Patents by Inventor Ming-Hsiu Lee

Ming-Hsiu Lee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11532337
    Abstract: A multilevel content addressable memory, a multilevel coding method and a multilevel searching method are provided. The multilevel coding method includes the following steps. A highest decimal value of a multilevel-bit binary data is obtained. A length of a digital string data is set as being the highest decimal value of the multilevel-bit binary data. The multilevel-bit binary data is converted into the digital string data. If a content of the multilevel-bit binary data is an exact value, a number of an indicating bit in the digital string data is the exact value.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: December 20, 2022
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Ming-Hsiu Lee, Po-Hao Tseng
  • Publication number: 20220366988
    Abstract: A content-address memory (CAM) and an operation method are provided. The content-address memory comprises: a plurality of first signal lines; a plurality of second signal lines; and a plurality of CAM memory cells coupled to the first signal lines and the second signal lines, wherein in data match, a plurality of input signals are input into the CAM memory cells via the first signal lines; the input signals are compared with contents stored in the CAM memory cells; and a match result is determined based on an electrical characteristic of the second signal lines.
    Type: Application
    Filed: May 14, 2021
    Publication date: November 17, 2022
    Inventors: Po-Hao TSENG, Yu-Hsuan LIN, Feng-Min LEE, Ming-Hsiu Lee
  • Publication number: 20220359016
    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: Application
    Filed: July 29, 2021
    Publication date: November 10, 2022
    Inventors: Yu-Hsuan LIN, Dai-Ying LEE, Ming-Hsiu LEE
  • Publication number: 20220246607
    Abstract: A three-way switch array structure including N first connectors, M second connectors, N×M third connectors and N×M three-way switches is provided, each three-way switch has a first terminal, a second terminal, a third terminal, a first switch and a second switch. Each of first terminals is disposed on one of the first connectors, each of second terminals is disposed on one of the second connectors, and each of third terminals is disposed on one of the third connectors, the first switch is disposed between the first terminal and the third terminal, and the second switch is disposed between the second terminal and the third terminal, wherein N and M are positive integers greater than or equal to 1.
    Type: Application
    Filed: February 3, 2021
    Publication date: August 4, 2022
    Inventors: Shih-Hung CHEN, Ming-Hsiu LEE
  • Publication number: 20220246218
    Abstract: A flash memory cell includes a rectifying device and a transistor. The rectifying device has an input end coupled to a bit line. The transistor has a charge storage structure. The transistor has a first end coupled to an output end of the rectifying device, the transistor has a second end coupled to a source line, and a control end of the transistor is coupled to a word line.
    Type: Application
    Filed: February 3, 2021
    Publication date: August 4, 2022
    Applicant: MACRONIX International Co., Ltd.
    Inventors: Feng-Min Lee, Po-Hao Tseng, Yu-Hsuan Lin, Ming-Hsiu Lee
  • Publication number: 20220238151
    Abstract: An in-memory computation device and computation method are provided. The in-memory computation device, including a memory cell array, an input buffer, and a sense amplifier, is provided. The memory cell array includes a memory cell block. The memory cell block corresponds to at least one word line, and stores multiple weight values. Memory cells on the memory cell block respectively store multiple bits of each weight value. The input buffer is coupled to multiple bit lines, and respectively transmits multiple input signals to the bit lines. The memory cell array performs a multiply-add operation on the input signals and the weight values to generate multiple first operation results corresponding to multiple bit orders. The sense amplifier adds the first operation results to generate a second operation result according to the bit orders corresponding to the first operation results.
    Type: Application
    Filed: June 10, 2021
    Publication date: July 28, 2022
    Applicant: MACRONIX International Co., Ltd.
    Inventors: Yu-Hsuan Lin, Po-Hao Tseng, Feng-Min Lee, Ming-Hsiu Lee
  • Publication number: 20220237405
    Abstract: A data recognition apparatus and a recognition method are provided. The data recognition apparatus includes a data augmentation device, a feature extractor, and a comparator. The data augmentation device receives a plurality of target information and performs augmentation on each of the target information to generate a plurality of augmented target information. The feature extractor receives queried information and the augmented target information to extract features of the augmented target information and the queried information to respectively generate a plurality of augmented target feature values and a queried feature value. The comparator generates a recognition result according to the queried feature value and the augmented target feature values.
    Type: Application
    Filed: June 10, 2021
    Publication date: July 28, 2022
    Applicant: MACRONIX International Co., Ltd.
    Inventors: Yun-Yuan Wang, Feng-Min Lee, Po-Hao Tseng, Ming-Hsiu Lee
  • Publication number: 20220199490
    Abstract: A semiconductor structure and a manufacturing method for the same. The semiconductor structure includes a plug element and a via element. The plug element includes a tungsten plug. The plug element has a plug size in a lateral direction. The via element is electrically connected on the plug element. The via element is non-symmetrical with respect a center line of the plug element extending along a longitudinal direction. The via element has a via size in the lateral direction. The plug size is bigger than the via size.
    Type: Application
    Filed: March 8, 2022
    Publication date: June 23, 2022
    Inventors: Dai-Ying LEE, Ming-Hsiu LEE
  • Patent number: 11328775
    Abstract: A ternary content addressable memory and a memory cell thereof are provided. The ternary content addressable memory cell includes a first transistor and a second transistor. The first transistor has a gate to receive a selection signal. A first end of the first transistor is coupled to a match line. A second end of the first transistor is coupled to a source line. The second transistor has a gate to receive an inverted selection signal. A first end of the second transistor is coupled to the match line. A second end of the second transistor is coupled to the source line. The first and second transistors have charge storage structures.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: May 10, 2022
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Po-Hao Tseng, Ming-Hsiu Lee, Feng-Min Lee
  • Patent number: 11302605
    Abstract: A semiconductor structure and a manufacturing method for the same. The semiconductor structure includes a plug element and a via element. The plug element includes a tungsten plug. The plug element has a plug size in a lateral direction. The via element is electrically connected on the plug element. The via element is non-symmetrical with respect a center line of the plug element extending along a longitudinal direction. The via element has a via size in the lateral direction. The plug size is bigger than the via size.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: April 12, 2022
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Dai-Ying Lee, Ming-Hsiu Lee
  • Publication number: 20220108748
    Abstract: A ternary content addressable memory and a memory cell thereof are provided. The ternary content addressable memory cell includes a first transistor and a second transistor. The first transistor has a gate to receive a selection signal. A first end of the first transistor is coupled to a match line. A second end of the first transistor is coupled to a source line. The second transistor has a gate to receive an inverted selection signal. A first end of the second transistor is coupled to the match line. A second end of the second transistor is coupled to the source line. The first and second transistors have charge storage structures.
    Type: Application
    Filed: October 7, 2020
    Publication date: April 7, 2022
    Applicant: MACRONIX International Co., Ltd.
    Inventors: Po-Hao Tseng, Ming-Hsiu Lee, Feng-Min Lee
  • Publication number: 20220068386
    Abstract: A TCAM comprises a plurality of first search lines, a plurality of second search lines, a plurality of memory cell strings and one or more current sensing units. The memory cell strings comprise a plurality of memory cells. Each of the memory cells is coupled to one of the first search lines and one of the second search lines. The current sensing units, coupled to the memory cell strings. In a search operation, a determination that whether any of the data stored in the memory cell strings matches a data string to be searched is made according to whether the one or more current sensing units detect current from the memory cell strings, or according to the magnitude of the current flowing out from the memory cell strings detected by the one or more current sensing units.
    Type: Application
    Filed: May 28, 2021
    Publication date: March 3, 2022
    Inventors: Po-Hao TSENG, Feng-Min LEE, Ming-Hsiu LEE, Liang-Yu CHEN, Yun-Yuan WANG
  • Patent number: 11195581
    Abstract: A memory cell includes: a transistor having a control terminal coupled to a first node; a first terminal coupled to a first signal line; and a second terminal coupled to a second signal line; a first resistance element, having a first terminal coupled to the first node and a second terminal coupled to a second node; and a second resistance element, having a first terminal coupled to the first node and a second terminal coupled to a third node.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: December 7, 2021
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventor: Ming-Hsiu Lee
  • Publication number: 20210326685
    Abstract: Machine learning of model parameters for a neural network using a computing system is provided, that produces error-aware model parameters. An iterative process to converge on trained model parameters to be applied in the inference engine, includes applying a sequence of input training data sets to a neural network to produce inference results for the sequence using a set of model parameters in the neural network combined with factors based on a model of non-ideal characteristics of target memory to provide a training set of model parameters. An inference engine using the target memory technology to store the model parameters can have more stable results across a large number of engines.
    Type: Application
    Filed: April 20, 2020
    Publication date: October 21, 2021
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventor: Ming-Hsiu LEE
  • Patent number: 11138497
    Abstract: An in-memory computing device includes a plurality of synaptic layers including a first type of synaptic layer and a second type of synaptic layer. The first type of synaptic layer comprises memory cells of a first type of memory cell and the second type of synaptic layer comprises memory cells of a second type, the first type of memory cell being different than the second type of memory cell. The first and second types of memory cells can be different types of memories, have different structures, different memory materials, and/or different read/write algorithms, any one of which can result in variations in the stability or accuracy of the data stored in the memory cells.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: October 5, 2021
    Assignee: MACRONIX INTERNATIONAL CO., LTD
    Inventors: Yu-Hsuan Lin, Chao-Hung Wang, Ming-Hsiu Lee
  • Publication number: 20210296208
    Abstract: A semiconductor structure and a manufacturing method for the same. The semiconductor structure includes a plug element and a via element. The plug element includes a tungsten plug. The plug element has a plug size in a lateral direction. The via element is electrically connected on the plug element. The via element is non-symmetrical with respect a center line of the plug element extending along a longitudinal direction. The via element has a via size in the lateral direction. The plug size is bigger than the via size.
    Type: Application
    Filed: March 23, 2020
    Publication date: September 23, 2021
    Inventors: Dai-Ying LEE, Ming-Hsiu LEE
  • Publication number: 20210224041
    Abstract: A random number generator, a random number generating circuit, and a random number generating method are provided. The random number generating circuit includes the random number generator and executes the random number generating method. The random number generator includes a shift register having N storage elements and a combinational logic circuit. The N storage elements receive a random seed in a static state and repetitively perform a bit shift operation in a plurality of clock cycles. The combinational logic circuit generates an output sequence based on the random seed and a random bitstream received from an external source.
    Type: Application
    Filed: March 3, 2020
    Publication date: July 22, 2021
    Inventors: Po-Hao TSENG, Ming-Hsiu LEE, Yu-Hsuan LIN
  • Patent number: 10970044
    Abstract: A semiconductor device for performing a sum-of-product computation and an operating method thereof are provided. The semiconductor device includes an inputting circuit, a scaling circuit, a computing memory and an outputting circuit. The inputting circuit is used for receiving a plurality of inputting signals. The inputting signals are voltages or currents. The scaling circuit is connected to the inputting circuit for transforming the inputting signals to be a plurality of compensated signals respectively. The compensated signals are voltages or currents. The computing memory is connected to the scaling circuit. The computing memory includes a plurality of computing cells and the compensated signals are applied to the computing cells respectively. The outputting circuit is connected to the computing memory for reading an outputting signals of the computing cells. The outputting signal is voltage or current.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: April 6, 2021
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Ming-Hsiu Lee, Chao-Hung Wang
  • Patent number: 10818729
    Abstract: An integrated circuit includes a three-dimensional cross-point memory having a plurality of levels of memory cells disposed in cross points of first access lines and second access lines with alternating wide and narrow regions. The manufacturing process of the three-dimensional cross-point memory includes patterning with three patterns: a first pattern to define the memory cells, a second pattern to define the first access lines, and a third pattern to define the second access lines.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: October 27, 2020
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Hsiang-Lan Lung, Erh-Kun Lai, Ming-Hsiu Lee, Chiao-Wen Yeh
  • Patent number: 10741244
    Abstract: A memory includes a memory array, multiple match lines and multiple sets of search lines. The memory array includes multiple memory cells. Each memory cell includes an output terminal, two rectifier elements and two resistor elements. The two resistor elements are configured to store two bits representing a data status. The match lines are coupled to output terminals of the memory cells respectively. Each set of search lines includes a first search line and a second search line. A first resistor element and a first rectifier element of the same memory cell are connected in series between the first search line of the same set of search lines and the output terminal. A second resistor element and a second rectifier element of the same memory cell are connected in series between the second search line of the same set of search lines and the output terminal.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: August 11, 2020
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventor: Ming-Hsiu Lee