disposed over the substrate and surrounding a lower portion of the gate structure; and a second sidewall, disposed over the first sidewall and directly surrounding an upper portion of the gate structure, wherein the first sidewall is orthogonal to the second sidewall.Type: GrantFiled: December 10, 2019Date of Patent: June 1, 2021Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Cheng-Ta Wu, Yi-Hsien Lee, Wei-Ming You, Ting-Chun Wang
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Patent number: 11018258Abstract: A device includes a semiconductor fin and a shallow trench isolation (STI) structure. The semiconductor fin extends from a semiconductor substrate. The STI structure is around a lower portion of the semiconductor fin, and the STI structure includes a liner layer and an isolation material. The liner layer includes a metal-contained ternary dielectric material. The isolation material is over the liner layer.Type: GrantFiled: December 16, 2019Date of Patent: May 25, 2021Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Yu-Yun Peng, Keng-Chu Lin
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Patent number: 11018138Abstract: Disclosed are DRAM devices and methods of forming DRAM devices. One method may include forming a plurality of trenches and angled structures, each angled structure including a first sidewall opposite a second sidewall, wherein the second sidewall extends over an adjacent trench. The method may include forming a spacer along a bottom surface of the trench, along the second sidewall, and along the first sidewall, wherein the spacer has an opening at a bottom portion of the first sidewall. The method may include forming a drain in each of the angled structures by performing an ion implant, which impacts the first sidewall through the opening at the bottom portion of the first sidewall. The method may include removing the spacer from the first sidewall, forming a bitline over the spacer along the bottom surface of each of the trenches, and forming a series of wordlines along the angled structures.Type: GrantFiled: October 25, 2019Date of Patent: May 25, 2021Assignee: APPLIED Materials, Inc.Inventors: Sony Varghese, Min Gyu Sung