Patents by Inventor Wei-Chung Chang

Wei-Chung 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).

  • Publication number: 20240162618
    Abstract: An antenna structure includes a metal mechanism element, a ground element, a feeding radiation element, a first radiation element, a second radiation element, a parasitic radiation element, a tuning circuit, and a nonconductive support element. The metal mechanism element has a slot. The metal mechanism element includes a first grounding portion and a second grounding portion. The slot is positioned between the first grounding portion and the second grounding portion. The feeding radiation element has a feeding point. The first radiation element is coupled to the feeding radiation element. The second radiation element is coupled to the feeding radiation element. The parasitic radiation element is coupled to the ground element. The parasitic radiation element is adjacent to the first radiation element and the second radiation element. The tuning circuit is coupled between the first grounding portion and the second grounding portion of the metal mechanism element.
    Type: Application
    Filed: October 18, 2023
    Publication date: May 16, 2024
    Inventors: Wei-Chung CHANG, Shang-Ching TSENG
  • Patent number: 11982798
    Abstract: A projection lens includes a first lens group, a second lens group and an aperture stop. The first lens group is disposed between a reduced side and a magnified side. The second lens is disposed between the first lens group and the magnified side. The second lens group has a light incident surface, a reflective surface and a light emitting surface, the light incident surface faces the first lens group, the light emitting surface faces a projection surface, the light incident surface, the light emitting surface and the first lens group are disposed at a single side of the reflective surface, and at least one of the light incident surface, the reflective surface and the light emitting surface is a freeform surface. The aperture stop is disposed between the first lens group and the second lens group. Moreover, a projection apparatus including the projection lens is also provided.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: May 14, 2024
    Assignee: Coretronic Corporation
    Inventors: Hsin-Hsiang Lo, Wei-Ting Wu, Fu-Ming Chuang, Chuan-Chung Chang, Ching-Chuan Wei
  • Publication number: 20240145554
    Abstract: Various embodiments of the present disclosure are directed towards a method for forming a semiconductor structure, the method includes forming a buffer layer over a substrate. An active layer is formed on the buffer layer. A top electrode is formed on the active layer. An etch process is performed on the buffer layer and the substrate to define a plurality of pillar structures. The plurality of pillar structures include a first pillar structure laterally offset from a second pillar structure. At least portions of the first and second pillar structures are spaced laterally between sidewalls of the top electrode.
    Type: Application
    Filed: January 11, 2024
    Publication date: May 2, 2024
    Inventors: Yao-Chung Chang, Chun Lin Tsai, Ru-Yi Su, Wei Wang, Wei-Chen Yang
  • Patent number: 11973260
    Abstract: A light-transmitting antenna includes a substrate, a first and a second conductive pattern. The first and the second conductive pattern is disposed on a first and a second surface of the substrate respectively. The first conductive pattern includes a first feeder unit, a first and a second radiation unit, a first and a second coupling unit and a first parasitic unit. The first feeder unit is connected to the second radiation unit. The first and the second radiation unit are located between the first and the second coupling unit. One side and the other side of the first parasitic unit is connected to the second coupling unit and adjacent to the first coupling unit respectively. The second conductive pattern includes a second feeder unit, a third coupling unit, a second parasitic unit, and a fourth coupling unit.
    Type: Grant
    Filed: November 9, 2022
    Date of Patent: April 30, 2024
    Assignee: Industrial Technology Research Institute
    Inventors: Ruo-Lan Chang, Mei-Ju Lee, Cheng-Hua Tsai, Meng-Hsuan Chen, Wei-Chung Chen
  • Patent number: 11966628
    Abstract: A memory device, includes a memory array for storing a plurality of vector data each of which has an MSB vector and a LSB vector. The memory array includes a plurality of memory units each of which has a first bit and a second bit. The first bit is used to store the MSB vector of each vector data, the second bit is used to store the LSB vector of each vector data. A bit line corresponding to each vector data executes one time of bit-line-setup, and reads the MSB vector and the LSB vector of each vector data according to the bit line. The threshold voltage distribution of each memory unit is divided into N states, where N is a positive integer and N is less than 2 to the power of 2, and the effective bit number stored by each memory unit is less than 2.
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: April 23, 2024
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Wei-Chen Wang, Han-Wen Hu, Yung-Chun Li, Huai-Mu Wang, Chien-Chung Ho, Yuan-Hao Chang, Tei-Wei Kuo
  • Publication number: 20240128122
    Abstract: Semiconductor package includes substrate, first barrier layer, second barrier layer, routing via, first routing pattern, second routing pattern, semiconductor die. Substrate has through hole with tapered profile, wider at frontside surface than at backside surface of substrate. First barrier layer extends on backside surface. Second barrier layer extends along sidewalls of through hole and on frontside surface. Routing via fills through hole and is separated from sidewalls of through hole by at least second barrier layer. First routing pattern extends over first barrier layer on backside surface and over routing via. First routing pattern is electrically connected to end of routing via and has protrusion protruding towards end of routing via in correspondence of through hole. Second routing pattern extends over second barrier layer on frontside surface. Second routing pattern directly contacts another end of routing via. Semiconductor die is electrically connected to routing via by first routing pattern.
    Type: Application
    Filed: December 25, 2023
    Publication date: April 18, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wei-Chung Chang, Ming-Che Ho, Hung-Jui Kuo
  • Publication number: 20240120656
    Abstract: A light-transmitting antenna includes a substrate, a first conductive pattern, and a second conductive pattern. The first conductive pattern has a first feeder unit, a first radiation unit, a second radiation unit, and a first connection unit. The first feeder unit and the first connection unit are connected to two sides of the first radiation unit. The first connection unit connects the first radiation unit and the second radiation unit. The second conductive pattern has a second feeder unit, a third radiation unit, a fourth radiation unit, and a second connection unit. The second feeder unit and the second connection unit are connected to two sides of the third radiation unit. The second connection unit connects the third radiation unit and the fourth radiation unit. An orthogonal projection of the second feeder unit on a first surface of the substrate at least partially overlaps the first feeder unit.
    Type: Application
    Filed: December 22, 2022
    Publication date: April 11, 2024
    Applicant: Industrial Technology Research Institute
    Inventors: Meng-Hsuan Chen, Cheng-Hua Tsai, Mei-Ju Lee, Ruo-Lan Chang, Wei-Chung Chen
  • Publication number: 20240096849
    Abstract: A semiconductor structure includes a semiconductor die, a redistribution circuit structure, and a terminal. The redistribution circuit structure is disposed on and electrically coupled to the semiconductor die. The terminal is disposed on and electrically coupled to the redistribution circuit structure, where the redistribution circuit structure is disposed between the semiconductor die and the terminal, and the terminal includes an under-bump metallization (UBM) and a capping layer. The UBM is disposed on and electrically coupled to the redistribution circuit structure, where the UBM includes a recess. The capping layer is disposed on and electrically coupled to the UBM, where the UBM is between the capping layer and the redistribution circuit structure, and the capping layer fills the recess of the UBM.
    Type: Application
    Filed: January 9, 2023
    Publication date: March 21, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wei-Chung Chang, Ming-Che Ho, Hung-Jui Kuo
  • Patent number: 11901230
    Abstract: Semiconductor package includes substrate, first barrier layer, second barrier layer, routing via, first routing pattern, second routing pattern, semiconductor die. Substrate has through hole with tapered profile, wider at frontside surface than at backside surface of substrate. First barrier layer extends on backside surface. Second barrier layer extends along sidewalls of through hole and on frontside surface. Routing via fills through hole and is separated from sidewalls of through hole by at least second barrier layer. First routing pattern extends over first barrier layer on backside surface and over routing via. First routing pattern is electrically connected to end of routing via and has protrusion protruding towards end of routing via in correspondence of through hole. Second routing pattern extends over second barrier layer on frontside surface. Second routing pattern directly contacts another end of routing via. Semiconductor die is electrically connected to routing via by first routing pattern.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: February 13, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wei-Chung Chang, Ming-Che Ho, Hung-Jui Kuo
  • Publication number: 20240047308
    Abstract: A semiconductor package includes a substrate, a composite seed-barrier layer, a routing via, and a semiconductor die. The substrate has a through hole formed therethrough. The composite seed-barrier layer extends on sidewalls of the through hole and includes a first barrier layer, a seed layer, and a second barrier layer sequentially stacked on the sidewalls of the through hole. The routing via fills the through hole and is separated from the substrate by the composite seed-barrier layer. The semiconductor die is electrically connected to the routing via. Along the sidewalls of the through holes, at a level height corresponding to half of a total thickness of the substrate, the seed layer is present as inclusions of seed material surrounded by barrier material of the first barrier layer and the second barrier layer.
    Type: Application
    Filed: October 5, 2023
    Publication date: February 8, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wei-Chung Chang, Ming-Che Ho, Hung-Jui Kuo
  • Patent number: 11823981
    Abstract: A semiconductor package includes a substrate, a composite seed-barrier layer, a routing via, and a semiconductor die. The substrate has a through hole formed therethrough. The composite seed-barrier layer extends on sidewalls of the through hole and includes a first barrier layer, a seed layer, and a second barrier layer sequentially stacked on the sidewalls of the through hole. The routing via fills the through hole and is separated from the substrate by the composite seed-barrier layer. The semiconductor die is electrically connected to the routing via. Along the sidewalls of the through holes, at a level height corresponding to half of a total thickness of the substrate, the seed layer is present as inclusions of seed material surrounded by barrier material of the first barrier layer and the second barrier layer.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: November 21, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wei-Chung Chang, Ming-Che Ho, Hung-Jui Kuo
  • Publication number: 20230226230
    Abstract: A compound for measurement of thiopurine pathway directed systems imaging and therapy including a chelator and a thiopurine ligand is provided. A method of synthesizing the compound is also provided, and the compound may be further prepared in pharmaceutical formulations or kits for therapy or molecular imaging.
    Type: Application
    Filed: February 26, 2021
    Publication date: July 20, 2023
    Applicant: SEECURE TAIWAN CO., LTD.
    Inventors: Wei-Chung CHANG, David J. YANG, Min-Ching CHUNG, Chi-Shiang KE, Tsung-Tien KUO
  • Publication number: 20230069737
    Abstract: A semiconductor package includes a substrate, a composite seed-barrier layer, a routing via, and a semiconductor die. The substrate has a through hole formed therethrough. The composite seed-barrier layer extends on sidewalls of the through hole and includes a first barrier layer, a seed layer, and a second barrier layer sequentially stacked on the sidewalls of the through hole. The routing via fills the through hole and is separated from the substrate by the composite seed-barrier layer. The semiconductor die is electrically connected to the routing via. Along the sidewalls of the through holes, at a level height corresponding to half of a total thickness of the substrate, the seed layer is present as inclusions of seed material surrounded by barrier material of the first barrier layer and the second barrier layer.
    Type: Application
    Filed: August 27, 2021
    Publication date: March 2, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wei-Chung Chang, Ming-Che Ho, Hung-Jui Kuo
  • Publication number: 20230065788
    Abstract: Semiconductor package includes substrate, first barrier layer, second barrier layer, routing via, first routing pattern, second routing pattern, semiconductor die. Substrate has through hole with tapered profile, wider at frontside surface than at backside surface of substrate. First barrier layer extends on backside surface. Second barrier layer extends along sidewalls of through hole and on frontside surface. Routing via fills through hole and is separated from sidewalls of through hole by at least second barrier layer. First routing pattern extends over first barrier layer on backside surface and over routing via. First routing pattern is electrically connected to end of routing via and has protrusion protruding towards end of routing via in correspondence of through hole. Second routing pattern extends over second barrier layer on frontside surface. Second routing pattern directly contacts another end of routing via. Semiconductor die is electrically connected to routing via by first routing pattern.
    Type: Application
    Filed: August 30, 2021
    Publication date: March 2, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wei-Chung Chang, Ming-Che Ho, Hung-Jui Kuo
  • Patent number: 11146056
    Abstract: An interface control circuit complying with an interface specification includes: an interface signal transceiver circuit and a protection circuit. The interface signal transceiver circuit is coupled to a first interface connection pin and a second interface connection pin of a first interface connector circuit. The interface signal transceiver circuit is for transmitting and/or receiving an interface signal according to the interface specification. When the interface signal transceiver circuit operates under a first state, the protection circuit determines whether a foreign object exists between the first interface connection pin and the second interface connection pin according to a voltage change or a current change at the second interface connection pin. Under the first state, the interface signal transceiver circuit generates a pull-up signal and a pull-down signal which are toggled with each other at the first interface connection pin.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: October 12, 2021
    Assignee: RICHTEK TECHNOLOGY CORPORATION
    Inventors: Yu-Jen Cheng, Chih-Wei Mu, Sheng-Tsung Chen, Chieh-Min Lo, Wei-Chung Chang
  • Patent number: 11090395
    Abstract: A composition for cross talk between estrogen receptors and cannabinoid receptors including a chelator and a receptor ligand is provided. A method of synthesizing the composition is also provided, and the composition may be further prepared in pharmaceutical formulations or kits for therapy or molecular imaging.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: August 17, 2021
    Assignee: SeeCure Taiwan Co., Ltd.
    Inventors: Tsung-Tien Kuo, David J. Yang, Wei-Chung Chang, Min-Ching Chung, Chi-Shiang Ke
  • Publication number: 20210196655
    Abstract: A composition for cross talk between estrogen receptors and cannabinoid receptors including a chelator and a receptor ligand is provided. A method of synthesizing the composition is also provided, and the composition may be further prepared in pharmaceutical formulations or kits for therapy or molecular imaging.
    Type: Application
    Filed: March 4, 2021
    Publication date: July 1, 2021
    Applicant: SeeCure Taiwan Co., Ltd.
    Inventors: Tsung-Tien Kuo, David J. Yang, Wei-Chung Chang, Min-Ching Chung, Chi-Shiang Ke
  • Publication number: 20210119438
    Abstract: An interface control circuit complying with an interface specification includes: an interface signal transceiver circuit and a protection circuit. The interface signal transceiver circuit is coupled to a first interface connection pin and a second interface connection pin of a first interface connector circuit. The interface signal transceiver circuit is for transmitting and/or receiving an interface signal according to the interface specification. When the interface signal transceiver circuit operates under a first state, the protection circuit determines whether a foreign object exists between the first interface connection pin and the second interface connection pin according to a voltage change or a current change at the second interface connection pin. Under the first state, the interface signal transceiver circuit generates a pull-up signal and a pull-down signal which are toggled with each other at the first interface connection pin.
    Type: Application
    Filed: May 13, 2020
    Publication date: April 22, 2021
    Inventors: Yu-Jen Cheng, Chih-Wei Mu, Sheng-Tsung Chen, Chieh-Min Lo, Wei-Chung Chang
  • Patent number: 10616652
    Abstract: The disclosure proposes a playback method including displaying a first playback session which comprises an on-demand streaming session in a foreground of a display of the electronic device; switching, at a first playback time (t1), the first playback session from being displayed in the foreground to a background in which the on-demand streaming session ceases streaming; recording the t1 and a first clock time (T1) in response to switching the first playback session from being displayed in the foreground to the background; switching the first playback session back from the background to being displayed in the foreground; recording a second clock time (T2) in response to switching the first playback session back from the background to being displayed in the foreground; and changing the on-demand streaming session as being displayed in the foreground to a second playback time (t2) which is determined according to t2=t1+(T2?T1).
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: April 7, 2020
    Assignee: Novatek Microelectronics Corp.
    Inventors: Wei-Chung Chang, Hsiang-An Wang
  • Publication number: 20200085978
    Abstract: A composition for cross talk between estrogen receptors and cannabinoid receptors including a chelator and a receptor ligand is provided. A method of synthesizing the composition is also provided, and the composition may be further prepared in pharmaceutical formulations or kits for therapy or molecular imaging.
    Type: Application
    Filed: September 14, 2018
    Publication date: March 19, 2020
    Applicant: SeeCure Taiwan Co., Ltd.
    Inventors: Tsung-Tien Kuo, David J. Yang, Wei-Chung Chang, Min-Ching Chung, Chi-Shiang Ke