Flip-flop (electrical) Patents (Class 365/154)
  • Patent number: 11915743
    Abstract: A latch formed from a memory cell includes a clock input terminal configured to receive a clock signal, complementary first and second data terminals, and a latch circuit. The latch circuit has first and second inverters. The first inverter has an input terminal coupled to the first data terminal, and the second inverter has an input terminal coupled to the second data terminal. A first pass gate transistor is coupled between an output terminal of the second inverter and the first data terminal. A second pass gate transistor is coupled between an output terminal of the first inverter and the second data terminal. The first and second pass gate transistors each have a gate terminal coupled to the clock input terminal. The input terminal of the first inverter is not directly connected to the output terminal of the second inverter, and the input terminal of the second inverter is not directly connected to the output terminal of the first inverter.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: February 27, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Hua-Hsin Yu, Cheng Hung Lee, Hung-Jen Liao, Hau-Tai Shieh
  • Patent number: 11910585
    Abstract: Well pick-up (WPU) regions are disclosed herein for improving performance of memory arrays, such as static random access memory arrays. An exemplary integrated circuit (IC) device includes a circuit region, a WPU region, a first well extending lengthwise along a first direction through the circuit region and into the WPU region, a second well extending lengthwise along the first direction through the circuit region and into the WPU region, and a third well physically connecting a portion of the first well in the WPU region and a portion of the second well in the WPU region.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: February 20, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chih-Chuan Yang, Chang-Ta Yang, Ping-Wei Wang
  • Patent number: 11894049
    Abstract: A memory cell comprises a pair of cross-coupled inverters as a storage element, a first inverter in the pair of cross-coupled inverters having a first output at a first node, a second inverter in the pair of cross-coupled inverters having a second output at a second node. A first complementary transmission gate includes a first nMOS pass gate and a first pMOS pass gate, connected between the first node and a first bit line. A second complementary transmission gate includes a second nMOS pass gate and a second pMOS pass gate, connected between the second node and a second bit line. A first word line is connected to gate conductors of the first and second nMOS pass gates in the first and second complementary transmission gates. A second word line is connected to gate conductors of the first and second pMOS pass gates in the first and second transmission gates.
    Type: Grant
    Filed: December 2, 2021
    Date of Patent: February 6, 2024
    Assignee: Synopsys, Inc.
    Inventors: Plamen Asenov, Victor Moroz
  • Patent number: 11894095
    Abstract: A semiconductor memory device includes a plurality of data latch circuits that are used for input and output of data between a sense amplifier circuit and an input/output circuit, and a data bus that is connected to the plurality of data latch circuits. Each of the data latch circuits includes an inverter circuit that temporarily stores data input and output between the sense amplifier circuit and the input/output circuit, and at least three MOS transistors between the inverter circuit and the data bus. The at least three MOS transistors may be multiple N-channel type MOS transistors and at least one P-channel type MOS transistor connected in parallel between the inverter circuit and the data bus, or at least one N-channel type MOS transistor and multiple P-channel type MOS transistors connected in parallel between the inverter circuit and the data bus.
    Type: Grant
    Filed: March 2, 2022
    Date of Patent: February 6, 2024
    Assignee: Kioxia Corporation
    Inventors: Yuji Satoh, Hiromitsu Komai
  • Patent number: 11889673
    Abstract: An integrated circuit includes: a dual port Static Random Access Memory (SRAM) cell including a plurality of transistors; a bit line pair connected to the dual port SRAM cell, the bit line pair including a first bit line and a second bit line spaced apart from each other in a first direction and extending in a second direction perpendicular to the first direction; a power line group including a plurality of power lines spaced apart from each other in the first direction, spaced apart from the bit line pair placed in the first direction, and extending in the second direction, the power line group being configured to apply a voltage to the dual-port SRAM cell; and a first word line provided between the first bit line and the second bit line and connected to the dual port SRAM cell.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: January 30, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sangshin Han, Taehyung Kim
  • Patent number: 11830544
    Abstract: A semiconductor memory device includes an array of memory cells arranged in a plurality of rows and columns, with each memory cell including a plurality of bit cell transistors. The semiconductor memory device further includes a plurality of write assist circuits, including one or more write assist circuits within each column of the array of memory cells, each write assist circuit configured to provide a core voltage to memory cells within the same column and to reduce the core voltage during a write operation. The array of memory cells and the plurality of write assist circuits have a common semiconductor layout.
    Type: Grant
    Filed: July 15, 2022
    Date of Patent: November 28, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Sahil Preet Singh, Yen-Huei Chen, Hung-Jen Liao
  • Patent number: 11823765
    Abstract: The present application provides a storage system including a data port. The data port includes a data output unit. The data output unit includes: a pull-up unit having a control terminal, a first terminal and a second terminal, a first input signal being inputted to the control terminal, the first terminal being electrically connected to a power supply, the second terminal being connected to an output terminal of the data output unit, and the pull-up unit being a first NMOS transistor; and a pull-down unit having a control terminal, a first terminal and a second terminal, a second input signal being inputted to the control terminal, the first terminal being electrically connected to a ground terminal, and the second terminal being connected to the output terminal of the data output unit.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: November 21, 2023
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: Shuliang Ning
  • Patent number: 11776949
    Abstract: An IC device includes a first active area extending away from a first endpoint in a first direction, a second active area extending away from a second endpoint in the first direction, a third active area positioned between the first and second active areas, and a gate structure perpendicular to the first through third active areas. The gate structure overlies each of the first and second endpoints and the third active area, and the third active area extends away from the gate structure in a second direction opposite the first direction.
    Type: Grant
    Filed: May 9, 2022
    Date of Patent: October 3, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chien-Ying Chen, Lee-Chung Lu, Li-Chun Tien, Ta-Pen Guo
  • Patent number: 11776621
    Abstract: A memory device and an operation method thereof is disclosed. The memory device includes a SRAM cell and a power supply assist circuit connected to the SRAM cell. The power supply assist circuit includes a first transistor, a second transistor, a third transistor, a fourth transistor, and a fifth transistor. The first transistor receives a power supply voltage. The control terminals of the first transistor and the second transistor are connected to each other. The third transistor switches, in response to a first control signal, to connect the control terminal and the connect terminal of the second transistor. The fourth transistor switches, in response to a second control signal, to drive the control terminal of the second transistor to a system ground voltage. The fifth transistor switches, in response to a third control signal, to drive the control terminal of the first transistor to the power supply voltage.
    Type: Grant
    Filed: October 22, 2021
    Date of Patent: October 3, 2023
    Assignee: NATIONAL CHUNG CHENG UNIVERSITY
    Inventors: Jinn Shyan Wang, Chien Tung Liu, Chih Jung Liu
  • Patent number: 11778802
    Abstract: A device is disclosed that includes a fin structure disposed below a first metal layer, extending along a column direction, and corresponding to at least one transistor of a memory bit cell, a word line disposed in the first metal layer and extending along a row direction, a first metal island disposed in the first metal layer separated from the word line, and a first connection metal line disposed in a second metal layer above the first metal layer, extending along the column direction, and configured to couple a power supply through the first metal island to the fin structure. In a layout view, the first connection metal line is separated from the fin structure, and the fin structure crosses over the word line and the first metal island. A method is also disclosed herein.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: October 3, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Hidehiro Fujiwara, Wei-Min Chan, Chih-Yu Lin, Yen-Huei Chen, Hung-Jen Liao
  • Patent number: 11778813
    Abstract: Semiconductor devices including active regions and gate electrodes are disclosed. An example semiconductor device according to the disclosure includes a gate electrode extending in a first direction, and first and second active regions extending in a second direction. The gate electrode has a side extending in the first direction. The first active region includes: a first center portion having a first width in the first direction; and a first end portion disposed at a first end of the first center portion, and having a second width in the first direction that is greater than the first width. The second active region includes: a second center portion having a third width in the first direction. The gate electrode overlaps along the side with portions of the first end portion and the second center portion.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: October 3, 2023
    Assignee: Micron Technology, Inc.
    Inventor: Masahiro Yokomichi
  • Patent number: 11778803
    Abstract: A system and method for efficiently creating layout for memory bit cells are described. In various implementations, a memory bit cell uses Cross field effect transistors (FETs) that include vertically stacked gate all around (GAA) transistors with conducting channels oriented in an orthogonal direction between them. The channels of the vertically stacked transistors use opposite doping polarities. The memory bit cell includes one of a read bit line and a write word line routed in no other metal layer other than a local interconnect layer. In addition, a six transistor (6T) random access data storage of the given memory bit cell consumes a planar area above a silicon substrate of four transistors.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: October 3, 2023
    Assignee: Advanced Micro Devices, Inc.
    Inventor: Richard T. Schultz
  • Patent number: 11765878
    Abstract: Devices and methods are described herein that obviate the need for a read assist circuit. In one example, a semiconductor device includes a source region and a drain region formed above a substrate. A buried insulator (BI) layer is formed beneath either the source region or the drain region. A first nano-sheet is formed (i) horizontally between the source region and the drain region and (ii) vertically above the BI layer. The BI layer reduces current flow through the first nano-sheet.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: September 19, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Kam-Tou Sio, Yi-Hsun Chiu
  • Patent number: 11728118
    Abstract: Fuse programming circuits, devices and methods. In some embodiments, a fuse circuit can include a fuse pad configured to receive a voltage, a fuse having a first end coupled to the fuse pad and a second end coupled to a switching element configured to enable a current to pass from the fuse pad to a ground potential.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: August 15, 2023
    Assignee: Skyworks Solutions, Inc.
    Inventor: Bo Zhou
  • Patent number: 11727972
    Abstract: A memory device is disclosed. The memory device includes word lines, a tracking bit line and a word line driver. The word lines are configured to transmit word line signals to memory cells. The tracking bit line is coupled to a first plurality of tracking cells that are arranged in rows. The word line driver is coupled to the word lines and a control circuit that is coupled through the tracking bit line to the word lines. The word line driver is configured to control a falling edge of each of the word line signals, by receiving each corresponding tracking bit line signal of tracking bit line signals transmitted from the tracking bit line, based on a resistance of a length of the tracking bit line. The length is substantially distanced from each corresponding row of the rows to the control circuit. A method is also disclosed herein.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: August 15, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Tsung-Hsien Huang, Wei-Jer Hsieh, Yu-Hao Hsu
  • Patent number: 11715505
    Abstract: A memory circuit includes a NAND logic gate configured to receive a first bit line signal and a second bit line signal, and to generate a first signal. The memory circuit further includes a first N-type transistor coupled to the NAND logic gate, and configured to receive a first pre-charge signal. The memory circuit further includes a second N-type transistor coupled to the first N-type transistor and a reference voltage supply, and configured to receive a first clock signal. The memory circuit further includes a first latch coupled to the NAND logic gate, and configured to latch the first signal in response to at least the first clock signal or the first pre-charge signal.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: August 1, 2023
    Assignees: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., TSMC CHINA COMPANY, LIMITED
    Inventors: Yi-Tzu Chen, Ching-Wei Wu, Hau-Tai Shieh, Hung-Jen Liao, Fu-An Wu, He-Zhou Wan, XiuLi Yang
  • Patent number: 11682450
    Abstract: A read-port of a Static Random Access Memory (SRAM) cell includes a read-port pass-gate (R_PG) transistor and a read-port pull-down (R_PD) transistor. A write-port of the SRAM cell port includes at least a write-port pass-gate (W_PG) transistor, a write-port pull-down (W_PD) transistor, and a write-port pull-up (W_PU) transistor. The R_PG transistor, the R_PD transistor, the W_PG transistor, the W_PD transistor, and the W_PU transistor are gate-all-around (GAA) transistors. The R_PG transistor has a first channel width. The R_PD transistor has a second channel width. The W_PG transistor has a third channel width. The W_PD transistor has a fourth channel width. The W_PU transistor has a fifth channel width. The first channel width and the fourth channel width are each smaller than the second channel width. The third channel width is greater than the fifth channel width.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: June 20, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventor: Jhon Jhy Liaw
  • Patent number: 11676660
    Abstract: A static random access memory (SRAM) includes a first memory cell array, a second memory cell array, a first data line coupled to the first memory cell array and the second memory cell array, a second data line coupled to the first memory cell array and the second memory cell array, a primary driver circuit coupled to at least the first data line, and a supplementary driver circuit coupled to at least the first data line. The supplementary driver circuit is configured to receive a supplementary driver circuit enable signal, sense a voltage of a first signal of the first data line, and pull the voltage of the first signal to a first voltage level during a write operation of a first memory cell in the first memory cell array in response to at least a first NOR output signal.
    Type: Grant
    Filed: December 2, 2021
    Date of Patent: June 13, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chih-Yu Lin, Wei-Cheng Wu, Kao-Cheng Lin, Yen-Huei Chen
  • Patent number: 11678474
    Abstract: A semiconductor device includes first, second, third, fourth, and fifth active regions each extending lengthwise along a first direction, wherein the first, second, third, and fourth active regions comprise channel regions and source/drain (S/D) regions of first, second, third, and fourth transistors respectively, and the fifth active region comprises channel regions and S/D regions of fifth and sixth transistors; and first, second, third, fourth, fifth, and sixth gates each extending lengthwise along a second direction perpendicular to the first direction, wherein the first through sixth gates are configured to engage the channel regions of the first through sixth transistors respectively, wherein the first, second, and fifth gates are electrically connected, and wherein one of the S/D regions of the first transistor, one of the S/D regions of the second transistor, the third gate, and the fourth gate are electrically connected.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: June 13, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Kuo-Hsiu Hsu, Yu-Kuan Lin, Feng-Ming Chang, Lien Jung Hung, Ping-Wei Wang
  • Patent number: 11664081
    Abstract: Systems, devices, and methods are described herein for a programmable memory array. A programmable memory system includes an array of programmable memory bit cells. A memory bit cell of the array includes a first transistor of a first type controlled by a bit line, a second transistor of a second type responsive to a first word line and a second word line via a logic gate, and a third transistor of the second type responsive to the word line. The first word line is positioned substantially perpendicular to the bit line, and the second word line is positioned substantially parallel to the bit line. The first word line is activated via an X portion of an address. While the second word line is activated via a Y portion of the address.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: May 30, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Meng-Sheng Chang, Yoshitaka Yamauchi, Perng-Fei Yuh
  • Patent number: 11657869
    Abstract: One aspect of this description relates to a memory cell. In some embodiments, the memory cell includes a first gate structure, a second gate structure, a third gate structure, a fourth gate structure, and a fifth gate structure that each extend along a first lateral direction, a first active structure extending along a second lateral direction and overlaid by respective first portions of the first to fourth gate structures, a second active structure extending along the second lateral direction and overlaid by respective second portions of the first to fourth gate structures, and a third active structure extending along the second lateral direction and overlaid by respective third portions of the third and fifth gate structures. In some embodiments, the first and second gate structures are aligned with each other, with the fourth and fifth gate structures aligned with a first segment and a second segment of the third gate structure, respectively.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: May 23, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LIMITED
    Inventors: Chih-Chuan Yang, Feng-Ming Chang, Kuo-Hsiu Hsu, Ping-Wei Wang
  • Patent number: 11646347
    Abstract: Disclosed herein is an apparatus that includes: a first diffusion region having a rectangular shape and including first and second source/drain regions arranged in the first direction; a second diffusion region having a rectangular shape and including third to fifth source/drain regions arranged in the first direction; a first gate electrode extending in a second direction, and provided between the first and second source/drain regions and between the third and fourth source/drain regions; and a second gate electrode extending in the second direction, and provided between the fourth and fifth source/drain regions. The first and third source/drain regions are brought into the same potential as each other, and the second and fourth source/drain regions are brought into the same potential as each other.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: May 9, 2023
    Assignee: Micron Technology, Inc.
    Inventor: Toshinao Ishii
  • Patent number: 11625198
    Abstract: A mode register data processing module is configured to write, in response to a mode register write enable command, first preset data into a reserved mode register in a mode register; an external data transmission module is configured to write, in response to an enable signal, initial data into a memory array via an internal data transmission module according to the first preset data and a preset encoding rule, and is further configured to read target data from the memory array in response to a read command; and a comparison module is configured to determine whether there is an abnormal data transmission based on a comparison result of the first preset data and the target data, and store the comparison result to a preset position in the mode register.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: April 11, 2023
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: Enpeng Gao
  • Patent number: 11616057
    Abstract: IC device including back-end-of-line (BEOL) transistors with crystalline channel material. A BEOL crystalline seed may be formed over a dielectric layer that has been planarized over a front-end-of-line (FEOL) transistor level that employs a monocrystalline substrate semiconductor. The BEOL crystalline seed may be epitaxial to the substrate semiconductor, or may have crystallinity independent of that of the substrate semiconductor. The BEOL crystalline seed may comprise a first material having a higher melt temperature than a melt material formed over the seed and over the dielectric layer. Through rapid melt growth, the melt material may be heated to a temperature sufficient to transition from an as-deposited state to a more crystalline state that is derived from, and therefore associated with, the BEOL crystalline seed. A BEOL transistor may then be fabricated from the crystallized material.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: March 28, 2023
    Assignee: Intel Corporation
    Inventors: Prashant Majhi, Abhishek Sharma, Brian Doyle, Ravi Pillarisetty, Willy Rachmady
  • Patent number: 11605430
    Abstract: The nonvolatile memory includes a plurality of nonvolatile memory cells configured to store multiple data states; a word line connected to a control gate of at least one of the plurality of non-volatile memory cells; a control gate line to supply a control gate signal; a word line switch connected between the word line and the control gate line to control the potential applied to the word line from the control gate line; and a memory controller circuit. The memory controller circuit is configured to control a word line potential on the word line and a control gate potential on the control gate line and to control a state of the control gate. The memory controller circuit, when the nonvolatile memory transitions to a not-on state, is further configured to turn off the word line switch and to charge the control gate line to a charged potential.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: March 14, 2023
    Assignee: SanDisk Technologies LLC
    Inventors: Abhijith Prakash, Anubhav Khandelwal
  • Patent number: 11600623
    Abstract: Well pick-up regions are disclosed herein for improving performance of memory arrays, such as static random access memory arrays. An exemplary integrated circuit (IC) device includes a circuit region; a first well pick-up (WPU) region; a first well oriented lengthwise along a first direction in the circuit region and extending into the first WPU region, the first well having a first conductivity type; and a second well oriented lengthwise along the first direction in the circuit region and extending into the first WPU region, the second well having a second conductivity type different from the first conductivity type, wherein the first well has a first portion in the circuit region and a second portion in the first WPU region, and the second portion of the first well has a width larger than the first portion of the first well along a second direction perpendicular to the first direction.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: March 7, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chih-Chuan Yang, Chang-Ta Yang, Ping-Wei Wang
  • Patent number: 11594285
    Abstract: According to one embodiment, a semiconductor memory device includes first and second memory cells; a first word line connected to the first and second memory cells; a first bit line connected to the first memory cell; a second bit line connected to the second memory cell; a first sense amplifier connected to the first bit line; a second sense amplifier connected to the second bit line; a voltage generation circuit; and a first row decoder which supplies a voltage to the first word line.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: February 28, 2023
    Assignee: Kioxia Corporation
    Inventors: Takeshi Hioka, Tsukasa Kobayashi, Koji Kato, Yuki Shimizu, Hiroshi Maejima
  • Patent number: 11579797
    Abstract: A method includes determining a first memory access count threshold for a first word line of a block of memory cells and determining a second memory access count threshold for a second word line of the block of memory cells. The second memory access count threshold can be greater than the first memory access count threshold. The method can further include incrementing a memory block access count corresponding to the block of memory cells that includes the first word line and the second word line in response to receiving a memory access command and refreshing the first word line when the memory block access count corresponding to the block of memory cells is equal to the first memory access count threshold.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: February 14, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Tao Liu, Ting Luo, Jianmin Huang
  • Patent number: 11545987
    Abstract: In an embodiment, a method includes initializing an input clock rotating register by sending a reset signal synchronized to an input clock signal and initializing an output clock rotating register by sending the reset signal synchronized to an output clock signal. The method further providing a data input synchronized to the output clock to a plurality of mux-flops. The output clock rotating register activates one of the plurality of mux-flops to receive the data input. The method further includes forwarding the data input via the one of the plurality of mux-flops to a multiplexer. The multiplexer has a selection input of the input clock rotating register. The method further includes selecting the data input as the output of the multiplexer to be a data output signal, such that the data output is synchronized with the input clock.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: January 3, 2023
    Assignee: Marvell Asia Pte, Ltd.
    Inventors: Nitin Mohan, Vasudevan Kandadi, Thucydides Xanthopoulos
  • Patent number: 11544065
    Abstract: A processor includes a front-end with an instruction set that operates at a first bit width and a floating point unit coupled to receive the instruction set in the processor that operates at the first bit width. The floating point unit operates at a second bit width and, based upon a bit width assessment of the instruction set provided to the floating point unit, the floating point unit employs a shadow-latch configured floating point register file to perform bit width reconfiguration. The shadow-latch configured floating point register file includes a plurality of regular latches and a plurality of shadow latches for storing data that is to be either read from or written to the shadow latches. The bit width reconfiguration enables the floating point unit that operates at the second bit width to operate on the instruction set received at the first bit width.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: January 3, 2023
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Arun A. Nair, Todd Baumgartner, Michael Estlick, Erik Swanson
  • Patent number: 11538519
    Abstract: Methods and devices for adjusting a read threshold voltage of bitlines are provided. One such method includes adjusting a read threshold voltage of bitlines coupled to memory points of a memory circuit. The read threshold voltage is initially set to a first value. First data are written in the memory points and second data are read from the memory points. The second data are compared to the first data, and the threshold voltage is decreased by a second value in response to a comparison error of one of the second data with the corresponding first data.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: December 27, 2022
    Assignee: STMICROELECTRONICS SA
    Inventor: Faress Tissafi Drissi
  • Patent number: 11508442
    Abstract: The present invention relates to a flash memory device that uses strap cells in a memory array of non-volatile memory cells as source line pull down circuits. In one embodiment, the strap cells are erase gate strap cells. In another embodiment, the strap cells are source line strap cells. In another embodiment, the strap cells are control gate strap cells. In another embodiment, the strap cells are word line strap cells.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: November 22, 2022
    Assignee: SILICON STORAGE TECHNOLOGY, INC.
    Inventors: Leo Xing, Chunming Wang, Xian Liu, Nhan Do, Guangming Lin, Yaohua Zhu
  • Patent number: 11482990
    Abstract: A low power sequential circuit (e.g., latch) uses a non-linear polar capacitor to retain charge with fewer transistors than traditional CMOS sequential circuits. In one example, a sequential circuit includes pass-gates and inverters, but without a feedback mechanism or memory element. In another example, a sequential uses load capacitors (e.g., capacitors coupled to a storage node and a reference supply). The load capacitors are implemented using ferroelectric material, paraelectric material, or linear dielectric. In one example, a sequential uses minority, majority, or threshold gates with ferroelectric or paraelectric capacitors. In one example, a sequential circuit uses minority, majority, or threshold gates configured as NAND gates.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: October 25, 2022
    Assignee: Kepler Computing Inc.
    Inventors: Amrita Mathuriya, Ikenna Odinaka, Rajeev Kumar Dokania, Rafael Rios, Sasikanth Manipatruni
  • Patent number: 11475941
    Abstract: The present disclosure relates to a structure including a latch circuit, a first non-volatile field effect transistor (FET) connecting to a first side of the latch circuit and a bit line, and a second non-volatile field effect transistor (FET) connecting to a second side of the latch circuit and a complementary bit line.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: October 18, 2022
    Assignee: GLOBALFOUNDRIES U.S. Inc.
    Inventors: Akhilesh R. Jaiswal, Bipul C. Paul, Steven R. Soss
  • Patent number: 11450369
    Abstract: A semiconductor circuit according to the present disclosure includes a first circuit that generates an inverted voltage of a voltage at a first node, and applies the inverted voltage to a second nodes, a second circuit that generates an inverted voltage of a voltage at the second node, and applies the inverted voltage to the first node, a first memory element that has a first terminal, a second terminal, and a third terminal, and stores information by setting a resistance state between the second terminal and the third terminal to a first resistance state or a second resistance state in accordance with a direction of a first current flowing between the first terminal and the second terminal, a first transistor that couples the first node to the third terminal of the first memory element and a second transistor that is coupled to a first coupling node.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: September 20, 2022
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventor: Yasuo Kanda
  • Patent number: 11430505
    Abstract: The present disclosure relates to in-memory computing using a static random access memory (SRAM). In particular, the present disclosure relates to a structure including a memory configured to store a first word and a second word, the memory further includes a configurable data path circuit, and the configured data path circuit is configured to perform an arithmetic logical operation based on the first word and the second word in parallel.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: August 30, 2022
    Assignee: Marvell Asia Pte, Ltd.
    Inventors: Akhilesh Patil, Eric D. Hunt-Schroeder
  • Patent number: 11410721
    Abstract: A semiconductor memory device of an embodiment includes: a first inverter including a first P-channel and first N-channel transistors; a second inverter including a second P-channel and second N-channel transistors and being cross-connected to the first inverter; a third P-channel transistor; a third N-channel transistor; a first wiring; a second wiring; a third wiring; a fourth wiring; a fifth wiring; a sixth wiring; and a controller that drives the first to sixth wirings. When writing second-level data that is at a higher potential level than first-level data into the drain of the second P-channel transistor and the drain of the second N-channel transistor, the controller puts one of the fifth wiring and the sixth wiring into a floating state.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: August 9, 2022
    Assignee: KIOXIA CORPORATION
    Inventor: Atsushi Kawasumi
  • Patent number: 11398274
    Abstract: A pseudo-triple-port memory is provided that includes a plurality of pseudo-triple-port bitcells, each pseudo-triple-port first bitcell having a first read port including a first word line coupled to a first bit line through a first access transistor, a second read port including a second word line coupled to a second bit line through a second access transistor, and a write port including both the word lines, both the bit lines, and the pair of access transistors.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: July 26, 2022
    Assignee: QUALCOMM INCORPORATED
    Inventors: Arun Babu Pallerla, Changho Jung, Sung Son
  • Patent number: 11398273
    Abstract: A memory includes an array with rows and columns of memory cells. The rows include a first row and a second row, which may be adjacent. The memory also includes a plurality of logic gates in the array. Each logic gate of the plurality of logic gates includes a first input coupled to a respective memory cell in the first row, a second input coupled to a respective memory cell in the second row, and an output. The first and second inputs may be connected to internal nodes within the respective memory cells without intervening transistors. The memory further includes a plurality of sense lines in the array. The output of each logic gate of the plurality of logic gates is coupled to a sense line of the plurality of sense lines.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: July 26, 2022
    Inventor: Bindiganavale S. Nataraj
  • Patent number: 11393928
    Abstract: Systems, apparatuses and methods related to access devices formed with conductive contacts are described. An example apparatus may include an access device that includes a field-effect transistor (FET). A vertical pillar may be formed to include a channel of the FET, with a portion of the vertical pillar formed between at least two gates of the FET (i.e., a multi-gate Fin-FET). A conductive contact may be coupled to a body region of the vertical pillar.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: July 19, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Haitao Liu, Yunfei Gao, Kamal M. Karda, Deepak Chandra Pandey, Sanh D. Tang, Litao Yang
  • Patent number: 11388014
    Abstract: An integrated circuit is fabricated using a semiconductor fabrication process. One or more uncontrollable random physical processes in the semiconductor fabrication process can cause small differences between the integrated circuit and other similarly designed integrated circuit. These small differences can cause transistors of the integrated circuit to have different threshold voltages. The integrated circuit can use these different threshold voltages to quantify its physical uniqueness to differentiate itself from other integrated circuits similarly designed and fabricated by the semiconductor fabrication process.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: July 12, 2022
    Inventor: Shih-Lien Linus Lu
  • Patent number: 11379298
    Abstract: A circuit includes: a single-port memory interface which includes a sole address port configured to receive a read/write (RW) address, and a multi-port memory which has multiple address ports coupled to the sole address port of the single-port memory interface, and which is configured to store a data unit and parity bits, some of the parity bits being based on the corresponding RW address; a first decoding circuit configured to generate a decoded write address from the RW address and the parity bits; and an error detecting circuit configured to determine if an address error exists based on a comparison of the decoded write address to the read address.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: July 5, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Saman M. I. Adham, Ramin Shariat-Yazdi, Shih-Lien Linus Lu
  • Patent number: 11361806
    Abstract: Methods, systems, techniques, and devices for operating a ferroelectric memory cell or cells are described. A first ferroelectric memory cell may be used to charge a second ferroelectric memory cell by transferring charge from a plate of first ferroelectric memory cell to a plate of the second ferroelectric memory cell. In some examples, prior to the transfer of charge, the first ferroelectric memory cell may be selected for a first operation in which the first ferroelectric memory cell transitions from a charged state to a discharged state and the second ferroelectric memory cell may be selected for a second operation during which the second ferroelectric memory cell transitions from a discharged state to a charged state. The discharging of the first ferroelectric memory cell may be used to assist in charging the second ferroelectric memory cell.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: June 14, 2022
    Assignee: Micron Technology, Inc.
    Inventor: Eric S. Carman
  • Patent number: 11355167
    Abstract: In some embodiments, an in-memory-computing SRAM macro based on capacitive-coupling computing (C3) (which is referred to herein as “C3SRAM”) is provided. In some embodiments, a C3SRAM macro can support array-level fully parallel computation, multi-bit outputs, and configurable multi-bit inputs. The macro can include circuits embedded in bitcells and peripherals to perform hardware acceleration for neural networks with binarized weights and activations in some embodiments. In some embodiments, the macro utilizes analog-mixed-signal capacitive-coupling computing to evaluate the main computations of binary neural networks, binary-multiply-and-accumulate operations. Without needing to access the stored weights by individual row, the macro can assert all of its rows simultaneously and form an analog voltage at the read bitline node through capacitive voltage division, in some embodiments.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: June 7, 2022
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Mingoo Seok, Zhewei Jiang, Jae-sun Seo, Shihui Yin
  • Patent number: 11348929
    Abstract: A memory device includes a substrate, a first gate structure and a second gate structure, first, second, third source/drain structures, gate spacers, a first via and a second via, and a semiconductor layer. The first gate structure and the second gate structure are over the substrate. The first, second, third source/drain structures are over the substrate, in which the first and second source/drain structures are on opposite sides of the first gate structure, the second and third source/drain structures are on opposite sides of the second gate structure. The gate spacers are on opposite sidewalls of the first and second gate structures. The first via and the second via are over the first gate structure and the second gate structure, respectively, in which the first via is in contact with the first gate structure. The semiconductor layer is between the second via and the second gate structure.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: May 31, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Hsin-Wen Su, Chia-En Huang, Shih-Hao Lin, Lien-Jung Hung, Ping-Wei Wang
  • Patent number: 11342021
    Abstract: A mixed mode memory comprises a memory array, a word line decoder, an intermediary circuit and a reading and writing circuit, wherein the word line decoder is electrically coupled to the memory array, and the intermediary circuit is electrically coupled to the memory array and the writing circuit. The memory array comprises mixed mode memory cells with each cell comprising a reading and writing component group, a storage circuit and a selection circuit. The reading and writing component group is electrically coupled to a word line which controls the reading and writing component group to be conducted or not conducted, and electrically coupled to two bit lines which respectively transmit two data signals. The storage circuit generates two reading response signals based on a reading drive signal. The selection circuit controls the storage circuit to operate in a volatile or non-volatile storage mode based on a selection voltage.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: May 24, 2022
    Assignees: JIANGSU ADVANCED MEMORY TECHNOLOGY CO., LTD., JIANGSU ADVANCED MEMORY SEMICONDUCTOR CO., LTD., ALTO MEMORY TECHNOLOGY CORPORATION
    Inventors: Yu-Cheng Liao, Chun-Chih Liu, Ching-Sung Chiu
  • Patent number: 11335397
    Abstract: A memory cell that performs in-memory compute operations, includes a pair of cross-coupled inverters and a pair of transistors for selective performance of read/write/hold operations associated with logic states of the pair of cross-coupled inverters. The memory cell further includes a set of transistors that are gate coupled to and symmetrically arranged about the pair of cross coupled inverters. Output nodes of the memory cell are located at terminals of the set of transistors and provide output based on logic states of the pair of cross coupled inverters and input nodes provided between pairs of the set of transistors. A memory cell array may be generated having a high density arrangement memory cells that can perform in-memory compute operations. The memory cells can be arranged as a neural network including a set of memory cell networks that provide logic output operations based on logic states of the respective memory cells.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: May 17, 2022
    Assignee: STMicroelectronics International N.V.
    Inventors: Anuj Grover, Tanmoy Roy
  • Patent number: 11328762
    Abstract: Circuits, systems, and methods are described herein for generating a boost voltage for a write operation of a memory cell. In one embodiment, a boost circuit includes a first inverter and a second inverter, each configured to invert a write signal. The boost circuit also includes a transistor and a capacitor. The transistor is coupled to an output of the first inverter. The transistor is configured to charge a capacitor based on the write signal and provide a supply voltage to a write driver. The capacitor is coupled to an output of the second inverter. The capacitor is configured to generate and provide a delta voltage to the write driver.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: May 10, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Sanjeev Kumar Jain
  • Patent number: 11322200
    Abstract: A single-rail memory circuit includes an array of memory cells arranged in rows and columns and peripheral circuitry connected to the array for facilitating read and write operations with respect to selected memory cells. The peripheral circuitry includes, but is not limited to, boost circuits for the rows. Each boost circuit is connected to a wordline for a row and to a discrete voltage supply line for the same row. Each boost circuit for a row is configured to increase the voltage levels on the wordline and the voltage supply line for the row during a read of any selected memory cell within the row. Increasing the voltage levels on the wordline and on the voltage supply line during the read operation effectively boosts the read current. A method of operating the memory circuit reduces the probability of a read fail.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: May 3, 2022
    Assignee: GlobalFoundries U.S. Inc.
    Inventors: Vivek Raj, Shivraj G. Dharne, Uttam K. Saha, Mahbub Rashed
  • Patent number: 11315624
    Abstract: A memory cell of a 2-port static random access memory (SRAM) includes first and second p-type transistors and first to sixth n-type transistors. Gate interconnects extend in the X direction and are arranged in three rows in the Y direction. The gate interconnects in the first row form gates of the first n-type transistor, the first p-type transistor, and the fourth n-type transistor, the gate interconnect in the second row forms gates of the fifth and sixth n-type transistors, and the gate interconnects in the third row form gates of the third n-type transistor, the second n-type transistor, and the second p-type transistor.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: April 26, 2022
    Assignee: SOCIONEXT INC.
    Inventor: Yoshinobu Yamagami