Patents by Inventor Jung-Sheng Chang
Jung-Sheng 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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Patent number: 11978674Abstract: A semiconductor device structure is provided. The semiconductor device structure includes a first source/drain epitaxial feature formed over a substrate, a second source/drain epitaxial feature formed over the substrate, two or more semiconductor layers disposed between the first source/drain epitaxial feature and the second source/drain epitaxial feature, a gate electrode layer surrounding a portion of one of the two or more semiconductor layers, a first dielectric region disposed in the substrate and in contact with a first side of the first source/drain epitaxial feature, and a second dielectric region disposed in the substrate and in contact with a first side of the second source/drain epitaxial feature, the second dielectric region being separated from the first dielectric region by a substrate.Type: GrantFiled: October 8, 2021Date of Patent: May 7, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: I-Ming Chang, Jung-Hung Chang, Chung-Liang Cheng, Hsiang-Pi Chang, Yao-Sheng Huang, Huang-Lin Chao
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Publication number: 20240140765Abstract: An overhead hoist transfer apparatus includes a rail assembly including a straight rail having an empty section, and a curved rail having a curved empty section; an engine including a first LSD having first and second wheels at two sides respectively; and a second LSD having third and fourth wheels at two sides respectively; a moving carriage driven by the engine and suspended from the rail assembly; first and second guide wheels disposed on the first LSD; third and fourth guide wheels disposed on the second LSD; and two guide boards disposed above a joining point of the straight rail and the curved rail. An elevation of the guide boards is equal to that of the guide wheels. The guide board includes a straight edge and a curved edge.Type: ApplicationFiled: September 27, 2023Publication date: May 2, 2024Inventors: Jung-Chieh Chang, Yi-Sheng Chen, Jen-Yung Hsiao, Chia-Fu Hsiao, Wei-Qi Lao, Chen-Chih Chan, Caung-Yu Liu
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Patent number: 11963348Abstract: A method of making a ROM structure includes the operations of forming an active area having a channel, a source region, and a drain region; depositing a gate electrode over the channel; depositing a conductive line over at least one of the source region and the drain region; adding dopants to the source region and the drain region of the active area; forming contacts to the gate electrode, the source region, and the drain; depositing a power rail, a bit line, and at least one word line of the integrated circuit against the contacts; and dividing the active area with a trench isolation structure to electrically isolate the gate electrode from the source region and the drain region.Type: GrantFiled: August 10, 2022Date of Patent: April 16, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Geng-Cing Lin, Ze-Sian Lu, Meng-Sheng Chang, Chia-En Huang, Jung-Ping Yang, Yen-Huei Chen
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Publication number: 20240116707Abstract: A powered industrial truck includes a lateral movement assembly including four sliding members and four pivotal members both on a wheeled carriage, four links having a first end pivotably secured to the sliding member and a second end pivotably secured to either end of the pivotal member, a motor shaft having two ends pivotably secured to the pivotal members respectively, a first electric motor on one frame member, and four mounts attached to the sliding members respectively; two lift assemblies including a second electric motor, a shaft having two ends rotatably secured to the sliding members respectively, two gear trains at the ends of the shaft respectively, a first gear connected to the second electric motor, a second gear on the shaft, and a first roller chain on the first and second gears; two electric attachments on the platform and being laterally moveable, each attachment. The mount has rollers.Type: ApplicationFiled: September 21, 2023Publication date: April 11, 2024Inventors: Jung-Chieh Chang, Yi-Sheng Chen, Jen-Yung Hsiao, Chia-Fu Hsiao, Wei-Qi Lao, Chen-Chih Chan, Chung-Yu Liu
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Patent number: 10702973Abstract: A coolant flow guide for grinder includes a base including a tilted bottom wall having a predetermined tilt angle, a peripheral wall disposed around the tilted bottom wall and defining with the tilted bottom wall a diversion channel having a top opening and a partition wall located on the tilted bottom wall to divide the diversion channel into two flow passages that slope downwardly to the diversion port, and a workpiece positioning unit mounted on the base above the flow passages for holding a workpiece. Thus, when the grinder is operated to grind the workpiece, the debris thus produced is carried by the applied coolant to flow through the flow passages to the outside of the base via the diversion port.Type: GrantFiled: March 1, 2018Date of Patent: July 7, 2020Assignee: HURISE CO., LTD.Inventors: Jung-Feng Chang, Jung-Sheng Chang
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Publication number: 20180272498Abstract: A coolant flow guide for grinder includes a base including a tilted bottom wall having a predetermined tilt angle, a peripheral wall disposed around the tilted bottom wall and defining with the tilted bottom wall a diversion channel having a top opening and a partition wall located on the tilted bottom wall to divide the diversion channel into two flow passages that slope downwardly to the diversion port, and a workpiece positioning unit mounted on the base above the flow passages for holding a workpiece. Thus, when the grinder is operated to grind the workpiece, the debris thus produced is carried by the applied coolant to flow through the flow passages to the outside of the base via the diversion port.Type: ApplicationFiled: March 1, 2018Publication date: September 27, 2018Inventors: Jung-Feng CHANG, Jung-Sheng CHANG
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Publication number: 20150209872Abstract: An elastic chuck includes a base plate, an elastic plate and jaws. The base plate has a through hole running between upper and lower surfaces thereof. The elastic plate has a fixing ring fixed to the base plate, a pulling block that can move along a central axis of the through hole, and holders radially extending from the pulling block toward the fixing ring. Each of the holders has a top surface facing the upper surface of the base plate across a radial gap. The jaws are mounted at top surfaces of the holders, respectively. The pulling block of the elastic plate receives a pulling force along the central axis to drive the jaws to hold a workpiece firmly. The elastic chuck has a simple structure and limited parts, so its process of manufacturing and assembling are time-saving and cost saving, and the resultant structure is highly precise.Type: ApplicationFiled: January 12, 2015Publication date: July 30, 2015Inventors: Jung-Feng CHANG, Jung-Sheng CHANG
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Publication number: 20070066182Abstract: A grinding machine includes an automated control system, a machine base, a chuck device, and two grinding devices for grinding both of an internal diameter and an end surface of a workpiece automatedly. The machine base is provided with rails thereon. A chuck device has an independent power source and a rotary chuck. The chuck device is mounted on the rail of the machine base to be controlled by the automated control system for transverse movement along the rail. The grinding devices are mounted on the rails of the machine base to be controlled by the automated control system for longitudinal movement along the rails respectively, having an internal diameter grinding tool and an end surface grinding tool respectively for grinding the internal diameter and the end surface of the workpiece respectively.Type: ApplicationFiled: September 21, 2005Publication date: March 22, 2007Inventors: Jung-Sheng Chang, Jung-Feng Chang
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Publication number: 20070066183Abstract: A grinding machine includes a sensor for detecting the variation of the current of a motor thereof to determine the timing that a grinding assembly thereof touches a workpiece. An automated control system computes the grinding path of the grinding assembly according to the timing. Thus, all of the workpieces are cut the same even though the workpieces are held at different positions on the chuck.Type: ApplicationFiled: September 21, 2005Publication date: March 22, 2007Inventors: Jung-Sheng Chang, Jung-Feng Chang