Patents by Inventor Yuan TSENG

Yuan TSENG 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).

  • Publication number: 20190362799
    Abstract: An apparatus includes a programming circuit configured to supply a program pulse to increase a threshold voltage of a memory cell. The apparatus also includes a sensing circuit configured to determine that the threshold voltage of the memory cell satisfies a trigger threshold voltage in response to the program pulse. The apparatus further includes a damping circuit configured to increase a voltage of a bit line connected to the memory cell after initiation of and during a second program pulse in response to the threshold voltage of the memory cell satisfying the trigger threshold voltage, the second program pulse being sent by the programming circuit.
    Type: Application
    Filed: May 23, 2018
    Publication date: November 28, 2019
    Inventors: Xiang Yang, Deepanshu Dutta, Gerrit Jan Hemink, Tai-Yuan Tseng, Yan Li
  • Patent number: 10482985
    Abstract: Apparatuses, systems, methods, and computer program products for a dynamic bias voltage are presented. A monitor circuit is configured to determine whether an erase loop count of an erase operation for data word lines of an erase block satisfies a threshold. A bias circuit is configured to adjust a voltage applied to one or more dummy word lines of an erase block in response to an erase loop count for data word lines satisfying a threshold. An erase circuit is configured to perform one or more subsequent erase loops of an erase operation for data word lines with an adjusted voltage applied to one or more dummy word lines.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: November 19, 2019
    Assignee: SanDisk Technologies LLC
    Inventors: Xiang Yang, Deepanshu Dutta, Huai-Yuan Tseng
  • Patent number: 10482984
    Abstract: Apparatuses and techniques are described for optimizing a program operation in a memory device. A storage location stores programing data for each word line, such as a program voltage for a set of memory cells. The set of memory cells may be periodically evaluated to determine updated programming setting(s). In one approach, the evaluation involves repeatedly sensing the set of memory cells between a program pulse and a verify signal in a program loop. The word line voltage can be stepped down to an intermediate voltage, then ramped down at a controlled rate while repeatedly sensing the memory cells, such as to detect an upper or lower tail of a threshold voltage distribution. The position of the tail can indicate a degree of over programming and this information can be used to adjust the programming setting(s) in a subsequent program operation.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: November 19, 2019
    Assignee: SanDisk Technologies LLC
    Inventors: Xiang Yang, Huai-Yuan Tseng, Deepanshu Dutta
  • Patent number: 10468111
    Abstract: Systems and methods reduce device peak current during a read operation by charging control lines of a first set of memory cells faster than control lines of a second set of memory cells while minimizing the channel gradient formed adjacent to a selected word line to suppress occurrences of an injection read disturb in a sense line channel. For example, a first set of memory cells are in a first location relative to a selected memory cell selected for sensing, and a second set of memory cells are in a second location relative to the selected memory cell. The charge device is configured to charge the first set of memory cells and the second set of memory cells. In some aspects, a rate of charging the first set of memory cells is different from a rate of charging the second set of memory cells.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: November 5, 2019
    Assignee: SanDisk Technologies LLC
    Inventors: Xiang Yang, Huai-Yuan Tseng, Deepanshu Dutta
  • Publication number: 20190333588
    Abstract: Systems and methods reduce device peak current during a read operation by charging control lines of a first set of memory cells faster than control lines of a second set of memory cells while minimizing the channel gradient formed adjacent to a selected word line to suppress occurrences of an injection read disturb in a sense line channel. For example, a first set of memory cells are in a first location relative to a selected memory cell selected for sensing, and a second set of memory cells are in a second location relative to the selected memory cell. The charge device is configured to charge the first set of memory cells and the second set of memory cells. In some aspects, a rate of charging the first set of memory cells is different from a rate of charging the second set of memory cells.
    Type: Application
    Filed: April 30, 2018
    Publication date: October 31, 2019
    Inventors: Xiang YANG, Huai-Yuan Tseng, Deepanshu Dutta
  • Publication number: 20190318792
    Abstract: Apparatuses and techniques are described for optimizing a program operation in a memory device. A storage location stores programing data for each word line, such as a program voltage for a set of memory cells. The set of memory cells may be periodically evaluated to determine updated programming setting(s). In one approach, the evaluation involves repeatedly sensing the set of memory cells between a program pulse and a verify signal in a program loop. The word line voltage can be stepped down to an intermediate voltage, then ramped down at a controlled rate while repeatedly sensing the memory cells, such as to detect an upper or lower tail of a threshold voltage distribution. The position of the tail can indicate a degree of over programming and this information can be used to adjust the programming setting(s) in a subsequent program operation.
    Type: Application
    Filed: April 13, 2018
    Publication date: October 17, 2019
    Applicant: SanDisk Technologies LLC
    Inventors: Xiang Yang, Huai-Yuan Tseng, Deepanshu Dutta
  • Patent number: 10446406
    Abstract: A method of manufacturing a semiconductor device includes depositing a first material on a substrate, depositing on the substrate a second material that has an etch selectivity different from an etch selectively of the first material, depositing a spacer material on the first and second material, and etching the substrate using the spacer material as an etch mask to form a fin under the first material and a fin under the second material.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: October 15, 2019
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Lei-Chun Chou, Chih-Liang Chen, Chih-Ming Lai, Charles Chew-Yuen Young, Chin-Yuan Tseng, Hsin-Chih Chen, Shi Ning Ju, Jiann-Tyng Tzeng, Kam-Tou Sio, Ru-Gun Liu, Wei-Cheng Lin, Wei-Liang Lin
  • Publication number: 20190304549
    Abstract: An apparatus includes a plurality of solid-state storage elements, a plurality of control lines coupled to the plurality of solid-state storage elements, and control circuitry in communication with the plurality of control lines. The control circuitry is configured to during a first phase of a control line pre-charging stage, charge one or more unselected control lines of the plurality of control lines using a regulated charging current for a period of time based at least in part on a bias variance state associated with the plurality of control lines, and during a second phase of the control line pre-charging stage, charge the one or more unselected bit lines to an inhibit voltage level using an unregulated charging current.
    Type: Application
    Filed: March 27, 2018
    Publication date: October 3, 2019
    Inventors: Xiang YANG, Huai-yuan TSENG, Deepanshu DUTTA
  • Publication number: 20190295669
    Abstract: A circuit includes a detection circuit configured to determine a capacitance delay (RC-delay) in an initial stage of a read or program operation and to adjust timing for detecting data in a subsequent stage, or portion of a stage, of the same read or programing operation. In particular, during a program operation a detection circuit may be configured to detect a pre-charge time for a bit line and adjust a timing of subsequent verify stages of the bit line during the same program operation based on the detected pre-charge time. Additionally, a word line circuit may be configured to detect a pre-charge time for a word line during an initial stage of a read operation and adjust read timing for a subsequent portion of the same read stage, or subsequent read stage of the read operation based on the detected word line pre-charge time.
    Type: Application
    Filed: March 22, 2018
    Publication date: September 26, 2019
    Applicant: SanDisk Technologies LLC
    Inventors: Xiang Yang, Piyush Dak, Wei Zhao, Huai-Yuan Tseng, Deepanshu Dutta, Mohan Dunga
  • Patent number: 10418252
    Abstract: Methods are disclosed herein for patterning integrated circuit devices, such as fin-like field effect transistor devices. An exemplary method includes forming a material layer that includes an array of fin features, and performing a fin cut process to remove a subset of the fin features. The fin cut process includes exposing the subset of fin features using a cut pattern and removing the exposed subset of the fin features. The cut pattern partially exposes at least one fin feature of the subset of fin features. In implementations where the fin cut process is a fin cut first process, the material layer is a mandrel layer and the fin features are mandrels. In implementations where the fin cut process is a fin cut last process, the material layer is a substrate (or material layer thereof), and the fin features are fins defined in the substrate (or material layer thereof).
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: September 17, 2019
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO, LTD.
    Inventors: Chin-Yuan Tseng, Wei-Liang Lin, Hsin-Chih Chen, Shi Ning Ju, Ken-Hsien Hsieh, Yung-Sung Yen, Ru-Gun Liu
  • Publication number: 20190272871
    Abstract: Apparatuses, systems, and methods are disclosed for adjusting a programming setting such as a programming voltage of a set of non-volatile storage cells, such as an SLC NAND array. The non-volatile storage cells may be arranged into a plurality of word lines. A subset of the non-volatile storage cells may be configured to store a programming setting. An on-die controller may be configured to read the programming setting from the setting subset, and write data to the non-volatile storage cells, using the programming setting. The on-die controller may further be configured to determine that the programming setting causes suboptimal programming of one or more of the non-volatile storage cells, and in response to the determination, store a revised programming setting on the setting subset.
    Type: Application
    Filed: March 2, 2018
    Publication date: September 5, 2019
    Applicant: SanDIsk Technologies LLC
    Inventors: Xiang Yang, Huai-Yuan Tseng, Deepanshu Dutta
  • Publication number: 20190267096
    Abstract: A circuit includes selected sense circuits configured to be connected to selected bit lines and unselected sense circuits configured to be connected to unselected bit lines during a sense operation. When the sense circuit is connected to the unselected bit line during the sense operation, the sense circuit is locked out in order to reduce current consumption. However, noise from the locked out sense circuit may be transmitted to the sense circuits connected to the selected bit lines through adjacent bit line coupling. In order to reduce the effect of the noise, charge transfer from the sense node may be blocked from passing to the unselected bit lines. Or, charge may be drained from the sense node, thereby preventing the charge from passing to the unselected bit lines.
    Type: Application
    Filed: February 28, 2018
    Publication date: August 29, 2019
    Applicant: SanDisk Technologies LLC
    Inventors: Xiang Yang, Stanley Jeong, Wei Zhao, Huai-yuan Tseng, Deepanshu Dutta
  • Publication number: 20190252030
    Abstract: Disclosed herein is related to a memory device and a method of verifying a programmed status of the memory device. The memory device includes memory cells coupled to a word line. The memory device includes a controller coupled to the word line. The controller is configured to program the memory cells coupled to the word line. The controller is configured to verify a programmed status of a first subset of the memory cells coupled to the word line and a programmed status of a second subset of the memory cells coupled to the word line, based on the programmed status of the first subset of the memory cells.
    Type: Application
    Filed: April 26, 2018
    Publication date: August 15, 2019
    Inventors: Xiang Yang, Huai-Yuan Tseng, Deepanshu Dutta, Jianzhi Wu, Gerrit Jan Hemink
  • Publication number: 20190247454
    Abstract: The present invention provides compositions comprising optimized ratios of Red clover phytoestrogens as determined by a proprietary physiologically based pharmacokinetic and pharmacodynamic model. The compositions are useful for modulating, preventing or treating postmenopausal or climacteric symptoms, which include but are not limited to bone loss, bone remodeling, hot flushes and vaginal atrophy. The present invention also provides methods for modulating, preventing or treating postmenopausal or climacteric symptoms using the compositions disclosed herein.
    Type: Application
    Filed: April 5, 2019
    Publication date: August 15, 2019
    Inventors: Yun Kau TAM, Yi-Chan James LIN, Brian Duff SLOLEY, Chih-Yuan TSENG
  • Patent number: 10381083
    Abstract: A memory device and associated techniques avoid a disturb of a select gate transistor during an erase operation for memory cells in a string. During the erase operation, a channel potential gradient near the select gate transistors is reduced when the voltages of the bit line and the substrate are suitably controlled. In one approach, the voltage of the substrate at a source end of the memory string is increased to an intermediate level first before being increased to the erase voltage threshold level while the voltage of the bit line is held at a reference voltage level to delay floating the voltage of the bit line. Another approach builds off the first approach by temporarily decreasing the voltage of the bit line to a negative level before letting the voltage of the bit line to float at the same time as the voltage of the substrate is increased to the erase voltage threshold level.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: August 13, 2019
    Assignee: SanDisk Technologies LLC
    Inventors: Xiang Yang, Kun-Huan Shih, Matthias Baenninger, Huai-Yuan Tseng, Dengtao Zhao, Deepanshu Dutta
  • Publication number: 20190244673
    Abstract: Apparatuses, systems, methods, and computer program products for a dynamic bias voltage are presented. A monitor circuit is configured to determine whether an erase loop count of an erase operation for data word lines of an erase block satisfies a threshold. A bias circuit is configured to adjust a voltage applied to one or more dummy word lines of an erase block in response to an erase loop count for data word lines satisfying a threshold. An erase circuit is configured to perform one or more subsequent erase loops of an erase operation for data word lines with an adjusted voltage applied to one or more dummy word lines.
    Type: Application
    Filed: June 25, 2018
    Publication date: August 8, 2019
    Applicant: SanDisk Technologies LLC
    Inventors: XIANG YANG, DEEPANSHU DUTTA, HUAI-YUAN TSENG
  • Patent number: 10366739
    Abstract: A circuit includes selected sense circuits configured to be connected to selected bit lines and unselected sense circuits configured to be connected to unselected bit lines during a sense operation. A voltage supply circuit may supply a selected pulse and an unselected pulse to the selected and unselected sense circuits. The selected sense circuits may pass the selected pulse to associated charge-storing circuits, and reject the unselected pulse. The unselected sense circuits may pass the unselected pulse to associated charge-storing circuits, and reject the selected pulse. In addition, voltage-setting circuitry may set sense voltages in the unselected sense circuits to a pre-sense level that matches the pre-sense level of communication voltages in the unselected sense circuits.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: July 30, 2019
    Assignee: SanDisk Technologies LLC
    Inventors: Anirudh Amarnath, Tai-Yuan Tseng
  • Patent number: 10366729
    Abstract: A sense circuit is provided in which the threshold voltage of a memory cell is sensed relative to two different levels using a single control gate voltage on the memory cell. These two levels can be lower and higher verify voltages of a data state in a programming operation, or two read levels of a read operation. A sense node is charged up to a peak level by a pre-charge voltage and by capacitive coupling. The sense node then discharges into the bit line. The sense node voltage is decreased first and second times by capacitive coupling after which first and second bits of data are output based on a level of the sense node. The first and second bits indicate a level of the sense node relative to the lower and higher verify voltages, respectively.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: July 30, 2019
    Assignee: SanDisk Technologies LLC
    Inventors: Tai-Yuan Tseng, Anirudh Amarnath
  • Publication number: 20190179532
    Abstract: An apparatus includes a first processor that generates first control signals to control a first circuit to perform memory operations on memory cells. A first number of first physical signal lines delivers the first control signals to a conversion circuit. A second number of second physical signal lines delivers converted control signals to the first circuit. The conversion circuit is coupled by the first number of first physical signal lines to the first processor and by the second number of second physical signal lines to the first circuit. The conversion circuit converts the first control signals to the converted control signals, and outputs the converted control signals to the first circuit. The first number of first physical signal lines is less than the second number of second physical signal lines to reduce the first number of first physical signal lines coupled between the first processor and the first circuit.
    Type: Application
    Filed: June 8, 2018
    Publication date: June 13, 2019
    Applicant: SANDISK TECHNOLOGIES LLC
    Inventors: Tai-Yuan Tseng, Hiroyuki Mizukoshi, Chi-Lin Hsu, Yan Li
  • Publication number: 20190179568
    Abstract: An apparatus is provided that includes a processor and an instruction memory including a first memory, a second memory, a third memory and an instruction selector circuit. The first memory is configured to receive a first instruction address from the processor, the second memory is configured to receive the first instruction address from the processor and generate a control signal based on the received first instruction address, and the third memory is configured to receive the first instruction address from the processor. The instruction selector circuit is configured to selectively send an instruction from one of the first memory and the third memory based on the control signal to the processor, and to selectively enable and disable the third memory to reduce power consumption of the instruction memory.
    Type: Application
    Filed: June 22, 2018
    Publication date: June 13, 2019
    Applicant: SANDISK TECHNOLOGIES LLC
    Inventors: Chi-Lin Hsu, Tai-Yuan Tseng, Yan Li, Hiroyuki Mizukoshi