Patents by Inventor Tsung-Cheng Liao

Tsung-Cheng Liao 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: 11961777
    Abstract: A package structure and a method of forming the same are provided. The package structure includes a first die, a second die, a first encapsulant, and a buffer layer. The first die and the second die are disposed side by side. The first encapsulant encapsulates the first die and the second die. The second die includes a die stack encapsulated by a second encapsulant encapsulating a die stack. The buffer layer is disposed between the first encapsulant and the second encapsulant and covers at least a sidewall of the second die and disposed between the first encapsulant and the second encapsulant. The buffer layer has a Young's modulus less than a Young's modulus of the first encapsulant and a Young's modulus of the second encapsulant.
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: April 16, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wei-Chih Chen, Chien-Hsun Lee, Chung-Shi Liu, Hao-Cheng Hou, Hung-Jui Kuo, Jung-Wei Cheng, Tsung-Ding Wang, Yu-Hsiang Hu, Sih-Hao Liao
  • Publication number: 20240079053
    Abstract: In one embodiment, a static random access memory (SRAM) device is provided. The SRAM device includes a memory cell, a bit line couple to the memory cell, a voltage supply line coupled to the memory cell, a control circuitry. The control circuitry is configured to charge a voltage supply line while the voltage supply line is electrically isolated from a bit line. A portion of the charge is transferred from the voltage supply line to the bit line. The voltage supply line is recharged while the voltage supply line is electrically isolated from the bit line storing the transferred portion of the charge. The memory cell is accessed using the recharge on the voltage supply line.
    Type: Application
    Filed: November 10, 2023
    Publication date: March 7, 2024
    Inventors: Mahmut Sinangil, Chiting Cheng, Hung-Jen Liao, Tsung-Yung Chang
  • Publication number: 20240028093
    Abstract: Described are system and methods for maximizing charging power to an information handling system (IHS) from a programmable power supply (PPS). The IHS and the PPS initiate communication with one another. Information is exchanged as to the capabilities of the PPS for providing charging power to battery cells of the IHS, and information as to the battery cells of the HIS. Charging power from the PPS based on the configuration and capability of the battery cells of the IHS, and charging power is kept at a maximum power throughout charging of the battery cells.
    Type: Application
    Filed: July 22, 2022
    Publication date: January 25, 2024
    Applicant: Dell Products L.P.
    Inventors: Geroncio Ong Tan, Wei Cheng Yu, Chi-Che Wu, Tsung-Cheng Liao
  • Publication number: 20240003985
    Abstract: Systems and methods that may be implemented to determine electrical characteristic/s of one or more power supply cable/s that are coupled to supply power from a power supply to a battery-powered information handling system, and to take one or more actions based on the determined electrical characteristic/s. The disclosed systems and methods may be so implemented to detect values of input voltage and input current that are provided from the power supply cable to a battery-powered information handling system, and to take one or more actions based on these detected values of input voltage and input current, such as power supply voltage compensation, protection of the power supply, alerts to the battery-powered information handling system, and/or warnings to a user of the battery-powered information handling system.
    Type: Application
    Filed: June 29, 2022
    Publication date: January 4, 2024
    Inventors: Merle Wood, III, Chin-Jui Liu, Chi-Che Wu, Tsung-Cheng Liao, Wei-Cheng Yu
  • Publication number: 20230352941
    Abstract: A method and system for supplying power at a voltage selected from a plurality of voltages. Power is initially received at a first voltage. Embodiments communicate with an AC adapter to get device identification and see if the AC adapter supports other voltages. If so, embodiments communicate with the AC adapter to get more information about the adapter and identify what voltages the adapter is capable of providing. If one of the voltages would allow an information handling system to operate more efficiently, embodiments negotiate a power supply contract to operate at a second voltage. When the information handling system powers down, the system resets to operation at the initial voltage.
    Type: Application
    Filed: April 28, 2022
    Publication date: November 2, 2023
    Inventors: Wei-Cheng Yu, Merle Jackson Wood, Tsung-Cheng Liao, Chin-Jui Liu, Andrew Thomas Sultenfuss, Chi Che Wu
  • Patent number: 11799252
    Abstract: A high-performance single barrel power connector for receiving electric power may be capable of receiving more than 330 W up to approximately 600 W of power. The V+ pin and V? pin may each be configured with a large plurality of contact points for connecting to a power plug. A connector body retaining the V+ pin and V? pin may configured with openings to expose more of the V+ pin and V? pin to air and allow the V+ pin and V? pin to extend out of the power connector for convective and conductive heat transfer. A shell having a high thermal conductivity may be connected to the V? pin and V? pin and further connected to a bracket for increased heat transfer away from the V+ and V? pins.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: October 24, 2023
    Inventors: Andrew Thomas Sultenfuss, Tsung-Cheng Liao, Wei-Cheng Yu, Chi-Che Wu
  • Publication number: 20230268699
    Abstract: The present disclosure provides embodiments of direct current (DC) power connectors and methods to manufacture the same. More specifically, the present disclosure provides a connector plug with improved power capacity and structural rigidity. The connector plug includes an inner body and an outer body coupled to transmit power through the DC power connector, wherein the inner body is concentrically arranged within the outer body, and an insulating barrel that is coupled between the inner body and the outer body to electrically isolate the inner body from the outer body. The inner body and outer body comprise a base metal or metal alloy having an electrical conductivity ranging between 30% International Annealed Copper Standard (IACS) and greater than or equal to 99% IACS.
    Type: Application
    Filed: March 17, 2023
    Publication date: August 24, 2023
    Inventors: Wei Cheng Yu, Andrew Sultenfuss, Chi Che Wu, Tsung-Cheng Liao
  • Patent number: 11726536
    Abstract: A method for increasing power supply voltage in an information handling system in a normal mode with a first peak voltage comprises, in response to receiving a request for a higher peak voltage, an embedded controller (EC) receiving information associated with the application including a request for power at a higher peak voltage, a housekeeping IC communicating a signal to a PWM IC to increase voltage supplied to the information handling system to the higher peak voltage, the PWM IC converting from the PSU to the higher peak voltage and starting a timer with a defined time period. If no additional requests for operating at the higher peak voltage are received before the time period expires, the PWM IC communicates a signal that power will stop being supplied at the higher peak voltage, and the information handling system returns to operating in the normal mode at the first peak voltage.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: August 15, 2023
    Assignee: Dell Products L.P.
    Inventors: Wu Chi Che, Wei-Cheng Yu, Edward Douglas Knapton, Tsung-Cheng Liao, Yung-Chang Chang, Ya-Tang Hsieh
  • Publication number: 20230238750
    Abstract: A high-performance single barrel power connector for receiving electric power may be capable of receiving more than 330 W up to approximately 600 W of power. The V+ pin and V? pin may each be configured with a large plurality of contact points for connecting to a power plug. A connector body retaining the V+ pin and V? pin may configured with openings to expose more of the V+ pin and V? pin to air and allow the V+ pin and V? pin to extend out of the power connector for convective and conductive heat transfer. A shell having a high thermal conductivity may be connected to the V? pin and V? pin and further connected to a bracket for increased heat transfer away from the V+ and V? pins.
    Type: Application
    Filed: January 24, 2022
    Publication date: July 27, 2023
    Inventors: Andrew Thomas Sultenfuss, Tsung-Cheng Liao, Wei-Cheng Yu, Chi-Che Wu
  • Publication number: 20230134151
    Abstract: A method for increasing power supply voltage in an information handling system in a normal mode with a first peak voltage comprises, in response to receiving a request for a higher peak voltage, an embedded controller (EC) receiving information associated with the application including a request for power at a higher peak voltage, a housekeeping IC communicating a signal to a PWM IC to increase voltage supplied to the information handling system to the higher peak voltage, the PWM IC converting from the PSU to the higher peak voltage and starting a timer with a defined time period. If no additional requests for operating at the higher peak voltage are received before the time period expires, the PWM IC communicates a signal that power will stop being supplied at the higher peak voltage, and the information handling system returns to operating in the normal mode at the first peak voltage.
    Type: Application
    Filed: October 29, 2021
    Publication date: May 4, 2023
    Inventors: Wu Chi Che, Wei-Cheng Yu, Edward Douglas Knapton, Tsung-Cheng Liao, Yung-Chang Chang, Ya-Tang Hsieh
  • Patent number: 11632845
    Abstract: In one embodiment, a method for managing a light source of a power adapter includes: determining that the power adapter is coupled to a power supply; causing the light source to be in a first illuminated state indicating that the power adapter is receiving the power from the power supply; determining that a first instance of a threshold period of inactivity has occurred; causing the light source to be in an unilluminated state; determining that the power adapter is communicably coupled to an information handling system; causing the light source to be in a second illuminated state indicating that the power adapter is providing the power to the information handling system; determining that a second instance of the threshold period of inactivity has occurred; and causing the light source to be in the unilluminated state.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: April 18, 2023
    Assignee: Dell Products L.P.
    Inventors: Andrew T. Sultenfuss, Wei-Cheng Yu, Chi-Che Wu, Tsung-Cheng Liao
  • Patent number: 11626700
    Abstract: The present disclosure provides embodiments of direct current (DC) power connectors and methods to manufacture the same. More specifically, the present disclosure provides a connector plug with improved power capacity and structural rigidity. The connector plug includes an inner body and an outer body coupled to transmit power through the DC power connector, wherein the inner body is concentrically arranged within the outer body, and an insulating barrel that is coupled between the inner body and the outer body to electrically isolate the inner body from the outer body. The inner body and outer body comprise a base metal or metal alloy having an electrical conductivity ranging between 30% International Annealed Copper Standard (IACS) and greater than or equal to 99% IACS.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: April 11, 2023
    Assignee: Dell Products L.P.
    Inventors: Wei Cheng Yu, Andrew Sultenfuss, Chi Che Wu, Tsung-Cheng Liao
  • Publication number: 20230102470
    Abstract: In one embodiment, a method for managing a light source of a power adapter includes: determining that the power adapter is coupled to a power supply; causing the light source to be in a first illuminated state indicating that the power adapter is receiving the power from the power supply; determining that a first instance of a threshold period of inactivity has occurred; causing the light source to be in an unilluminated state; determining that the power adapter is communicably coupled to an information handling system; causing the light source to be in a second illuminated state indicating that the power adapter is providing the power to the information handling system; determining that a second instance of the threshold period of inactivity has occurred; and causing the light source to be in the unilluminated state.
    Type: Application
    Filed: September 17, 2021
    Publication date: March 30, 2023
    Inventors: Andrew T. Sultenfuss, Wei-Cheng Yu, Chi-Che Wu, Tsung-Cheng Liao
  • Patent number: 11467641
    Abstract: A power adaptor system may comprise a power source supplying input voltage according to a dynamic power rating to an operably connected host information handling system, a power source identification (PSID) module of the power adaptor receiving an adjustable setting voltage from the power source via a setting voltage port of the PSID module, and a controller of the PSID module executing code instructions to select the dynamic power rating for the power source based on a measurement of the adjustable setting voltage indicating an operating condition of the power adaptor or based on an indication of an operating condition the operably connected host information handling system, wherein the dynamic power rating is one of a plurality of dynamic power ratings in including an adjustable range of power levels at each dynamic power rating at which the power source is capable of operating.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: October 11, 2022
    Assignee: Dell Products, LP
    Inventors: Wei-Cheng Yu, Tsung-Cheng Liao, Tun-Chieh Liang, Wen-Yung Chang, Chi-Che Wu
  • Patent number: 11442519
    Abstract: The present disclosure provides various embodiments of an external power supply and methods to enhance the output power delivered by an external power supply to a power consuming load. As described in more detail below, the embodiments disclosed herein enable an external power supply to deliver a higher than maximum output power for short periods of time when ambient temperatures within the external power supply are low. As the ambient temperature increases, the embodiments disclosed herein throttle (or incrementally reduce) the output power delivered by the external power supply until the maximum output power specified for the power supply is reached. Although not strictly limited to such, the external power supply may be a Universal Serial Bus (USB)-enabled AC/DC adapter, and more specifically, a USB Power Deliver (USB-PD) AC/DC adapter, in some embodiments.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: September 13, 2022
    Assignee: Dell Products L.P.
    Inventors: Wei Cheng Yu, Geroncio O. Tan, Merle Wood, III, Chi Che Wu, Tsung-Cheng Liao, Wen-Yung Chang
  • Patent number: 11437914
    Abstract: As an example, a power supply may provide a particular voltage of multiple voltages based on a power profile provided by a universal serial bus Type C (USB-C) integrated circuit (IC) built-in to a USB-C port of a computing device. A power factor correction (PFC) converter may provide an output voltage that varies according to the power profile. The output voltage of the PFC converter may be used as an input to an inductor-inductor-capacitor (LLC) converter. The LLC converter may produce an output voltage that varies in voltage level proportionally to the PFC converter output voltage. The PFC converter may provide a voltage to the LLC converter that causes the LLC converter to provide an amount of voltage indicated in the power profile sent by the USB-C IC of the computing device.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: September 6, 2022
    Assignee: Dell Products L.P.
    Inventors: Wei-Cheng Yu, Merle Jackson Wood, III, Tsung-Cheng Liao, Geroncio Ong Tan, James C C Wu, Wen-Yung Chang
  • Patent number: 11432384
    Abstract: A disclosed method for LED control for a detachable reversable power cable includes detecting, at a power source, that a first connector at a first end of the power cable is connected to the power source, triggering, at the power source, a first pulse on a first wire of the power cable that turns off a first LED switch coupled to a first LED on the first connector, disabling the first LED, and triggering, at the power source, a second pulse on a second wire of the power cable that drives a second LED on a second connector at a second end of the power cable opposite the first end, the second LED being coupled to a second LED switch that is on. The method further includes, responsive to detecting that the second connector is connected to a power sink, modifying a driver path for the second LED.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: August 30, 2022
    Assignee: Dell Products L.P.
    Inventors: Wei-Cheng Yu, Tsung-Cheng Liao, Chi Che Wu, Andrew Thomas Sultenfuss
  • Publication number: 20220269327
    Abstract: The present disclosure provides various embodiments of an external power supply and methods to enhance the output power delivered by an external power supply to a power consuming load. As described in more detail below, the embodiments disclosed herein enable an external power supply to deliver a higher than maximum output power for short periods of time when ambient temperatures within the external power supply are low. As the ambient temperature increases, the embodiments disclosed herein throttle (or incrementally reduce) the output power delivered by the external power supply until the maximum output power specified for the power supply is reached. Although not strictly limited to such, the external power supply may be a Universal Serial Bus (USB)-enabled AC/DC adapter, and more specifically, a USB Power Deliver (USB-PD) AC/DC adapter, in some embodiments.
    Type: Application
    Filed: February 23, 2021
    Publication date: August 25, 2022
    Inventors: Wei Cheng Yu, Geroncio O. Tan, Merle Wood, III, Chi Che Wu, Tsung-Cheng Liao, Wen-Yung Chang
  • Publication number: 20220271481
    Abstract: The present disclosure provides embodiments of direct current (DC) power connectors and methods to manufacture the same. More specifically, the present disclosure provides a connector plug with improved power capacity and structural rigidity. The connector plug includes an inner body and an outer body coupled to transmit power through the DC power connector, wherein the inner body is concentrically arranged within the outer body, and an insulating barrel that is coupled between the inner body and the outer body to electrically isolate the inner body from the outer body. The inner body and outer body comprise a base metal or metal alloy having an electrical conductivity ranging between 30% International Annealed Copper Standard (IACS) and greater than or equal to 99% IACS.
    Type: Application
    Filed: February 23, 2021
    Publication date: August 25, 2022
    Inventors: Wei Cheng Yu, Andrew Sultenfuss, Chi Che Wu, Tsung-Cheng Liao
  • Patent number: 11411509
    Abstract: Systems and methods are provided to implement power supply units (PSUs) that are capable of operating on input power having different types of input voltage waveforms, including, but not limited to, pure sinusoidal waveforms, non-pure sinusoidal waveforms, and non-sinusoidal waveforms. Such a PSU may operate to continue supplying DC output power to a system load as long as the PSU is powered by any one of a variety of such different input power types, while at the same time also effectively monitoring for presence of input power provided to the PSU and shutting down the PSU in event of absence or termination of the input power to the PSU. Such a PSU may also automatically identify and adapt to changes between different types of input power while at the same time continuing to supply DC output power to a system load in an uninterrupted manner for as long as some type of input power is being provided to the PSU.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: August 9, 2022
    Assignee: Dell Products L.P.
    Inventors: Wei Cheng Yu, Geroncio O. Tan, Chi Che Wu, Merle Wood, III, Yung-Chang Chang, Ya-Tang Hsieh, Tsung-Cheng Liao