Patents by Inventor Wei Min Chan

Wei Min Chan 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: 20190139600
    Abstract: A static random access memory (SRAM) includes a bit cell that includes a p-type pass gate, a bit information path connected to the bit cell by the p-type pass gate, and a write multiplexer connected to the bit information path. The write multiplexer includes a p-type transistor configured to selectively couple the bit information path to a flip-flop.
    Type: Application
    Filed: January 7, 2019
    Publication date: May 9, 2019
    Inventors: Wei-Cheng WU, Wei Min CHAN, Yen-Huei CHEN, Hung-Jen LIAO, Ping-Wei WANG
  • Patent number: 10275561
    Abstract: A system includes a net-identifying module and a false path-eliminating module. The net-identifying module is configured to receive first and second electronic lists associated with a circuit unit, to identify a net of the circuit unit based on the first electronic list, and to provide a net information output that includes information associated with the net. The false path-eliminating module is coupled to the net-identifying module and is configured to eliminate a false path of the circuit unit in the second electronic list based on the net information output.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: April 30, 2019
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Chun-Jiun Dai, Hung-Jen Liao, Wei-Min Chan, Yen-Huei Chen
  • Patent number: 10268787
    Abstract: A hybrid timing analysis method includes: receiving a pre-layout netlist, a post-layout netlist and a configuration file associated with an integrated circuit design; generating a first measurement script and an input stimulus waveform file according to the configuration file; performing a first dynamic timing analysis upon the pre-layout netlist by using the first measurement script and the input stimulus waveform file to generate a pre-layout simulation result; identifying at least one data path and at least one clock path according to the pre-layout simulation result; generating a second measurement script according to the at least on data path and at least one clock path; and performing a second dynamic timing analysis upon the post-layout netlist by using the second measurement script and the input stimulus waveform file to generate a first post-layout simulation result. Associated system and non-transitory computer readable medium are also provided.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: April 23, 2019
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Chun-Jiun Dai, Wei Min Chan, Yen-Huei Chen, Hung-Jen Liao, Jonathan Tsung-Yung Chang
  • Publication number: 20190096478
    Abstract: A memory device includes a memory cell array comprising a plurality of memory cells wherein each of the plurality of memory cells is configured to be in a data state, and a physically unclonable function (PUF) generator. The PUF generator further includes a first sense amplifier, coupled to the plurality of memory cells, wherein while the plurality of memory cells are being accessed, the first sense amplifier is configured to compare accessing speeds of first and second memory cells of the plurality of memory cells, and based on the comparison, provide a first output signal for generating a first PUF signature.
    Type: Application
    Filed: November 28, 2018
    Publication date: March 28, 2019
    Inventors: Chien-Chen LIN, Wei-Min Chan, Chih-Yu Lin, Shih-Lien Linus Lu, Yen-Huei Chen
  • Publication number: 20190058603
    Abstract: A physically unclonable function (PUF) generator includes a first sense amplifier that has a first input terminal configured to receive a signal from a first memory cell of a plurality of memory cells, and a second input terminal configured to receive a signal from a second memory cell of the plurality of memory cells. The first sense amplifier is configured to compare accessing speeds of the first and second memory cells of the plurality of memory cells. Based on the comparison of the accessing speeds, the sense amplifier provides a first output signal for generating a PUF signature. A controller is configured to output an enable signal to the first sense amplifier, which has a first input terminal configured to receive a signal from a bit line of the first memory cell and a second input terminal configured to receive a signal from a bit line of the second memory cell.
    Type: Application
    Filed: July 25, 2018
    Publication date: February 21, 2019
    Inventors: Chien-Chen Lin, Wei Min Chan, Chih-Yu Lin, Shih-Lien Linus Lu
  • Publication number: 20190018917
    Abstract: The present disclosure provides a hybrid timing analysis method. The method includes: receiving a pre-layout netlist, a post-layout netlist and a configuration file associated with an integrated circuit design; generating a first measurement script and an input stimulus waveform file according to the configuration file; performing a first dynamic timing analysis upon the pre-layout netlist by using the first measurement script and the input stimulus waveform file to generate a pre-layout simulation result; identifying at least one data path and at least one clock path according to the pre-layout simulation result; generating a second measurement script according to the at least on data path and at least one clock path; and performing a second dynamic timing analysis upon the post-layout netlist by using the second measurement script and the input stimulus waveform file to generate a first post-layout simulation result. Associated system and non-transitory computer readable medium are also provided.
    Type: Application
    Filed: July 17, 2017
    Publication date: January 17, 2019
    Inventors: CHUN-JIUN DAI, WEI MIN CHAN, YEN-HUEI CHEN, HUNG-JEN LIAO, JONATHAN TSUNG-YUNG CHANG
  • Patent number: 10176864
    Abstract: A static random access memory (SRAM) includes a bit cell that receives an operating voltage and a reference voltage, and includes a p-type pass gate. A bit information path is connected to the bit cell by the p-type pass gate, and a pre-discharge circuit is connected to the bit information path. The pre-discharge circuit includes an n-type transistor that discharges the bit information path to the reference voltage.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: January 8, 2019
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Wei-Cheng Wu, Wei Min Chan, Yen-Huei Chen, Hung-Jen Liao, Ping-Wei Wang
  • Publication number: 20190004718
    Abstract: Various embodiments for configurable memory storage systems are disclosed. The configurable memory storages selectively choose an operational voltage signal from among multiple operational voltage signals to dynamically control various operational parameters. For example, the configurable memory storages selectively choose a maximum operational voltage signal from among the multiple operational voltage signals to maximize read/write speed. As another example, the configurable memory storages selectively choose a minimum operational voltage signal from among the multiple operational voltage signals to control minimize power consumption.
    Type: Application
    Filed: March 28, 2018
    Publication date: January 3, 2019
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd
    Inventors: Yu-Hao HSU, Cheng Hung Lee, Chen-Lin Yang, Chiting Cheng, Fu-An Wu, Hung-Jen Liao, Jung-Ping Yang, Jonathan Tsung-Yung Chang, Wei Min Chan, Yen-Huei Chen, Yangsyu Lin, Chien-Chen Lin
  • Patent number: 10163497
    Abstract: A three dimensional dual-port bit cell generally comprises a first portion disposed on a first tier, wherein the first portion includes a plurality of port elements. The dual-port bit cell also includes a second portion disposed on a second tier that is vertically stacked with respect to the first tier using at least one via, wherein the second portion includes a latch.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: December 25, 2018
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Wei Min Chan, Wei-Cheng Wu, Yen-Huei Chen
  • Patent number: 10153035
    Abstract: A memory device includes a memory cell array comprising a plurality of memory cells wherein each of the plurality of memory cells is configured to be in a data state, and a physically unclonable function (PUF) generator. The PUF generator further includes a first sense amplifier, coupled to the plurality of memory cells, wherein while the plurality of memory cells are being accessed, the first sense amplifier is configured to compare accessing speeds of first and second memory cells of the plurality of memory cells, and based on the comparison, provide a first output signal for generating a first PUF signature.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: December 11, 2018
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chien-Chen Lin, Wei Min Chan, Chih-Yu Lin, Shih-Lien Linus Lu, Yen-Huei Chen
  • Publication number: 20180277199
    Abstract: A device is disclosed that includes a plurality of first memory cells, a plurality of second memory cells, a power circuit, and a header circuit. The power circuit us configured to provide the first power voltage for the plurality of first memory cells, and to provide the second power voltage, that is independent from the first power voltage, for the plurality of second memory cells. The header circuit is configured to provide, during the write operation, the first voltage smaller than the first power voltage, the second power voltage, or the combination thereof, for corresponding memory cells of the plurality of first memory cells and the plurality of second memory cells.
    Type: Application
    Filed: May 29, 2018
    Publication date: September 27, 2018
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Wei-Cheng WU, Chih-Yu LIN, Kao-Cheng LIN, Wei-Min CHAN, Yen-Huei CHEN
  • Patent number: 10083257
    Abstract: A method includes determining a sampling region in a sample space, generating samples in the sampling region without generating samples outside the sampling region, and simulating a performance of a device using the generated samples as input data. The sample space is defined by a plurality of variables associated with the device. Values of the plurality of variables in the sampling region having lower probabilities to meet a specification of the device than values of the plurality of variables outside the sampling region. The method is performed at least partially by at least one processor.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: September 25, 2018
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chin-Cheng Kuo, Wei Min Chan, Wei-Yu Hu, Jui-Feng Kuan
  • Publication number: 20180190345
    Abstract: A three dimensional dual-port bit cell generally comprises a first portion disposed on a first tier, wherein the first portion includes a plurality of port elements. The dual-port bit cell also includes a second portion disposed on a second tier that is vertically stacked with respect to the first tier using at least one via, wherein the second portion includes a latch.
    Type: Application
    Filed: February 26, 2018
    Publication date: July 5, 2018
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Wei Min Chan, Wei-Cheng Wu, Yen-Huei Chen
  • Patent number: 9997235
    Abstract: A device is disclosed that includes first memory cells, second memory cells, a first conductive line and a second conductive line. The first conductive line is electrically disconnected from the second conductive line. The first conductive line receives a first power voltage for the plurality of first memory cells. The second conductive line receives a second power voltage that is independent from the first power voltage, for the plurality of second memory cells.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: June 12, 2018
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Wei-Cheng Wu, Chih-Yu Lin, Kao-Cheng Lin, Wei-Min Chan, Yen-Huei Chen
  • Publication number: 20180102163
    Abstract: A memory device includes a memory cell array comprising a plurality of memory cells wherein each of the plurality of memory cells is configured to be in a data state, and a physically unclonable function (PUF) generator. The PUF generator further includes a first sense amplifier, coupled to the plurality of memory cells, wherein while the plurality of memory cells are being accessed, the first sense amplifier is configured to compare accessing speeds of first and second memory cells of the plurality of memory cells, and based on the comparison, provide a first output signal for generating a first PUF signature.
    Type: Application
    Filed: October 7, 2016
    Publication date: April 12, 2018
    Inventors: Chien-Chen LIN, Wei-Min Chan, Chih-Yu Lin, Shih-Lien Linus Lu, Yen-Huei Chen
  • Publication number: 20180102907
    Abstract: A memory device includes a memory block that includes a plurality of memory bits, wherein each bit is configured to present a first logical state; and an authentication circuit, coupled to the plurality of memory bits, wherein the authentication circuit is configured to access a first bit under either a reduced read margin or a reduced write margin condition to determine a stability of the first bit by detecting whether the first logical state flips to a second logical state, and based on the determined stability of at least the first bit, to generate a physically unclonable function (PUF) signature.
    Type: Application
    Filed: October 7, 2016
    Publication date: April 12, 2018
    Inventors: Chien-Chen LIN, Shih-Lien Linus LU, Wei-Min CHAN
  • Publication number: 20180069711
    Abstract: A memory device includes a memory block comprises a plurality of bits, wherein at least a first bit of the plurality of bits presents an initial logic state each time it is powered on; a start-up circuit configured to power on and off the memory block N times, where N is an odd integer greater than 1, and wherein the at least first bit presents an initial state after each respective power cycle of the memory block; and an authentication circuit, coupled to the memory block, and comprising an election engine that is configured to elect an initial state that occurs (N+1)/2 or more times after N power cycles that are performed by the start-up circuit, as a majority initial logic state for the first bit.
    Type: Application
    Filed: September 8, 2016
    Publication date: March 8, 2018
    Inventors: Shih-Lien Linus LU, Wei-Min Chan, Chien-Chen Lin
  • Patent number: 9905292
    Abstract: A three dimensional dual-port bit cell generally comprises a first portion disposed on a first tier, wherein the first portion includes a plurality of port elements. The dual-port bit cell also includes a second portion disposed on a second tier that is vertically stacked with respect to the first tier using at least one via, wherein the second portion includes a latch.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: February 27, 2018
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Wei Min Chan, Wei-Cheng Wu, Yen-Huei Chen
  • Publication number: 20180023193
    Abstract: Embodiments disclosed herein generally relate to systems and methods to prevent free radical damage to sensitive components in a process chamber and optimizing flow profiles. The processing chamber utilizes a cover substrate on lift pins and an inert bottom purge flow to shield the substrate support from halogen reactants. During a clean process, the cover substrate and the purge flow restricts halogen reactants from contacting the substrate support. The method of cleaning includes placing a cover substrate on a plurality of lift pins that extend through a substrate support in a processing chamber, raising the cover substrate via the lift pins to expose a space between the cover substrate and the substrate support, supplying a halogen containing gas into the processing chamber, supplying a second gas through an opening in the processing chamber, and flowing the second gas through the space between the cover substrate and the substrate support.
    Type: Application
    Filed: July 19, 2017
    Publication date: January 25, 2018
    Inventors: Sanjeev BALUJA, Kalyanjit GHOSH, Ren-Guan DUAN, Mayur G. KULKARNI, Gregory SIU, Praket P. JHA, Deenesh PADHI, Lei GUO, Wei Min CHAN, Ajit BALAKRISHNA
  • Publication number: 20170344696
    Abstract: A system includes a net-identifying module and a false path-eliminating module. The net-identifying module is configured to receive first and second electronic lists associated with a circuit unit, to identify a net of the circuit unit based on the first electronic list, and to provide a net information output that includes information associated with the net. The false path-eliminating module is coupled to the net-identifying module and is configured to eliminate a false path of the circuit unit in the second electronic list based on the net information output.
    Type: Application
    Filed: December 2, 2016
    Publication date: November 30, 2017
    Inventors: Chun-Jiun Dai, Hung-Jen Liao, Wei-Min Chan, Yen-Huei Chen