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: 11862243
    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: Grant
    Filed: July 28, 2022
    Date of Patent: January 2, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Jau-Yi Wu, Win-San Khwa, Jin Cai, Yu-Sheng Chen
  • Publication number: 20230422517
    Abstract: A selector structure may include a bottom electrode including a bottom low thermal conductivity (LTC) metal and a first bottom high thermal conductivity (HTC) metal, a first switching film on the bottom electrode and having an electrical resistivity switchable by an electric field, and a first top electrode on the first switching film and including a first top low thermal conductivity (LTC) metal and a first top high thermal conductivity (HTC) metal.
    Type: Application
    Filed: June 27, 2022
    Publication date: December 28, 2023
    Inventors: Hung-Ju LI, Kuo-Pin Chang, Yu-Wei Ting, Yu-Sheng Chen, Ching-En Chen, Kuo-Ching Huang
  • Patent number: 11837611
    Abstract: Disclosed herein, in some embodiments, is a memory device. The memory device includes a bottom electrode disposed over a substrate and a top electrode disposed over the bottom electrode. An upper surface of the bottom electrode faces away from the substrate. A bottom surface of the top electrode faces the substrate. A data storage layer is arranged between the bottom electrode and the top electrode. At least a portion of the bottom surface of the top electrode does not overlap with any portion of the top surface of the bottom electrode along a first direction parallel to the bottom surface of the top electrode. Furthermore, at least a portion of the top surface of the bottom electrode does not overlap with any portion of the bottom surface of the top electrode along the first direction.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: December 5, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hung-Li Chiang, Chao-Ching Cheng, Jung-Piao Chiu, Tzu-Chiang Chen, Yu-Sheng Chen
  • Publication number: 20230378202
    Abstract: Disclosed herein, in some embodiments, is a memory device. The memory device includes a bottom electrode disposed over a substrate and a top electrode disposed over the bottom electrode. An upper surface of the bottom electrode faces away from the substrate. A bottom surface of the top electrode faces the substrate. A data storage layer is arranged between the bottom electrode and the top electrode. At least a portion of the bottom surface of the top electrode does not overlap with any portion of the top surface of the bottom electrode along a first direction parallel to the bottom surface of the top electrode. Furthermore, at least a portion of the top surface of the bottom electrode does not overlap with any portion of the bottom surface of the top electrode along the first direction.
    Type: Application
    Filed: July 27, 2023
    Publication date: November 23, 2023
    Inventors: Hung-Li Chiang, Chao-Ching Cheng, Jung-Piao Chiu, Tzu-Chiang Chen, Yu-Sheng Chen
  • Publication number: 20230368819
    Abstract: A memory device includes a memory cell array. The memory cell array includes first-tier word lines extending in a first direction, second-tier word lines disposed below the first-tier word lines and extending in a second direction angularly offset from the first direction, and bit lines extending in a third direction angularly offset from the first and second directions. The bit lines are arranged between a pair of the first-tier word lines and between a pair of the second-tier word lines.
    Type: Application
    Filed: July 20, 2023
    Publication date: November 16, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jung-Piao Chiu, Yu-Sheng Chen
  • Patent number: 11805662
    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: Grant
    Filed: May 5, 2022
    Date of Patent: October 31, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hung-Li Chiang, Jung-Piao Chiu, Tzu-Chiang Chen, Yu-Sheng Chen, Xinyu Bao
  • Publication number: 20230299042
    Abstract: A method according to the present disclosure includes forming a plurality of transistors in a first wafer and forming a memory array in a second wafer. A first surface of the first wafer includes a first plurality of bonding pads electrically coupled to the transistors. The memory array includes a plurality of ferroelectric tunnel junction (FTJ) stacks. A second surface of the second wafer includes a second plurality of bonding pads electrically coupled to the FTJ stacks. The method also includes performing a thermal treatment to the FTJ stacks in the second wafer, and after the performing of the thermal treatment, bonding the first surface of the first wafer with the second surface of the second wafer. The transistors are coupled to the memory cells through the first plurality of bonding pads and the second plurality of bonding pads.
    Type: Application
    Filed: July 28, 2022
    Publication date: September 21, 2023
    Inventors: Yi-Hsuan Chen, Kuen-Yi Chen, Yi Ching Ong, KUO-CHING Huang, HARRY-HAK-LAY CHUANG, Yu-Sheng Chen
  • Patent number: 11763857
    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: Grant
    Filed: July 28, 2021
    Date of Patent: September 19, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jung-Piao Chiu, Yu-Sheng Chen
  • Patent number: 11709417
    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: Grant
    Filed: February 24, 2022
    Date of Patent: July 25, 2023
    Assignee: Coretronic Corporation
    Inventors: Yu-Sheng Chen, Jo-Han Hsu, Kuan-Ta Huang, Chi-Tang Hsieh
  • Publication number: 20230215255
    Abstract: This document describes techniques, apparatuses, and systems for batch size adjustment using latency-critical event recognition. The techniques described herein enable an electronic device (e.g., security camera) to determine the likelihood of an event of interest (e.g., latency-critical event) occurring in data (e.g., audio and/or video) captured by the electronic device. To make such a determination, the electronic device may switch upload modes to upload the data, using a different batch size to reduce latency, to another device for user access, based on the likelihood of an event of interest occurring in the data. In this way, the techniques, apparatuses, and systems for batch size adjustment using latency-critical event recognition provide an efficient way to provide all-day security monitoring.
    Type: Application
    Filed: January 4, 2022
    Publication date: July 6, 2023
    Applicant: Google LLC
    Inventors: Yu-sheng Chen, Matthew Wagner
  • Publication number: 20230197150
    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: February 13, 2023
    Publication date: June 22, 2023
    Inventors: Win-San KHWA, Kerem AKARVARDAR, Yu-Sheng CHEN
  • 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