Patents by Inventor Li-Wei Chu

Li-Wei Chu 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: 12293785
    Abstract: A circuit module with reliable margin configuration, may include a main circuit, a first auxiliary circuit and a second auxiliary circuit. When the first auxiliary circuit is on, the second auxiliary circuit may be on or off according to whether a control signal is of a first level or a second level. When the first auxiliary circuit and the second auxiliary circuit are both on, the first auxiliary circuit and the second auxiliary circuit may jointly cause an operation parameter of the main circuit to be a first value. When the first auxiliary circuit is on and the second auxiliary circuit is off, the first auxiliary circuit may cause the operation parameter to be a second value. An operation margin of the main circuit may cover a range between the first value and the second value.
    Type: Grant
    Filed: February 16, 2024
    Date of Patent: May 6, 2025
    Assignee: M31 TECHNOLOGY CORPORATION
    Inventors: Li-Wei Chu, Nan-Chun Lien
  • Publication number: 20250132558
    Abstract: The present disclosure provides a semiconductor device and an electrostatic discharge (ESD) clamp circuit. The semiconductor device includes a voltage divider, a cascoded inverter, and a discharge circuit. The voltage divider is electrically coupled between a power supply voltage and an output voltage of the semiconductor device. The cascoded inverter is electrically coupled to the voltage divider. The discharge circuit is electrically coupled to the cascoded inverter. The cascoded inverter is configured to turn on the discharge circuit o discharge an electrostatic discharge (ESD) current in response to an ESD event occurring on the power supply voltage or the output voltage when the semiconductor device is in an ESD mode.
    Type: Application
    Filed: October 18, 2023
    Publication date: April 24, 2025
    Inventors: LI-WEI CHU, WUN-JIE LIN
  • Publication number: 20250133838
    Abstract: The present disclosure provides a semiconductor device and an electrostatic discharge (ESD) clamp circuit. The semiconductor device includes a first resistance-capacitance (RC) timer circuit, a second RC timer circuit, a voltage pull-down circuit, a voltage pull-up circuit, a discharge circuit, and a discharge control circuit. The first RC timer circuit is coupled between a first power supply voltage and a reference voltage. The second RC timer circuit is coupled between a second power supply voltage and the reference voltage. The voltage pull-up circuit is coupled between the second power supply voltage and the reference voltage through a first resistor. The discharge circuit is coupled between the second power supply voltage and the reference voltage. The discharge control circuit is coupled between a third node and the reference voltage, and controls the discharge circuit using a first voltage generated by the first RC timer circuit.
    Type: Application
    Filed: October 19, 2023
    Publication date: April 24, 2025
    Inventors: LI-WEI CHU, WUN-JIE LIN
  • Publication number: 20250125611
    Abstract: In some aspects of the present disclosure, an electrostatic discharge (ESD) protection circuit is disclosed. In some aspects, the ESD protection circuit includes a first transistor coupled to a pad, a second transistor coupled between the first transistor and ground, a stack of transistors coupled to the first transistor, and an ESD clamp coupled between the stack of transistors and the ground.
    Type: Application
    Filed: December 20, 2024
    Publication date: April 17, 2025
    Applicant: Taiwan Semiconductor Manufacturing Company Ltd.
    Inventors: Li-Wei Chu, Tao Yi Hung, Chia-Hui Chen, Wun-Jie Lin, Jam-Wem Lee
  • Publication number: 20250107244
    Abstract: A semiconductor device includes a first diode having a first cathode and a first anode, wherein the first cathode is floating. The semiconductor device includes a second diode having a second cathode and a second anode, wherein the first anode is coupled to the second anode with the second cathode connected to a first supply voltage. The semiconductor device includes a third diode having a third cathode and a third anode, wherein the third cathode is connected to the first anode at an input/output pin, with the third anode connected to a second supply voltage. The second anode is coupled to a circuit that is powered by the first supply voltage and the second supply voltage. The first diode has a first size and the second diode has a second size, and the first size is substantially greater than the second size.
    Type: Application
    Filed: September 25, 2023
    Publication date: March 27, 2025
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Li-Wei Chu, Jam-Wem Lee, Wun-Jie Lin, Shou Ming Liu
  • Publication number: 20250087257
    Abstract: A circuit module with improved timing control, may comprise a functional circuit, a control circuit, a main auxiliary circuit and an additional auxiliary circuit. The control circuit may control operation timing of the functional circuit according to response characteristics of a first node. When enabled, the main auxiliary circuit may provide main conduction path(s) between the first node and a base node. Respectively when enabled and disabled, the additional auxiliary circuit may provide and not provide additional conduction path(s) between the first node and the base node. When the control circuit controls the operation timing of the functional circuit, the main auxiliary circuit may be enabled, and the additional auxiliary circuit may be disabled or enabled according to whether a mode signal is of a first mode level or a second level.
    Type: Application
    Filed: September 10, 2024
    Publication date: March 13, 2025
    Inventors: Po-Yu WU, Li-Wei Chu, Nan-Chun Lien
  • Publication number: 20250038524
    Abstract: Devices, circuits, and methods for electrostatic discharge (ESD) protection are provided. An electrostatic discharge (ESD) protection circuit comprises a first transistor connected between a first voltage and a second voltage, and a first control circuit connected between the first voltage and the second voltage, and configured to supply a control signal to the first transistor. The circuit further comprises a second transistor connected between the second voltage and a third voltage, and a second control circuit connected between the second voltage and the third voltage, and configured to supply a control signal to the second transistor. The first control circuit and the second control circuit are connected to each other via a first interconnect and a second interconnect. The first and second transistors are configured to turn on in response to an ESD event.
    Type: Application
    Filed: July 26, 2023
    Publication date: January 30, 2025
    Inventors: Jam-Wem Lee, Wun-Jie Lin, Chia-Jung Chang, Li-Wei Chu
  • Patent number: 12191655
    Abstract: In some aspects of the present disclosure, an electrostatic discharge (ESD) protection circuit is disclosed. In some aspects, the ESD protection circuit includes a first transistor coupled to a pad, a second transistor coupled between the first transistor and ground, a stack of transistors coupled to the first transistor, and an ESD clamp coupled between the stack of transistors and the ground.
    Type: Grant
    Filed: November 20, 2023
    Date of Patent: January 7, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Li-Wei Chu, Tao Yi Hung, Chia-Hui Chen, Wun-Jie Lin, Jam-Wem Lee
  • Publication number: 20240405012
    Abstract: An electrostatic discharge (ESD) protection cell region (of a semiconductor device) includes a resistor-diode ladder and a power clamp circuit coupled in parallel between a first power rail PR1 and a second power rail PR2. The resistor-diode ladder is also coupled between an input/output (I/O) pad of the semiconductor device and core circuitry of the semiconductor device. The resistor-diode ladder includes: a first diode coupled between a first node and the first power rail; a first resistor coupled between the first node and a second node; a second diode coupled between the second node and the first power rail; a third diode coupled between the first node and the second power rail; and a fourth diode coupled between the second node and the second power rail. The first node is coupled to the I/O pad. The resistor-diode ladder is coupled between the I/O pad and the core circuitry.
    Type: Application
    Filed: November 9, 2023
    Publication date: December 5, 2024
    Inventors: Li-Wei ChU, Jam-Wem LEE, Wun-Jie LIN, Shou Ming LIU
  • Publication number: 20240387507
    Abstract: A method of making a semiconductor device includes manufacturing lines extending in a first direction over doped zones in a substrate, wherein each of the lines has a line width measured along a first direction. The method further includes trimming the lines into line segments having ends over an isolation structure. The method further includes etching a transistor gate electrode over the substrate, wherein transistor gate electrode has a gate electrode width measured along the first direction, and the line width is substantially similar to the gate electrode width.
    Type: Application
    Filed: July 30, 2024
    Publication date: November 21, 2024
    Inventors: Li-Wei CHU, Wun-Jie LIN, Yu-Ti SU, Ming-Fu TSAI, Jam-Wem LEE
  • Publication number: 20240379759
    Abstract: A semiconductor device includes a first transistor, a second transistor, a first metal silicide layer, a second metal silicide layer, and an isolation structure. The first transistor includes a first channel layer, a first gate structure, and first source/drain epitaxy structures. The second transistor includes a second channel layer, a second gate structure, and second source/drain epitaxy structures. The first metal silicide layer is over one of the first source/drain epitaxy structures. The second metal silicide layer is over one of the second source/drain epitaxy structures. The isolation structure covers the one of the first source/drain epitaxy structures and the one of the second source/drain epitaxy structures, wherein in a cross-sectional view, the one of the first source/drain epitaxy structures is separated from the isolation structure through the first metal silicide layer, while the one of the second source/drain epitaxy structures is in contact with the isolation structure.
    Type: Application
    Filed: May 10, 2023
    Publication date: November 14, 2024
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Wei-Yip LOH, Li-Wei CHU, Hong-Mao LEE, Hung-Chang HSU, Hung-Hsu CHEN, Harry CHIEN, Chih-Wei CHANG
  • Publication number: 20240347531
    Abstract: An electrostatic discharge (ESD) protection device having a source region coupled to a first electrical node, a first drain region coupled to a second electrical node different from the first electrical node, and an extended drain region between the source region and the first drain region. The extended drain region includes a number N of electrically floating doped regions and a number M of gate regions coupled to the second electrical node, where N and M are integers greater than 1 and N is equal to M. Each electrically floating doped region of the N number of floating doped regions alternates with each gate region of the M number of gate regions.
    Type: Application
    Filed: June 27, 2024
    Publication date: October 17, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Po-Lin PENG, Han-Jen YANG, Jam-Wem LEE, Li-Wei CHU
  • Patent number: 12100702
    Abstract: A method of making a semiconductor device includes manufacturing doped zones in a first semiconductor material over a substrate. The method further includes forming an isolation structure between adjacent doped zones of the first semiconductor material. The method further includes manufacturing lines extending in a first direction over the doped zones of the first semiconductor material, wherein each of the lines has a line width measured along a second direction perpendicular to the first direction. The method further includes trimming the lines into line segments having ends over the isolation structure. The method further includes etching a transistor gate electrode over the substrate, wherein transistor gate electrode has a gate electrode width measured along the second direction, and wherein the line width is substantially similar to the gate electrode width.
    Type: Grant
    Filed: October 18, 2023
    Date of Patent: September 24, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Li-Wei Chu, Wun-Jie Lin, Yu-Ti Su, Ming-Fu Tsai, Jam-Wem Lee
  • Patent number: 12080368
    Abstract: A circuit module with improved line load, may comprise a first line, a first switch, a second line, a second switch and a second driver. The first switch may be on and off to conduct and stop conducting between the first line and a first node. The second switch may be on and off to conduct and stop conducting between the second line and the first node. The second driver, coupled to the second line, may be enabled to drive the second line according to a voltage of a second node, and may be disabled to stop driving the second line. The voltage of the second node may be controlled by a voltage of the first node. When the first switch is on, the second switch may be off. When the second switch is off, the second driver may be enabled.
    Type: Grant
    Filed: July 12, 2023
    Date of Patent: September 3, 2024
    Assignee: M31 TECHNOLOGY CORPORATION
    Inventors: Nan-Chun Lien, Li-Wei Chu, Ting-Wei Chang
  • Patent number: 12051896
    Abstract: A device is disclosed herein. The device includes a bias generator, an ESD driver, and a logic circuit. The bias generator includes a first transistor. The ESD driver includes a second transistor and a third transistor coupled to each other in series. The logic circuit is configured to generate a logic control signal. When the first transistor is turned on by a detection signal, the first transistor is turned off.
    Type: Grant
    Filed: May 24, 2023
    Date of Patent: July 30, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Po-Lin Peng, Yu-Ti Su, Chia-Wei Hsu, Ming-Fu Tsai, Shu-Yu Su, Li-Wei Chu, Jam-Wem Lee, Chia-Jung Chang, Hsiang-Hui Cheng
  • Patent number: 12051691
    Abstract: An electrostatic discharge (ESD) protection device having a source region coupled to a first electrical node, a first drain region coupled to a second electrical node different from the first electrical node, and an extended drain region between the source region and the first drain region. The extended drain region includes a number N of electrically floating doped regions and a number M of gate regions coupled to the second electrical node, where N and M are integers greater than 1 and N is equal to M. Each electrically floating doped region of the N number of floating doped regions alternates with each gate region of the M number of gate regions.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: July 30, 2024
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Po-Lin Peng, Han-Jen Yang, Jam-Wem Lee, Li-Wei Chu
  • Publication number: 20240222363
    Abstract: A semiconductor device includes a first diode, a second diode, a clamp circuit and a third diode. The first diode is coupled between an input/output (I/O) pad and a first voltage terminal. The second diode is coupled with the first diode, the I/O pad and a second voltage terminal. The clamp circuit is coupled between the first voltage terminal and the second voltage terminal. The second diode and the clamp circuit are configured to direct a first part of an electrostatic discharge (ESD) current flowing between the I/O pad and the first voltage terminal. The third diode, coupled to the first voltage terminal, and the second diode include a first semiconductor structure configured to direct a second part of the ESD current flowing between the I/O pad and the first voltage terminal.
    Type: Application
    Filed: March 14, 2024
    Publication date: July 4, 2024
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Po-Lin PENG, Li-Wei CHU, Ming-Fu TSAI, Jam-Wem LEE, Yu-Ti SU
  • Publication number: 20240185912
    Abstract: A circuit module with reliable margin configuration, may include a main circuit, a first auxiliary circuit and a second auxiliary circuit. When the first auxiliary circuit is on, the second auxiliary circuit may be on or off according to whether a control signal is of a first level or a second level. When the first auxiliary circuit and the second auxiliary circuit are both on, the first auxiliary circuit and the second auxiliary circuit may jointly cause an operation parameter of the main circuit to be a first value. When the first auxiliary circuit is on and the second auxiliary circuit is off, the first auxiliary circuit may cause the operation parameter to be a second value. An operation margin of the main circuit may cover a range between the first value and the second value.
    Type: Application
    Filed: February 16, 2024
    Publication date: June 6, 2024
    Inventors: Li-Wei CHU, Nan-Chun LIEN
  • Publication number: 20240178216
    Abstract: A semiconductor device is provided, including a first doped region of a first conductivity type configured as a first terminal of a first diode, a second doped region of a second conductivity type configured as a second terminal of the first diode, wherein the first and second doped regions are coupled to a first voltage terminal; a first well of the first conductivity type surrounding the first and second doped regions in a layout view; a third doped region of the first conductivity type configured as a first terminal, coupled to an input/output pad, of a second diode; and a second well of the second conductivity type surrounding the third doped region in the layout view. The second and third doped regions, the first well, and the second well are configured as a first electrostatic discharge path between the I/O pad and the first voltage terminal.
    Type: Application
    Filed: February 7, 2024
    Publication date: May 30, 2024
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Po-Lin PENG, Li-Wei CHU, Ming-Fu TSAI, Jam-Wem LEE, Yu-Ti SU
  • Publication number: 20240145460
    Abstract: An integrated circuit includes a T-coil circuit, a silicon-controlled rectifier (SCR), and a signal-loss prevention circuit. The T-coil circuit is coupled to an input/output (I/O) pad and an internal circuit. The SCR is coupled to the T-coil circuit and the internal circuit. The signal-loss prevention circuit is coupled to the T-coil circuit and the SCR. The signal-loss prevention circuit includes a resistor coupled to the T-coil circuit and the SCR. An electrostatic current flows through the resistor and turns on the SCR. The signal-loss prevention circuit may also include a diode circuit coupled to the T-coil circuit and the SCR. The diode circuit is configured to prevent signal loss.
    Type: Application
    Filed: January 3, 2024
    Publication date: May 2, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wei-Min WU, Ming-Dou KER, Chun-Yu LIN, Li-Wei CHU