Patents by Inventor Chen-Chia Yang
Chen-Chia Yang 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: 11961919Abstract: A method of forming a semiconductor device includes: forming a fin protruding above a substrate, where a top portion of the fin comprises a layer stack that includes alternating layers of a first semiconductor material and a second semiconductor material; forming a dummy gate structure over the fin; forming openings in the fin on opposing sides of the dummy gate structure; forming source/drain regions in the openings; removing the dummy gate structure to expose the first semiconductor material and the second semiconductor material under the dummy gate structure; performing a first etching process to selectively remove the exposed first semiconductor material, where after the first etching process, the exposed second semiconductor material form nanostructures, where each of the nanostructures has a first shape; and after the first etching process, performing a second etching process to reshape each of the nanostructures into a second shape different from the first shape.Type: GrantFiled: March 21, 2022Date of Patent: April 16, 2024Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Cheng-Chung Chang, Hsiu-Hao Tsao, Ming-Jhe Sie, Shun-Hui Yang, Chen-Huang Huang, An Chyi Wei, Ryan Chia-Jen Chen
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Publication number: 20240096705Abstract: A semiconductor device includes a plurality of channel layers vertically separated from one another. The semiconductor device also includes an active gate structure comprising a lower portion and an upper portion. The lower portion wraps around each of the plurality of channel layers. The semiconductor device further includes a gate spacer extending along a sidewall of the upper portion of the active gate structure. The gate spacer has a bottom surface. Moreover, a dummy gate dielectric layer is disposed between the gate spacer and a topmost channel layer of plurality of channel layers. The dummy gate dielectric layer is in contact with a top surface of the topmost channel layer, the bottom surface of the gate spacer, and the sidewall of the gate structure.Type: ApplicationFiled: November 30, 2023Publication date: March 21, 2024Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Kuei-Yu Kao, Chen-Yui Yang, Hsien-Chung Huang, Chao-Cheng Chen, Shih-Yao Lin, Chih-Chung Chiu, Chih-Han Lin, Chen-Ping Chen, Ke-Chia Tseng, Ming-Ching Chang
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Patent number: 8587172Abstract: A sensor fastening method and a sensor fastening frame for use therewith are provided. The sensor fastening frame is coupled to a motor stator of a brushless motor having distributed coils and extends over the distributed coils to allow the sensor fastening frame to rotate about the axle of a motor rotor, without interference with the distributed coils. At least a sensor is fastened in position to the sensor fastening frame proximate to one end of the axle of the motor stator for positioning the sensor to detect magnetic field variations of the motor rotor.Type: GrantFiled: January 23, 2009Date of Patent: November 19, 2013Assignee: System General CorporationInventors: Shih-Jen Yang, Hung-Sen Tu, I-Hsing Chen, Chen-Chia Yang, Chung-En Chen
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Patent number: 8508091Abstract: An end cover adapted to engage with an end surface of a spindle of a motor rotor is proposed for securely coupling to the spindle with a plurality of permanent magnets disposed around the peripheral wall of the spindle. The end cover has a first surface facing an end surface of the spindle and an second surface opposing to the first surface, which is formed with a plurality of inserting slots indentedly disposed around the rim thereof and corresponding to the permanent magnets for coupling the ends of the permanent magnets, thereby securely fastening each of the permanent magnets to the spindle of the motor rotor. Further, the present invention further provides a motor rotor having the end covers described above.Type: GrantFiled: December 30, 2008Date of Patent: August 13, 2013Assignee: System General CorporationInventors: Shih-Jen Yang, Hung-Sen Tu, I-Hsing Chen, Chen-Chia Yang, Chung-En Chen
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Patent number: 8384262Abstract: A motor rotor includes an annular body and a plurality of magnetic bodies installed on an inner lateral surface of the annular body in an irregular manner, to prevent a rotating motor from generating a cogging effect, disperse the frequency of the cogging torque, and reduce the amplitude. Accordingly, noises generated while the motor is operating are reduced, the periodicity of a cogging torque is changed, and cogging torque is reduced.Type: GrantFiled: June 17, 2010Date of Patent: February 26, 2013Assignee: Fairchild Semiconductor IncorporatedInventors: Shih-Jen Yang, Hung-Sen Tu, Chen-Chia Yang
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Publication number: 20120082955Abstract: A saliva suction system includes a suction head, a container, a pump, a controller and two tubes. The suction head has an outline fitting a lower jaw. The suction head is provided with a plurality of inlet holes and an outlet hole. The inlet holes communicate with the outlet hole. The tubes are separately disposed between the pump and the suction head and between the pump and the container. The controller makes the pump turn on or off. The saliva suction system further includes a timer and a sensor for automatic or intermittent control.Type: ApplicationFiled: September 30, 2010Publication date: April 5, 2012Inventor: Chen-Chia Yang
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Publication number: 20120025655Abstract: A motor rotor includes an annular body and a magnetic body installed on an inner lateral surface of the annular body. The magnetic body has a first curved surface and a second curved surface opposing the first curved surface. The magnetic body props against the inner lateral surface of the annular body via the first curved surface. The first curved surface has a first curvature less than a second curvature of the second curved surface. Because the magnetic body of the motor rotor has an uneven thickness, and an air gap interval formed between the motor rotor and the stator also has an uneven width, forces applied to a region where the magnetic forces change directions are smooth. Therefore, the vibration of the whole motor is reduced, and the noises are suppressed effectively.Type: ApplicationFiled: July 29, 2010Publication date: February 2, 2012Applicant: SYSTEM GENERAL CORPORATIONInventors: Shih-Jen Yang, Chen-Chia Yang, Chung-En CHEN
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Publication number: 20110309705Abstract: A motor rotor includes an annular body and a plurality of magnetic bodies installed on an inner lateral surface of the annular body in an irregular manner, to prevent a rotating motor from generating a cogging effect, disperse the frequency of the cogging torque, and reduce the amplitude. Accordingly, noises generated while the motor is operating are reduced, the periodicity of a cogging torque is changed, and cogging torque is reduced.Type: ApplicationFiled: June 17, 2010Publication date: December 22, 2011Applicant: FAIRCHILD SEMICONDUCTOR INCORPORATEDInventors: Shih-Jen Yang, Hung-Sen Tu, Chen-Chia Yang
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Patent number: 7723887Abstract: A motor rotor is provided. The motor rotor includes a plurality of magnetic members circumferentially disposed on a peripheral wall surface of a turning axle of the motor rotor, and both end surfaces of the turning axle are coupled with fastening members respectively; each of the magnetic members has a first fastening portion formed at each of its two ends; and the fastening member is provided with a plurality of second fastening portions corresponding in position to the first fastening portions, such that each of the magnetic members are firmly fixed in position to the turning axle.Type: GrantFiled: May 15, 2008Date of Patent: May 25, 2010Assignee: System General CorporationInventors: Shih-Jen Yang, Hung-Sen Tu, I-Hsing Chen, Chen-Chia Yang
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Publication number: 20100109465Abstract: A motor structure and a fan are provided. The motor structure includes a shaft, a motor control panel, a stator, a rotor and a motor housing. The motor control panel has a first fastening portion and is engageable with the shaft. The stator has a second fastening portion coupled to the first fastening portion so as to fasten the motor control panel to the stator, thereby reducing the overall size and saving costs of materials. The rotor corresponds in position to the stator and is pivotally connected to the shaft. The motor housing is pivotally connected to the shaft and encloses the shaft, the motor control panel, the stator, and the rotor. The fan includes the motor structure and a fan blade element.Type: ApplicationFiled: February 26, 2009Publication date: May 6, 2010Applicant: SYSTEM GENERAL CORPORATIONInventors: Shih-Jen Yang, Yung-Sheng Wu, Hung-Sen Tu, I-Hsing Chen, Chen-Chia Yang
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Publication number: 20090309441Abstract: A sensor fastening method and a sensor fastening frame for use therewith are provided. The sensor fastening frame is coupled to a motor stator of a brushless motor having distributed coils and extends over the distributed coils to allow the sensor fastening frame to rotate about the axle of a motor rotor, without interference with the distributed coils. At least a sensor is fastened in position to the sensor fastening frame proximate to one end of the axle of the motor stator for positioning the sensor to detect magnetic field variations of the motor rotor.Type: ApplicationFiled: January 23, 2009Publication date: December 17, 2009Applicant: SYSTEM GENERAL CORPORATIONInventors: Shih-Jen Yang, Hung-Sen Tu, I-Hsing Chen, Chen-Chia Yang, Chung-En Chen
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Publication number: 20090309448Abstract: An end cover adapted to engage with an end surface of a spindle of a motor rotor is proposed for securely coupling to the spindle with a plurality of permanent magnets disposed around the peripheral wall of the spindle. The end cover has a first surface facing an end surface of the spindle and an second surface opposing to the first surface, which is formed with a plurality of inserting slots indentedly disposed around the rim thereof and corresponding to the permanent magnets for coupling the ends of the permanent magnets, thereby securely fastening each of the permanent magnets to the spindle of the motor rotor. Further, the present invention further provides a motor rotor having the end covers described above.Type: ApplicationFiled: December 30, 2008Publication date: December 17, 2009Applicant: SYSTEM GENERAL CORPORATIONInventors: Shih-Jen Yang, Hung-Sen Tu, I-Hsing Chen, Chen-Chia Yang, Chung-En Chen
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Publication number: 20090195101Abstract: A motor rotor is provided. The motor rotor includes a plurality of magnetic members circumferentially disposed on a peripheral wall surface of a turning axle of the motor rotor, and both end surfaces of the turning axle are coupled with fastening members respectively; each of the magnetic members has a first fastening portion formed at each of its two ends; and the fastening member is provided with a plurality of second fastening portions corresponding in position to the first fastening portions, such that each of the magnetic members are firmly fixed in position to the turning axle.Type: ApplicationFiled: May 15, 2008Publication date: August 6, 2009Applicant: SYSTEM GENERAL CORPORATIONInventors: Shih-Jen Yang, Hung-Sen Tu, I-Hsing Chen, Chen-Chia Yang
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Patent number: D595740Type: GrantFiled: May 15, 2008Date of Patent: July 7, 2009Assignee: System General CorporationInventors: Shih-Jen Yang, Hung-Sen Tu, I-Hsing Chen, Chen-Chia Yang