Patents Examined by Tong-Ho Kim
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Patent number: 11935922Abstract: A semiconductor device include: a substrate; a 1st transistor formed above the substrate, the 1st transistor including a 1st channel set of a plurality of 1st nanosheet layers, a 1st gate structure surrounding the 1st nanosheet layers, and 1st and 2nd source/drain regions at both ends of the 1st channel set; and a 2nd transistor formed above the 1st transistor in a vertical direction, the 2nd transistor including a 2nd channel set of a plurality of 2nd nanosheet layers, a 2nd gate structure surrounding the 2nd nanosheet layers, and 3rd and 4th source/drain regions at both ends of the 2nd channel set, wherein the 1st channel set has a greater width than the 2nd channel set, wherein a number of the 1st nanosheet layers is smaller than a number of the 2nd nanosheet layers, and wherein a sum of effective channel widths of the 1st nanosheet layers is substantially equal to a sum of effective channel width of the 2nd nanosheet layers.Type: GrantFiled: October 21, 2022Date of Patent: March 19, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byounghak Hong, Seunghyun Song, Kang Ill Seo, Hwichan Jun, Inchan Hwang
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Patent number: 11937416Abstract: A substrate includes a first doped region having a first type dopant, and a second doped region having a second type dopant and adjacent to the first doped region. A stack is formed that includes first layers and second layers alternating with each other. The first and second layers each have a first and second semiconductor material, respectively. The second semiconductor material is different than the first semiconductor material. A mask element is formed that has an opening in a channel region over the second doped region. A top portion of the stack not covered by the mask element is recessed. The stack is then processed to form a first and a second transistors. The first transistor has a first number of first layers. The second transistor has a second number of first layers. The first number is greater than the second number.Type: GrantFiled: May 23, 2022Date of Patent: March 19, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTDInventors: Shih-Hao Lin, Kian-Long Lim, Chih-Chuan Yang, Chia-Hao Pao, Jing-Yi Lin
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Patent number: 11935891Abstract: Multiple non-silicon semiconductor material layers may be stacked within a fin structure. The multiple non-silicon semiconductor material layers may include one or more layers that are suitable for P-type transistors. The multiple non-silicon semiconductor material layers may further include one or more one or more layers that are suited for N-type transistors. The multiple non-silicon semiconductor material layers may further include one or more intervening layers separating the N-type from the P-type layers. The intervening layers may be at least partially sacrificial, for example to allow one or more of a gate, source, or drain to wrap completely around a channel region of one or more of the N-type and P-type transistors.Type: GrantFiled: June 13, 2022Date of Patent: March 19, 2024Assignee: Intel CorporationInventors: Gilbert Dewey, Patrick Morrow, Ravi Pillarisetty, Rishabh Mehandru, Cheng-ying Huang, Willy Rachmady, Aaron Lilak
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Patent number: 11935754Abstract: A device includes a first nanostructure; a second nanostructure over the first nanostructure; a high-k gate dielectric around the first nanostructure and the second nanostructure, the high-k gate dielectric having a first portion on a top surface of the first nano structure and a second portion on a bottom surface of the second nanostructure; and a gate electrode over the high-k gate dielectric. The gate electrode comprises: a first work function metal around the first nanostructure and the second nanostructure, the first work function metal filling a region between the first portion of the high-k gate dielectric and the second portion of the high-k gate dielectric; and a tungsten layer over the first work function metal, the tungsten layer being free of fluorine.Type: GrantFiled: June 30, 2022Date of Patent: March 19, 2024Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Hsin-Yi Lee, Cheng-Lung Hung, Chi On Chui
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Patent number: 11923364Abstract: A semiconductor device includes a cell array having tracks and rows formed on a substrate. The tracks extend perpendicularly to the rows. A logic cell is formed across two adjacent rows within the cell array. The logic cell includes a cross-couple (XC) in each row and a plurality of poly tracks across the two adjacent rows. Each XC includes two cross-coupled complementary field-effect-transistors. Each poly track is configured to function as an inter-row gate for the XCs. A pair of signal tracks is positioned on opposing boundaries of the logic cell and electrically coupled to the plurality of poly tracks.Type: GrantFiled: May 24, 2021Date of Patent: March 5, 2024Assignee: Tokyo Electron LimitedInventors: Lars Liebmann, Jeffrey Smith, Daniel Chanemougame, Paul Gutwin
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Patent number: 11925036Abstract: An example three-dimensional (3-D) memory array includes a substrate material including a plurality of conductive contacts arranged in a staggered pattern and a plurality of planes of a conductive material separated from one another by a first insulation material formed on the substrate material. Each of the plurality of planes of the conductive material includes a plurality of recesses formed therein. A second insulation material is formed in a serpentine shape through the insulation material and the conductive material. A plurality of conductive pillars are arranged to extend substantially perpendicular to the plurality of planes of the conductive material and the substrate and each respective conductive pillar is coupled to a different respective one of the conductive contacts. A chalcogenide material is formed in the plurality of recesses such that the chalcogenide material in each respective recess is formed partially around one of the plurality of conductive pillars.Type: GrantFiled: September 13, 2021Date of Patent: March 5, 2024Assignee: Micron Technology, Inc.Inventors: Paolo Fantini, Lorenzo Fratin
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Patent number: 11923460Abstract: A semiconductor structure includes several semiconductor stacks over a substrate, and each of the semiconductor stacks extends in a first direction, wherein adjacent semiconductor stacks are spaced apart from each other in a second direction, which is different from the first direction. Each of the semiconductor stacks includes channel layers above the substrate and a gate structure across the channel layers. The channel layers are spaced apart from each other in the third direction. The gate structure includes gate dielectric layers around the respective channel layers, and a gate electrode along sidewalls of the gate dielectric layers and a top surface of the uppermost gate dielectric layer. The space in the third direction between the two lowermost channel layers is greater than the space in the third direction between the two uppermost channel layers in the same semiconductor stack.Type: GrantFiled: June 28, 2022Date of Patent: March 5, 2024Assignee: MediaTek Inc.Inventors: Cheng-Tien Wan, Ming-Cheng Lee
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Patent number: 11923354Abstract: A semiconductor device includes standard cells in a first direction parallel to an upper surface of a substrate and a second direction intersecting the first direction, and filler cells between ones of the standard cells. Each of the standard cells includes an active region, a gate structure that intersects the active region, source/drain regions on the active region on both sides of the gate structure, and interconnection lines. Each of the filler cells includes a filler active region and a filler gate structure that intersects the filler active region. The standard cells include first to third standard cells in first to third rows sequentially in the second direction, respectively. First interconnection lines are arranged with a first pitch, second interconnection lines are arranged with a second pitch, and third interconnection lines are arranged with a third pitch different from the first and second pitches.Type: GrantFiled: June 3, 2021Date of Patent: March 5, 2024Assignee: Samsung Electronics Co., Ltd.Inventors: Dayeon Cho, Hyungock Kim, Sangdo Park
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Patent number: 11923423Abstract: A novel metal oxide is provided. One embodiment of the present invention is a crystalline metal oxide. The metal oxide includes a first layer and a second layer; the first layer has a wider bandgap than the second layer; the first layer and the second layer form a crystal lattice; and in the case where a carrier is excited in the metal oxide, the carrier is transferred through the second layer. Furthermore, the first layer contains an element M (M is one or more selected from Al, Ga, Y, and Sn) and Zn, and the second layer contains In.Type: GrantFiled: May 26, 2022Date of Patent: March 5, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Shunpei Yamazaki
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Patent number: 11915937Abstract: A method includes forming a plurality of nanostructures over a substrate; etching the plurality of nanostructures to form recesses; forming source/drain regions in the recesses; removing first nanostructures of the plurality of nanostructures leaving second nanostructures of the plurality of nanostructures; depositing a gate dielectric over and around the second nanostructures; depositing a protective material over the gate dielectric; performing a fluorine treatment on the protective material; removing the protective material; depositing a first conductive material over the gate dielectric; and depositing a second conductive material over the first conductive material.Type: GrantFiled: July 16, 2021Date of Patent: February 27, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Hsin-Yi Lee, Mao-Lin Huang, Lung-Kun Chu, Huang-Lin Chao, Chi On Chui
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Patent number: 11916081Abstract: The present invention provides a display panel, including a substrate, a dielectric layer, and a sensing electrode layer. Touch control traces are disposed in the dielectric layer. In the present invention, protrusions are disposed on left and right sides of a first linear part of the touch control traces. When the touch control traces are subjected to shear stress, diagonal directions of the protrusions on the left and right sides compensate for a deformation of the panel and buffer the stress on the touch control traces, reducing the stress on the touch control traces and preventing trace breakage.Type: GrantFiled: June 18, 2020Date of Patent: February 27, 2024Inventor: Xiaohui Nie
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Patent number: 11916122Abstract: A method for forming a gate all around transistor includes forming a plurality of semiconductor nanosheets. The method includes forming a cladding inner spacer between a source region of the transistor and a gate region of the transistor. The method includes forming sheet inner spacers between the semiconductor nanosheets in a separate deposition process from the cladding inner spacer.Type: GrantFiled: July 8, 2021Date of Patent: February 27, 2024Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Zhi-Chang Lin, Kuan-Ting Pan, Shih-Cheng Chen, Jung-Hung Chang, Lo-Heng Chang, Chien-Ning Yao, Kuo-Cheng Chiang
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Patent number: 11915972Abstract: Semiconductor devices including air spacers formed in a backside interconnect structure and methods of forming the same are disclosed. In an embodiment, a device includes a first transistor structure; a front-side interconnect structure on a front-side of the first transistor structure; and a backside interconnect structure on a backside of the first transistor structure, the backside interconnect structure including a first dielectric layer on the backside of the first transistor structure; a first via extending through the first dielectric layer, the first via being electrically coupled to a first source/drain region of the first transistor structure; a first conductive line electrically coupled to the first via; and an air spacer adjacent the first conductive line, the first conductive line defining a first side boundary of the air spacer.Type: GrantFiled: July 15, 2022Date of Patent: February 27, 2024Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Li-Zhen Yu, Huan-Chieh Su, Lin-Yu Huang, Cheng-Chi Chuang, Chih-Hao Wang
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Patent number: 11916132Abstract: Semiconductor devices and methods of manufacturing are presented in which inner spacers for nanostructures are manufactured. In embodiments a dielectric material is deposited for the inner spacer and then treated. The treatment may add material and cause an expansion in volume in order to close any seams that can interfere with subsequent processes.Type: GrantFiled: June 30, 2022Date of Patent: February 27, 2024Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Wan-Yi Kao, Hung Cheng Lin, Che-Hao Chang, Yung-Cheng Lu, Chi On Chui
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Patent number: 11916114Abstract: A device includes a first nanostructure; a second nanostructure over the first nanostructure; a first high-k gate dielectric around the first nanostructure; a second high-k gate dielectric around the second nanostructure; and a gate electrode over the first and second high-k gate dielectrics. The gate electrode includes a first work function metal; a second work function metal over the first work function metal; and a first metal residue at an interface between the first work function metal and the second work function metal, wherein the first metal residue has a metal element that is different than a metal element of the first work function metal.Type: GrantFiled: June 30, 2022Date of Patent: February 27, 2024Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Hsin-Yi Lee, Cheng-Lung Hung, Chi On Chui
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Patent number: 11908903Abstract: A method of fabricating a semiconductor structure includes selective use of a cladding layer during the fabrication process to provide critical dimension uniformity. The cladding layer can be formed before forming a recess in an active channel structure or can be formed after filling a recess in an active channel structure with dielectric material. These techniques can be used in semiconductor structures such as gate-all-around (GAA) transistor structures implemented in an integrated circuit.Type: GrantFiled: July 8, 2021Date of Patent: February 20, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LIMITEDInventors: Kuei-Yu Kao, Shih-Yao Lin, Chen-Ping Chen, Chih-Han Lin, Ming-Ching Chang, Chao-Cheng Chen
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Patent number: 11908950Abstract: Embodiments include two-dimensional (2D) semiconductor sheet transistors and methods of forming such devices. In an embodiment, a semiconductor device comprises a stack of 2D semiconductor sheets, where individual ones of the 2D semiconductor sheets have a first end and a second end opposite from the first end. In an embodiment, a first spacer is over the first end of the 2D semiconductor sheets, and a second spacer is over the second end of the 2D semiconductor sheets. Embodiments further comprise a gate electrode between the first spacer and the second spacer, a source contact adjacent to the first end of the 2D semiconductor sheets, and a drain contact adjacent to the second end of the 2D semiconductor sheets.Type: GrantFiled: June 15, 2020Date of Patent: February 20, 2024Assignee: Intel CorporationInventors: Kirby Maxey, Chelsey Dorow, Kevin P. O'Brien, Carl Naylor, Ashish Verma Penumatcha, Tanay Gosavi, Uygar E. Avci, Shriram Shivaraman
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Patent number: 11910590Abstract: The present invention provides a highly integrated memory cell and a semiconductor memory device including the same. According to the present invention, a semiconductor memory device comprises: a substrate; an active layer spaced apart from the substrate, extending in a direction parallel to the substrate, and including a thin-body channel; a bit line extending in a direction vertical to the substrate and connected to one side of the active layer; a capacitor connected to another side of the active layer; and a first word line and a second word line extending in a direction crossing the thin-body channel with the thin-body channel interposed therebetween, wherein a thickness of the thin-body channel is smaller than thicknesses of the first word line and the second word line.Type: GrantFiled: July 6, 2021Date of Patent: February 20, 2024Assignee: SK hynix Inc.Inventor: Seung Hwan Kim
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Patent number: 11901461Abstract: Disclosed are a thin film transistor, a display apparatus comprising the thin film transistor, and a method for manufacturing the thin film transistor. The thin film transistor comprises an active layer, and a gate electrode spaced apart from the active layer and configured to have at least a portion overlapped with the active layer, wherein the active layer includes a silicon semiconductor layer, and an oxide semiconductor layer which contacts the silicon semiconductor layer, wherein at least a portion of the silicon semiconductor layer and at least a portion of the oxide semiconductor layer are overlapped with the gate electrode.Type: GrantFiled: September 30, 2022Date of Patent: February 13, 2024Assignee: LG Display Co., Ltd.Inventors: Jaeman Jang, PilSang Yun, Jiyong Noh, InTak Cho
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Patent number: 11901242Abstract: The structure of a semiconductor device with different gate structures configured to provide ultra-low threshold voltages and a method of fabricating the semiconductor device are disclosed. The semiconductor device includes first and second nanostructured channel regions in first and second nanostructured layers, respectively, and first and second gate-all-around (GAA) structures surrounding the first and second nanostructured channel regions, respectively. The first GAA structure includes an Al-based gate stack with a first gate dielectric layer, an Al-based n-type work function metal layer, a first metal capping layer, and a first gate metal fill layer. The second GAA structure includes an Al-free gate stack with a second gate dielectric layer, an Al-free p-type work function metal layer, a metal growth inhibition layer, a second metal capping layer, and a second gate metal fill layer.Type: GrantFiled: August 9, 2021Date of Patent: February 13, 2024Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Chung-Liang Cheng, Ziwei Fang