Patents by Inventor Ching-Feng Chang

Ching-Feng Chang 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: 20240332018
    Abstract: The present disclosure provides a semiconductor processing apparatus according to one embodiment. The semiconductor processing apparatus includes a chamber; a base station located in the chamber for supporting a semiconductor substrate; a preheating assembly surrounding the base station; a first heating element fixed relative to the base station and configured to direct heat to the semiconductor substrate; and a second heating element moveable relative to the base station and operable to direct heat to a portion of the semiconductor substrate.
    Type: Application
    Filed: June 10, 2024
    Publication date: October 3, 2024
    Inventors: Chih Yung HUNG, Wei-Jen LO, Cheng-Han LEE, Ching-Lun LAI, Chien-Feng LIN, Shahaji B. MORE, Shih-Chieh CHANG
  • Patent number: 12094741
    Abstract: An AMHS interface management system configured to facilitate the exchange of lot information between distinct AMHS systems. The AMHS interface management system receives lot information from a first AMHS system in a first format and translates the lot information into a format associated with a second AMHS system. The AMHS interface management system utilizes a handshake area located between the first and second AMHS systems. The handshake area includes one or more vehicles that facilitate the movement of a lot between the first AMHS system and the second AMHS system.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: September 17, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chieh Hsu, Guancyun Li, Ching-Jung Chang, Chi-Feng Tung
  • Patent number: 12085953
    Abstract: A mobile stocker described herein is configured to be easily installed and relocated to various locations in a semiconductor fabrication facility. The mobile stocker is capable of being programmed with, and/or autonomously learning, the layout of a semiconductor fabrication facility, and automatically relocating to a new location based on the layout using a navigation system. Accordingly, the mobile stocker is capable of being flexibly relocated in the semiconductor fabrication facility to dynamically support changes in demand and production capacity. Moreover, the capability to quickly assign a location identifier to the mobile stocker and to automatically interface with transport systems in the semiconductor fabrication facility reduces downtime of the mobile stocker, which increases productivity in the semiconductor fabrication facility.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: September 10, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Rong Syuan Fan, Ching-Jung Chang, Chi-Feng Tung, Hsiang Yin Shen
  • Patent number: 12046480
    Abstract: A method of manufacturing a semiconductor device includes providing a semiconductor die and surrounding a sidewall of the semiconductor die with a dielectric material. The method further includes forming a post passivation interconnect (PPI) over the semiconductor die and electrically coupling the PPI with the semiconductor die. The method further includes molding the semiconductor die and the PPI into an integrated semiconductor package. The method further includes covering at least a portion of an outer surface of the integrated semiconductor package with a conductive layer, wherein the conductive layer is conformal to the morphology of the portion of the outer surface. Moreover, the method further includes forming a conductive path inside the integrated semiconductor package electrically coupled to the conductive layer and a ground terminal of the integrated semiconductor package.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: July 23, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Shou Zen Chang, Chun-Lin Lu, Kai-Chiang Wu, Ching-Feng Yang, Vincent Chen, Chuei-Tang Wang, Yen-Ping Wang, Hsien-Wei Chen, Wei-Ting Lin
  • Patent number: 10253264
    Abstract: A method of producing low CTE graphite electrodes from needle coke formed from a coal tar distillate material having a relatively high initial boiling point.
    Type: Grant
    Filed: October 1, 2017
    Date of Patent: April 9, 2019
    Assignee: GrafTech International Holdings Inc.
    Inventors: Douglas J. Miller, Irwin C. Lewis, Ching-Feng Chang, Richard Thomas Lewis
  • Publication number: 20180282166
    Abstract: A precursor having at least five percent of lignin based coke and d002 spacing of more than 3.36 angstroms and less 3.44 for making graphite. Methods for making a green/graphite article include mixing coke derived from a petroleum product, a coal product or a bitumen product with coke derived from lignin. Alternatively, the precursor material for the various types of coke may be mixed and coked together. The mixture may be formed into a desired shape. The article may be subsequently carbonized and graphitized. The amount of lignin derived coke comprises a sufficient quantity to change at least a selected property of the graphite article.
    Type: Application
    Filed: June 5, 2018
    Publication date: October 4, 2018
    Inventors: Orest L. Adrianowycz, Bassam Alnasleh, Omer Gul, Andrew Adam Hausner, Robert E. Miller, Ching-Feng Chang
  • Patent number: 10011492
    Abstract: A precursor having at least five percent of lignin based coke and d002 spacing of more than 3.36 angstroms and less 3.44 for making graphite. Methods for making a green/graphite article include mixing coke derived from a petroleum product, a coal product or a bitumen product with coke derived from lignin. Alternatively, the precursor material for the various types of coke may be mixed and coked together. The mixture may be formed into a desired shape. The article may be subsequently carbonized and graphitized. The amount of lignin derived coke comprises a sufficient quantity to change at least a selected property of the graphite article.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: July 3, 2018
    Assignee: GrafTech International Holdings Inc.
    Inventors: Orest L. Adrianowycz, Bassam Alnasleh, Omer Gul, Andrew Adam Hausner, Robert E. Miller, Ching-Feng Chang
  • Publication number: 20180023004
    Abstract: A method of producing low CTE graphite electrodes from needle coke formed from a coal tar distillate material having a relatively high initial boiling point.
    Type: Application
    Filed: October 1, 2017
    Publication date: January 25, 2018
    Applicant: GrafTech International Holdings Inc.
    Inventors: Douglas J. Miller, Irwin C. Lewis, Ching-Feng Chang, Richard Thomas Lewis
  • Patent number: 9777221
    Abstract: A method of producing low CTE graphite electrodes from needle coke formed from a coal tar distillate material having a relatively high initial boiling point.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: October 3, 2017
    Assignee: GrafTech International Holdings Inc.
    Inventors: Douglas J. Miller, Irwin C. Lewis, Ching-Feng Chang, Richard Thomas Lewis
  • Patent number: 9758905
    Abstract: A method of making a carbon fiber comprising esterification of a lignin precursor with an acid, acid anhydride, or acyl halide, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a carbon residue selected from the group of coal based raw material, petroleum based raw material and combinations thereof, thereby forming a fiber precursor mixture; and spinning the fiber precursor mixture into a fiber. A method of making a carbon fiber comprising esterification of a lignin with an acid derivative, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a pitch, thereby forming a fiber precursor mixture; and spinning the fiber precursor mixture into a fiber. A method of making a carbon fiber comprising lowering the Tg of a lignin material, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a carbon residue, thereby forming a fiber precursor mixture and spinning the fiber precursor mixture into a fiber.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: September 12, 2017
    Assignee: GrafTech International Holdings Inc.
    Inventors: Bassam Alnasleh, Ching-Feng Chang, Omer Gul, Andrew Hausner, Robert Miller, Orest Adrianowycz
  • Patent number: 9683313
    Abstract: A method of making a carbon fiber includes heat treating a lignin precursor absent an active ingredient in an inert atmosphere to raise the glass transition temperature (Tg) of the precursor by at least five (5%) percent, forming a lignin precursor having an increased Tg (High Tg Lignin). The High Tg Lignin can be spun into a fiber. The fiber may then be stabilized to form a thermoset fiber. The time period for stabilizing the fiber is less than one hundred (100) hours.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: June 20, 2017
    Assignee: GrafTech International Holdings Inc.
    Inventors: Ching-Feng Chang, Bassam Alnasleh, Omer Gul, Robert E Miller, Andrew Hausner, Orest L Adrianowycz, Chong Chen, Brian Paul Askey
  • Publication number: 20160200579
    Abstract: A precursor having at least five percent of lignin based coke and d002 spacing of more than 3.36 angstroms and less 3.44 for making graphite. Methods for making a green/graphite article include mixing coke derived from a petroleum product, a coal product or a bitumen product with coke derived from lignin. Alternatively, the precursor material for the various types of coke may be mixed and coked together. The mixture may be formed into a desired shape. The article may be subsequently carbonized and graphitized. The amount of lignin derived coke comprises a sufficient quantity to change at least a selected property of the graphite article.
    Type: Application
    Filed: August 20, 2014
    Publication date: July 14, 2016
    Inventors: Orest L. Adrianowycz, Bassam Alnasleh, Omer Gul, Andrew Adam Hausner, Robert E. Miller, Ching-Feng Chang
  • Publication number: 20150284880
    Abstract: A method of making a carbon fiber comprising esterification of a lignin precursor with an acid, acid anhydride, or acyl halide, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a carbon residue selected from the group of coal based raw material, petroleum based raw material and combinations thereof, thereby forming a fiber precursor mixture; and spinning the fiber precursor mixture into a fiber. A method of making a carbon fiber comprising esterification of a lignin with an acid derivative, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a pitch, thereby forming a fiber precursor mixture; and spinning the fiber precursor mixture into a fiber. A method of making a carbon fiber comprising lowering the Tg of a lignin material, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a carbon residue, thereby forming a fiber precursor mixture and spinning the fiber precursor mixture into a fiber.
    Type: Application
    Filed: November 5, 2013
    Publication date: October 8, 2015
    Inventors: Bassam Alnasleh, Ching-Feng Chang, Omer Gul, Andrew Hausner, Robert Miller, Orest Adrianowycz
  • Publication number: 20150233023
    Abstract: A method of making a carbon fiber includes heat treating a lignin precursor absent an active ingredient in an inert atmosphere to raise the glass transition temperature (Tg) of the precursor by at least five (5%) percent, forming a lignin precursor having an increased Tg (High Tg Lignin). The High Tg Lignin can be spun into a fiber. The fiber may then be stabilized to form a thermoset fiber. The time period for stabilizing the fiber is less than one hundred (100) hours.
    Type: Application
    Filed: August 20, 2013
    Publication date: August 20, 2015
    Inventors: Ching-Feng Chang, Bassam Kamal Alnasleh, Omer Gul, Robert E Miller, Andrew Adam Hausner, Orest L Adrianowycz, Chong Chen, Brian Paul Askey
  • Patent number: 8828348
    Abstract: A reduced puffing needle coke is formed, which includes a lesser amount of nitrogen within the coke so that carbon articles produced from such coke experience minimal expansion upon heating to graphitization temperatures.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: September 9, 2014
    Assignee: GrafTech International Holdings Inc.
    Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Aaron Tomasek, Richard L. Shao
  • Patent number: 8747651
    Abstract: A high coking value pitch prepared from coal tar distillate and has a low softening point and a high carbon value while containing substantially no quinoline insolubles is disclosed. The pitch can be used as an impregnant or binder for producing carbon and graphite articles.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: June 10, 2014
    Assignee: GrafTech International Holdings Inc.
    Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Richard T. Lewis
  • Publication number: 20140102277
    Abstract: A height adjustment device for a band saw machine includes a fixing unit, an adjustment unit which is slidable relative to the fixing unit and at least one fixing member to secure the fixing unit the adjustment unit. Through the position of the adjustment unit relative to the fixing unit, the height of the band saw machine can be adjusted according to the user's height for the user to operate the band saw machine conveniently.
    Type: Application
    Filed: October 11, 2012
    Publication date: April 17, 2014
    Applicant: KING SAW MACHINERY LTD.
    Inventor: Ching-Feng CHANG
  • Patent number: 8658315
    Abstract: A reduced puffing needle coke is formed from decant oil, which includes a lesser amount of nitrogen within the coke so that carbon articles produced from such coke experience minimal expansion upon heating to graphitization temperatures.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: February 25, 2014
    Assignee: GrafTech International Holdings Inc.
    Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Aaron Tomasek, Richard L. Shao
  • Patent number: 8530094
    Abstract: A reduced puffing needle coke is formed, which includes a reduced nitrogen content within the coke so that the coke particles do not experience as much puffing during the formation of graphitized carbon articles produced from such coke upon heating to graphitization temperatures.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: September 10, 2013
    Assignee: Graftech International Holdings Inc.
    Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Richart T. Lewis, Aaron Tomasek, Richard L. Shao
  • Publication number: 20130012744
    Abstract: A reduced puffing needle coke is formed, which includes a reduced nitrogen content within the coke so that the coke particles do not experience as much puffing during the formation of graphitized carbon articles produced from such coke upon heating to graphitization temperatures.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Richard T. Lewis, Aaron Tomasek, Richard L. Shao