Patents Assigned to Taiwan Semiconductor Manufacturing Co.
  • Patent number: 11955421
    Abstract: An integrated circuit includes a plurality of transistors and an interlevel dielectric layer formed over the transistors. The interlevel dielectric layer includes a first region and a second region with a higher dielectric constant than the first region. The difference in dielectric constant is produced by curing the first region shielding the second region from the curing. Metal signal lines are formed in the first region. Metal-on-metal capacitors are formed in the second region.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: April 9, 2024
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventor: Anhao Cheng
  • Patent number: 11951587
    Abstract: The present disclosure is directed to techniques of zone-based target control in chemical mechanical polishing of wafers. Multiple zones are identified on a surface of a wafer. The CMP target is achieved on each zone in a sequence of CMP processes. Each CMP process in the sequence achieves the CMP target for only one zone, using a CMP process selective to other zones.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: April 9, 2024
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Che-Liang Chung, Che-Hao Tu, Kei-Wei Chen, Chih-Wen Liu
  • Patent number: 11955486
    Abstract: An integrated circuit device includes a first device and a second device. The first device is disposed within a first circuit region, the first device including a plurality of first semiconductor strips extending longitudinally in a first direction. Adjacent ones of the plurality of first semiconductor strips are spaced apart from each other in a second direction, which is generally perpendicular to the first direction. The second device is disposed within a second circuit region, the second circuit region being adjacent to the first circuit region in the first direction. The second device includes a second semiconductor strip extending longitudinally in the first direction. A projection of a longitudinal axis of the second semiconductor strip along the first direction lies in a space separating the adjacent ones of the plurality of first semiconductor strips.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: April 9, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventor: Jhon Jhy Liaw
  • Patent number: 11955423
    Abstract: Methods for forming dummy under-bump metallurgy structures and semiconductor devices formed by the same are disclosed. In an embodiment, a semiconductor device includes a first redistribution line and a second redistribution line over a semiconductor substrate; a first passivation layer over the first redistribution line and the second redistribution line; a second passivation layer over the first passivation layer; a first under-bump metallurgy (UBM) structure over the first redistribution line, the first UBM structure extending through the first passivation layer and the second passivation layer and being electrically coupled to the first redistribution line; and a second UBM structure over the second redistribution line, the second UBM structure extending through the second passivation layer, the second UBM structure being electrically isolated from the second redistribution line by the first passivation layer.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: April 9, 2024
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Ting-Li Yang, Po-Hao Tsai, Ming-Da Cheng, Yung-Han Chuang, Hsueh-Sheng Wang
  • Patent number: 11955455
    Abstract: A method includes bonding a first package component over a second package component. The second package component includes a plurality of dielectric layers, and a plurality of redistribution lines in the plurality of dielectric layers. The method further includes dispensing a stress absorber on the second package component, curing the stress absorber, and forming an encapsulant on the second package component and the stress absorber.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: April 9, 2024
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Shin-Puu Jeng, Chien-Sheng Chen, Po-Yao Lin, Po-Chen Lai, Shu-Shen Yeh
  • Patent number: 11955501
    Abstract: The present disclosure describes a method for the formation of mirror micro-structures on radiation-sensing regions of image sensor devices. The method includes forming an opening within a front side surface of a substrate; forming a conformal implant layer on bottom and sidewall surfaces of the opening; growing a first epitaxial layer on the bottom and the sidewall surfaces of the opening; depositing a second epitaxial layer on the first epitaxial layer to fill the opening, where the second epitaxial layer forms a radiation-sensing region. The method further includes depositing a stack on exposed surfaces of the second epitaxial layer, where the stack includes alternating pairs of a high-refractive index material layer and a low-refractive index material layer.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: April 9, 2024
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Shih-Yu Liao, Tsai-Hao Hung, Ying-Hsun Chen
  • Patent number: 11955527
    Abstract: A method includes forming a first sacrificial layer over a substrate, and forming a sandwich structure over the first sacrificial layer. The sandwich structure includes a first isolation layer, a two-dimensional material over the first isolation layer, and a second isolation layer over the two-dimensional material. The method further includes forming a second sacrificial layer over the sandwich structure, forming a first source/drain region and a second source/drain region on opposing ends of, and contacting sidewalls of, the two-dimensional material, removing the first sacrificial layer and the second sacrificial layer to generate spaces, and forming a gate stack filling the spaces.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: April 9, 2024
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chao-Ching Cheng, Yi-Tse Hung, Hung-Li Chiang, Tzu-Chiang Chen, Lain-Jong Li, Jin Cai
  • Patent number: 11955535
    Abstract: Semiconductor devices and methods of forming the same are provided. A semiconductor device according to one embodiment includes an active region including a channel region and a source/drain region adjacent the channel region, a gate structure over the channel region of the active region, a source/drain contact over the source/drain region, a dielectric feature over the gate structure and including a lower portion adjacent the gate structure and an upper portion away from the gate structure, and an air gap disposed between the gate structure and the source/drain contact. A first width of the upper portion of the dielectric feature along a first direction is greater than a second width of the lower portion of the dielectric feature along the first direction. The air gap is disposed below the upper portion of the dielectric feature.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: April 9, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chia-Hao Chang, Lin-Yu Huang, Sheng-Tsung Wang, Cheng-Chi Chuang, Yu-Ming Lin, Chih-Hao Wang
  • Patent number: 11955317
    Abstract: A radio frequency (RF) match assembly for a chemical vapor deposition processing chamber. The assembly includes a top electrically insulating column and a bottom electrically insulating column. The assembly further includes a one-piece RF match strap that has a head, a main body and a body extension. The main body of the one-piece RF match strap is configured to extend through the top electrically insulating column and the bottom electrically insulating column. A flexible chamber lid strap connects the processing chamber to the top of the one piece RF match strap.
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: April 9, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Ming-Sze Chen, Yu Li Wang, Yin-Tun Chou, Yuan-Hsin Chi, Sheng-Yuan Lin
  • Patent number: 11956948
    Abstract: A memory device includes a substrate, a first transistor and a second transistor, a first word line, a second word line, and a bit line. The first transistor and the second transistor are over the substrate and are electrically connected to each other, in which each of the first and second transistors includes first semiconductor layers and second semiconductor layers, a gate structure, and source/drain structures, in which the first semiconductor layers are in contact with the second semiconductor layers, and a width of the first semiconductor layers is narrower than a width of the second semiconductor layers. The first word line is electrically connected to the gate structure of the first transistor. The second word line is electrically connected to the gate structure of the second transistor. The bit line is electrically connected to a first one of the source/drain structures of the first transistor.
    Type: Grant
    Filed: April 1, 2022
    Date of Patent: April 9, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Hsin-Wen Su, Yu-Kuan Lin, Shih-Hao Lin, Lien-Jung Hung, Ping-Wei Wang
  • Patent number: 11955515
    Abstract: A semiconductor device with dual side source/drain (S/D) contact structures and a method of fabricating the same are disclosed. The method includes forming a fin structure on a substrate, forming a superlattice structure on the fin structure, forming first and second S/D regions within the superlattice structure, forming a gate structure between the first and second S/D regions, forming first and second contact structures on first surfaces of the first and second S/D regions, and forming a third contact structure, on a second surface of the first S/D region, with a work function metal (WFM) silicide layer and a dual metal liner. The second surface is opposite to the first surface of the first S/D region and the WFM silicide layer has a work function value closer to a conduction band energy than a valence band energy of a material of the first S/D region.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: April 9, 2024
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Shih-Chuan Chiu, Chia-Hao Chang, Cheng-Chi Chuang, Chih-Hao Wang, Huan-Chieh Su, Chun-Yuan Chen, Li-Zhen Yu, Yu-Ming Lin
  • Patent number: 11956553
    Abstract: An image sensor device has a first number of first pixels disposed in a substrate and a second number of second pixels disposed in the substrate. The first number is substantially equal to the second number. A light-blocking structure disposed over the first pixels and the second pixels. The light-blocking structure defines a plurality of first openings and second openings through which light can pass. The first openings are disposed over the first pixels. The second openings are disposed over the second pixels. The second openings are smaller than the first openings. A microcontroller is configured to turn on different ones of the second pixels at different points in time.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: April 9, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yun-Wei Cheng, Chun-Hao Chou, Kuo-Cheng Lee, Hsin-Chi Chen
  • Patent number: 11955338
    Abstract: A method includes providing a substrate having a surface such that a first hard mask layer is formed over the surface and a second hard mask layer is formed over the first hard mask layer, forming a first pattern in the second hard mask layer, where the first pattern includes a first mandrel oriented lengthwise in a first direction and a second mandrel oriented lengthwise in a second direction different from the first direction, and where the first mandrel has a top surface, a first sidewall, and a second sidewall opposite to the first sidewall, and depositing a material towards the first mandrel and the second mandrel such that a layer of the material is formed on the top surface and the first sidewall but not the second sidewall of the first mandrel.
    Type: Grant
    Filed: January 30, 2023
    Date of Patent: April 9, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Shih-Chun Huang, Ya-Wen Yeh, Chien-Wen Lai, Wei-Liang Lin, Ya Hui Chang, Yung-Sung Yen, Ru-Gun Liu, Chin-Hsiang Lin, Yu-Tien Shen
  • Patent number: 11955329
    Abstract: A method of forming a semiconductor device includes forming a first conductive feature on a bottom surface of an opening through a dielectric layer. The forming the first conductive feature leaves seeds on sidewalls of the opening. A treatment process is performed on the seeds to form treated seeds. The treated seeds are removed with a cleaning process. The cleaning process may include a rinse with deionized water. A second conductive feature is formed to fill the opening.
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: April 9, 2024
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Cheng-Wei Chang, Min-Hsiu Hung, Chun-I Tsai, Ken-Yu Chang, Yi-Ying Liu
  • Patent number: 11955554
    Abstract: A method of fabrication of a multi-gate semiconductor device that includes providing a fin having a plurality of a first type of epitaxial layers and a plurality of a second type of epitaxial layers. The plurality of the second type of epitaxial layers is oxidized in the source/drain region. A first portion of a first layer of the second type of epitaxial layers is removed in a channel region of the fin to form an opening between a first layer of the first type of epitaxial layer and a second layer of the first type of epitaxial layer. A portion of a gate structure is then formed in the opening.
    Type: Grant
    Filed: July 15, 2022
    Date of Patent: April 9, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Huan-Sheng Wei, Hung-Li Chiang, Chia-Wen Liu, Yi-Ming Sheu, Zhiqiang Wu, Chung-Cheng Wu, Ying-Keung Leung
  • Patent number: 11955370
    Abstract: A system and methods of forming a dielectric material within a trench are described herein. In an embodiment of the method, the method includes introducing a first precursor into a trench of a dielectric layer, such that portions of the first precursor react with the dielectric layer and attach on sidewalls of the trench. The method further includes partially etching portions of the first precursor on the sidewalls of the trench to expose upper portions of the sidewalls of the trench. The method further includes introducing a second precursor into the trench, such that portions of the second precursor react with the remaining portions of the first precursor to form the dielectric material at the bottom of the trench.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: April 9, 2024
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Bo-Cyuan Lu, Ting-Gang Chen, Sung-En Lin, Chunyao Wang, Yung-Cheng Lu, Chi On Chui, Tai-Chun Huang, Chieh-Ping Wang
  • Patent number: 11955380
    Abstract: In one example, a semiconductor device includes a first conductive feature embedded in a first dielectric layer such that a top surface of the first dielectric layer is higher than a top surface of first conductive feature, a contact etch stop layer (CESL) disposed on the first dielectric layer, and a second conductive feature embedded in a second dielectric layer. The second dielectric layer is disposed on the CESL and the second conductive feature extends through the CESL and is in direct contact with the first conductive feature.
    Type: Grant
    Filed: November 18, 2022
    Date of Patent: April 9, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Kuo-Chiang Tsai, Jyh-Huei Chen
  • Patent number: 11955201
    Abstract: A memory device includes a plurality of arrays coupled in parallel with each other. A first array of the plurality of arrays includes a first switch and a plurality of first memory cells that are arranged in a first column, a second switch and a plurality of second memory cells that are arranged in a second column, and at least one data line coupled to the plurality of first memory cells and the plurality of second memory cells. The second switch is configured to output a data signal from the at least one data line to a sense amplifier.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: April 9, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Meng-Sheng Chang, Chia-En Huang, Yi-Ching Liu, Yih Wang
  • Patent number: 11955442
    Abstract: In an embodiment, a structure includes a core substrate, a redistribution structure coupled, the redistribution structure including a plurality of redistribution layers, the plurality of redistribution layers comprising a dielectric layer and a metallization layer, a first local interconnect component embedded in a first redistribution layer of the plurality of redistribution layers, the first local interconnect component comprising conductive connectors, the conductive connectors being bonded to a metallization pattern of the first redistribution layer, the dielectric layer of the first redistribution layer encapsulating the first local interconnect component, a first integrated circuit die coupled to the redistribution structure, a second integrated circuit die coupled to the redistribution structure, an interconnect structure of the first local interconnect component electrically coupling the first integrated circuit die to the second integrated circuit die, and a set of conductive connectors coupled to a
    Type: Grant
    Filed: February 27, 2023
    Date of Patent: April 9, 2024
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Jiun Yi Wu, Chen-Hua Yu, Chung-Shi Liu
  • Patent number: 11955441
    Abstract: An interconnect structure comprises a first dielectric layer, a first metal layer, a second dielectric layer, a metal via, and a second metal layer. The first dielectric layer is over a substrate. The first metal layer is over the first dielectric layer. The first metal layer comprises a first portion and a second portion spaced apart from the first portion. The second dielectric layer is over the first metal layer. The metal via has an upper portion in the second dielectric layer, a middle portion between the first and second portions of the first metal layer, and a lower portion in the first dielectric layer. The second metal layer is over the metal via. From a top view the second metal layer comprises a metal line having longitudinal sides respectively set back from opposite sides of the first portion of the first metal layer.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: April 9, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Jian-Hong Lin, Kuo-Yen Liu, Hsin-Chun Chang, Tzu-Li Lee, Yu-Ching Lee, Yih-Ching Wang