Patents Examined by Fernando Hidalgo
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Patent number: 11776602Abstract: Routing arrangements for 3D memory arrays and methods of forming the same are disclosed. In an embodiment, a memory array includes a first word line extending from a first edge of the memory array in a first direction, the first word line having a length less than a length of a second edge of the memory array perpendicular to the first edge of the memory array; a second word line extending from a third edge of the memory array opposite the first edge of the memory array, the second word line extending in the first direction, the second word line having a length less than the length of the second edge of the memory array; a memory film contacting the first word line; and an OS layer contacting a first source line and a first bit line, the memory film being disposed between the OS layer and the first word line.Type: GrantFiled: July 22, 2022Date of Patent: October 3, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Meng-Han Lin, Han-Jong Chia, Sheng-Chen Wang, Feng-Cheng Yang, Yu-Ming Lin, Chung-Te Lin
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Patent number: 11776639Abstract: Storage devices include a memory array comprised of a plurality of memory devices. These memory devices are programmed with a modified distribution across the available memory states within the devices. The modified distribution of memory states attempts to minimize the use of memory states that are susceptible to negative effects. These negative effects can include read and write disturbs as well as data retention errors. Often, these negative effects occur on memory states on the lower and upper states within the voltage threshold range of the memory device. The distribution of memory states can be modified though the use of a modified randomization seed configured to change the probabilities of programming of each page within the memory device. This modification of the randomization seed can yield desired distribution of memory device states that are configured to reduce exposure to negative effects thus prolonging the overall lifespan of the storage device.Type: GrantFiled: October 3, 2022Date of Patent: October 3, 2023Assignee: Western Digital Technologies, Inc.Inventors: Amiya Banerjee, Vinayak Bhat, Harish R. Singidi
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Patent number: 11776605Abstract: A storage element includes a layer structure including a storage layer having a direction of magnetization which changes according to information, a magnetization fixed layer having a fixed direction of magnetization, and an intermediate layer disposed therebetween, which intermediate layer contains a nonmagnetic material. The magnetization fixed layer has at least two ferromagnetic layers having a direction of magnetization tilted from a direction perpendicular to a film surface, which are laminated and magnetically coupled interposing a coupling layer therebetween. This configuration may effectively prevent divergence of magnetization reversal time due to directions of magnetization of the storage layer and the magnetization fixed layer being substantially parallel or antiparallel, reduce write errors, and enable writing operation in a short time.Type: GrantFiled: April 29, 2022Date of Patent: October 3, 2023Assignee: Sony Group CorporationInventors: Yutaka Higo, Masanori Hosomi, Hiroyuki Ohmori, Kazuhiro Bessho, Tetsuya Asayama, Kazutaka Yamane, Hiroyuki Uchida
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Patent number: 11778803Abstract: 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: GrantFiled: September 29, 2021Date of Patent: October 3, 2023Assignee: Advanced Micro Devices, Inc.Inventor: Richard T. Schultz
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Patent number: 11776615Abstract: Systems and methods for read operations and management are disclosed. More specifically, this disclosure is directed to receiving a first read command directed to a first logical address and receiving, after the first read command, a second read command directed to a second logic address. The method also includes receiving, after the second read command, a third read command directed to a third logical address and determining that the first logical address and the third logical address correspond to a first physical address and a third physical address, respectively. The first physical address and the third physical address can be associated with a first word line of a memory component while the second logical address corresponds to a second physical address associated with a second word line of the memory component. The method includes executing the first read command and the third read command sequentially.Type: GrantFiled: February 16, 2022Date of Patent: October 3, 2023Assignee: Micron Technology, Inc.Inventors: Tomoko Ogura Iwasaki, Tracy D. Evans, Avani F. Trivedi, Aparna U. Limaye, Jianmin Huang
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Patent number: 11770987Abstract: A ReRAM device includes a dielectric layer, a bottom electrode, a data storage layer, a metal covering layer, and a top electrode. The dielectric layer has a recess. At least a portion of the bottom electrode is exposed through the recess. The data storage layer is disposed on a sidewall and a bottom surface of the recess, electrically contacts with the bottom electrode, and has a top portion lower than an opening of the recess. The metal covering layer blanket covers the data storage layer, has an extension portion covering the top portion, and connects to the sidewall of the recess. The top electrode is disposed in the recess, and is electrically contact with the metal covering layer.Type: GrantFiled: September 30, 2021Date of Patent: September 26, 2023Assignee: UNITED MICROELECTRONICS CORP.Inventors: Shu-Hung Yu, Chun-Hung Cheng, Chuan-Fu Wang
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Patent number: 11768637Abstract: An interface circuit includes; a transmitter interface circuit including an output pad and configured to receive a first input data signal and generate a second input data signal from the first input data signal, and a receiver interface circuit including an input pad and configured to receive the second input data signal via the output pad and an internal channel. The transmitter interface circuit also includes an equalization signal generation circuit configured to receive the first input data signal, generate a pulse signal by delaying the first input data signal by applying a target delay time or a target width adjustment to the first input data signal, generate an equalization signal based on the pulse signal, and provide the equalization signal to the output pad to suppress a reflected wave on the internal channel.Type: GrantFiled: April 15, 2022Date of Patent: September 26, 2023Inventors: Kihwan Seong, Donguk Park
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Patent number: 11763882Abstract: A twelve-transistor (12T) memory cell for a memory device that includes a transmission gate, a cross-coupled inverter circuit operably connected to the transmission gate, and a tri-state inverter operably connected to the cross-coupled inverter circuit. The cross-coupled inverter includes another tri-state inverter cross-coupled to an inverter circuit. Various operations for the 12T memory cell, as well as circuitry to perform the operations, are disclosed.Type: GrantFiled: July 25, 2022Date of Patent: September 19, 2023Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Mahmut Sinangil, Yen-Huei Chen, Yen-Ting Lin, Hung-Jen Liao, Jonathan Tsung-Yung Chang
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Patent number: 11756634Abstract: A semiconductor memory device includes word lines, first and second select gate lines, first and second semiconductor columns, first and second bit lines, and first and second transistors. The word lines are arranged in a first direction. The first and second select gate lines extend in a second direction and overlap with the word lines viewed from the first direction. The first and second select gate lines are arranged in the second direction. The first semiconductor column is opposed to the word lines and the first select gate line. The second semiconductor column is opposed to the word lines and the second select gate line. The first and second bit lines extend in a third direction and overlap with the first and second semiconductor columns viewed from the first direction. The first and second transistors are electrically connected to the first and second select gate lines.Type: GrantFiled: September 22, 2022Date of Patent: September 12, 2023Assignee: Kioxia CorporationInventor: Tetsuaki Utsumi
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Patent number: 11756598Abstract: An electronic device includes a dock dividing circuit configured to generate sampling clocks, alignment clocks and output clocks by dividing a frequency of a write clock; and a data alignment circuit configured to, in a first operation mode, receive input data having any one level among a first level to a fourth level and generate alignment data by aligning the input data in synchronization with the sampling clocks, the alignment clocks and the output clocks, and to, in a second operation mode, receive the input data having any one level of the first level and the fourth level and generate the alignment data by aligning the input data in synchronization with the sampling clocks, the alignment clocks and the output clocks.Type: GrantFiled: September 10, 2021Date of Patent: September 12, 2023Assignee: SK hynix Inc.Inventors: Gang Sik Lee, Joo Hyung Chae
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Patent number: 11756647Abstract: Different embodiments of local redundancy decoder circuits that can be used in a memory device are disclosed. The different types of local redundancy decoder circuits are operably connected to the columns of memory cells in a memory array.Type: GrantFiled: June 17, 2022Date of Patent: September 12, 2023Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chien-Yu Huang, Chia-En Huang, Cheng Hung Lee, Hua-Tai Shieh
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Patent number: 11756595Abstract: A memory device includes memory cells operably connected to column signal lines and to word signal lines. The column signal lines associated with one or more memory cells to be accessed (e.g., read) are precharged to a first voltage level. The column signal lines not associated with the one or more memory cells to be accessed are precharged to a second voltage level, where the second voltage level is less than the first voltage level.Type: GrantFiled: February 21, 2022Date of Patent: September 12, 2023Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventor: Ed McCombs
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Patent number: 11749664Abstract: A circuit is provided. The circuit includes a first die that includes a memory array, and the memory array includes a plurality of memory cells, a sensing element coupled to the plurality of memory cells, and a first plurality of conductive pads coupled to the sensing element. The circuit also includes a second die that includes an address decoder associated with the memory array of the first die and a second plurality of conductive pads coupled to the address decoder. The first die is coupled to the second die by an interposer. The address decoder of the second die is coupled to the sensing element of the first die. A first voltage swing of the first die is larger than a second voltage swing of the second die.Type: GrantFiled: July 12, 2022Date of Patent: September 5, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Yi-Ching Liu, Yih Wang, Chia-En Huang
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Patent number: 11749345Abstract: The present technology includes a memory device and a method of operating the memory device. The memory device includes a memory block including a plurality of memory cells connected to word lines, peripheral circuits configured to generate operation voltages to be applied to the word lines, and control logic configured to control the peripheral circuits in response to a program command, a read command, or an erase command. The peripheral circuits include a voltage generator that adjusts a section of threshold voltage distributions of memory cells to be programmed among the memory cells, according to a distance between the word lines.Type: GrantFiled: August 3, 2021Date of Patent: September 5, 2023Assignee: SK hynix Inc.Inventor: Sang Heon Lee
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Patent number: 11740795Abstract: Techniques for configurable link interfaces for a memory device are described. In some examples, memory devices may require periodic link training to support data transfer with a host device at relatively fast rates. However, in some managed memory applications, memory dies of a memory device may have integrated controllers that do not support such link training, and accordingly may not support some clock rates or data rates. To support data transfers between a host device and a memory device at relatively fast clock rates or data rates without link training, a memory die may be fabricated with a configurable link interface that can support different mappings between components and operation according to different clock rates or data rates. In some examples, a memory die may be fabricated in a manner that supports configurable mappings between an array and a data channel interface that are operable according to different multiplexing and serialization.Type: GrantFiled: April 14, 2022Date of Patent: August 29, 2023Assignee: Micron Technology, Inc.Inventors: Suryanarayana B. Tatapudi, John David Porter, Jaeil Kim, Mijo Kim
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Patent number: 11744088Abstract: According to one embodiment, a memory device includes: a first variable resistance layer; first and second semiconductor layers being in contact with the first variable resistance layer; a first word line; a second word line being adjacent to the first word line; and a third word line being adjacent to the first and second word lines with the first semiconductor layer, the first variable resistance layer, and the second semiconductor layer interposed therebetween, and provided between the first word line and the second word line. In the first variable resistance layer, a first region including a shortest path connecting the first word line and the third word line functions as a first memory cell, and a second region including a shortest path connecting the third word line and the second word line functions as a second memory cell.Type: GrantFiled: October 6, 2021Date of Patent: August 29, 2023Assignee: Kioxia CorporationInventors: Ryu Ogiwara, Daisaburo Takashima, Takahiko Iizuka
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Patent number: 11742344Abstract: A semiconductor device includes a stack structure comprising decks. Each deck of the stack structure comprises a memory element level comprising memory elements and control logic level in electrical communication with the memory element level, the control logic level comprising a first subdeck structure comprising a first number of transistors comprising a P-type channel region or an N-type channel region and a second subdeck structure comprising a second number of transistors comprising the other of the P-type channel region or the N-type channel region overlying the first subdeck structure. Related semiconductor devices and methods of forming the semiconductor devices are disclosed.Type: GrantFiled: January 5, 2022Date of Patent: August 29, 2023Assignee: Micron Technology, Inc.Inventors: Kurt D. Beigel, Scott E. Sills
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Patent number: 11735272Abstract: A memory device includes a memory array comprising a plurality of planes and a plurality of independent plane driver circuits. The memory device further includes control logic to detect an occurrence of a high noise event associated with a first independent plane driver circuit of the plurality of independent plane driver circuits. The control logic is further to determine whether a quiet event associated with a second independent plane driver circuit of the plurality of independent plane driver circuits is concurrently occurring. Responsive to determining that the quiet event associated with the second independent plane driver circuit is concurrently occurring, the control logic is to manage execution of the high noise event and the quiet event based on respective priorities of the first and second independent plane driver circuits.Type: GrantFiled: January 10, 2022Date of Patent: August 22, 2023Assignee: Micron Technology, Inc.Inventor: Theodore Pekny
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Patent number: 11733915Abstract: A memory system is provided. The memory system includes a memory controller and a data bus electrically coupled to the memory controller. The memory system further includes one or more memory devices communicatively coupled to the memory controller via the data bus, wherein the memory controller is configured to derive a read profile for each of the one or more memory devices to account for a time propagation delay of data being sent via the data bus during read operations of the one or more memory devices.Type: GrantFiled: May 19, 2022Date of Patent: August 22, 2023Assignee: Micron Technology, Inc.Inventors: Yang Lu, Christopher Heaton Stoddard
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Patent number: 11727989Abstract: 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. In one example, a method for programming a plurality of non-volatile memory cells in an array of non-volatile memory cells, comprises generating a high voltage, and programming a plurality of non-volatile memory cells in an array using the high voltage when a programming enable signal is asserted and providing a feedback loop to maintain the high voltage while programming the plurality of non-volatile memory cells.Type: GrantFiled: May 2, 2022Date of Patent: August 15, 2023Assignee: SILICON STORAGE TECHNOLOGY, INC.Inventors: Hieu Van Tran, Thuan Vu, Stanley Hong, Anh Ly, Vipin Tiwari, Nhan Do