Patents by Inventor Yu-Sheng Chen

Yu-Sheng Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11605779
    Abstract: Provided are a memory cell and a method of forming the same. The memory cell includes a first dielectric pattern, a second dielectric pattern, a first bottom electrode, a first storage pattern, and a first top electrode. The first bottom electrode is disposed between the first dielectric pattern and the second dielectric pattern, and the first bottom electrode interfaces a first sidewall of the first dielectric pattern and a sidewall of the second dielectric pattern. The first storage pattern is disposed on the first dielectric pattern, the second dielectric pattern and the first bottom electrode, wherein the first storage pattern is electrically connected to the first bottom electrode. The first storage pattern is between the first bottom electrode and the first top electrode. A semiconductor die including a memory array is also provided.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: March 14, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hung-Li Chiang, Jer-Fu Wang, Jung-Piao Chiu, Yu-Sheng Chen, Tzu-Chiang Chen
  • Patent number: 11588106
    Abstract: In some embodiments, the present disclosure relates to a method of forming an integrated chip that includes depositing a phase change material layer over a bottom electrode. The phase change material is configured to change its degree of crystallinity upon temperature changes. A top electrode layer is deposited over the phase change material layer, and a hard mask layer is deposited over the top electrode layer. The top electrode layer and the hard mask layer are patterned to remove outer portions of the top electrode layer and to expose outer portions of the phase change material layer. An isotropic etch is performed to remove portions of the phase change material layer that are uncovered by the top electrode layer and the hard mask layer. The isotropic etch removes the portions of the phase change material layer faster than portions of the top electrode layer and the hard mask layer.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: February 21, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yu Chao Lin, Jui-Ming Chen, Shao-Ming Yu, Tung Ying Lee, Yu-Sheng Chen
  • Patent number: 11581039
    Abstract: Various embodiments provide methods for configuring a phase-change random-access memory (PCRAM) structures, such as PCRAM operating in a single-level-cell (SLC) mode or a multi-level-cell (MLC) mode. Various embodiments may support a PCRAM structure being operating in a SLC mode for lower power and a MLC mode for lower variability. Various embodiments may support a PCRAM structure being operating in a SLC mode or a MLC mode based at least in part on an error tolerance for a neural network layer.
    Type: Grant
    Filed: January 18, 2021
    Date of Patent: February 14, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Win-San Khwa, Kerem Akarvardar, Yu-Sheng Chen
  • Publication number: 20230008947
    Abstract: A control method to operate a memory device, a control method to operate a memory system and a control system are provided. The control method includes providing a first voltage to a memory device for accessing a memory element of the memory device; obtaining an aging information of the memory device; and providing a second voltage to the memory device according to the aging information, wherein the first voltage and the second voltage are reverse biased voltages.
    Type: Application
    Filed: February 8, 2022
    Publication date: January 12, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hengyuan Lee, Cheng-Hsien Wu, Yu-Sheng Chen, Chien-Min Lee, Xinyu BAO
  • Publication number: 20220415391
    Abstract: An operation method for a memory device is provided. The memory device includes a two-terminal selector and a resistance variable storage element coupled to the two-terminal selector. The method includes providing a voltage pulse to the memory device. A voltage applied across the two-terminal selector during a falling part of the voltage pulse falls below a holding voltage of the two-terminal selector. A voltage falling rate of the falling part at which the voltage applied across the two-terminal selector reaches the holding voltage is raised for reducing threshold voltage drift of the two-terminal selector.
    Type: Application
    Filed: January 18, 2022
    Publication date: December 29, 2022
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hengyuan Lee, Cheng-Hsien Wu, Yu-Sheng Chen, Elia Ambrosi, Chien-Min Lee, Xinyu BAO
  • Publication number: 20220366977
    Abstract: A method includes: generating a first difference between a first resistance value of a first memory cell and a first predetermined resistance value; generating a first signal based on the first difference; applying the first signal to the first memory cell to adjust the first resistance value; and after the first signal is applied to the first memory cell, comparing the first resistance value and the first predetermined resistance value, to further adjust the first resistance value until the first resistance value reaches the first predetermined resistance value. A memory device is also disclosed herein.
    Type: Application
    Filed: July 28, 2022
    Publication date: November 17, 2022
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Jau-Yi WU, Win-San KHWA, Jin CAI, Yu-Sheng CHEN
  • Publication number: 20220367569
    Abstract: The present disclosure relates to an integrated circuit. The integrated circuit has a plurality of bit-line stacks disposed over a substrate and respectively including a plurality of bit-lines stacked onto one another. A data storage structure is over the plurality of bit-line stacks and a selector is over the data storage structure. A word-line is over the selector. The selector is configured to selectively allow current to pass between the plurality of bit-lines and the word-line. The plurality of bit-line stacks include a first bit-line stack, a second bit-line stack, and a third bit-line stack. The first and third bit-line stacks are closest bit-line stacks to opposing sides of the second bit-line stack. The second bit-line stack is separated from the first bit-line stack by a first distance and is further separated from the third bit-line stack by a second distance larger than the first distance.
    Type: Application
    Filed: July 27, 2022
    Publication date: November 17, 2022
    Inventors: Hung-Li Chiang, Chao-Ching Cheng, Jung-Piao Chiu, Tzu-Chiang Chen, Yu-Sheng Chen
  • Publication number: 20220366941
    Abstract: A memory device includes transistors and a memory cell array disposed over and electrically coupled to the transistors. The memory cell array includes word lines, bit line columns, and data storage layers interposed between the word lines and the bit line columns. A first portion of the word lines on odd-numbered tiers of the memory cell array is oriented in a first direction, and a second portion of the word lines on even-numbered tiers of the memory cell array is oriented in a second direction that is angularly offset from the first direction. The bit line columns pass through the odd-numbered tiers and the even-numbered tiers, and each of the bit line columns is encircled by one of the data storage layers. A semiconductor die and a manufacturing method of a semiconductor structure are also provided.
    Type: Application
    Filed: July 28, 2021
    Publication date: November 17, 2022
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jung-Piao Chiu, Yu-Sheng Chen
  • Publication number: 20220344582
    Abstract: A memory cell includes a bottom electrode, a storage element layer, a first buffer layer, and a top electrode. The storage element layer is disposed over the bottom electrode. The first buffer layer is interposed between the storage element layer and the bottom electrode, where a thermal conductivity of the first buffer layer is less than a thermal conductivity of the storage element layer. The top electrode is disposed over the storage element layer, where the storage element layer is disposed between the top electrode and the first buffer layer.
    Type: Application
    Filed: July 6, 2021
    Publication date: October 27, 2022
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yu-Chao Lin, Yu-Sheng Chen, Carlos H. Diaz, Da-Ching Chiou
  • Publication number: 20220344583
    Abstract: A memory cell includes a dielectric structure, a storage element structure, and a top electrode. The storage element structure is disposed in the dielectric structure, and the storage element structure includes a first portion and a second portion. The first portion includes a first side and a second side opposite to the first side, where a width of the first side is less than a width of the second side. The second portion is connected to the second side of the first portion, where a width of the second portion is greater than the width of the first side. The top electrode is disposed on the storage element structure, where the second portion is disposed between the first portion and the top electrode.
    Type: Application
    Filed: July 20, 2021
    Publication date: October 27, 2022
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yu-Chao Lin, Yu-Sheng Chen, Da-Ching Chiou
  • Patent number: 11482571
    Abstract: The present disclosure relates to an integrated circuit. The integrated circuit has a plurality of bit-line stacks disposed over a substrate and respectively including a plurality of bit-lines stacked onto one another. A data storage structure is over the plurality of bit-line stacks and a selector is over the data storage structure. A word-line is over the selector. The selector is configured to selectively allow current to pass between the plurality of bit-lines and the word-line. The plurality of bit-line stacks include a first bit-line stack, a second bit-line stack, and a third bit-line stack. The first and third bit-line stacks are closest bit-line stacks to opposing sides of the second bit-line stack. The second bit-line stack is separated from the first bit-line stack by a first distance and is further separated from the third bit-line stack by a second distance larger than the first distance.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: October 25, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hung-Li Chiang, Chao-Ching Cheng, Jung-Piao Chiu, Tzu-Chiang Chen, Yu-Sheng Chen
  • Publication number: 20220335983
    Abstract: A semiconductor device includes logic circuitry including a transistor disposed over a substrate, multiple layers each including metal wiring layers and an interlayer dielectric layer, respectively, disposed over the logic circuitry, and memory arrays. The multiple layers of metal wiring include, in order closer to the substrate, first, second, third and fourth layers, and the memory arrays include lower multiple layers disposed in the third layer.
    Type: Application
    Filed: July 1, 2022
    Publication date: October 20, 2022
    Inventors: Hung-Li CHIANG, Yu-Sheng CHEN, Chao-Ching CHENG, Tzu-Chiang CHEN
  • Patent number: 11443803
    Abstract: A method includes: applying a first signal to memory cells in a memory device, to adjust resistance values of the memory cells; after applying the first signal, applying a second signal to the memory cells other than a first memory cell in the memory cells, to further adjust the resistance values of the memory cells other than the first memory cell. A memory device is also disclosed herein.
    Type: Grant
    Filed: November 11, 2020
    Date of Patent: September 13, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Jau-Yi Wu, Win-San Khwa, Jin Cai, Yu-Sheng Chen
  • Publication number: 20220285617
    Abstract: A memory device is provided. The memory device includes a bottom electrode, a first data storage layer, a second data storage layer, an interfacial conductive layer and a top electrode. The first data storage layer is disposed on the bottom electrode and in contact with the bottom electrode. The second data storage layer is disposed over the first data storage layer. The interfacial conductive layer is disposed between the first data storage layer and the second data storage layer. The top electrode is disposed over the second data storage layer.
    Type: Application
    Filed: June 30, 2021
    Publication date: September 8, 2022
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tung-Ying Lee, Shao-Ming Yu, Kai-Tai Chang, Hung-Li Chiang, Yu-Sheng Chen
  • Publication number: 20220269157
    Abstract: An illumination system and a projection device having good uniformity are provided. The illumination system includes at least one light source, a depolarizing element, and a light homogenizing element. The at least one light source is configured to provide multiple beams. The depolarizing element is disposed on a transmission path of the beams. The depolarizing element includes a first optical element, which is wedge-shaped and has a first optical axis. A direction of any one of the beams incident onto the first optical element is parallel to the first optical axis. The beams respectively become multiple linearly polarized beams with different polarization directions after passing through the first optical element. The light homogenizing element is configured to allow the linearly polarized beams to pass through to form an illumination beam. The depolarizing element is located between the at least one light source and the light homogenizing element.
    Type: Application
    Filed: February 24, 2022
    Publication date: August 25, 2022
    Applicant: Coretronic Corporation
    Inventors: Yu-Sheng Chen, Jo-Han Hsu, Kuan-Ta Huang, Chi-Tang Hsieh
  • Publication number: 20220262861
    Abstract: A memory device includes a first electrode, a selector layer and a plurality of first work function layers. The first work function layers are disposed between the first electrode and the selector layer, and a work function of the first work function layer increases as the first work function layer becomes closer to the selector layer.
    Type: Application
    Filed: May 5, 2022
    Publication date: August 18, 2022
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hung-Li Chiang, Jung-Piao Chiu, Tzu-Chiang Chen, Yu-Sheng Chen, Xinyu BAO
  • Publication number: 20220230681
    Abstract: Various embodiments provide methods for configuring a phase-change random-access memory (PCRAM) structures, such as PCRAM operating in a single-level-cell (SLC) mode or a multi-level-cell (MLC) mode. Various embodiments may support a PCRAM structure being operating in a SLC mode for lower power and a MLC mode for lower variability. Various embodiments may support a PCRAM structure being operating in a SLC mode or a MLC mode based at least in part on an error tolerance for a neural network layer.
    Type: Application
    Filed: January 18, 2021
    Publication date: July 21, 2022
    Inventors: Win-San KHWA, Kerem AKARVARDAR, Yu-Sheng CHEN
  • Publication number: 20220216400
    Abstract: Provided are a memory cell and a method of forming the same. The memory cell includes a first dielectric pattern, a second dielectric pattern, a first bottom electrode, a first storage pattern, and a first top electrode. The first bottom electrode is disposed between the first dielectric pattern and the second dielectric pattern, and the first bottom electrode interfaces a first sidewall of the first dielectric pattern and a sidewall of the second dielectric pattern. The first storage pattern is disposed on the first dielectric pattern, the second dielectric pattern and the first bottom electrode, wherein the first storage pattern is electrically connected to the first bottom electrode. The first storage pattern is between the first bottom electrode and the first top electrode. A semiconductor die including a memory array is also provided.
    Type: Application
    Filed: January 7, 2021
    Publication date: July 7, 2022
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hung-Li Chiang, Jer-Fu Wang, Jung-Piao Chiu, Yu-Sheng Chen, Tzu-Chiang Chen
  • Patent number: 11380369
    Abstract: A semiconductor device includes logic circuitry including a transistor disposed over a substrate, multiple layers each including metal wiring layers and an interlayer dielectric layer, respectively, disposed over the logic circuitry, and memory arrays. The multiple layers of metal wiring include, in order closer to the substrate, first, second, third and fourth layers, and the memory arrays include lower multiple layers disposed in the third layer.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: July 5, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Hung-Li Chiang, Yu-Sheng Chen, Chao-Ching Cheng, Tzu-Chiang Chen
  • Patent number: 11338879
    Abstract: A coupling mechanism for a vehicle body having mutually pivotable first and second frames comprises an axle fixed to the first frame, a rotating member fixed to the second frame and rotatably mounted around the axle, and a torsional resistance module that is actuated when the axle and the rotating member rotate relative to each other. The torsional resistance module includes two force magnifying mechanisms connected between the first frame and the rotating member. A buffering member is disposed between the force magnifying mechanisms. When the buffering member is pressed, a relative torsional resistance is provided between the first and second frames through transmission of the force magnifying mechanisms. The torsional resistance has a non-linear relationship with a relative rotational angle between the first and second frames.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: May 24, 2022
    Assignee: LI YUAN TRANSMISSION CO., LTD.
    Inventors: Chyuan-Yow Tseng, Keng-Yu Ko, Yu-Sheng Chen