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).
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Patent number: 11404113Abstract: 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: GrantFiled: September 28, 2020Date of Patent: August 2, 2022Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Yi-Hsin Nien, Wei-Chang Zhao, Chih-Yu Lin, Hidehiro Fujiwara, Yen-Huei Chen, Ru-Yu Wang
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Patent number: 11322198Abstract: 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: GrantFiled: December 14, 2020Date of Patent: May 3, 2022Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTDInventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Wei-Chang Zhao
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Publication number: 20210408011Abstract: 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 rType: ApplicationFiled: April 8, 2021Publication date: December 30, 2021Inventors: Hidehiro FUJIWARA, Chih-Yu LIN, Yen-Huei CHEN, Wei-Chang ZHAO, Yi-Hsin NIEN
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Publication number: 20210398589Abstract: 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: ApplicationFiled: September 28, 2020Publication date: December 23, 2021Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Yi-Hsin NIEN, Wei-Chang ZHAO, Chih-Yu LIN, Hidehiro FUJIWARA, Yen-Huei CHEN, Ru-Yu WANG
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Publication number: 20210398986Abstract: 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: ApplicationFiled: September 28, 2020Publication date: December 23, 2021Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Yi-Hsin NIEN, Chih-Yu LIN, Wei-Chang ZHAO, Hidehiro FUJIWARA
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Publication number: 20210350849Abstract: 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: ApplicationFiled: July 21, 2021Publication date: November 11, 2021Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Wei-Chang Zhao
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Publication number: 20210343317Abstract: 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: ApplicationFiled: July 12, 2021Publication date: November 4, 2021Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Wei-Chang Zhao
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Patent number: 11074966Abstract: 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: GrantFiled: October 21, 2019Date of Patent: July 27, 2021Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Wei-Chang Zhao
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Patent number: 11062739Abstract: 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: GrantFiled: June 27, 2019Date of Patent: July 13, 2021Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Wei-Chang Zhao
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Publication number: 20210098054Abstract: 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: ApplicationFiled: December 14, 2020Publication date: April 1, 2021Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Wei-Chang Zhao
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Publication number: 20210082074Abstract: 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: ApplicationFiled: May 11, 2018Publication date: March 18, 2021Applicant: 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
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Patent number: 10950298Abstract: 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: GrantFiled: January 17, 2020Date of Patent: March 16, 2021Inventors: Wei-Chang Zhao, Hidehiro Fujiwara, Chih-Yu Lin
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Patent number: 10943667Abstract: 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: GrantFiled: October 18, 2019Date of Patent: March 9, 2021Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Hiroki Noguchi, Wei-Chang Zhao
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Patent number: 10892008Abstract: 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: GrantFiled: June 7, 2019Date of Patent: January 12, 2021Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Wei-Chang Zhao
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Publication number: 20200411063Abstract: 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: ApplicationFiled: June 27, 2019Publication date: December 31, 2020Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Wei-Chang Zhao
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Publication number: 20200135288Abstract: 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: ApplicationFiled: October 18, 2019Publication date: April 30, 2020Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Hiroki Noguchi, Wei-Chang Zhao
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Publication number: 20200135268Abstract: 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: ApplicationFiled: October 21, 2019Publication date: April 30, 2020Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Wei-Chang Zhao
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Publication number: 20190385671Abstract: 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: ApplicationFiled: June 7, 2019Publication date: December 19, 2019Inventors: Hidehiro Fujiwara, Hsien-Yu Pan, Chih-Yu Lin, Yen-Huei Chen, Wei-Chang Zhao
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Patent number: 9754069Abstract: 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: GrantFiled: October 16, 2015Date of Patent: September 5, 2017Assignee: Synopsys, Inc.Inventors: Qiuyang Wu, Chang Zhao
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Patent number: 9728258Abstract: 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: GrantFiled: October 4, 2016Date of Patent: August 8, 2017Assignee: National Tsing Hua UniversityInventors: Meng-Fan Chang, Wei-Chang Zhao