Patents by Inventor Sheng Kang

Sheng Kang 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: 20230288819
    Abstract: A system and method for dynamically controlling a temperature of a thermostatic reticle. A thermostatic reticle assembly that includes a reticle, temperature sensors located in proximity to the reticle, and one or more heating elements. A thermostat component that is in communication with the temperature sensors and the heating element monitors the current temperature of the reticle relative to a steady-state temperature. In response to the current temperature of the reticle being lower than the steady-state temperature, the heating elements are activated to preheat the reticle to the steady-state temperature.
    Type: Application
    Filed: May 15, 2023
    Publication date: September 14, 2023
    Inventors: Tzu-Jung Pan, Sheng-Kang Yu, Shang-Chieh Chien, Li-Jui Chen, Heng-Hsin Liu
  • Patent number: 11756961
    Abstract: A method includes forming a first semiconducting channel comprising a plurality of vertical nanowires and a second semiconducting channel comprising a plurality of vertical nanowires. The first semiconducting channel and the second semiconducting channel are formed in a stacked configuration. The plurality of vertical nanowires of the first semiconducting channel are formed in alternating positions relative to the plurality of vertical nanowires of the second semiconducting channel.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: September 12, 2023
    Assignee: International Business Machines Corporation
    Inventors: Tsung-Sheng Kang, Tao Li, Ardasheir Rahman, Praveen Joseph, Indira Seshadri, Ekmini Anuja De Silva
  • Publication number: 20230280657
    Abstract: The present disclosure provides a method for an extreme ultraviolet (EUV) lithography system that includes a radiation source having a laser device configured with a mechanism to generate an EUV radiation. The method includes collecting a laser beam profile of a laser beam from the laser device in a 3-dimensional (3D) mode; collecting an EUV energy distribution of the EUV radiation generated by the laser beam in the 3D mode; performing an analysis to the laser beam profile and the EUV energy distribution, resulting in an analysis data; and adjusting the radiation source according to the analysis data to enhance the EUV radiation.
    Type: Application
    Filed: June 7, 2022
    Publication date: September 7, 2023
    Inventors: Tai-Yu CHEN, Tzu-Jung PAN, Kuan-Hung CHEN, Sheng-Kang YU, Shang-Chieh CHIEN, Li-Jui CHEN, Heng-Hsin LIU
  • Publication number: 20230284366
    Abstract: A light source is provided capable of maintaining the temperature of a collector surface at or below a predetermined temperature. The light source in accordance with various embodiments of the present disclosure includes a processor, a droplet generator for generating a droplet to create extreme ultraviolet light, a collector for reflecting the extreme ultraviolet light into an intermediate focus point, a light generator for generating pre-pulse light and main pulse light, and a thermal image capture device for capturing a thermal image from a reflective surface of the collector.
    Type: Application
    Filed: April 11, 2023
    Publication date: September 7, 2023
    Inventors: Tai-Yu CHEN, Cho-Ying LIN, Sagar Deepak KHIVSARA, Hsiang CHEN, Chieh HSIEH, Sheng-Kang YU, Shang-Chieh CHIEN, Kai Tak LAM, Li-Jui CHEN, Heng-Hsin LIU, Zhiqiang WU
  • Patent number: 11747735
    Abstract: In a method of generating extreme ultraviolet (EUV) radiation in a semiconductor manufacturing system one or more streams of a gas is directed, through one or more gas outlets mounted over a rim of a collector mirror of an EUV radiation source, to generate a flow of the gas over a surface of the collector mirror. The one or more flow rates of the one or more streams of the gas are adjusted to reduce an amount of metal debris deposited on the surface of the collector mirror.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: September 5, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Che-Chang Hsu, Sheng-Kang Yu, Shang-Chieh Chien, Li-Jui Chen, Heng-Hsin Liu
  • Publication number: 20230274850
    Abstract: A radiation source apparatus includes a vessel, a laser source, a collector, a horizontal obscuration bar, and a reflective mirror. The vessel has an exit aperture. The laser source is configured to emit a laser beam to excite a target material to form a plasma. The collector is disposed in the vessel and configured to collect a radiation emitted by the plasma and to reflect the collected radiation to the exit aperture of the vessel. The horizontal obscuration bar extends from a sidewall of the vessel at least to a position between the laser source and the exit aperture of the vessel. The reflective mirror is in the vessel and connected to the horizontal obscuration bar.
    Type: Application
    Filed: May 5, 2023
    Publication date: August 31, 2023
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Wei-Chung TU, Sheng-Kang YU, Shang-Chieh CHIEN, Li-Jui CHEN, Heng-Hsin LIU
  • Publication number: 20230266680
    Abstract: Some implementations described herein provide a reticle cleaning device and a method of use. The reticle cleaning device includes a support member configured for extension toward a reticle within an extreme ultraviolet lithography tool. The reticle cleaning device also includes a contact surface disposed at an end of the support member and configured to bond to particles contacted by the contact surface. The reticle cleaning device further includes a stress sensor configured to measure an amount of stress applied to the support member at the contact surface. During a cleaning operation in which the contact surface is moving toward the reticle, the stress sensor may provide an indication that the amount of stress applied to the support member satisfies a threshold. Based on satisfying the threshold, movement of the contact surface and/or the support member toward the reticle ceases to avoid damaging the reticle.
    Type: Application
    Filed: April 28, 2023
    Publication date: August 24, 2023
    Inventors: Che-Chang HSU, Sheng-Kang YU, Shang-Chieh CHIEN, Li-Jui CHEN, Heng-Hsin LIU
  • Publication number: 20230217639
    Abstract: A memory device includes a first field effect transistor (FET) stack on a first bottom source/drain region, which includes a first vertical transport field effect transistor (VTFET) device between a second VTFET device and the first source/drain region, and a second FET stack on a second bottom source/drain region, which includes a third VTFET device between a fourth VTFET device and the bottom source/drain region. The memory device includes a third FET stack on a third bottom source/drain region, which includes a fifth VTFET between a sixth VTFET and the third source/drain region, which is laterally adjacent to the first and second source/drain regions. The memory device includes a first electrical connection interconnecting a gate structure of the third VTFET with a gate structure of the fifth VTFET, and a second electrical connection interconnecting a gate structure of the second VTFET with a gate structure of the sixth VTFET.
    Type: Application
    Filed: March 14, 2023
    Publication date: July 6, 2023
    Inventors: Tsung-Sheng Kang, Ardasheir Rahman, Tao Li, Albert M. Young
  • Publication number: 20230215594
    Abstract: An extreme ultra violet (EUV) light source apparatus includes a metal droplet generator, a collector mirror, an excitation laser inlet port for receiving an excitation laser, a first mirror configured to reflect the excitation laser that passes through a zone of excitation, and a second mirror configured to reflect the excitation laser reflected by the first mirror.
    Type: Application
    Filed: March 13, 2023
    Publication date: July 6, 2023
    Inventors: Cheng Hung TSAI, Sheng-Kang Yu, Shang-Chieh Chien, Heng-Hsin Liu, Li-Jul Chen
  • Patent number: 11694820
    Abstract: A radiation source apparatus includes a vessel, a laser source, a collector, and a reflective mirror. The vessel has an exit aperture. The laser source is at one end of the vessel and configured to excite a target material to form a plasma. The collector is disposed in the vessel and configured to collect a radiation emitted by the plasma and to direct the collected radiation to the exit aperture of the vessel. The reflective mirror is in the vessel and configured to reflect the laser beam toward an edge of the vessel.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: July 4, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wei-Chung Tu, Sheng-Kang Yu, Shang-Chieh Chien, Li-Jui Chen, Heng-Hsin Liu
  • Patent number: 11693326
    Abstract: A system and method for dynamically controlling a temperature of a thermostatic reticle. A thermostatic reticle assembly that includes a reticle, temperature sensors located in proximity to the reticle, and one or more heating elements. A thermostat component that is in communication with the temperature sensors and the heating element monitors the current temperature of the reticle relative to a steady-state temperature. In response to the current temperature of the reticle being lower than the steady-state temperature, the heating elements are activated to preheat the reticle to the steady-state temperature.
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: July 4, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tzu-Jung Pan, Sheng-Kang Yu, Shang-Chieh Chien, Li-Jui Chen, Heng-Hsin Liu
  • Patent number: 11678475
    Abstract: A memory device includes a first field effect transistor (FET) stack on a first bottom source/drain region, which includes a first vertical transport field effect transistor (VTFET) device between a second VTFET device and the first source/drain region, and a second FET stack on a second bottom source/drain region, which includes a third VTFET device between a fourth VTFET device and the bottom source/drain region. The memory device includes a third FET stack on a third bottom source/drain region, which includes a fifth VTFET between a sixth VTFET and the third source/drain region, which is laterally adjacent to the first and second source/drain regions. The memory device includes a first electrical connection interconnecting a gate structure of the third VTFET with a gate structure of the fifth VTFET, and a second electrical connection interconnecting a gate structure of the second VTFET with a gate structure of the sixth VTFET.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: June 13, 2023
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Tsung-Sheng Kang, Ardasheir Rahman, Tao Li, Albert M. Young
  • Publication number: 20230178423
    Abstract: An interconnect structure and a method of forming the interconnect structure are provided. The interconnect structure includes one or more metal lines and one or more top vias in direct contact with a top surface of the one or more metal lines. The interconnect structure also includes a liner formed on sidewalls of the one or more top vias and top portions of the one or more metal lines.
    Type: Application
    Filed: December 3, 2021
    Publication date: June 8, 2023
    Inventors: Tao Li, Ruilong Xie, Tsung-Sheng Kang, Chih-Chao Yang
  • Publication number: 20230178623
    Abstract: A semiconductor channel material structure is provided that has an improved, i.e., increased, effective channel area. The semiconductor channel material structure includes a plurality of semiconductor channel material nanosheets stacked one atop the other. The increased channel area is afforded by providing at least one through-stack semiconductor channel material that extends through at least one of the semiconductor channel material nanosheets.
    Type: Application
    Filed: December 8, 2021
    Publication date: June 8, 2023
    Inventors: Tao Li, Ardasheir Rahman, Tsung-Sheng Kang, SHOGO MOCHIZUKI
  • Publication number: 20230180621
    Abstract: A magneto-resistive random access memory device includes a top electrode electrically connected to a conductive interconnect through a metal capping layer located above a top surface and opposite sidewalls of the top electrode, the conductive interconnect is located on opposite sidewalls of the metal capping layer with a top surface of the metal capping layer being coplanar with a top surface of the conductive interconnect.
    Type: Application
    Filed: December 3, 2021
    Publication date: June 8, 2023
    Inventors: Ruilong Xie, Tao Li, Tsung-Sheng Kang, Alexander Reznicek, Chih-Chao Yang
  • Publication number: 20230178429
    Abstract: A method of manufacturing an interconnect structure for a semiconductor device is provided. The method includes forming a metal interconnect layer on a substrate. The method includes forming a hardmask on the metal interconnect layer, patterning the metal interconnect layer and hardmask, forming a sacrificial material layer to overfill the patterned metal interconnect layer and hardmask, and selectively removing a portion of the sacrificial layer and the hardmask to form a via opening. The method also includes forming a via on the metal interconnect layer in the via opening by a selective metal growth process.
    Type: Application
    Filed: December 8, 2021
    Publication date: June 8, 2023
    Inventors: TSUNG-SHENG KANG, RUILONG XIE, TAO LI, CHIH-CHAO YANG
  • Publication number: 20230178551
    Abstract: A semiconductor device including a first device that includes a plurality of nanosheets located on top of a substrate, where the plurality of nanosheets includes first number of nanosheets. A second device that a plurality of vertical segments located on the substrate, where the plurality of vertical segments is in the same vertical plane. Wherein the first device and the second device are adjacent to each other. Where the plurality of vertical segments includes a second number of vertical segments and where the first number is larger than the second number.
    Type: Application
    Filed: December 2, 2021
    Publication date: June 8, 2023
    Inventors: Tsung-Sheng Kang, Ruilong Xie, Tao Li, Alexander Reznicek
  • Publication number: 20230170298
    Abstract: An interconnect structure and a method of forming the interconnect structure are provided. The interconnect structure includes one or more metal lines in direct contact with a top surface of one or more devices and one or more vias in direct contact with top surfaces of the one or more metal lines. The interconnect structure also includes one or more dielectric pillars in direct contact with the top surface of the one or more devices. A height of a top surface of the one or more dielectric pillars above the one or more devices is equal to a height of a top surface of the one or more vias above the one or more devices.
    Type: Application
    Filed: December 1, 2021
    Publication date: June 1, 2023
    Inventors: Tao Li, Ruilong Xie, Tsung-Sheng Kang, Chih-Chao Yang
  • Patent number: 11652156
    Abstract: Embodiments of the present invention are directed to methods and resulting structures for nanosheet devices having asymmetric gate stacks. In a non-limiting embodiment of the invention, a nanosheet stack is formed over a substrate. The nanosheet stack includes alternating semiconductor layers and sacrificial layers. A sacrificial liner is formed over the nanosheet stack and a dielectric gate structure is formed over the nanosheet stack and the sacrificial liner. A first inner spacer is formed on a sidewall of the sacrificial layers. A gate is formed over channel regions of the nanosheet stack. The gate includes a conductive bridge that extends over the substrate in a direction orthogonal to the nanosheet stack. A second inner spacer is formed on a sidewall of the gate. The first inner spacer is formed prior to the gate stack, while the second inner spacer is formed after, and consequently, the gate stack is asymmetrical.
    Type: Grant
    Filed: October 21, 2021
    Date of Patent: May 16, 2023
    Assignee: International Business Machines Corporation
    Inventors: Ruilong Xie, Carl Radens, Kangguo Cheng, Juntao Li, Dechao Guo, Tao Li, Tsung-Sheng Kang
  • Patent number: 11650512
    Abstract: Some implementations described herein provide a reticle cleaning device and a method of use. The reticle cleaning device includes a support member configured for extension toward a reticle within an extreme ultraviolet lithography tool. The reticle cleaning device also includes a contact surface disposed at an end of the support member and configured to bond to particles contacted by the contact surface. The reticle cleaning device further includes a stress sensor configured to measure an amount of stress applied to the support member at the contact surface. During a cleaning operation in which the contact surface is moving toward the reticle, the stress sensor may provide an indication that the amount of stress applied to the support member satisfies a threshold. Based on satisfying the threshold, movement of the contact surface and/or the support member toward the reticle ceases to avoid damaging the reticle.
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: May 16, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Che-Chang Hsu, Sheng-Kang Yu, Shang-Chieh Chien, Li-Jui Chen, Heng-Hsin Liu