Patents by Inventor Chang Fa On
Chang Fa On 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: 20240009619Abstract: A heating system for compressed parts capable of controlling process atmosphere and pressure includes an accommodating body, a heating device, an atmosphere controlling device, and a processing pressure adjusting device. The heating device is disposed inside or outside of the accommodating body to heat a component to be heated, so as to remove an impurity within the component to be heated. The atmosphere controlling device transports a reaction gas, such as hydrogen, oxygen, water vapor, or plasma, into a cavity for reacting with the impurity within the component to be heated. A phase transition or a chemical reaction can be carried out, such that the impurity is gasified, oxidized, carbonized, or disintegrated. The processing pressure adjusting device uses an inert gas (e.g., a nitrogen gas or an argon gas) to control the processing pressure in the cavity to be from 800 Torr to 10?2 Torr.Type: ApplicationFiled: July 10, 2023Publication date: January 11, 2024Inventors: MING-HUI YU, CHANG-FA CHEN, CHIA-JUNG KAO, REN-WEN SHIU
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Publication number: 20210174770Abstract: A point of sale (POS) device (400) includes a primary display (102) to illustrate content in a first direction, and a secondary display (104) to reflect a first content illustrated from a first section of the primary display (102), wherein the first content is reflected in a second direction opposite to the first direction.Type: ApplicationFiled: August 30, 2018Publication date: June 10, 2021Applicant: Hewlett-Packard Development Company, L.P.Inventors: Zhang-Bin Lin, Jie-Ming Jiang, Chang-Fa Xu
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Patent number: 10811761Abstract: A tag antenna structure of an information carrier includes a carrying sheet and a tag antenna disposed on the carrying sheet. An outer lateral edge of the carrying sheet is symmetrical to a first central axis, and a distance between the outer lateral edge of the carrying sheet and the first central axis is defined as a first outer radius. The tag antenna includes an annular segment and two extending segments respectively extending from two end portions of the annular segment. An outer lateral edge of the annular segment is symmetrical to a second central axis, and a distance between the outer lateral edge of the annular segment and the second central axis is defined as a second outer radius that is smaller than the first outer radius. The second central axis and the first central axis have an offset distance there-between that is larger than zero.Type: GrantFiled: October 1, 2018Date of Patent: October 20, 2020Assignee: AUDEN TECHNO CORP.Inventors: Chang-Fa Yang, An-Yao Hsiao, Chen-Pang Chao, Cheng-Han Tsai
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Patent number: 10649336Abstract: A system for fabricating a semiconductor device includes a first supplier, a second supplier, a mixer, and an applier. The first supplier is configured to supply a developer solution having a first chemical. The second supplier is configured to supply the second chemical to the mixer. The mixer is configured to mix the developer solution with a second chemical, in which the second chemical is configured to form a plurality of bubbles in the developer solution. The applier is configured to apply the developer solution mixed with the bubbles onto a photoresist layer formed on a substrate, in which the photoresist layer has an exposed region, and the first chemical is configured to dissolve the exposed region of the photoresist layer through a chemical reaction.Type: GrantFiled: September 30, 2015Date of Patent: May 12, 2020Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Jun-Yih Yu, Chang-Fa Lin, Ching-Hung Cheng, Yi-Chuan Lo, Ming-Hsuan Chuang
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Publication number: 20200106154Abstract: A tag antenna structure of an information carrier includes a carrying sheet and a tag antenna disposed on the carrying sheet. An outer lateral edge of the carrying sheet is symmetrical to a first central axis, and a distance between the outer lateral edge of the carrying sheet and the first central axis is defined as a first outer diameter. The tag antenna includes an annular segment and two extending segments respectively extending from two end portions of the annular segment. An outer lateral edge of the annular segment is symmetrical to a second central axis, and a distance between the outer lateral edge of the annular segment and the second central axis is defined as a second outer diameter that is smaller than the first outer diameter. The second central axis and the first central axis have an offset distance there-between that is larger than zero.Type: ApplicationFiled: October 1, 2018Publication date: April 2, 2020Inventors: CHANG-FA YANG, An-Yao Hsiao, Chen-Pang Chao, Cheng-Han Tsai
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Patent number: 10581205Abstract: A high-frequency ultra-fine coaxial RF connection member as well as the high-frequency ultra-fine coaxial RF jumper and the receptor connector thereof deliver a high-frequency RF signal by direct electrical contact of an end of a cable central conductor of a coaxial cable with a circuit substrate. Furthermore, the receptor connector of the high-frequency ultra-fine coaxial RF connection member limits a cable end connector through a receptor metal cover, thereby reducing an entire height of the high-frequency ultra-fine coaxial RF connection member, to meet requirement of thinned high-frequency ultra-fine coaxial RF connection members.Type: GrantFiled: August 17, 2018Date of Patent: March 3, 2020Assignee: HARUMOTO TECHNOLOGY (SHEN ZHEN) CO., LTD.Inventors: Chang-Fa Yang, Hsin-Fu Li, Ming-Jie Goa
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Patent number: 10418714Abstract: In an electronic switching beamforming antenna array, a coplanar feeding line of the antenna array is configured on a metal plane of a substrate, and a plurality of slot antennas of aforementioned antenna array are inclinedly configured on the metal plane and configured on at least one side of the coplanar feeding line. A slot coupling segment of slot antenna is configured at one end of the slot antenna and neighbored with the coplanar feeding line so as to make the slot antenna couple with the coplanar feeding line, and a switch device of the slot antenna is configured at one portion which between one part of the slot antenna and a grounding plane formed by the metal plane. When the switch device is triggered to configure a radiating feature of the slot antenna, the antenna array is able to achieve the purpose of setting beamforming direction.Type: GrantFiled: February 22, 2017Date of Patent: September 17, 2019Assignee: Chunghwa Telecom Co., Ltd.Inventors: Wen-Jiao Liao, Yan-Yun Lin, Chang-Fa Yang, Chang-Lun Liao
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Patent number: 10395074Abstract: An antenna structure of an RFID reader includes a carrying plate defining four quadrants and an antenna module disposed on the carrying plate. The antenna module includes a feeding antenna and a grounding antenna. The feeding antenna includes a feeding connecting segment, two feeding transmitting segments connected to the feeding connecting segment, and two feeding radiating segments respectively connected to the two feeding transmitting segments. The grounding antenna includes a grounding connecting segment, two grounding transmitting segments connected to the grounding connecting segment, and two grounding radiating segments respectively connected to the two grounding transmitting segments.Type: GrantFiled: September 28, 2018Date of Patent: August 27, 2019Assignee: AUDEN TECHNO CORP.Inventors: Chang-Fa Yang, An-Yao Hsiao, Chen-Pang Chao, Cheng-Han Tsai
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Publication number: 20190058291Abstract: A high-frequency ultra-fine coaxial RF connection member as well as the high-frequency ultra-fine coaxial RF jumper and the receptor connector thereof deliver a high-frequency RF signal by direct electrical contact of an end of a cable central conductor of a coaxial cable with a circuit substrate, and is designed for a structure of the high-frequency ultra-fine coaxial RF connection member, such that a perfect shielding environment is provided for transmission of the high-frequency RF signal, and in turn, electromagnetic coupling interference in transmission of the high-frequency RF signal is reduced effectively, and may even be used for transmission of high-frequency RF signals in the bands of 67 GHz and above.Type: ApplicationFiled: August 17, 2018Publication date: February 21, 2019Inventors: CHANG-FA YANG, HSIN-FU LI, MING-JIE GOA
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Patent number: 10074941Abstract: A high-speed connector includes an insulating body, an insulating cap, two terminal sets and two shielding sheets. The insulating body includes a body portion and a tongue plate. The tongue plate divides the interior of the body portion into two accommodating spaces. The insulating cap is fitted around the front end of the tongue plate of the insulating body. Each of the two terminal sets includes a terminal base and a plurality of terminals. The two shielding sheets are disposed on one side of each of the two terminal sets respectively. A plurality of ground ports is disposed on one side of each shielding sheet respectively, in which the plurality of ground ports contacts the plurality of ground terminals of the plurality of terminals of each terminal set so that the two shielding sheets form ground shielding with the ground terminals of each terminal set respectively.Type: GrantFiled: January 10, 2018Date of Patent: September 11, 2018Assignee: NEXTRONICS ENGINEERING CORP.Inventors: Hou-An Su, Hung-Wei Hsu, Chang-Fa Yang, Xiao-Qiong Liao, Mei-Jie Zhou
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Publication number: 20180045466Abstract: A gas exhausting system includes at least two gas exhausting modules. The at least two gas exhausting modules are disposed on a heating furnace, and arranged at a front position and a rear position separately along a transporting direction of the heating furnace. Each gas exhausting module has a casing and an exhausting channel. The exhausting channel is arranged in the casing, and has an opening end. The opening end of the exhausting channel is lower than the second end of the casing. The exhausting channel is connected to a blowing machine. When the blowing machine is driven, gas is propelled into the exhausting channel, and hyperbaric gas can be exhausted upward from the opening end of the exhausting channel. The gas with higher flow velocity can provide a siphonic action, so as to accelerate gas to be exhausted from the heating furnace.Type: ApplicationFiled: August 15, 2017Publication date: February 15, 2018Inventors: MING-HUI YU, A-TZU CHEN, WANG-TSUNG LIANG, CHANG-FA CHEN
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Publication number: 20180019519Abstract: In an electronic switching beamforming antenna array, a coplanar feeding line of the antenna array is configured on a metal plane of a substrate, and a plurality of slot antennas of aforementioned antenna array are inclinedly configured on the metal plane and configured on at least one side of the coplanar feeding line. A slot coupling segment of slot antenna is configured at one end of the slot antenna and neighbored with the coplanar feeding line so as to make the slot antenna couple with the coplanar feeding line, and a switch device of the slot antenna is configured at one portion which between one part of the slot antenna and a grounding plane formed by the metal plane. When the switch device is triggered to configure a radiating feature of the slot antenna, the antenna array is able to achieve the purpose of setting beamforming direction.Type: ApplicationFiled: February 22, 2017Publication date: January 18, 2018Inventors: Wen-Jiao Liao, Yan-Yun Lin, Chang-Fa Yang, Chang-Lun Liao
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Patent number: 9711849Abstract: An antenna reconfigurable circuit changes patterns of a multiple-antenna system and includes a feed portion which an electrical signal is fed to; a plurality of power distribution links coupled between the feed portion and the antennas to form therebetween paths of transmission of the electrical signal; and switching units disposed at the power distribution links, respectively, to selectively disable or enable the paths. The switching units enable the antennas to change patterns and enhance signal reception quality. Furthermore, the antenna reconfigurable circuits are printed circuits instead of lumped elements and thereby maintain response characteristics, response stability and production yield of the antenna reconfigurable circuits.Type: GrantFiled: February 19, 2016Date of Patent: July 18, 2017Assignee: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Wen-Shyh Chen, Yu-Tse Lin, Chang-Fa Yang, Wei-Shiuan Chang
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Publication number: 20170092497Abstract: A system for fabricating a semiconductor device includes a first supplier, a second supplier, a mixer, and an applier. The first supplier is configured to supply a developer solution having a first chemical. The second supplier is configured to supply the second chemical to the mixer. The mixer is configured to mix the developer solution with a second chemical, in which the second chemical is configured to form a plurality of bubbles in the developer solution. The applier is configured to apply the developer solution mixed with the bubbles onto a photoresist layer formed on a substrate, in which the photoresist layer has an exposed region, and the first chemical is configured to dissolve the exposed region of the photoresist layer through a chemical reaction.Type: ApplicationFiled: September 30, 2015Publication date: March 30, 2017Inventors: Jun-Yih YU, Chang-Fa LIN, Ching-Hung CHENG, Yi-Chuan LO, Ming-Hsuan CHUANG
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Patent number: 9520678Abstract: A signal transmission connector includes an insulating body, a plurality of first terminals, a plurality of second terminals, and a rear casing. The insulating body has a dielectric constant of about 3 to 3.4. The first and second terminals are disposed on the insulating body. The first and second terminals have widths of about 0.36 to 0.42 mm. The rear casing is assembled at the second end of the insulating body. The rear casing envelops the first and the second terminals. The rear casing has a dielectric constant of about 3.5 to 3.8. The connector provides adjustable impedance without modifications to the terminal structures and also reduces cost.Type: GrantFiled: November 23, 2015Date of Patent: December 13, 2016Assignee: NEXTRONICS ENGINEERING CORP.Inventors: Hou-An Su, Hung-Wei Hsu, Chang-Fa Yang, Huai-Sheng Wang
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Publication number: 20160079709Abstract: A signal transmission connector includes an insulating body, a plurality of first terminals, a plurality of second terminals, and a rear casing. The insulating body has a dielectric constant of about 3 to 3.4. The first and second terminals are disposed on the insulating body. The first and second terminals have widths of about 0.36 to 0.42 mm. The rear casing is assembled at the second end of the insulating body. The rear casing envelops the first and the second terminals. The rear casing has a dielectric constant of about 3.5 to 3.8. The connector provides adjustable impedance without modifications to the terminal structures and also reduces cost.Type: ApplicationFiled: November 23, 2015Publication date: March 17, 2016Inventors: HOU-AN SU, HUNG-WEI HSU, CHANG-FA YANG, HUAI-SHENG WANG
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Publication number: 20150155665Abstract: A signal transmission connector includes an insulating body, a plurality of first terminals, a plurality of second terminals, and a rear casing. The insulating body has a dielectric constant of about 3 to 3.4. The first and second terminals are disposed on the insulating body. The first and second terminals have widths of about 0.36 to 0.42 mm. The rear casing is assembled at the second end of the insulating body. The rear casing envelops the first and the second terminals. The rear casing has a dielectric constant of about 3.5 to 3.8. The connector provides adjustable impedance without modifications to the terminal structures and also reduces cost.Type: ApplicationFiled: January 18, 2014Publication date: June 4, 2015Applicant: NEXTRONICS ENGINEERING CORP.Inventors: HOU-AN SU, HUNG-WEI HSU, CHANG-FA YANG, HUAI- SHENG WANG
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Publication number: 20140117005Abstract: A diffusion furnace in the shape of polygonal-prism, including two end frame plates arranged in opposite basal planes of the diffusion furnace and a plurality of heating panels connected between the two end frame plates. Each heating panel includes at least one beam connected between the two end frame plates and a plurality of heating block interconnected in succession along and secured to the respective beam. Each heating block includes a block body, at least one heating element arranged on one side of the block body and amounting assembly mounted on the opposite side of the block body for securing the heating element. Thus, the disclosed diffusion furnace can be customized to satisfy different measurements requirement and can be easily decomposed for repair.Type: ApplicationFiled: January 6, 2014Publication date: May 1, 2014Applicant: TANGTECK EQUIPMENT INC.Inventors: MING-HUI YU, CHIA-JUNG KAO, A-TZU CHEN, WANG-TSUNG LIANG, CHANG-FA CHEN
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Publication number: 20130040258Abstract: The instant disclosure relates to an improved heating chamber of a heating device having a non-reactive surface layer. The heating chamber includes at least one metal layer and at least one non-reactive disposed thereon. The improved heating chamber is protected against reacting chemically during the thermal treatment process, and has better anti-corrosion capability. The heating chamber is also protected against cracking. Therefore, the service life of the heating chamber is extended. A heating device having improved heating chamber and at least one method of forming the non-reactive layer are also disclosed.Type: ApplicationFiled: August 11, 2011Publication date: February 14, 2013Applicant: TANGTECK EQUIPMENT INC.Inventors: MING-HUI YU, A-TZU CHEN, CHANG-FA CHEN, WANG-TSUNG LIANG, LIANG-JAN CHANG
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Patent number: 8250740Abstract: In a method for making an inspection fixture, a detachable mold assembly and a hardenable fluid are firstly prepared. Secondly, the hardenable fluid is poured into the mold assembly, and a plurality of molding pins are inserted into the mold assembly. Thirdly, a main body with a plurality of positioning holes corresponding to the molding pins (i.e., the locations thereof) are formed in the mold after the hardenable fluid hardens. Fourthly, the mold assembly is detached, and the part is removed from the mold. Finally, a plurality of positioning pins is mounted into the positioning holes of the molded part, the positioning holes having remained upon removal of the molding pins.Type: GrantFiled: March 3, 2011Date of Patent: August 28, 2012Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., FIH (Hong Kong) LimitedInventors: Ping Chen, Lei Li, Yan-Hua Xing, Wen-Quan Xu, Chang-Fa Sun, Lin-Sen Dong