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).
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Publication number: 20240332018Abstract: 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: ApplicationFiled: June 10, 2024Publication date: October 3, 2024Inventors: Chih Yung HUNG, Wei-Jen LO, Cheng-Han LEE, Ching-Lun LAI, Chien-Feng LIN, Shahaji B. MORE, Shih-Chieh CHANG
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Patent number: 12094741Abstract: 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: GrantFiled: July 19, 2021Date of Patent: September 17, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Chieh Hsu, Guancyun Li, Ching-Jung Chang, Chi-Feng Tung
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Patent number: 12085953Abstract: 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: GrantFiled: June 28, 2021Date of Patent: September 10, 2024Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Rong Syuan Fan, Ching-Jung Chang, Chi-Feng Tung, Hsiang Yin Shen
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Patent number: 12046480Abstract: 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: GrantFiled: July 27, 2020Date of Patent: July 23, 2024Assignee: 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
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Patent number: 10253264Abstract: 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: GrantFiled: October 1, 2017Date of Patent: April 9, 2019Assignee: GrafTech International Holdings Inc.Inventors: Douglas J. Miller, Irwin C. Lewis, Ching-Feng Chang, Richard Thomas Lewis
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Publication number: 20180282166Abstract: 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: ApplicationFiled: June 5, 2018Publication date: October 4, 2018Inventors: Orest L. Adrianowycz, Bassam Alnasleh, Omer Gul, Andrew Adam Hausner, Robert E. Miller, Ching-Feng Chang
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Patent number: 10011492Abstract: 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: GrantFiled: August 20, 2014Date of Patent: July 3, 2018Assignee: GrafTech International Holdings Inc.Inventors: Orest L. Adrianowycz, Bassam Alnasleh, Omer Gul, Andrew Adam Hausner, Robert E. Miller, Ching-Feng Chang
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Publication number: 20180023004Abstract: 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: ApplicationFiled: October 1, 2017Publication date: January 25, 2018Applicant: GrafTech International Holdings Inc.Inventors: Douglas J. Miller, Irwin C. Lewis, Ching-Feng Chang, Richard Thomas Lewis
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Patent number: 9777221Abstract: 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: GrantFiled: June 29, 2006Date of Patent: October 3, 2017Assignee: GrafTech International Holdings Inc.Inventors: Douglas J. Miller, Irwin C. Lewis, Ching-Feng Chang, Richard Thomas Lewis
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Patent number: 9758905Abstract: 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: GrantFiled: November 5, 2013Date of Patent: September 12, 2017Assignee: GrafTech International Holdings Inc.Inventors: Bassam Alnasleh, Ching-Feng Chang, Omer Gul, Andrew Hausner, Robert Miller, Orest Adrianowycz
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Patent number: 9683313Abstract: 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: GrantFiled: August 20, 2013Date of Patent: June 20, 2017Assignee: 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
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Publication number: 20160200579Abstract: 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: ApplicationFiled: August 20, 2014Publication date: July 14, 2016Inventors: Orest L. Adrianowycz, Bassam Alnasleh, Omer Gul, Andrew Adam Hausner, Robert E. Miller, Ching-Feng Chang
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Publication number: 20150284880Abstract: 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: ApplicationFiled: November 5, 2013Publication date: October 8, 2015Inventors: Bassam Alnasleh, Ching-Feng Chang, Omer Gul, Andrew Hausner, Robert Miller, Orest Adrianowycz
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Publication number: 20150233023Abstract: 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: ApplicationFiled: August 20, 2013Publication date: August 20, 2015Inventors: Ching-Feng Chang, Bassam Kamal Alnasleh, Omer Gul, Robert E Miller, Andrew Adam Hausner, Orest L Adrianowycz, Chong Chen, Brian Paul Askey
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Patent number: 8828348Abstract: 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: GrantFiled: July 21, 2011Date of Patent: September 9, 2014Assignee: GrafTech International Holdings Inc.Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Aaron Tomasek, Richard L. Shao
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Patent number: 8747651Abstract: 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: GrantFiled: May 22, 2008Date of Patent: June 10, 2014Assignee: GrafTech International Holdings Inc.Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Richard T. Lewis
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Publication number: 20140102277Abstract: 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: ApplicationFiled: October 11, 2012Publication date: April 17, 2014Applicant: KING SAW MACHINERY LTD.Inventor: Ching-Feng CHANG
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Patent number: 8658315Abstract: 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: GrantFiled: July 21, 2011Date of Patent: February 25, 2014Assignee: GrafTech International Holdings Inc.Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Aaron Tomasek, Richard L. Shao
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Patent number: 8530094Abstract: 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: GrantFiled: July 21, 2011Date of Patent: September 10, 2013Assignee: Graftech International Holdings Inc.Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Richart T. Lewis, Aaron Tomasek, Richard L. Shao
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Publication number: 20130012744Abstract: 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: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Inventors: Douglas J. Miller, Ching-Feng Chang, Irwin C. Lewis, Richard T. Lewis, Aaron Tomasek, Richard L. Shao