Patents by Inventor Chih-Hua Chang
Chih-Hua 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: 20240120337Abstract: A semiconductor device structure includes a first dielectric wall, a plurality of first semiconductor layers vertically stacked and extending outwardly from a first side of the first dielectric wall, each first semiconductor layer has a first width, a plurality of second semiconductor layers vertically stacked and extending outwardly from a second side of the first dielectric wall, each second semiconductor layer has a second width, a plurality of third semiconductor layers disposed adjacent the second side of the first dielectric wall, each third semiconductor layer has a third width greater than the second width, a first gate electrode layer surrounding at least three surfaces of each of the first semiconductor layers, the first gate electrode layer having a first conductivity type, and a second gate electrode layer surrounding at least three surfaces of each of the second semiconductor layers, the second gate electrode layer having a second conductivity type opposite the first conductivity type.Type: ApplicationFiled: January 15, 2023Publication date: April 11, 2024Inventors: Ta-Chun LIN, Chih-Hung HSIEH, Chun-Sheng LIANG, Wen-Chiang HONG, Chun-Wing YEUNG, Kuo-Hua PAN, Chih-Hao CHANG, Jhon Jhy LIAW
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Publication number: 20240113205Abstract: A method includes forming a first semiconductor fin and a second semiconductor fin in an n-type Fin Field-Effect (FinFET) region and a p-type FinFET region, respectively, forming a first dielectric fin and a second dielectric fin in the n-type FinFET region and the p-type FinFET region, respectively, forming a first epitaxy mask to cover the second semiconductor fin and the second dielectric fin, performing a first epitaxy process to form an n-type epitaxy region based on the first semiconductor fin, removing the first epitaxy mask, forming a second epitaxy mask to cover the n-type epitaxy region and the first dielectric fin, performing a second epitaxy process to form a p-type epitaxy region based on the second semiconductor fin, and removing the second epitaxy mask. After the second epitaxy mask is removed, a portion of the second epitaxy mask is left on the first dielectric fin.Type: ApplicationFiled: November 28, 2023Publication date: April 4, 2024Inventors: Chih-Chiang Chang, Ming-Hua Yu, Li-Li Su
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Publication number: 20240088279Abstract: A method for forming a semiconductor structure includes the steps of forming a stacked structure on a substrate, forming an insulating layer on the stacked structure, forming a passivation layer on the insulating layer, performing an etching process to form an opening through the passivation layer and the insulating layer to expose a portion of the stacked structure and an extending portion of the insulating layer, and forming a contact structure filling the opening and directly contacting the stacked structure, wherein the extending portion of the insulating layer is adjacent to a surface of the stacked structure directly contacting the contact structure.Type: ApplicationFiled: November 27, 2023Publication date: March 14, 2024Applicant: UNITED MICROELECTRONICS CORP.Inventors: Ming-Hua Chang, Po-Wen Su, Chih-Tung Yeh
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Publication number: 20240087953Abstract: A semiconductor device and method of formation are provided. The semiconductor device comprises a silicide layer over a substrate, a metal plug in an opening defined by a dielectric layer over the substrate, a first metal layer between the metal plug and the dielectric layer and between the metal plug and the silicide layer, a second metal layer over the first metal layer, and an amorphous layer between the first metal layer and the second metal layer.Type: ApplicationFiled: November 22, 2023Publication date: March 14, 2024Inventors: Yu-Hung Lin, Sheng-Hsuan Lin, Chih-Wei Chang, You-Hua Chou
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Patent number: 11927303Abstract: A wearable device includes a host, a first belt, a second belt, a circuit board, a cable, and an adjustment mechanism. The first belt, one end of which is connected to a first side of the host, has a cable holding part. One end of the second belt is connected to a second side of the host. The circuit board is disposed at an overlap of the first belt and the second belt. A first end and a second end opposite to each other of the cable are connected to the circuit board and the first side respectively, and a holding section of the cable is fixed to the cable holding part. The adjusting mechanism is disposed at an overlap of the first belt and the second belt to adjust an overlapping length of the first belt and the second belt.Type: GrantFiled: July 25, 2022Date of Patent: March 12, 2024Assignee: HTC CorporationInventors: Tsen-Wei Kung, Chung-Ju Wu, Tsung Hua Yang, Chih-Yao Chang, Wei Te Tu
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Publication number: 20240079447Abstract: Semiconductor structures and methods for manufacturing the same are provided. The semiconductor structure includes a first stack structure formed over a substrate, and the first stack structure includes a plurality of nanostructures that extend along a first direction. The semiconductor structure includes a second stack structure formed adjacent to the first stack structure, and the second stack structure includes a plurality of nanostructures that extend along the first direction. The semiconductor structure includes a first gate structure formed over the first stack structure, and the first gate structure extends along a second direction. The semiconductor structure also includes a dielectric wall between the first stack structure and the second stack structure, and the dielectric wall includes a low-k dielectric material, and the dielectric wall is connected to the first stack structure and the second stack structure.Type: ApplicationFiled: February 3, 2023Publication date: March 7, 2024Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Ta-Chun LIN, Chun-Sheng LIANG, Kuo-Hua PAN, Chih-Hao CHANG, Jhon-Jhy LIAW
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Publication number: 20240079392Abstract: A semiconductor structure includes a first tier, a redistribution circuit structure, and a second tier. The first tier includes at least one first die. The redistribution circuit structure is disposed on the first tier and electrically coupled to the at least one first die, where the redistribution circuit structure has a multi-layer structure and includes a vertical connection structure continuously extending from a first side of the redistribution circuit structure to a second side of the redistribution circuit structure, and the first side is opposite to the second side along a stacking direction of the first tier and the redistribution circuit structure. The second tier includes a plurality of second dies, and is disposed on and electrically coupled to the redistribution circuit structure.Type: ApplicationFiled: January 10, 2023Publication date: March 7, 2024Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chuei-Tang WANG, Tso-Jung Chang, Jeng-Shien Hsieh, Shih-Ping Lin, Chih-Peng Lin, Chieh-Yen Chen, Chen-Hua Yu
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Patent number: 11916282Abstract: An antenna apparatus includes a feeding antenna inside an electronic device and one or more antenna elements, such as a floating metal antenna, disposed on a rear cover of the electronic device. The floating metal antenna and a feeding antenna inside the electronic device may form a coupling antenna structure. The feeding antenna may be an antenna fastened on an antenna support (which may be referred to as a support antenna). The feeding antenna may alternatively be a slot antenna formed by slitting on a metal middle frame of the electronic device. The antenna apparatus may be implemented in limited design space, thereby effectively saving antenna design space inside the electronic device. The antenna apparatus may generate excitation of a plurality of resonance modes, so that antenna bandwidth and radiation characteristics can be improved.Type: GrantFiled: November 5, 2019Date of Patent: February 27, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Pengfei Wu, Chien-Ming Lee, Dong Yu, Chih Yu Tsai, Chih-Hua Chang, Arun Sowpati
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Patent number: 11688930Abstract: An antenna apparatus includes two feeding parts, a filter matching network, and a radiator. The filter matching network includes a first port, a second port, and a third port. A first feeding part is electrically connected to the first port, a second feeding part is electrically connected to the second port, and the radiator is electrically connected to the third port. The first feeding part is configured to feed a low frequency signal and an intermediate frequency signal, the second feeding part is configured to feed a high frequency signal, the low frequency signal, the intermediate frequency signal, and the high frequency signal are respectively fed into the filter matching network by using the first feeding part and the second feeding part, and the filter matching network is configured to improve isolation between the low frequency signal and the intermediate frequency signal, and the high frequency signal.Type: GrantFiled: May 8, 2018Date of Patent: June 27, 2023Assignee: Huawei Technologies Co., Ltd.Inventors: Chih-Hua Chang, Chien-Ming Lee, Dong Yu, Hanyang Wang, Yen-Cheng Lai
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Patent number: 11362711Abstract: An antenna selection method includes selecting M1 antenna sets from CN-L1L2 antenna combinations, where L1 is a quantity of reserved antennas, a sum of L1 and L2 is equal to L, determining an antenna set with a maximum channel capacity, in M2 antenna sets, as a target antenna set to perform a preset-duration data transmission, where the M2 antenna sets are antenna sets formed by the M1 antenna sets and the L1 reserved antennas. The L1 reserved antennas include a maximum SNR in a target antenna set used in previous preset-duration data transmission. Each of the M2 antenna sets includes the L1 reserved antennas.Type: GrantFiled: December 3, 2018Date of Patent: June 14, 2022Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Chih-Hua Chang, Chien-Jen Huang, Chien-Ming Lee, Yuan-Hao Lan
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Publication number: 20220077904Abstract: An antenna selection method includes selecting M1 antenna sets from CN?L1L2 antenna combinations, where L1 is a quantity of reserved antennas, a sum of L1 and L2 is equal to L, determining an antenna set with a maximum channel capacity, in M2 antenna sets, as a target antenna set to perform a preset-duration data transmission, where the M2 antenna sets are antenna sets formed by the M1 antenna sets and the L1 reserved antennas. The L1 reserved antennas include a maximum SNR in a target antenna set used in previous preset-duration data transmission. Each of the M2 antenna sets includes the L1 reserved antennas.Type: ApplicationFiled: December 3, 2018Publication date: March 10, 2022Inventors: Chih-Hua Chang, Chien-Jen Huang, Chien-Ming Lee, Yuan-Hao Lan
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Publication number: 20210376452Abstract: An antenna apparatus includes a feeding antenna inside an electronic device and one or more antenna elements, such as a floating metal antenna, disposed on a rear cover of the electronic device. The floating metal antenna and a feeding antenna inside the electronic device may form a coupling antenna structure. The feeding antenna may be an antenna fastened on an antenna support (which may be referred to as a support antenna). The feeding antenna may alternatively be a slot antenna formed by slitting on a metal middle frame of the electronic device. The antenna apparatus may be implemented in limited design space, thereby effectively saving antenna design space inside the electronic device. The antenna apparatus may generate excitation of a plurality of resonance modes, so that antenna bandwidth and radiation characteristics can be improved.Type: ApplicationFiled: November 5, 2019Publication date: December 2, 2021Inventors: Pengfei WU, Chien-Ming LEE, Dong YU, Chih Yu TSAI, Chih-Hua CHANG, Arun SOWPATI
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Patent number: 11114746Abstract: A terminal includes a conductive substrate and a printed circuit board that are disposed opposite to each other, a first slot is disposed in a direction from a first side edge of the conductive substrate to a center of the conductive substrate, and a projection of the printed circuit board on the conductive substrate is located inside the conductive substrate, and a first feeder is disposed inside the first slot, a first connection end of the first feeder is coupled to a lap joint of the first side edge, a second connection end of the first feeder is coupled to a first feeding source on the printed circuit board, and projections of the lap joint of the first side edge and the first feeding source on the conductive substrate are located on two sides of the first slot.Type: GrantFiled: September 29, 2016Date of Patent: September 7, 2021Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Hanyang Wang, Chih-Wei Hsu, Chih-Hua Chang, Chien-Ming Lee
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Publication number: 20210075089Abstract: An antenna apparatus includes two feeding parts, a filter matching network, and a radiator. The filter matching network includes a first port, a second port, and a third port. A first feeding part is electrically connected to the first port, a second feeding part is electrically connected to the second port, and the radiator is electrically connected to the third port. The first feeding part is configured to feed a low frequency signal and an intermediate frequency signal, the second feeding part is configured to feed a high frequency signal, the low frequency signal, the intermediate frequency signal, and the high frequency signal are respectively fed into the filter matching network by using the first feeding part and the second feeding part, and the filter matching network is configured to improve isolation between the low frequency signal and the intermediate frequency signal, and the high frequency signal.Type: ApplicationFiled: May 8, 2018Publication date: March 11, 2021Inventors: Chih-Hua Chang, Chien-Ming Lee, Dong Yu, Hanyang Wang, Yen-Cheng Lai
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Patent number: 10910726Abstract: This application discloses a slot antenna and a terminal. The slot antenna includes a ground plane, an open slot disposed on the ground plane, a slot feeder, and a resonant circuit. The resonant circuit effectively excites a current on a surface of the ground plane, so that the ground plane becomes a primary radiator, and the antenna is a secondary radiator. Therefore, a volume of the antenna can be reduced without affecting radiation efficiency of the antenna.Type: GrantFiled: December 24, 2015Date of Patent: February 2, 2021Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Chih-Hua Chang, Chien-Ming Lee, Hanyang Wang, Yen-Cheng Lai, Yu Chan Yang
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Publication number: 20200127385Abstract: Embodiments of the present invention relate to the field of antenna technologies, and provide a mobile terminal, to generate different resonance frequencies. The slot antenna includes a system circuit board, a radiator, and a first adjustable unit. The radiator is opposite to the electric conductor to form a slot. A feeding end is disposed on the system circuit board, the feeding end is electrically connected to the radiator, one end of the first adjustable unit is connected to the system circuit board, the other end of the first adjustable unit is connected to the radiator, and the first adjustable unit is configured to adjust a resonance frequency of the slot antenna.Type: ApplicationFiled: December 17, 2019Publication date: April 23, 2020Inventors: Hanyang Wang, Lijun Ying, Xuefei Zhang, Chien-Ming Lee, Dong Yu, Liang Xue, Lei Wang, Chih-Hua Chang
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Patent number: 10547114Abstract: Embodiments of the present invention relate to the field of antenna technologies, and provide a slot antenna and a mobile terminal, to generate different resonance frequencies, so as to cover required bands. The slot antenna includes a system circuit board, a grounding conductor, a radiator, and a first adjustable unit. The system circuit board is connected to the grounding conductor to form an electric conductor, and the radiator is opposite to the electric conductor to form a slot. A feeding end is disposed on the system circuit board, the feeding end is electrically connected to the radiator, one end of the first adjustable unit is connected to the system circuit board, the other end of the first adjustable unit is connected to the radiator, and the first adjustable unit is configured to adjust a resonance frequency of the slot antenna.Type: GrantFiled: April 16, 2015Date of Patent: January 28, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Hanyang Wang, Lijun Ying, Xuefei Zhang, Chien-Ming Lee, Dong Yu, Liang Xue, Lei Wang, Chih-Hua Chang
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Publication number: 20190356041Abstract: A terminal includes a conductive substrate and a printed circuit board that are disposed opposite to each other, a first slot is disposed in a direction from a first side edge of the conductive substrate to a center of the conductive substrate, and a projection of the printed circuit board on the conductive substrate is located inside the conductive substrate, and a first feeder is disposed inside the first slot, a first connection end of the first feeder is coupled to a lap joint of the first side edge, a second connection end of the first feeder is coupled to a first feeding source on the printed circuit board, and projections of the lap joint of the first side edge and the first feeding source on the conductive substrate are located on two sides of the first slot.Type: ApplicationFiled: September 29, 2016Publication date: November 21, 2019Inventors: Hanyang Wang, Chih-Wei Hsu, Chih-Hua Chang, Chien-Ming Lee
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Publication number: 20190013588Abstract: This application discloses a slot antenna and a terminal. The slot antenna includes a ground plane, an open slot disposed on the ground plane, a slot feeder, and a resonant circuit. The resonant circuit effectively excites a current on a surface of the ground plane, so that the ground plane becomes a primary radiator, and the antenna is a secondary radiator. Therefore, a volume of the antenna can be reduced without affecting radiation efficiency of the antenna.Type: ApplicationFiled: December 24, 2015Publication date: January 10, 2019Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Chih-Hua CHANG, CHIEN-MING LEE, Hanyang WANG, Yen-Cheng LAI, Yu Chan YANG
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Publication number: 20180138598Abstract: Embodiments of the present invention relate to the field of antenna technologies, and provide a slot antenna and a mobile terminal, to generate different resonance frequencies, so as to cover required bands. The slot antenna includes a system circuit board, a grounding conductor, a radiator, and a first adjustable unit. The system circuit board is connected to the grounding conductor to form an electric conductor, and the radiator is opposite to the electric conductor to form a slot. A feeding end is disposed on the system circuit board, the feeding end is electrically connected to the radiator, one end of the first adjustable unit is connected to the system circuit board, the other end of the first adjustable unit is connected to the radiator, and the first adjustable unit is configured to adjust a resonance frequency of the slot antenna.Type: ApplicationFiled: April 16, 2015Publication date: May 17, 2018Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Hanyang WANG, Lijun YING, Xuefei ZHANG, Jianming LI, Dong YU, Liang XUE, Lei WANG, Chih-Hua CHANG