Patents Assigned to Macronix International Co.
  • Patent number: 11984166
    Abstract: A storage device for generating an identity code and an identity code generating method are disclosed. The storage device includes a first storage circuit, a second storage circuit and a reading circuit. The first storage circuit stores a plurality of first data and the first data have a plurality of bits. The second storage circuit stores a plurality of second data and the second data have a plurality of bits. The reading circuit reads the second data from the second storage circuit to form a first sequence, selects a first portion of the first data according to the first sequence, reads the first portion of the first data from the first storage circuit to form a target sequence and outputs the target sequence to serve as an identity code.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: May 14, 2024
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Yu-Hsuan Lin, Dai-Ying Lee, Ming-Hsiu Lee
  • Patent number: 11984169
    Abstract: An integrated circuit includes a memory and peripheral circuits with a temperature sensor used to automatically adjust operating voltages. The temperature sensor includes a first circuit to generate a temperature-dependent voltage (TDV) that is dependent on an operating temperature of the integrated circuit, and a second circuit to generate a plurality of temperature reference voltages, based on or more codes. One or more comparator circuits compare individual ones of the plurality of reference voltages with the TDV, to generate one or more comparison signals that are indicative of the operating temperature of the integrated circuit.
    Type: Grant
    Filed: May 2, 2023
    Date of Patent: May 14, 2024
    Assignee: Macronix International Co., Ltd.
    Inventor: Yih-Shan Yang
  • Patent number: 11983124
    Abstract: Methods, devices, systems, and apparatus including computer-readable mediums for managing error correction coding in memory systems are provided. In one aspect, a memory system includes a system controller configured to communicate with a host device, and a memory device coupled to the system controller. The memory device includes at least one memory and a memory controller coupled to the at least one memory. The memory controller includes an error correction code (ECC) circuit configured to perform error correction coding for data received from at least one of the system controller or the at least one memory.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: May 14, 2024
    Assignee: Macronix International Co., Ltd.
    Inventors: Kuan-Chieh Wang, Shih-Chou Juan
  • Publication number: 20240153869
    Abstract: Memory devices are implemented within a vertical memory structure, comprising a stack of alternating layers of insulator material and word line material, with a series of alternating conductive pillars and insulating pillars disposed through stack. Data storage structures are disposed on inside surfaces of the layers of word line material at cross-points of the insulating pillars and the layers of word line material. Semiconductor channel material is disposed between the insulating pillars and the data storage structures at cross-points of the insulating pillars with the layers of word line material. The semiconductor channel material extends around an outside surface of the insulating pillars, contacting the adjacent conductive pillars on both sides to provide source/drain terminals.
    Type: Application
    Filed: January 15, 2024
    Publication date: May 9, 2024
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Erh-Kun LAI, Hsiang-Lan LUNG
  • Publication number: 20240154607
    Abstract: Systems, methods, circuits, and apparatus for managing signal transfers in semiconductor devices are provided. In one aspect, an integrated circuit includes: one or more target units each configured to receive a signal and a plurality of inverting units arranged on signal paths to the one or more target units. For each of the one or more target units, one or more corresponding inverting units of the plurality of inverting units are configured to invert the signal multiple times along a corresponding signal path to the target unit to cause a signal width of the inverted signal received by the target unit to be substantially identical to a signal width of the signal.
    Type: Application
    Filed: November 9, 2022
    Publication date: May 9, 2024
    Applicant: Macronix International Co., Ltd.
    Inventors: Wei-Yi Cheng, Su-Chueh Lo
  • Publication number: 20240153564
    Abstract: Systems, methods, circuits, and apparatus for managing multi-block operations in memory devices are provided. In one aspect, a memory device includes a memory cell array including at least two blocks, a bit line coupled to a string of memory cells in each of the at least two blocks respectively, a common source line (CSL) coupled to strings coupled to the bit line in the at least two blocks, and a circuitry configured to perform a multi-block operation in the memory cell array by at least one of: forming a first current path from the bit line through the strings to the CSL coupled to a ground to discharge a capacitor associated with the bit line that is pre-charged, or forming a second current path from the CSL coupled to a supply voltage through the strings to the bit line to charge the capacitor that is pre-discharged.
    Type: Application
    Filed: November 7, 2022
    Publication date: May 9, 2024
    Applicant: Macronix International Co., Ltd.
    Inventors: Wei-Han Chen, Chun-Hsiung Hung
  • Publication number: 20240147877
    Abstract: Vertical 3D cross point memory has memory cells formed at cross points of vertical bit lines and horizontal word lines. The memory cells are formed of two layers, enabling higher density than conventional techniques. One of the layers optionally includes OTS (Ovonic Threshold Switch) material to enable information storage.
    Type: Application
    Filed: June 9, 2023
    Publication date: May 2, 2024
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventor: Hsiang-Lan LUNG
  • Publication number: 20240136305
    Abstract: The present disclosure provides a 3D memory device such as a 3D AND flash memory and a method of forming a seal structure. The 3D memory device includes a chip region including a chip array and a seal region including a seal structure. The seal structure includes a ring-shaped stack structure disposed on a substrate and surrounding the chip array and a dummy channel pillar array penetrating through the ring-shaped stack structure and including a first dummy channel pillar group and a second dummy channel pillar group. The first dummy channel pillar group includes first dummy pillars that are arranged in a first direction and a second direction crossing the first direction to surround the chip array. The second dummy channel pillar group includes second dummy pillars that are arranged in the first direction and the second direction to surround the chip array. The first and the second dummy channel pillars are staggered with each other in the first and second directions.
    Type: Application
    Filed: October 24, 2022
    Publication date: April 25, 2024
    Applicant: MACRONIX International Co., Ltd.
    Inventors: Cheng-Yu Lee, Teng-Hao Yeh
  • Patent number: 11966628
    Abstract: A memory device, includes a memory array for storing a plurality of vector data each of which has an MSB vector and a LSB vector. The memory array includes a plurality of memory units each of which has a first bit and a second bit. The first bit is used to store the MSB vector of each vector data, the second bit is used to store the LSB vector of each vector data. A bit line corresponding to each vector data executes one time of bit-line-setup, and reads the MSB vector and the LSB vector of each vector data according to the bit line. The threshold voltage distribution of each memory unit is divided into N states, where N is a positive integer and N is less than 2 to the power of 2, and the effective bit number stored by each memory unit is less than 2.
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: April 23, 2024
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Wei-Chen Wang, Han-Wen Hu, Yung-Chun Li, Huai-Mu Wang, Chien-Chung Ho, Yuan-Hao Chang, Tei-Wei Kuo
  • Patent number: 11967378
    Abstract: The application discloses an analog content addressable memory (CAM) device, an analog CAM cell and a method for data searching and comparing thereof. The CAM cell includes: a first memory cell and a second memory cell coupled to each other, wherein the analog CAM cell stores analog storage data which is corresponding to a match range, the match range is determined based on first and second threshold voltages of the analog CAM cell; an analog search data is converted into first and second analog search voltages; the first and the second memory cells receive the first and the second analog search voltages; and the analog CAM memory cell generates a memory cell current, or the analog CAM memory cell keeps or discharges a match line voltage on a match line coupled to the analog CAM memory cell.
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: April 23, 2024
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventor: Po-Hao Tseng
  • Patent number: 11968833
    Abstract: A memory device includes a source element, a drain element, channel layers, control electrode layers, and a memory layer. The channel layers are individually electrically connected between the source element and the drain element. Memory cells are defined in the memory layer between the control electrode layers and the channel layers.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: April 23, 2024
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Wei-Chen Chen, Hang-Ting Lue
  • Patent number: 11968831
    Abstract: A memory device includes a substrate, a first dielectric structure, a second dielectric structure, a channel structure, a source structure, and a drain structure. The first dielectric structure and the second dielectric structure are disposed on the substrate, and are spaced apart from each other in a first direction. The channel structure interconnects the first dielectric structure and the second dielectric structure. The source structure and the drain structure are on opposite ends of the channel structure, and are respectively embedded in the first dielectric structure and the second dielectric structure, wherein a ratio in length along the first direction of the source structure to the first dielectric structure is between 0.3 and 0.4.
    Type: Grant
    Filed: September 14, 2022
    Date of Patent: April 23, 2024
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventor: Be-Shan Tseng
  • Patent number: 11960769
    Abstract: A memory device includes a command decoder that implements security logic to detect a command sequence to read a security region of a memory array with continuous encrypted data and to output/input specific contexts for the data. Output/input of specific contexts can be during a dummy cycle to achieve greater performance. A host interfacing can, for example, execute a single command to both get the encrypted data and specific contexts that were used to encrypt the data. Our technology can implement transferring data on the system bus in ciphertext and encrypted by a different Nonce or a different session key than used in a previous transfer operation. In this way, data will be represented with different ciphertext on the bus at different sessions; thereby defending against a replay attack.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: April 16, 2024
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Chia-Jung Chen, Chin-Hung Chang, Ken-Hui Chen
  • Patent number: 11960759
    Abstract: A data search method for a memory device is provided. The data search method includes: based on a recorded compression mode, vectoring a search data to generate a search data vector, and based on the recorded compression mode, compressing the search data and a plurality of objects in a database; setting a search condition; searching the objects of the database by the search data vector to determine whether the search data is matched with the objects of the database; and recording and outputting at least one matched object of the database, the at least one matched object matched with the search data.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: April 16, 2024
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventor: Shih-Hung Chen
  • Publication number: 20240118806
    Abstract: Systems, devices, methods, and circuits for managing content addressable memory (CAM) devices. In one aspect, a semiconductor device includes: a memory cell array configured to store data in memory cells, and a circuitry coupled to the memory cell array and configured to execute a search operation in the memory cell array according to a search instruction. The search instruction includes at least one of search data or an option code, and the option code specifies, for the search operation, at least one of a search length or a search depth.
    Type: Application
    Filed: October 6, 2022
    Publication date: April 11, 2024
    Applicant: Macronix International Co., Ltd.
    Inventors: Chin-Hung Chang, Ken-Hui Chen, Chun-Hsiung Hung
  • Publication number: 20240121954
    Abstract: A memory device includes a first stack structure including first gate layers and first insulating layers alternately stacked with each other. A first channel pillar extends through the first stack structure. A second stack structure is located on the first stack structure and includes second gate layers and second insulating layers alternately stacked with each other. A second channel pillar extends through the second stack structure and is separated from the first channel pillar. A first conductive pillar and a second conductive pillar are located in and electrically connecting with the first channel pillar and the second channel pillar. A charge storage structure is located between the first gate layers and the first channel pillar, and between the second gate layers and the second channel pillar. The memory device may be applied to a 3D AND flash memory.
    Type: Application
    Filed: October 11, 2022
    Publication date: April 11, 2024
    Applicant: MACRONIX International Co., Ltd.
    Inventors: Chih-Wei Hu, Teng-Hao Yeh
  • Publication number: 20240120018
    Abstract: A memory device, a failure bits detector, and a failure bits detection method thereof are provided. The failure bits detector includes a current generator, a current mirror, and a comparator. The current generator generates a first current according to a reference code. The current mirror mirrors the first current to generate a second current at a second end of the current mirror. The comparator compares a first voltage at a first input end with a second voltage at a second input end to generate a detection result.
    Type: Application
    Filed: October 5, 2022
    Publication date: April 11, 2024
    Applicant: MACRONIX International Co., Ltd.
    Inventors: Chung-Han Wu, Che-Wei Liang, Chih-He Chiang, Shang-Chi Yang
  • Patent number: 11955186
    Abstract: A memory device for in-memory search is provided. The memory device includes a plurality of memory cells, and each of the memory cells stores a stored data and receives a search data, including a first transistor and a second transistor. The first transistor has a first threshold voltage and receives a first gate bias. The second transistor is connected to the first transistor, and the second transistor has a second threshold voltage and receives a second gate bias. The stored data is encoded according to the first threshold voltage and the second threshold voltage, and the search data is encoded according to the first gate bias and the second gate bias. There is a mismatch distance between the stored data and the search data. An output current generated by each of the memory cells is related to the mismatch distance.
    Type: Grant
    Filed: July 13, 2022
    Date of Patent: April 9, 2024
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Po-Hao Tseng, Tian-Cih Bo
  • Patent number: 11955168
    Abstract: A memory device is provided. The memory device includes a memory array of a plurality of memory elements, a plurality of word lines or word line pairs, a plurality of bit line pairs, and a plurality of common source lines. Each of the memory elements includes two memory cells. The memory device is configured for calculating an energy value based on a plurality of state signals and a plurality of coefficients, and the two memory cells of each of the memory elements are configured for performing an individual selection such that one of the two memory cells of each of the memory elements receives two corresponding state signals from a corresponding word line or a corresponding word line pair and a corresponding bit line pair and generates an output current into a corresponding common source line for calculating the energy value.
    Type: Grant
    Filed: August 12, 2022
    Date of Patent: April 9, 2024
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Yun-Yuan Wang, Ming-Hsiu Lee
  • Patent number: 11955416
    Abstract: A semiconductor structure is provided. The semiconductor structure comprises a substrate, a via, a liner layer, a barrier layer, and a conductor. The via penetrates through the substrate. The liner layer is formed on a sidewall of the via. The barrier layer is formed on the liner layer. The barrier layer comprises a conductive 2D material. The conductor fills a remaining space of the via.
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: April 9, 2024
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Cheng-Hsien Lu, Yun-Yuan Wang, Dai-Ying Lee