Patents by Inventor Szu-Lin LIU

Szu-Lin LIU 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: 20240387522
    Abstract: A semiconductor device includes a bipolar junction transistor (BJT) structure including emitters in a first well having a first conductive type, collectors in respective second wells, the second wells having a second conductive type different from the first conductive type and being spaced apart from each other with the first well therebetween, and bases in the first well and between the emitters and the collectors. The BJT structure includes active regions having different widths that form the emitters, the collectors, and the bases.
    Type: Application
    Filed: July 30, 2024
    Publication date: November 21, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chia-Chung CHEN, Szu-Lin LIU, Jaw-Juinn HORNG, Hui-Zhong ZHUANG, Chih-Liang CHEN, Ya Yun LIU
  • Publication number: 20240364315
    Abstract: A semiconductor device includes a temperature-independent current generator that generates a reference current substantially independent of temperature and a mirror current that is a substantial duplicate of the reference current, a pulse signal generator that samples the mirror current so as to generate a pulse signal, and a counter that obtains a number of pulse signals generated by the pulse signal generator, that permits the pulse signal generator to generate a pulse signal when it is determined thereby that the number of pulse signals obtained thereby is less than a predetermined threshold value, and that inhibits the pulse signal generator from generating a pulse signal when it is determined thereby that the number of pulse signals obtained thereby is equal to the predetermined threshold value. A method for monitoring a temperature of the semiconductor device is also disclosed.
    Type: Application
    Filed: July 12, 2024
    Publication date: October 31, 2024
    Inventors: Szu-Lin Liu, Bei-Shing Lien, Yi-Wen Chen, Chin-Ho Chang, Jaw-Juinn Horng, Yung-Chow Peng
  • Publication number: 20240338044
    Abstract: An integrated circuit includes a first temperature-sensitive device configured to generate a first voltage, a second temperature-sensitive device configured to generate a second voltage, and an output terminal configured to generate a reference voltage which is a summation of the first voltage and the second voltage. The first voltage monotonically increases with an absolute temperature. The second voltage monotonically decreases with the absolute temperature. In the integrated circuit, a low-dropout regulator has a first input connected to the output terminal and an output connected to the gate of a power regulating transistor. The channel of the power regulating transistor is connected between a first terminal configured to receive a first supply voltage and a second terminal configured to generate a second supply voltage.
    Type: Application
    Filed: October 4, 2023
    Publication date: October 10, 2024
    Inventors: Bei-Shing LIEN, Szu-Lin LIU
  • Patent number: 12099792
    Abstract: An electromigration (EM) sign-off methodology that utilizes a system for analyzing an integrated circuit design layout to identify heat sensitive structures, self-heating effects, heat generating structures, and heat dissipating structures. The EM sign-off methodology includes a memory and a processor configured for calculating adjustments of an evaluation temperature for a heat sensitive structure by calculating the effects of self-heating within the temperature sensitive structure as well as additional heating and/or cooling as a function of thermal coupling to surrounding heat generating structures and/or heat dissipating elements located within a defined thermal coupling volume or range of the heat sensitive structures.
    Type: Grant
    Filed: June 26, 2023
    Date of Patent: September 24, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Hsien Yu Tseng, Amit Kundu, Chun-Wei Chang, Szu-Lin Liu, Sheng-Feng Liu
  • Patent number: 12101091
    Abstract: A method includes fabricating a first transistor and a second transistor on a substrate and fabricating a first conducting line and a second conducting line in a first metal layer. The method also includes connecting a gate of the first transistor to the first conducting line and connecting a gate of the second transistor to the second conducting line. The first conducting line and the second conducting line are parallel and adjacent to each other in the first metal layer above the first transistor and the second transistor. The method still includes connecting a source and a drain of the first transistor to a third conducting line.
    Type: Grant
    Filed: April 25, 2023
    Date of Patent: September 24, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Szu-Lin Liu, Jaw-Juinn Horng, Yi-Hsiang Wang, Wei-Lin Lai
  • Patent number: 12068747
    Abstract: A semiconductor device includes a temperature-independent current generator that generates a reference current substantially independent of temperature and a mirror current that is a substantial duplicate of the reference current, a pulse signal generator that samples the mirror current so as to generate a pulse signal, and a counter that obtains a number of pulse signals generated by the pulse signal generator, that permits the pulse signal generator to generate a pulse signal when it is determined thereby that the number of pulse signals obtained thereby is less than a predetermined threshold value, and that inhibits the pulse signal generator from generating a pulse signal when it is determined thereby that the number of pulse signals obtained thereby is equal to the predetermined threshold value. A method for monitoring a temperature of the semiconductor device is also disclosed.
    Type: Grant
    Filed: April 12, 2022
    Date of Patent: August 20, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Szu-Lin Liu, Bei-Shing Lien, Yi-Wen Chen, Chin-Ho Chang, Jaw-Juinn Horng, Yung-Chow Peng
  • Publication number: 20240266247
    Abstract: An IC device includes a heat transfer structure electrically isolated from a resistor. The resistor includes first and second metal segments extending in a first direction in a first metal layer and a third metal segment extending perpendicular to the first direction in a second metal layer below the first metal layer, the third metal segment electrically connecting the first and second metal segments to each other. The heat transfer structure includes fourth and fifth metal segments extending in the first direction in the first metal layer adjacent to the first and second metal segments, sixth and seventh metal segments extending in the second direction in the second metal layer, each of the sixth and seventh metal segments electrically connecting the fourth and fifth metal segments to each other, and a thermally conductive path extending from the sixth or seventh metal segment to an underlying active area.
    Type: Application
    Filed: March 25, 2024
    Publication date: August 8, 2024
    Inventors: Jaw-Juinn HORNG, Szu-Lin LIU, Wei-Lin LAI
  • Publication number: 20240249991
    Abstract: A semiconductor structure includes a substrate having a front side and a back side, one or more dielectric layers over the front side, and a conductive structure. The one or more dielectric layers include a thermal sensor region and two dummy regions sandwiching the thermal sensor region along a second direction from a top view. The thermal sensor region and the two dummy regions extend longitudinally along a first direction generally perpendicular to the second direction from the top view. The conductive structure is embedded in the thermal sensor region of the one or more dielectric layers. The conductive structure includes conductive lines parallel to each other and extending longitudinally along the first direction, and conductive bars and vias electrically connecting the conductive lines. The conductive lines in a same dielectric layer of the one or more dielectric layers are electrically connected one by one zigzaggedly from the top view.
    Type: Application
    Filed: January 19, 2023
    Publication date: July 25, 2024
    Inventors: Yu-Hsiang Chen, Hsiu-Wen Hsueh, Szu-Lin Liu, Wen-Sheh Huang, Chloe Hsin-Yi Chen, Wei-Lin Lai
  • Patent number: 11990469
    Abstract: A trimmable resistor circuit and a method for operating the trimmable resistor circuit are provided. The trimmable resistor circuit includes first sources/drains and first gate structures alternatively arranged in a first row, second sources/drains and second gate structures alternatively arranged in a second row, third sources/drains and third gate structures alternatively arranged in a third row, first resistors disposed between the first row and the second row, and second resistors disposed between the second row and the third row. In the method for operating the trimmable resistor circuit, the first gate structures in the first row and the third gate structures in the third row are turned on. Then, the second gate structures in the second row are turned on/off according to a predetermined resistance value.
    Type: Grant
    Filed: December 15, 2022
    Date of Patent: May 21, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Szu-Lin Liu, Jaw-Juinn Horng
  • Patent number: 11942392
    Abstract: An IC device includes first and second resistors. The first resistor includes first and second metal segments extending in a first direction in a first metal layer, and a third metal segment extending in a second direction in a second metal layer, and electrically connecting the first and second metal segments. The second resistor includes fourth and fifth metal segments extending in the first direction in the first metal layer, and a sixth metal segment extending in the second direction in a third metal layer, and electrically connecting the fourth and fifth metal segments. The fourth and fifth metal segment have a width greater than a width of the first and second metal segments, the fourth metal segment is between the first and second metal segments and separated from the first metal segment by a distance, and a fourth and fifth metal segment separation is greater than the distance.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: March 26, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Jaw-Juinn Horng, Szu-Lin Liu, Wei-Lin Lai
  • Patent number: 11901463
    Abstract: A method includes implanting a first dopant having a first dopant type into a substrate to define a plurality of source/drain (S/D) regions. The method further includes implanting a second dopant having the first dopant type into the substrate to define a channel region between adjacent S/D regions of the plurality of S/D regions, wherein a dopant concentration of the second dopant in the channel region is less than half of a dopant concentration of the first dopant in each of the plurality of S/D regions. The method further includes forming a gate stack over the channel region. The method further includes electrically coupling each of the plurality of S/D regions together.
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: February 13, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Szu-Lin Liu, Jaw-Juinn Horng
  • Publication number: 20230384170
    Abstract: Disclosed herein are related to a device and a method for sensing a temperature. In one aspect, the device includes a first resistor including a first metal rail in a first layer. The first metal rail may have a first thermal-resistance coefficient. In one aspect, the device includes a second resistor including a second metal rail in a second layer above the first layer along a direction. The second metal rail may have a second thermal-resistance coefficient. In one aspect, the device includes a sensing circuit coupled to the first resistor and the second resistor. The sensing circuit may be configured to determine a temperature, according to the first metal rail having the first thermal-resistance coefficient and the second metal rail having the second thermal-resistance coefficient.
    Type: Application
    Filed: February 16, 2023
    Publication date: November 30, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Szu-Lin Liu, Wei-Lin Lai, Bei-Shing Lien
  • Publication number: 20230387329
    Abstract: A method includes implanting a first dopant having a first dopant type into a substrate to define a plurality of source/drain (S/D) regions. The method further includes implanting a second dopant having the first dopant type into the substrate to define a channel region between adjacent S/D regions of the plurality of S/D regions, wherein a dopant concentration of the second dopant in the channel region is less than half of a dopant concentration of the first dopant in each of the plurality of S/D regions. The method further includes forming a gate stack over the channel region. The method further includes electrically coupling each of the plurality of S/D regions together.
    Type: Application
    Filed: August 9, 2023
    Publication date: November 30, 2023
    Inventors: Szu-Lin LIU, Jaw-Juinn HORNG
  • Publication number: 20230358618
    Abstract: A device including a first plurality of metal-oxide semiconductor field-effect transistors electrically connected in series. Each of the first plurality of metal-oxide semiconductor field-effect transistors includes a first gate structure, a first drain/source region on one side of the first gate structure, and a second drain/source region on another side of the first gate structure. The first gate structure of each of the first plurality of metal-oxide semiconductor field-effect transistors is configured to receive a bias voltage to bias on the first plurality of metal-oxide semiconductor field-effect transistors and provide a temperature dependent resistance through the first plurality of metal-oxide semiconductor field-effect transistors to measure temperatures.
    Type: Application
    Filed: May 3, 2022
    Publication date: November 9, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jaw-Juinn Horng, Szu-Lin Liu, Yung-Chow Peng, Shenggao LI
  • Patent number: 11810813
    Abstract: A system for designing a temperature sensor arrangement includes a processor and a non-transitory computer readable medium, including instructions, connected to the processor. The processor is configured to execute the instructions for designing a sensor array, the sensor array includes a first transistor of a first device, and a plurality of second transistors of a second device. The processor is configured to execute the instructions for designing a guard ring region between the sensor array and another circuit of an integrated circuit, the guard ring region includes a transistor structure. The processor is configured to execute the instructions for designing a thermally conductive element between the sensor array and the guard ring region, the thermally conductive element is connected to the transistor structure, the first transistor and each of the plurality of second transistors. The processor is configured to execute the instructions for generating the temperature sensor arrangement.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: November 7, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Jaw-Juinn Horng, Szu-Lin Liu
  • Publication number: 20230343785
    Abstract: A method of manufacturing an integrated circuit (IC) device includes forming a metal oxide semiconductor (MOS) transistor including a first gate and first and second source/drain (S/D) regions, the first and second S/D regions having a first doping type and being formed in a substrate region having a second doping type different from the first doping type, forming a guard ring structure surrounding the MOS transistor, the guard ring structure including a second gate and first and second heavily doped regions, the first and second heavily doped regions being formed in the substrate region and having the second doping type, and constructing a first electrical connection between the first and second gates.
    Type: Application
    Filed: June 28, 2023
    Publication date: October 26, 2023
    Inventors: Yi-Hsiang WANG, Szu-Lin LIU, Jaw-Juinn HORNG, Yung-Chow PENG
  • Publication number: 20230334220
    Abstract: An electromigration (EM) sign-off methodology that utilizes a system for analyzing an integrated circuit design layout to identify heat sensitive structures, self-heating effects, heat generating structures, and heat dissipating structures. The EM sign-off methodology includes a memory and a processor configured for calculating adjustments of an evaluation temperature for a heat sensitive structure by calculating the effects of self-heating within the temperature sensitive structure as well as additional heating and/or cooling as a function of thermal coupling to surrounding heat generating structures and/or heat dissipating elements located within a defined thermal coupling volume or range of the heat sensitive structures.
    Type: Application
    Filed: June 26, 2023
    Publication date: October 19, 2023
    Inventors: Hsien Yu TSENG, Amit KUNDU, Chun-Wei CHANG, Szu-Lin LIU, Sheng-Feng LIU
  • Publication number: 20230268911
    Abstract: A method includes fabricating a first transistor and a second transistor on a substrate and fabricating a first conducting line and a second conducting line in a first metal layer. The method also includes connecting a gate of the first transistor to the first conducting line and connecting a gate of the second transistor to the second conducting line. The first conducting line and the second conducting line are parallel and adjacent to each other in the first metal layer above the first transistor and the second transistor. The method still includes connecting a source and a drain of the first transistor to a third conducting line.
    Type: Application
    Filed: April 25, 2023
    Publication date: August 24, 2023
    Inventors: Szu-Lin LIU, Jaw-Juinn HORNG, Yi-Hsiang WANG, Wei-Lin LAI
  • Patent number: 11709200
    Abstract: A method of calibrating a thermal sensor device is provided. The method includes extracting an incremental voltage to temperature curve for a diode array from a first incremental voltage of the diode array at a first temperature. The diode array and a device under test (DUT) which includes a thermal sensor are heated. After heating the diode array, a first incremental temperature is determined from the incremental voltage to temperature curve for the diode array and a second incremental voltage of the diode array after heating the diode array. An incremental voltage to temperature curve is extracted for the DUT from the first incremental temperature, a first incremental voltage for the DUT at the first temperature, and a second incremental voltage of the DUT after heating the device under test. A temperature error for the thermal sensor is determined from the incremental voltage to temperature curve for the DUT.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: July 25, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Szu-Lin Liu, Jaw-Juinn Horng
  • Publication number: 20230231554
    Abstract: A method (of decoupling from voltage variations in a first voltage drop between first and second reference voltage rails) includes: electrically coupling one or more components to form a decoupling capacitance (decap) circuit; electrically coupling one or more components to form a filtered biasing circuit; and making an unswitched series electrical coupling of the decap circuit and the filtered biasing circuit between the first and second reference voltage rails.
    Type: Application
    Filed: March 13, 2023
    Publication date: July 20, 2023
    Inventors: Szu-Lin LIU, Yi-Hsiang WANG, Jaw-Juinn HORNG