Patents by Inventor Yi-Chun Shih

Yi-Chun Shih 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).

  • Publication number: 20250151287
    Abstract: A memory device includes a memory array comprising a plurality of memory cells arranged over a plurality of rows, the rows including a plurality of word lines, respectively, a first group of the memory cells coupled to an even-numbered one of the word lines and a second group of the memory cells coupled to an odd-numbered one of the word lines. The even-numbered word line is disposed in a first one of a plurality of metallization layers formed vertically above a substrate, wherein the even-numbered word line extends along a first lateral direction and includes a first stitch portion extending in a second lateral direction perpendicular to the first lateral direction. The odd-numbered word line is disposed in a second one of the plurality of metallization layers, wherein the odd-numbered word line extends along the first lateral direction and includes a second stitch portion extending in the second lateral direction.
    Type: Application
    Filed: March 14, 2024
    Publication date: May 8, 2025
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ku-Feng Lin, Ji-Kuan Lee, Wen-Chun You, Perng-Fei Yuh, Yi-Chun Shih, Yih Wang
  • Publication number: 20250117642
    Abstract: Disclosed is a methods and apparatus which can improve defect tolerability of a hardware-based neural network. In one embodiment, a method for performing a calculation of values on first neurons of a first layer in a neural network, includes: receiving a first pattern of a memory cell array; determining a second pattern of the memory cell array according to a third pattern; determining at least one pair of columns of the memory cell array according to the first pattern and the second pattern; switching input data of two columns of each of the at least one pair of columns of the memory cell array; and switching output data of the two columns in each of the at least one pair of columns of the memory cell array so as to determine the values on the first neurons of the first layer.
    Type: Application
    Filed: December 16, 2024
    Publication date: April 10, 2025
    Inventors: Win-San KHWA, Yu-Der CHIH, Yi-Chun SHIH, Chien-Yin LIU
  • Publication number: 20250117035
    Abstract: A reference voltage generator includes an input terminal configured to receive an enable signal and an output terminal configured to provide an output signal. A voltage generator circuit is arranged to generate a first output voltage signal, and a pre-settling circuit is arranged to generate a second output voltage. The pre-settling circuit is configured to provide the second output voltage signal at the output terminal in response to the enable signal received at the input terminal, and following a first time period provide the first output voltage at the output terminal.
    Type: Application
    Filed: November 6, 2024
    Publication date: April 10, 2025
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yen-An Chang, Yi-Chun Shih, Chieh-Pu Lo
  • Publication number: 20250094126
    Abstract: A memory circuit includes a column of memory cells configured to receive a set of kth bits of a number H of bits of each input data element of a plurality of input data elements, and each memory cell of the column of memory cells is configured to multiply the kth bit of a corresponding input data element of the plurality of data elements with a first weight data element stored in the memory cell, and to generate a corresponding first product data element. The memory circuit includes an adder tree configured to generate a summation data element based on each of the first product data elements.
    Type: Application
    Filed: December 4, 2024
    Publication date: March 20, 2025
    Inventors: Yu-Der CHIH, Hidehiro FUJIWARA, Yi-Chun SHIH, Po-Hao LEE, Yen-Huei CHEN, Chia-Fu LEE, Jonathan Tsung-Yung CHANG
  • Publication number: 20250095702
    Abstract: Systems and methods are provided for a computing-in memory circuit that includes a bit line and a plurality of computing cells connected to the bit line. Each of the plurality of computing cells includes a memory element, having a data output terminal; a logic element, having a first input terminal, a second input terminal and an output terminal, wherein the first input terminal is coupled to the data output terminal of the memory element, the second input terminal receives a select signal; and a capacitor, having a first terminal and a second terminal, where the first terminal is coupled to the output terminal of the logic element, the second terminal is coupled to the bit line. A voltage of the bit line is driven by the plurality of computing cells.
    Type: Application
    Filed: December 4, 2024
    Publication date: March 20, 2025
    Inventors: Yi-Chun Shih, Chia-Fu Lee, Yu-Der Chih, Jonathan Tsung-Yung Chang
  • Publication number: 20250087265
    Abstract: A memory cell includes a memory circuit and a computing-in memory (CIM) circuit. The memory cell is configured to store a first value of a first signal of a first storage node. The CIM circuit is coupled to the memory cell, and configured to generate an output signal in response to the first signal and a second signal. The output signal corresponding to a CIM product operation of the first signal and the second signal. The CIM circuit includes an output node configured to output the output signal, a first transistor coupled to the output node and the memory cell, and being configured to receive at least the second signal, and an initialization circuit coupled to the first transistor by the output node, and being configured to initialize the CIM circuit in response to a third signal.
    Type: Application
    Filed: November 26, 2024
    Publication date: March 13, 2025
    Inventors: Hon-Jarn LIN, Chia-Fu LEE, Yi-Chun SHIH
  • Publication number: 20250078890
    Abstract: A memory device includes a plurality of circuit layers, a plurality of first conductive through via structures and a plurality of bitlines. The circuit layers are disposed one above another, and each circuit layer includes one or more memory cell arrays. The first conductive through via structures penetrates though the circuit layers. Each of the bitlines includes a plurality of bitline segments disposed on the circuit layers respectively. The bitline segments are electrically connected through one of the first conductive through via structures. Each bitline segment is coupled to a plurality of memory cells of a memory cell array of a circuit layer where the bitline segment is disposed.
    Type: Application
    Filed: November 15, 2024
    Publication date: March 6, 2025
    Inventors: SHIH-LIEN LINUS LU, FONG-YUAN CHANG, YI-CHUN SHIH
  • Publication number: 20250078892
    Abstract: A memory device includes a plurality of magnetoresistive random-access memory (MRAM) cells including a first one-time programmable (OTP) MRAM cell. A first OTP select transistor is connected to the first OTP MRAM cell. The first OTP select transistor configured to selectively apply a breakdown current to the first OTP MRAM cell to write the first OTP MRAM cell to a breakdown state.
    Type: Application
    Filed: November 14, 2024
    Publication date: March 6, 2025
    Inventors: Po-Hao Lee, Chia-Fu Lee, Yi-Chun Shih
  • Publication number: 20250078921
    Abstract: A circuit includes a first transistor and a second transistor cross-coupled with each other such that a source of the first transistor and a source of the second transistor are connected to a power supply, a gate of the first transistor is connected to a drain of the second transistor at a first node, a gate of the second transistor is connected to a drain of the first transistor at a second node. The circuit can provide a first level of a word line voltage to the memory cell by directly coupling the power supply configured at a first level to the memory cell through the second transistor and a third transistor, and provide a second level of the word line voltage by directly coupling the power supply configured at a second level to the memory cell through the second transistor and the third transistor.
    Type: Application
    Filed: November 21, 2024
    Publication date: March 6, 2025
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Po-Hao Lee, Chia-Fu Lee, Yi-Chun Shih
  • Patent number: 12237458
    Abstract: A micro light emitting device display apparatus including a substrate, a plurality of micro light emitting devices, an isolation layer, and at least one first air gap is provided. The substrate has a plurality of connection pads. The micro light emitting devices are discretely disposed on the substrate. The isolation layer is disposed between the substrate and each of the micro light emitting devices. The at least one first air gap is disposed between the substrate and a surface of the isolation layer facing the substrate.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: February 25, 2025
    Assignee: PlayNitride Display Co., Ltd.
    Inventors: Chih-Ling Wu, Yen-Yeh Chen, Yi-Min Su, Yi-Chun Shih
  • Patent number: 12211579
    Abstract: A memory device, such as an MRAM memory, includes a memory array with a plurality of bit cells. The memory array is configured to store trimming information and store user data. A sense amplifier is configured to read the trimming information from the memory array, and a trimming register is configured to receive the trimming information from the sense amplifier. The sense amplifier is configured to receive the trimming information from the trimming register so as to operate in a trimmed mode for reading the user data from the memory array.
    Type: Grant
    Filed: January 26, 2024
    Date of Patent: January 28, 2025
    Assignee: Taiwain Semiconductor Manufacturing Company, Ltd.
    Inventors: Yi-Chun Shih, Chia-Fu Lee, Yu-Der Chih
  • Patent number: 12205017
    Abstract: Disclosed is a methods and apparatus which can improve defect tolerability of a hardware-based neural network. In one embodiment, a method for performing a calculation of values on first neurons of a first layer in a neural network, includes: receiving a first pattern of a memory cell array; determining a second pattern of the memory cell array according to a third pattern; determining at least one pair of columns of the memory cell array according to the first pattern and the second pattern; switching input data of two columns of each of the at least one pair of columns of the memory cell array; and switching output data of the two columns in each of the at least one pair of columns of the memory cell array so as to determine the values on the first neurons of the first layer.
    Type: Grant
    Filed: August 8, 2023
    Date of Patent: January 21, 2025
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Win-San Khwa, Yu-Der Chih, Yi-Chun Shih, Chien-Yin Liu
  • Patent number: 12205632
    Abstract: A memory cell includes a memory circuit and a multiplier circuit. The multiplier circuit includes an output node configured to output the output signal, a first transistor and an initialization circuit. The first transistor is coupled to the output node and the memory circuit, and is configured to receive at least the second signal. The initialization circuit is coupled to the first transistor by the output node, and is configured to initialize the multiplier circuit in response to at least a third signal or a fourth signal. The memory circuit is configured to store a first value of a first signal of a first storage node. The multiplier circuit is coupled to the memory circuit. The multiplier circuit is configured to generate an output signal in response to the first signal and a second signal. The output signal corresponds to a product of the first signal and the second signal.
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: January 21, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Hon-Jarn Lin, Chia-Fu Lee, Yi-Chun Shih
  • Patent number: 12176063
    Abstract: Systems and methods are provided for a computing-in memory circuit that includes a bit line and a plurality of computing cells connected to the bit line. Each of the plurality of computing cells includes a memory element, having a data output terminal; a logic element, having a first input terminal, a second input terminal and an output terminal, wherein the first input terminal is coupled to the data output terminal of the memory element, the second input terminal receives a select signal; and a capacitor, having a first terminal and a second terminal, where the first terminal is coupled to the output terminal of the logic element, the second terminal is coupled to the bit line. A voltage of the bit line is driven by the plurality of computing cells.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: December 24, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yi-Chun Shih, Chia-Fu Lee, Yu-Der Chih, Jonathan Tsung-Yung Chang
  • Patent number: 12176016
    Abstract: A memory device includes a plurality of circuit layers, a plurality of first conductive through via structures and a plurality of bitlines. The circuit layers are disposed one above another, and each circuit layer includes one or more memory cell arrays. The first conductive through via structures penetrates though the circuit layers. Each of the bitlines includes a plurality of bitline segments disposed on the circuit layers respectively. The bitline segments are electrically connected through one of the first conductive through via structures. Each bitline segment is coupled to a plurality of memory cells of a memory cell array of a circuit layer where the bitline segment is disposed.
    Type: Grant
    Filed: September 22, 2023
    Date of Patent: December 24, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Shih-Lien Linus Lu, Fong-Yuan Chang, Yi-Chun Shih
  • Patent number: 12170105
    Abstract: A memory device includes a plurality of magnetoresistive random-access memory (MRAM) cells including a first one-time programmable (OTP) MRAM cell. A first OTP select transistor is connected to the first OTP MRAM cell. The first OTP select transistor configured to selectively apply a breakdown current to the first OTP MRAM cell to write the first OTP MRAM cell to a breakdown state.
    Type: Grant
    Filed: February 27, 2023
    Date of Patent: December 17, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd
    Inventors: Po-Hao Lee, Chia-Fu Lee, Yi-Chun Shih
  • Patent number: 12164882
    Abstract: A memory circuit includes a selection circuit, a column of memory cells, and an adder tree. The selection circuit is configured to receive input data elements, each input data element including a number of bits equal to H, and output a selected set of kth bits of the H bits of the input data elements. Each memory cell of the column of memory cells includes a first storage unit configured to store a first weight data element and a first multiplier configured to generate a first product data element based on the first weight data element and a first kth bit of the selected set of kth bits. The adder tree is configured to generate a summation data element based on each of the first product data elements.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: December 10, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Yu-Der Chih, Hidehiro Fujiwara, Yi-Chun Shih, Po-Hao Lee, Yen-Huei Chen, Chia-Fu Lee, Jonathan Tsung-Yung Chang
  • Patent number: 12164317
    Abstract: A voltage regulation circuit includes a voltage regulator that is configured to provide a stable output voltage based on an input voltage; and a control circuit, coupled to the voltage regulator, and configured to provide an injection current to maintain the stable output voltage in response to an enable signal provided at an input of the control circuit transitioning to a predetermined state and cease providing the injection current when the control circuit detects that a voltage level of the output voltage is higher than a pre-defined voltage level.
    Type: Grant
    Filed: August 10, 2023
    Date of Patent: December 10, 2024
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yen-An Chang, Chia-Fu Lee, Yu-Der Chih, Yi-Chun Shih
  • Patent number: 12165703
    Abstract: A circuit includes a first transistor and a second transistor cross-coupled with each other such that a source of the first transistor and a source of the second transistor are connected to a power supply, a gate of the first transistor is connected to a drain of the second transistor at a first node, a gate of the second transistor is connected to a drain of the first transistor at a second node. The circuit can provide a first level of a word line voltage to the memory cell by directly coupling the power supply configured at a first level to the memory cell through the second transistor and a third transistor, and provide a second level of the word line voltage by directly coupling the power supply configured at a second level to the memory cell through the second transistor and the third transistor.
    Type: Grant
    Filed: June 30, 2023
    Date of Patent: December 10, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Po-Hao Lee, Chia-Fu Lee, Yi-Chun Shih
  • Patent number: 12164320
    Abstract: A reference voltage generator includes an input terminal configured to receive an enable signal and an output terminal configured to provide an output signal. A voltage generator circuit is arranged to generate a first output voltage signal, and a pre-settling circuit is arranged to generate a second output voltage. The pre-settling circuit is configured to provide the second output voltage signal at the output terminal in response to the enable signal received at the input terminal, and following a first time period provide the first output voltage at the output terminal.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: December 10, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yen-An Chang, Yi-Chun Shih, Chieh-Pu Lo