Patents by Inventor Tzu Chang

Tzu 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).

  • Patent number: 11884249
    Abstract: The disclosure provides an anti-lock brake device including an oil pressure tank, a valve, and a movable component. The oil pressure tank has an accommodation space, an oil inlet channel, and an oil outlet channel connected to the accommodation space. The valve is slidably located in the oil inlet channel and for sealing or opening an oil inlet of the oil inlet channel. The movable component is located in the accommodation space and has a connecting channel corresponding to the oil inlet and an oil outlet of the oil outlet channel. When the movable component is slid to a depressurized position, the movable component is moved away from the valve for sealing the oil inlet, a first volume is produced between the connecting channel and the oil inlet, and a second volume, smaller than the first volume, is removed from between the connecting channel and the oil outlet.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: January 30, 2024
    Assignee: TEKTRO TECHNOLOGY CORPORATION
    Inventors: Po-Hsien Huang, Tzu-Chang Wang
  • Publication number: 20230263965
    Abstract: A portable nebulizer provided by the invention is particularly suitable for using with a liquid contained in a capsule or in a container made of a disposable material that can be easily damaged, the portable nebulizer comprises a driving unit for driving an atomizing unit, and a containing unit for containing the container, the containing unit has a breaking part for breaking the container to facilitate outflow of the liquid, after the liquid flows into an inner space of a main body of the containing unit because the container is damaged by the breaking part, the liquid can be atomized by the atomizing unit to produce a mist capable of escaping to the outside of the main body for a user to use the liquid mist conveniently.
    Type: Application
    Filed: February 23, 2022
    Publication date: August 24, 2023
    Inventors: Huang-Te LI, Yi-Tzu CHANG, Yung-Ying CHEN, I-Hui WU
  • Publication number: 20230202436
    Abstract: A brake system includes a first and a second hydraulic brake assembly, a first and a second switch and a first electronic brake assembly. The first hydraulic brake assembly includes a first brake caliper and a first brake lever connected to each other. The second hydraulic brake assembly includes a second brake caliper and a second brake lever connected to each other. The first switch is activated by the first brake lever when the first brake lever is operated. The second switch is activated by the second brake lever when the second brake lever is operated. The first electronic brake assembly is connected to the second hydraulic brake assembly. The first electronic brake assembly controls an oil pressure applied to the second brake caliper according to whether the first switch and the second switch are activated.
    Type: Application
    Filed: December 9, 2022
    Publication date: June 29, 2023
    Applicant: TEKTRO TECHNOLOGY CORPORATION
    Inventors: Tzu-Chang WANG, Po-Hsien HUANG
  • Publication number: 20230070205
    Abstract: A network managing device for handling a data flow comprises a topology generating module, for generating a topology of at least one device of a network, and for determining at least one intelligent electric device (IED) of the at least one device according to the topology; a transmitting module, coupled to the topology generating module, for transmitting a request to a reception-transmission device, wherein the request is for requesting a substation information associated with the at least one IED; a receiving module, coupled to the transmitting module, for receiving the substation information from the reception-transmission device; a shortest path generating module, coupled to the receiving module, for generating a first shortest path of the at least one IED according to the substation information; and a data flow processing module, coupled to the shortest path generating module, for generating a data flow according to the first shortest path.
    Type: Application
    Filed: October 15, 2021
    Publication date: March 9, 2023
    Applicant: Moxa Inc.
    Inventors: Zhi-Jie Yang, Hsi-Chin Wu, Yu-Tzu Chang, Chuan Huang
  • Patent number: 11559164
    Abstract: Disclosures of the present invention describe a coaxial microwave rotary applicator for material processing, mainly comprising: a waveguide unit, a microwave generator connected to one end of the waveguide unit, a bearing unit, a chamber, a rotary shaft, a driver unit, a sampling unit. The bearing unit is connected to the waveguide unit through a non-rotary ring, and the chamber is connected to a rotary ring of the bearing unit, and the microwave generator is configured for supplying a microwave to the chamber. By such arrangements, it is able to uniformly heat a specific material disposed in the chamber by driving the chamber to rotate. It is worth noting that, a user is allowed to clearly observe the processing progress via the sampling unit during the heating process of the specific material.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: January 24, 2023
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Hsein-Wen Chao, Tsun-Hsu Chang, Huan-Jun Guo, Cheng-Hsuan Chan, Po-Yen Chiu, Yu-Tzu Chang
  • Publication number: 20220367409
    Abstract: A method of forming a redistribution structure includes providing a dielectric layer. The dielectric layer is patterned to form a plurality of via openings. A seed layer is formed on the dielectric layer and filling in the plurality of via openings. A patterned conductive layer is formed a on the seed layer, wherein a portion of the seed layer is exposed by the patterned conductive layer. The portion of the seed layer is removed by using an etching solution, thereby forming a plurality of conductive lines and a plurality of vias. During the removing the portion of the seed layer, an etch rate of the patterned conductive layer is less than an etch rate of the seed layer.
    Type: Application
    Filed: July 27, 2022
    Publication date: November 17, 2022
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hung-Jui Kuo, Hui-Jung Tsai, Chia-Wei Wang, Yu-Tzu Chang
  • Publication number: 20220320039
    Abstract: A method of forming a semiconductor package includes the following operations. A first integrated circuit structure is provided, and the first integrated circuit structure includes a first substrate and a silicon layer over the first substrate. A plasma treatment is performed to transform a top portion of the silicon layer to a first bonding layer on the remaining silicon layer of the first integrated circuit structure. A second integrated circuit structure is provided, and the second integrated circuit structure includes a second substrate and a second bonding layer over the second substrate. The second integrated circuit structure is bonded to the first integrated circuit structure through the second bonding layer of the second integrated circuit structure and the first bonding layer of the first integrated circuit structure.
    Type: Application
    Filed: March 31, 2021
    Publication date: October 6, 2022
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hung-Jui Kuo, Hui-Jung Tsai, Chia-Wei Wang, Yu-Tzu Chang
  • Patent number: 11450641
    Abstract: Provided is a method for forming a conductive feature including forming a seed layer over a substrate; forming a patterned mask layer on the seed layer, wherein the patterned mask layer has an opening exposing the seed layer; forming a conductive material in the opening; removing the patterned mask layer to expose a portion of the seed layer; and removing the portion of the seed layer by using an etching solution including a protective agent, thereby forming a conductive feature, wherein the protective agent has multiple active sites to adsorb on the conductive material.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: September 20, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hung-Jui Kuo, Hui-Jung Tsai, Chia-Wei Wang, Yu-Tzu Chang
  • Patent number: 11139384
    Abstract: A method for fabricating semiconductor device is disclosed. The method includes the steps of: providing a substrate having a first region, a second region, a third region, and a fourth region; forming a tuning layer on the second region; forming a first work function metal layer on the first region and the tuning layer of the second region; forming a second work function metal layer on the first region, the second region, and the fourth region; and forming a top barrier metal (TBM) layer on the first region, the second region, the third region, and the fourth region.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: October 5, 2021
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Kuo-Chih Lai, Yun-Tzu Chang, Wei-Ming Hsiao, Nien-Ting Ho, Shih-Min Chou, Yang-Ju Lu, Ching-Yun Chang, Yen-Chen Chen, Kuan-Chun Lin, Chi-Mao Hsu
  • Publication number: 20210300309
    Abstract: A control method for bicycle anti-lock brake device includes determining whether a wheel deceleration of the bicycle is larger than or equal to a deceleration threshold. When the wheel deceleration of the bicycle is determined to be smaller than the deceleration threshold, the anti-lock brake device of the bicycle is inactivated. When the wheel deceleration of the bicycle is determined to be larger than or equal to the deceleration threshold, determining whether a wheel speed of the bicycle is larger than or equal to a wheel speed threshold. When the wheel speed of the bicycle is determined to be larger than or equal to the wheel speed threshold, the anti-lock brake device of the bicycle is activated. when the wheel speed of the bicycle is determined to be smaller than the wheel speed threshold, the anti-lock brake device of the bicycle is inactivated.
    Type: Application
    Filed: January 26, 2021
    Publication date: September 30, 2021
    Inventors: Po-Hsien HUANG, Tzu-Chang WANG
  • Patent number: 11121106
    Abstract: In an embodiment, a device includes: a semiconductor substrate; a contact pad on the semiconductor substrate; a passivation layer on the contact pad and the semiconductor substrate; a die connector extending through the passivation layer, the die connector being physically and electrically coupled to the contact pad, the die connector including a first conductive material, the first conductive material being a Lewis acid having a first acid hardness/softness index; a dielectric layer on the die connector and the passivation layer; and a protective layer disposed between the dielectric layer and the die connector, the protective layer surrounding the die connector, the protective layer including a coordination complex of the first conductive material and an azole, the azole being a Lewis base having a first ligand hardness/softness index, where a product of the first acid hardness/softness index and the first ligand hardness/softness index is positive.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: September 14, 2021
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hung-Jui Kuo, Chia-Wei Wang, Hui-Jung Tsai, Yu-Tzu Chang
  • Publication number: 20210276654
    Abstract: A measuring device includes an acceleration sensing module, a signal acquisition module, and a pedaling frequency. The acceleration sensing module is configured to produce an acceleration signal according to an acceleration of a bicycle. The acceleration signal is associated with an acceleration waveform information. The signal acquisition module is electrically connected to the acceleration sensing module. The signal acquisition module acquires the acceleration waveform information from the acceleration signal according to a predetermined parameter. The pedaling frequency calculation module is electrically connected to the signal acquisition module. The pedaling frequency calculation module calculates a pedaling frequency data according to the acceleration waveform information. In addition, a measuring method is also provided.
    Type: Application
    Filed: January 25, 2021
    Publication date: September 9, 2021
    Inventors: Tzu-Chang Wang, Po-Hsien Huang
  • Publication number: 20210134749
    Abstract: In an embodiment, a device includes: a semiconductor substrate; a contact pad on the semiconductor substrate; a passivation layer on the contact pad and the semiconductor substrate; a die connector extending through the passivation layer, the die connector being physically and electrically coupled to the contact pad, the die connector including a first conductive material, the first conductive material being a Lewis acid having a first acid hardness/softness index; a dielectric layer on the die connector and the passivation layer; and a protective layer disposed between the dielectric layer and the die connector, the protective layer surrounding the die connector, the protective layer including a coordination complex of the first conductive material and an azole, the azole being a Lewis base having a first ligand hardness/softness index, where a product of the first acid hardness/softness index and the first ligand hardness/softness index is positive.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 6, 2021
    Inventors: Hung-Jui Kuo, Chia-Wei Wang, Hui-Jung Tsai, Yu-Tzu Chang
  • Publication number: 20210098417
    Abstract: Provided is a method for forming a conductive feature including forming a seed layer over a substrate; forming a patterned mask layer on the seed layer, wherein the patterned mask layer has an opening exposing the seed layer; forming a conductive material in the opening; removing the patterned mask layer to expose a portion of the seed layer; and removing the portion of the seed layer by using an etching solution including a protective agent, thereby forming a conductive feature, wherein the protective agent has multiple active sites to adsorb on the conductive material.
    Type: Application
    Filed: August 27, 2020
    Publication date: April 1, 2021
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hung-Jui Kuo, Hui-Jung Tsai, Chia-Wei Wang, Yu-Tzu Chang
  • Patent number: 10850719
    Abstract: The disclosure provides an anti-lock brake device including an oil pressure tank, a first piston and a second piston. The oil pressure tank has an internal space, an oil inlet and an oil outlet that are connected to one another. The first piston is slidably located in the internal space, and has a first oil channel penetrating a contact portion of the first piston and connected to the oil inlet. The second piston is slidably located in the internal space and includes a push portion, and an outer diameter of the push portion is smaller than that of the contact portion. When the second piston is in a closed position, a chamber having a first unoccupied volume is formed in the internal space. When the second piston is moved from the closed position to a depressurized position, the first volume of the chamber is increased to a second volume.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: December 1, 2020
    Assignee: TEKTRO TECHNOLOGY CORPORATION
    Inventors: Po-Hsien Huang, Tzu-Chang Wang
  • Publication number: 20200324752
    Abstract: The disclosure provides an anti-lock brake device including an oil pressure tank, a valve, and a movable component. The oil pressure tank has an accommodation space, an oil inlet channel, and an oil outlet channel connected to the accommodation space. The valve is slidably located in the oil inlet channel and for sealing or opening an oil inlet of the oil inlet channel. The movable component is located in the accommodation space and has a connecting channel corresponding to the oil inlet and an oil outlet of the oil outlet channel. When the movable component is slid to a depressurized position, the movable component is moved away from the valve for sealing the oil inlet, a first volume is produced between the connecting channel and the oil inlet, and a second volume, smaller than the first volume, is removed from between the connecting channel and the oil outlet.
    Type: Application
    Filed: January 14, 2020
    Publication date: October 15, 2020
    Inventors: Po-Hsien HUANG, Tzu-Chang WANG
  • Publication number: 20200281395
    Abstract: Disclosures of the present invention describe a coaxial microwave rotary applicator for material processing, mainly comprising: a waveguide unit, a microwave generator connected to one end of the waveguide unit, a bearing unit, a chamber, a rotary shaft, a driver unit, a sampling unit. The bearing unit is connected to the waveguide unit through a non-rotary ring, and the chamber is connected to a rotary ring of the bearing unit, and the microwave generator is configured for supplying a microwave to the chamber. By such arrangements, it is able to uniformly heat a specific material disposed in the chamber by driving the chamber to rotate. It is worth noting that, a user is allowed to clearly observe the processing progress via the sampling unit during the heating process of the specific material.
    Type: Application
    Filed: November 7, 2019
    Publication date: September 10, 2020
    Inventors: HSEIN-WEN CHAO, TSUN-HSU CHANG, HUAN-JUN GUO, CHENG-HSUAN CHAN, PO-YEN CHIU, YU-TZU CHANG
  • Publication number: 20200006514
    Abstract: A method for fabricating semiconductor device is disclosed. The method includes the steps of: providing a substrate having a first region, a second region, a third region, and a fourth region; forming a tuning layer on the second region; forming a first work function metal layer on the first region and the tuning layer of the second region; forming a second work function metal layer on the first region, the second region, and the fourth region; and forming a top barrier metal (TBM) layer on the first region, the second region, the third region, and the fourth region.
    Type: Application
    Filed: September 4, 2019
    Publication date: January 2, 2020
    Inventors: Kuo-Chih Lai, Yun-Tzu Chang, Wei-Ming Hsiao, Nien-Ting Ho, Shih-Min Chou, Yang-Ju Lu, Ching-Yun Chang, Yen-Chen Chen, Kuan-Chun Lin, Chi-Mao Hsu
  • Patent number: D879178
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: March 24, 2020
    Assignee: VIVOTEK INC.
    Inventors: Wei-Kai Tang, Fang-Tzu Chang, Shih-Hsuan Hung
  • Patent number: D1014325
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: February 13, 2024
    Inventor: Hsiu-Tzu Chang