Patents by Inventor Chang Zhao

Chang Zhao 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: 11404113
    Abstract: A memory device includes a first program line and a second program line. A first portion of the first program line is formed in a first conductive layer, and a second portion of the first program line is formed in a second conductive layer above the first conductive layer. A first portion of the second program line is formed in the first conductive layer. A second portion of the second program line is formed in the second conductive layer. A third portion of the second program line is formed in a third conductive layer above the second conductive layer. The first portion and the second portion of the first program line have sizes that are different from each other, and the first portion, the second portion and the third portion of the second program line have sizes that are different from each other.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: August 2, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yi-Hsin Nien, Wei-Chang Zhao, Chih-Yu Lin, Hidehiro Fujiwara, Yen-Huei Chen, Ru-Yu Wang
  • Patent number: 11322198
    Abstract: A memory macro system may be provided. The memory macro system may comprise a first segment, a second segment, a first WL, and a second WL. The first segment may comprise a first plurality of memory cells. The second segment may comprise a second plurality of memory cells. The first segment may be positioned over the second segment. The first WL may correspond to the first segment and the second WL may correspond to the second segment. The first WL and the second WL may be configured to be activated in one cycle.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: May 3, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD
    Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Wei-Chang Zhao
  • Publication number: 20210408011
    Abstract: A memory device including: active regions; gate electrodes which are substantially aligned relative to four corresponding track lines such that the memory device has a width of four contacted poly pitch (4 CPP) and are electrically coupled to the active regions; contact-to-transistor-component structures (MD structures) which are electrically coupled to the active regions, and are interspersed among corresponding ones of the gate electrodes; via-to-gate/MD (VGD) structures which are electrically coupled to the gate electrodes and the MD structures; conductive segments which are in a first layer of metallization (M_1st layer), and are electrically coupled to the VGD structures; buried contact-to-transistor-component structures (BVD structures) which are electrically coupled to the active regions; and buried conductive segments which are in a first buried layer of metallization (BM_1st layer), and are electrically coupled to the BVD structures, and correspondingly provide a first reference voltage or a second r
    Type: Application
    Filed: April 8, 2021
    Publication date: December 30, 2021
    Inventors: Hidehiro FUJIWARA, Chih-Yu LIN, Yen-Huei CHEN, Wei-Chang ZHAO, Yi-Hsin NIEN
  • Publication number: 20210398589
    Abstract: A memory device includes a first program line and a second program line. A first portion of the first program line is formed in a first conductive layer, and a second portion of the first program line is formed in a second conductive layer above the first conductive layer. A first portion of the second program line is formed in the first conductive layer. A second portion of the second program line is formed in the second conductive layer. A third portion of the second program line is formed in a third conductive layer above the second conductive layer. The first portion and the second portion of the first program line have sizes that are different from each other, and the first portion, the second portion and the third portion of the second program line have sizes that are different from each other.
    Type: Application
    Filed: September 28, 2020
    Publication date: December 23, 2021
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yi-Hsin NIEN, Wei-Chang ZHAO, Chih-Yu LIN, Hidehiro FUJIWARA, Yen-Huei CHEN, Ru-Yu WANG
  • Publication number: 20210398986
    Abstract: A memory device is disclosed. The memory device includes a first program line and a second program line. A first portion of the first program line is formed in a first conductive layer, and a second portion of the first program line is formed in a second conductive layer above the first conductive layer. A first portion of the second program line is formed in the first conductive layer, and a second portion of the second program line is formed in a third conductive layer above the second conductive layer. A width of at least one of the second portion of the first program line or the second portion of the second program line is different from a width of at least one of the first portion of the first program line or the first portion of the second program line. A method is also disclosed herein.
    Type: Application
    Filed: September 28, 2020
    Publication date: December 23, 2021
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yi-Hsin NIEN, Chih-Yu LIN, Wei-Chang ZHAO, Hidehiro FUJIWARA
  • Publication number: 20210350849
    Abstract: A memory cell includes a write port and a read port. The write port includes two cross-coupled inverters that form a storage unit. The cross-coupled inverters are connected between a first power source signal line and a second power source signal line. The write port also includes a first local interconnect line in an interconnect layer that is connected to the second power source signal line. The read port includes a transistor that is connected to the storage unit in the write port and to the second power source signal line, and a second local interconnect line in the interconnect layer that is connected to the second power source signal line. The second local interconnect line in the read port is separate from the first local interconnect line in the write port.
    Type: Application
    Filed: July 21, 2021
    Publication date: November 11, 2021
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Wei-Chang Zhao
  • Publication number: 20210343317
    Abstract: A semiconductor chip is provided. The semiconductor chip includes a SRAM cell, a logic cell, a signal line and a ground line. The SRAM cell includes a storage transmission gate, a read transmission gate and a latch circuit. The latch circuit is serially connected between the storage and read transmission gates, and includes a first inverter, a second inverter and a transmission gate connected to an output of the first inverter, an input of the second inverter and an output of the storage transmission gate. The logic cell disposed aside the SRAM cell is connected with the SRAM cell by first and second active structures. The signal and ground lines extend at opposite sides of the SRAM and logic cells, and are substantially parallel with the first and second active structures. The SRAM and logic cells are disposed between and electrically connected to the signal and ground lines.
    Type: Application
    Filed: July 12, 2021
    Publication date: November 4, 2021
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Wei-Chang Zhao
  • Patent number: 11074966
    Abstract: A memory cell includes a write port and a read port. The write port includes two cross-coupled inverters that form a storage unit. The cross-coupled inverters are connected between a first power source signal line and a second power source signal line. The write port also includes a first local interconnect line in an interconnect layer that is connected to the second power source signal line. The read port includes a transistor that is connected to the storage unit in the write port and to the second power source signal line, and a second local interconnect line in the interconnect layer that is connected to the second power source signal line. The second local interconnect line in the read port is separate from the first local interconnect line in the write port.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: July 27, 2021
    Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Wei-Chang Zhao
  • Patent number: 11062739
    Abstract: A semiconductor chip is provided. The semiconductor chip includes a memory cell and a logic cell disposed aside the memory cell, and includes signal and ground lines with the memory and logic cells located therebetween. The memory cell includes first and second active structures extending along a first direction, and includes a storage transmission gate line, first through third gate lines and a read transmission gate line extending along a second direction. The storage transmission gate line includes first and second line segments, which respectively extends across the active structures. The first through third gate lines continuously extend across the first and second active structures. The read transmission gate line includes third and fourth line segments, which respectively extend across the active structures. The first through third gate lines are located between the storage and read transmission gate lines.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: July 13, 2021
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Wei-Chang Zhao
  • Publication number: 20210098054
    Abstract: A memory macro system may be provided. The memory macro system may comprise a first segment, a second segment, a first WL, and a second WL. The first segment may comprise a first plurality of memory cells. The second segment may comprise a second plurality of memory cells. The first segment may be positioned over the second segment. The first WL may correspond to the first segment and the second WL may correspond to the second segment. The first WL and the second WL may be configured to be activated in one cycle.
    Type: Application
    Filed: December 14, 2020
    Publication date: April 1, 2021
    Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Wei-Chang Zhao
  • Publication number: 20210082074
    Abstract: A processor device has a CPU cooperating with an input device and an output device, under control of stored instructions, and is arranged to receive service requests at the input device, assign service requests received in successive time periods to respective batches of requests; access stored service provider data to identify available service providers from among a pool of service providers; after completing the assignment of service requests to a batch, perform a matching process to endeavour to match each service request of the batch of requests to a service provider; and for each service provider to whom a match is made, output a notification of the respective potential match from the output device.
    Type: Application
    Filed: May 11, 2018
    Publication date: March 18, 2021
    Applicant: GRABTAXI HOLDINGS PTE. LTD.
    Inventors: Kong-Wei LYE, Yang CAO, Swara DESAI, Chen LIANG, Xiaojia MU, Yuliang Shen, Sien Yi TAN, Muchen TANG, Renrong WENG, Chang ZHAO
  • Patent number: 10950298
    Abstract: A static random access memory (SRAM) device includes a first memory array including a plurality of memory cells, each memory cell including a first pass gate transistor with a first threshold voltage connected to a bit line. The SRAM device further includes a second memory array including a plurality of memory cells, each memory cell including a second pass gate transistor with a second threshold voltage connected to the bit line. The SRAM device further includes a peripheral input-output circuit connected to the bit line. The SRAM device still further includes a column of write current tracking cells, each tracking cell disposed within a row of the first memory array and the second memory array, wherein the first memory array is between the peripheral input-output circuit and the second memory array.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: March 16, 2021
    Inventors: Wei-Chang Zhao, Hidehiro Fujiwara, Chih-Yu Lin
  • Patent number: 10943667
    Abstract: A memory device is provided. The memory device includes a shift register array having a plurality of shift registers arranged in a matrix of a plurality of rows and a plurality of columns. Each of the plurality of rows comprises a first plurality of shift registers and each of the plurality of columns comprises a second plurality of shift registers. Each of the plurality of rows are associated with a read word line and a write word lines. Each of the plurality of rows are associated with a data input line and a data output line. Each of the plurality of shift arrays comprises a static random access memory.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: March 9, 2021
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Hiroki Noguchi, Wei-Chang Zhao
  • Patent number: 10892008
    Abstract: A memory macro system may be provided. The memory macro system may comprise a first segment, a second segment, a first WL, and a second WL. The first segment may comprise a first plurality of memory cells. The second segment may comprise a second plurality of memory cells. The first segment may be positioned over the second segment. The first WL may correspond to the first segment and the second WL may correspond to the second segment. The first WL and the second WL may be configured to be activated in one cycle.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: January 12, 2021
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Wei-Chang Zhao
  • Publication number: 20200411063
    Abstract: A semiconductor chip is provided. The semiconductor chip includes a memory cell and a logic cell disposed aside the memory cell, and includes signal and ground lines with the memory and logic cells located therebetween. The memory cell includes first and second active structures extending along a first direction, and includes a storage transmission gate line, first through third gate lines and a read transmission gate line extending along a second direction. The storage transmission gate line includes first and second line segments, which respectively extends across the active structures. The first through third gate lines continuously extend across the first and second active structures. The read transmission gate line includes third and fourth line segments, which respectively extend across the active structures. The first through third gate lines are located between the storage and read transmission gate lines.
    Type: Application
    Filed: June 27, 2019
    Publication date: December 31, 2020
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Wei-Chang Zhao
  • Publication number: 20200135288
    Abstract: A memory device is provided. The memory device includes a shift register array having a plurality of shift registers arranged in a matrix of a plurality of rows and a plurality of columns. Each of the plurality of rows comprises a first plurality of shift registers and each of the plurality of columns comprises a second plurality of shift registers. Each of the plurality of rows are associated with a read word line and a write word lines. Each of the plurality of rows are associated with a data input line and a data output line. Each of the plurality of shift arrays comprises a static random access memory.
    Type: Application
    Filed: October 18, 2019
    Publication date: April 30, 2020
    Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Hiroki Noguchi, Wei-Chang Zhao
  • Publication number: 20200135268
    Abstract: A memory cell includes a write port and a read port. The write port includes two cross-coupled inverters that form a storage unit. The cross-coupled inverters are connected between a first power source signal line and a second power source signal line. The write port also includes a first local interconnect line in an interconnect layer that is connected to the second power source signal line. The read port includes a transistor that is connected to the storage unit in the write port and to the second power source signal line, and a second local interconnect line in the interconnect layer that is connected to the second power source signal line. The second local interconnect line in the read port is separate from the first local interconnect line in the write port.
    Type: Application
    Filed: October 21, 2019
    Publication date: April 30, 2020
    Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Wei-Chang Zhao
  • Publication number: 20190385671
    Abstract: A memory macro system may be provided. The memory macro system may comprise a first segment, a second segment, a first WL, and a second WL. The first segment may comprise a first plurality of memory cells. The second segment may comprise a second plurality of memory cells. The first segment may be positioned over the second segment. The first WL may correspond to the first segment and the second WL may correspond to the second segment. The first WL and the second WL may be configured to be activated in one cycle.
    Type: Application
    Filed: June 7, 2019
    Publication date: December 19, 2019
    Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Wei-Chang Zhao
  • Patent number: 9754069
    Abstract: Embodiments perform static timing analysis using a digital representation of a circuit. The digital representation of the circuit includes multiple instances of a cell in a hierarchical cell block circuit. Timing context information is determined for each instance of the cell included in the circuit. A merged timing context information is determined to bound and cover each of the plurality of instances of the cell. A slack estimate is determined for a pair of ports for each instance of the cell. The instance with the smallest slack estimate is identified. A slack estimate for a pair of ports of the cell is determined based on the merged timing information of the cell. A timing credit is determined for the pair of ports based on the slack of the instance with the smallest slack and the slack estimate from the bound information for the pair of ports.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: September 5, 2017
    Assignee: Synopsys, Inc.
    Inventors: Qiuyang Wu, Chang Zhao
  • Patent number: 9728258
    Abstract: A ternary content addressable memory includes at least one first memory cell, at least one second memory cell and at least one switch set. The first memory cell receives a first search signal, determines whether to send first stored data to a common end or not according to the first search signal. The second memory cell receives a second search signal, determines whether to send second stored data to the common end or not according to the second search signal. The switch set adjusts a resistance of a path between the match line and the reference ground according to a voltage on the common end and a third search signal.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: August 8, 2017
    Assignee: National Tsing Hua University
    Inventors: Meng-Fan Chang, Wei-Chang Zhao