Patents by Inventor Yu-Chuan Chiu
Yu-Chuan Chiu 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: 20240162094Abstract: A semiconductor device structure is provided. The semiconductor device structure includes a substrate, a conductive feature on the substrate, and an electrical connection structure on the conductive feature. The electrical connection includes a first grain made of a first metal material, and a first inhibition layer made of a second metal layer that is different than the first metal material. The first inhibition layer extends vertically along a first side of a grain boundary of the first grain and laterally along a bottom of the grain boundary of the first grain.Type: ApplicationFiled: January 5, 2024Publication date: May 16, 2024Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Shih-Chuan CHIU, Jia-Chuan YOU, Chia-Hao CHANG, Chun-Yuan CHEN, Tien-Lu LIN, Yu-Ming LIN, Chih-Hao WANG
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Publication number: 20240096961Abstract: A contact stack of a semiconductor device includes a source/drain feature, a silicide layer wrapping around the source/drain feature, a seed metal layer in direct contact with the silicide layer, and a conductor in contact with the seed metal layer. The contact stack excludes a metal nitride layer in direct contact with the silicide layer.Type: ApplicationFiled: November 28, 2023Publication date: March 21, 2024Inventors: Shih-Chuan CHIU, Tien-Lu LIN, Yu-Ming LIN, Chia-Hao CHANG, Chih-Hao WANG, Jia-Chuan YOU
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Publication number: 20240088293Abstract: An n-type metal oxide semiconductor transistor includes a gate structure, two source/drain regions, two amorphous portions and a silicide. The gate structure is disposed on a substrate. The two source/drain regions are disposed in the substrate and respectively located at two sides of the gate structure, wherein at least one of the source/drain regions is formed with a dislocation. The two amorphous portions are respectively disposed in the two source/drain regions. The silicide is disposed on the two source/drain regions, wherein at least one portion of the silicide overlaps the two amorphous portions.Type: ApplicationFiled: October 5, 2022Publication date: March 14, 2024Applicant: UNITED MICROELECTRONICS CORP.Inventors: Chun-Ya Chiu, Ssu-I Fu, Chin-Hung Chen, Jin-Yan Chiou, Wei-Chuan Tsai, Yu-Hsiang Lin
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Patent number: 9976628Abstract: A positioning structure for a worm wheel which is configured to mesh with a worm spindle and contains: a body, a plurality of rolling assemblies, and at least one attaching material. The body includes plural accommodating grooves and plural recesses, wherein each recess forms on a bottom face of each accommodating groove and communicating with said each accommodating groove. Each rolling assembly includes a holder, a rolling ball, and a magnetic attracting element, wherein a width of the holder is less than a width of said each accommodating groove so as to form a gap between the holder and said each accommodating groove. Each attaching material is filled in the gap, and said each rolling assembly is adjustably moved to a fixing position of said each accommodating groove by using said each recess, such that said each attaching material locates the holder in said each accommodating groove.Type: GrantFiled: November 5, 2015Date of Patent: May 22, 2018Assignee: INNOSERV FA INC.Inventors: Yu-Chuan Chiu, Chih-Meng Wu
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Patent number: 9630285Abstract: A servo-driven tool unclamping system for a machine tool contains: a tool changing unit, a tool unclamp unit, and a servo control unit. The tool changing unit includes a cam box, a first servo motor for driving the cam box, a driving shaft driven by the cam box, and a tool change arm driven by the driving shaft. The tool unclamp unit includes a spindle, a transmission assembly, and a second servo motor. The servo control unit includes a main controller, a first servo drive and a second servo drive both electrically connected with and controlled by the main controller. The first servo drive and the second servo drive are also electrically coupled with the first servo motor and the second servo motor and numerically control the tool changing unit and the tool unclamp unit, hence the tool change arm operates, and the spindle clamps and unclamps each tool.Type: GrantFiled: June 19, 2014Date of Patent: April 25, 2017Assignee: INNOSERV FA INC.Inventors: Yu-Chuan Chiu, Chih-Lung Lai
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Publication number: 20170108083Abstract: A positioning structure for a worm wheel which is configured to mesh with a worm spindle and contains: a body, a plurality of rolling assemblies, and at least one attaching material. The body includes plural accommodating grooves and plural recesses, wherein each recess forms on a bottom face of each accommodating groove and communicating with said each accommodating groove. Each rolling assembly includes a holder, a rolling ball, and a magnetic attracting element, wherein a width of the holder is less than a width of said each accommodating groove so as to form a gap between the holder and said each accommodating groove. Each attaching material is filled in the gap, and said each rolling assembly is adjustably moved to a fixing position of said each accommodating groove by using said each recess, such that said each attaching material locates the holder in said each accommodating groove.Type: ApplicationFiled: November 5, 2015Publication date: April 20, 2017Inventors: Yu-Chuan Chiu, Chih-Meng Wu
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Publication number: 20150367467Abstract: A servo-driven tool unclamping system for a machine tool contains: a tool changing unit, a tool unclamp unit, and a servo control unit. The tool changing unit includes a cam box, a first servo motor for driving the cam box, a driving shaft driven by the cam box, and a tool change arm driven by the driving shaft. The tool unclamp unit includes a spindle, a transmission assembly, and a second servo motor. The servo control unit includes a main controller, a first servo drive and a second servo drive both electrically connected with and controlled by the main controller. The first servo drive and the second servo drive are also electrically coupled with the first servo motor and the second servo motor and numerically control the tool changing unit and the tool unclamp unit, hence the tool change arm operates, and the spindle clamps and unclamps each tool.Type: ApplicationFiled: June 19, 2014Publication date: December 24, 2015Inventors: Yu-Chuan Chiu, Chih-Lung Lai
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Patent number: 9201418Abstract: A servo motor drive is connected with at least two servo motors and contains: a main control unit, a power unit, and at least one servo drive module. Each servo drive module includes a communication interface unit, an input/output unit, a microprocessing unit, a field-programmable gate array, a current control unit, and a switching unit. The communication interface unit is electrically connected between the main control unit and the microprocessing unit. The input/output unit is electrically connected between the main control unit and the field-programmable gate array. The field-programmable gate array converts data of the at least two servo motors into digital data.Type: GrantFiled: May 12, 2014Date of Patent: December 1, 2015Assignee: INNOSERV FA INC.Inventors: Yu-Chuan Chiu, Yu-Yuan Lin
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Publication number: 20150323909Abstract: A servo motor drive is connected with at least two servo motors and contains: a main control unit, a power unit, and at least one servo drive module. Each servo drive module includes a communication interface unit, an input/output unit, a microprocessing unit, a field-programmable gate array, a current control unit, and a switching unit. The communication interface unit is electrically connected between the main control unit and the microprocessing unit. The input/output unit is electrically connected between the main control unit and the field-programmable gate array. The field-programmable gate array converts data of the at least two servo motors into digital data.Type: ApplicationFiled: May 12, 2014Publication date: November 12, 2015Applicant: INNOSERV FA INC.Inventors: Yu-Chuan Chiu, Yu-Yuan Lin
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Publication number: 20120027978Abstract: A multi-element optical substrate preparation method includes the steps of: a) preparing a first element having a center hole and a core positioning device defining a first element center line; b) preparing a mold having a mold cavity and a cavity center line, and then placing the first element in the mold to keep a predetermined part of the first element in contact with the mold cavity; c) calibrating the position of the core positioning device of the first element in the mold cavity subject to the reference of the cavity center line of the mold; d) filling a transparent plastic material into the mold cavity of the mold for enabling the transparent plastic material to be molded on the first element and cured into a second element so that the first element and the second element form an optical substrate; and e) opening the mold and taking the optical substrate out of the mold.Type: ApplicationFiled: July 28, 2010Publication date: February 2, 2012Inventors: Yu-Sheng Chang, Tsu-Meng Lee, Yu-Chuan Chiu