Patents Examined by Fernando Hidalgo
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Patent number: 11581368Abstract: A memory device includes at least one bit line, at least one word line, and at least one memory cell. The memory cell includes a first transistor, a plurality of data storage elements, and a plurality of second transistors corresponding to the plurality of data storage elements. The first transistor includes a gate electrically coupled to the word line, a first source/drain, and a second source/drain. Each data storage element among the plurality of data storage elements and the corresponding second transistor are electrically coupled in series between the first source/drain of the first transistor and the bit line.Type: GrantFiled: December 15, 2020Date of Patent: February 14, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Meng-Han Lin, Sai-Hooi Yeong, Han-Jong Chia, Chenchen Jacob Wang, Yu-Ming Lin
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Patent number: 11574690Abstract: A system includes a memory device including a memory array including a plurality of wordline groups and control logic, operatively coupled with the memory array, to perform operation including causing a first erase verify to be performed sequentially with respect to each wordline group of the plurality of wordline groups, identifying a set of failing wordline groups determined to have failed the first erase verify, and causing a second erase verify to be performed sequentially with respect to each wordline group of the set of failing wordline groups.Type: GrantFiled: June 1, 2021Date of Patent: February 7, 2023Assignee: MICRON TECHNOLOGY, INC.Inventors: Ronit Roneel Prakash, Jiun-Horng Lai, Chengkuan Yin, Shinji Sato
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Patent number: 11568912Abstract: A memory cell includes a write bit line, a write transistor and a read transistor. The write transistor is coupled between the write bit line and a first node. The read transistor is coupled to the write transistor by the first node. The read transistor includes a ferroelectric layer. The write transistor is configured to set a stored data value of the memory cell by a write bit line signal that adjusts a polarization state of the read transistor. The polarization state corresponds to the stored data value.Type: GrantFiled: March 9, 2021Date of Patent: January 31, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Bo-Feng Young, Sai-Hooi Yeong, Chao-I Wu, Chih-Yu Chang, Yu-Ming Lin
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Patent number: 11568121Abstract: A method of designing a circuit is provided. The method includes: providing a circuit; selecting a first NMOS fin field-effect transistor (FinFET) in the circuit; and replacing the first NMOS FinFET having a first fin number with a second NMOS FinFET having a second fin number and a third NMOS FinFET having a third fin number, wherein the sum of the second fin number and the third fin number is equal to the first fin number.Type: GrantFiled: April 9, 2021Date of Patent: January 31, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Yi-Tzu Chen, Hau-Tai Shieh, Che-Ju Yeh
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Patent number: 11562785Abstract: A microelectronic device comprises local digit line structures, global digit line structures, source line structures, sense transistors, read transistors, and write transistors. The local digit line structures are coupled to strings of memory cells. The global digit line structures overlie the local digit line structures. The source line structures are interposed between the local digit line structures and the global digit line structures. The sense transistors are interposed between the source line structures and the global digit line structures, and are coupled to the local digit line structures and the source line structures. The read transistors are interposed between and are coupled to the sense transistors and the global digit line structures. The write transistors are interposed between and are coupled to the global digit line structures and the local digit line structures. Additional microelectronic devices, memory devices, and electronic systems are also described.Type: GrantFiled: August 30, 2021Date of Patent: January 24, 2023Assignee: Micron Technology, Inc.Inventors: Tomoharu Tanaka, Yoshiaki Fukuzumi
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Patent number: 11557330Abstract: Methods, systems, and devices for deck-level shunting in a memory device are described. A memory device may include memory arrays arranged in a stack of decks over a substrate, and a combination of deck selection circuitry and shunting circuitry may be distributed among the decks to leverage common substrate-based circuitry, such as logic or addressing circuitry. For example, each memory array of a stack may include a set of digit lines and deck selection circuitry, such as deck selection transistors or other switching circuitry, operable to couple the set of digit lines with a column decoder that may be shared among multiple decks. Each memory array of a stack also may include shunting circuitry, such as shunting transistors or other switching circuitry operable to couple the set of digit lines with a plate node, thereby equalizing a voltage across the memory cells of the respective memory array.Type: GrantFiled: August 31, 2021Date of Patent: January 17, 2023Assignee: Micron Technology, Inc.Inventor: Daniele Vimercati
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Patent number: 11551733Abstract: The present technology includes a data strobe clock output circuit. The data strobe clock output circuit includes a first output circuit configured to generate a rising clock and a falling clock in response to a clock and a first enable signal and output a first data strobe clock in response to the rising clock, the falling clock, and mode signals, and a second output circuit configured to generate a rising inverted clock and a falling inverted clock by inverting the rising clock and the falling clock generated by the first output circuit, and output a second data strobe clock in response to the rising inverted clock, the falling inverted clock, a second enable signal, and the mode signals.Type: GrantFiled: November 4, 2020Date of Patent: January 10, 2023Assignee: SK hynix Inc.Inventors: Eun Ji Choi, Ja Yoon Goo, Sung Hwa Ok
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Patent number: 11551779Abstract: An electronic device includes memory banks and repair circuitry configured to remap data from the memory banks to repair memory elements of the memory banks when a failure occurs. The repair circuitry includes a logic gate configured to receive an output from a memory bank of the memory banks, receive a failure signal indicating whether a corresponding memory element has failed, and transmit the output with a value of the output is based at least in part on the failure signal. The repair circuitry also includes error correction circuitry configured to receive the output via the logic gate and a multiplexer configured to receive the output from the memory bank, receive a repair value, and selectively output the output or the repair value from the repair circuitry as an output of the repair circuitry.Type: GrantFiled: April 26, 2021Date of Patent: January 10, 2023Assignee: Micron Technology, Inc.Inventor: Harish V. Gadamsetty
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Patent number: 11543995Abstract: Methods, systems, and devices for feedback for multi-level signaling in a memory device are described. A receiver may use a modulation scheme to communicate information with a host device. The receiver may include a first circuit, a second circuit, a third circuit, and a fourth circuit. Each of the first circuit, the second circuit, the third circuit, and the fourth circuit may determine, for a respective clock phase, a voltage level of a signal modulated using the modulation scheme. The receiver may include a first feedback circuit, a second feedback circuit, a third feedback circuit, and a fourth feedback circuit. The first feedback circuit that may use information received from the first circuit at the first clock phase and modify the signal input into the second circuit for the second clock phase.Type: GrantFiled: March 22, 2021Date of Patent: January 3, 2023Assignee: Micron Technology, Inc.Inventor: M. Ataul Karim
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Patent number: 11545202Abstract: Various embodiments of the present disclosure are directed towards a memory device. The memory device has a first transistor having a first source/drain and a second source/drain, where the first source/drain and the second source/drain are disposed in a semiconductor substrate. A dielectric structure is disposed over the semiconductor substrate. A first memory cell is disposed in the dielectric structure and over the semiconductor substrate, where the first memory cell has a first electrode and a second electrode, where the first electrode of the first memory cell is electrically coupled to the first source/drain of the first transistor. A second memory cell is disposed in the dielectric structure and over the semiconductor substrate, where the second memory cell has a first electrode and a second electrode, where the first electrode of the second memory cell is electrically coupled to the second source/drain of the first transistor.Type: GrantFiled: July 19, 2021Date of Patent: January 3, 2023Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Fa-Shen Jiang, Hsia-Wei Chen, Hsun-Chung Kuang, Hai-Dang Trinh, Cheng-Yuan Tsai
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Patent number: 11545207Abstract: A semiconductor memory device is provided. The semiconductor memory device can suppress increases in power consumption. As a result, damage to the data normally caused by row hammer problem can be prevented. The semiconductor memory device includes a control unit. The control unit controls a refresh operation for a memory to be performed at any interval, wherein there are a plurality of possible intervals. When read/write access to the memory is required, the control unit controls the refresh operation for the memory to be performed with a shortest interval among the intervals, until a predetermined condition is met.Type: GrantFiled: July 28, 2021Date of Patent: January 3, 2023Assignee: WINDBOND ELECTRONICS CORP.Inventor: Takahiko Sato
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Patent number: 11537293Abstract: A data storage device includes a memory device that includes a plurality of zones of a zoned namespace and a controller coupled to the memory device. During operation, the controller maintains a window-based read and write monitor data structure to determine the read density and write density of each of the zones. The read density and write density are utilized to determine a cost for allocating wear leveling data for each zone. Based on the cost and the available storage capacity of the storage class memory, data, in a data management operation, is moved to either the storage class memory or the zone with the low cost. The host device is informed of the storage class memory usage for future data management operations.Type: GrantFiled: February 18, 2021Date of Patent: December 27, 2022Assignee: Western Digital Technologies, Inc.Inventors: Chao Sun, Xinde Hu, Dejan Vucinic
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Patent number: 11538989Abstract: An in-memory computing architecture is disclosed that can evaluate the transitive closure of graphs using the natural parallel flow of information in 3-D nanoscale crossbars. The architecture can be implemented using 3-D crossbar architectures with as few as two layers of 1-diode 1-resistor (1D1R) interconnects. The architecture avoids memory-processor bottlenecks and can hence scale to large graphs. The approach leads to a runtime complexity of O(n2) using O(n2) memristor devices. This compares favorably to conventional algorithms with a time complexity of O((n3)/p+(n2) log p) on p processors. The approach takes advantage of the dynamics of 3-D crossbars not available on 2-D crossbars.Type: GrantFiled: July 30, 2018Date of Patent: December 27, 2022Assignee: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.Inventors: Alvaro Velasquez, Sumit Kumar Jha
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Patent number: 11532366Abstract: A storage device includes a semiconductor memory device and a storage controller. The semiconductor memory device receives write data based on a data strobe signal and data signals, and outputs read data based on the data strobe signal and the data signals. The storage controller transmits the data strobe signal and the data signals in parallel to the semiconductor memory device through signal lines. The storage controller includes a first delay circuit that delays the data signals such that some edges of windows of the data signals on the signal lines are desynchronized by first skew offsets which are different from one another.Type: GrantFiled: March 15, 2021Date of Patent: December 20, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jiwoon Park, Jaehyurk Choi
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Patent number: 11531618Abstract: A memory module includes a first memory device, a second memory device, and a processing buffer circuit that is connected to the first memory device and the second memory device (independently of each other) and a host. A processing buffer circuit is provided, which includes a processing circuit and a buffer. The processing circuit processes at least one of data received from the host, data stored in the first memory device, or data stored in the second memory device based on a processing command received from the host. The buffer is configured to store data processed by the processing circuit. The processing buffer circuit is configured to communicate with the host in compliance with a DDR SDRAM standard.Type: GrantFiled: January 25, 2021Date of Patent: December 20, 2022Inventors: Kyungsoo Kim, Jinin So, Jong-Geon Lee, Yongsuk Kwon, Jin Jung, Jeonghyeon Cho
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Patent number: 11527271Abstract: The invention is directed to a self-correcting modular-redundancy-memory device, comprising three bistable-memory elements and a majority voter. The bistable-memory elements receive respective binary data signal, clock signal, and a feedback signal. Each of the bistable-memory elements is configured, in response to the clock signal assuming a first value, to provide a binary output signal with an output-signal value correlated to a data-signal value of the data signal, and in response to the clock signal assuming a second clock-signal value, to provide the output signal with the output-signal value indicative of a current feedback-signal value of the feedback signal. The majority voter receives the output signals each of the bistable-memory elements and is configured to provide the feedback signal with the feedback-signal value indicative of that output-signal value taken on by a majority of the currently received output signals.Type: GrantFiled: September 3, 2021Date of Patent: December 13, 2022Assignee: IHP GMBH—Innovations for High Performance Microelectronics / Leibniz-Institut für innovative MikroelektronikInventors: Oliver Schrape, Anselm Breitenreiter, Frank Vater, Milos Krstic
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Patent number: 11527281Abstract: Apparatuses with a signal line in a semiconductor device are described. An example apparatus includes one or more power supply voltage lines in a first conductive layer, a plurality of transistors and a signal line in a second conductive layer. Each transistor of the plurality of transistors includes an active region disposed in a substrate and a gate electrode above the active region. The signal line in the second conductive layer is below the first conductive layer and above the active regions of the plurality of transistors. The signal line is coupled to the gate electrodes of the plurality of transistors. The signal line has electrical resistance higher than electrical resistance of the power supply voltage line.Type: GrantFiled: March 30, 2021Date of Patent: December 13, 2022Assignee: Micron Technology, Inc.Inventors: Kenichi Watanabe, Moeha Shibuya
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Patent number: 11522124Abstract: A spin-orbit torque type magnetoresistance effect element including a magnetoresistance effect element having a first ferromagnetic metal layer with a fixed magnetization direction, a second ferromagnetic metal layer with a varying magnetization direction, and a non-magnetic layer sandwiched between the first ferromagnetic metal layer and the second ferromagnetic metal layer; and spin-orbit torque wiring that extends in a first direction intersecting with a stacking direction of the magnetoresistance effect element and that is joined to the second ferromagnetic metal layer; wherein the magnetization of the second ferromagnetic metal layer is oriented in the stacking direction of the magnetoresistance effect element; and the second ferromagnetic metal layer has shape anisotropy, such that a length along the first direction is greater than a length along a second direction orthogonal to the first direction and to the stacking direction.Type: GrantFiled: August 22, 2019Date of Patent: December 6, 2022Assignee: TDK CORPORATIONInventors: Tomoyuki Sasaki, Yohei Shiokawa
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Patent number: 11521683Abstract: Numerous embodiments are disclosed for a high voltage generation algorithm and system for generating high voltages necessary for a particular programming operation in analog neural memory used in a deep learning artificial neural network. Compensation measures can be utilized that compensate for changes in voltage or current as the number of cells being programmed changes.Type: GrantFiled: March 3, 2021Date of Patent: December 6, 2022Assignee: SILICON STORAGE TECHNOLOGY, INC.Inventors: Hieu Van Tran, Thuan Vu, Stanley Hong, Anh Ly, Vipin Tiwari, Nhan Do
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Patent number: 11515333Abstract: Disclosed are: a three-dimensional flash memory in which the degree of integration in a horizontal direction is improved so as to promote integration; and a manufacturing method therefor. A three-dimensional flash memory according to one embodiment comprises: at least one channel layer extending in one direction; at least one ferroelectric film used as a data storage place while being extended in the one direction so as to encompass the at least one channel layer; and a plurality of electrode layers stacked so as to be vertically connected to the at least one ferroelectric film.Type: GrantFiled: December 26, 2019Date of Patent: November 29, 2022Assignee: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)Inventors: Yun Heub Song, Chang Wan Choi, Jae Kyeong Jeong