Patents by Inventor Yao-Wen Chang

Yao-Wen 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: 20240151900
    Abstract: A method for manufacturing a semiconductor device includes: forming a first waveguide structure and a second waveguide structure on a substrate in which the first waveguide structure and the second waveguide structure is spaced apart from each other by a recess; conformally forming an un-doped dielectric layer to cover the first and second waveguide structures and to form a gap between two corresponding portions of the un-doped dielectric layer laterally covering the first waveguide structure and the second waveguide structure, respectively; and forming a doped filling layer to fill the gap.
    Type: Application
    Filed: February 22, 2023
    Publication date: May 9, 2024
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Wei-Li LO, Huan-Chieh CHEN, Yao-Wen CHANG, Chih-Ming CHEN
  • Publication number: 20240142629
    Abstract: A shielding structure may be applied on an electronic device. The electronic device includes a camera and a TOF sensor having a transmitter and a receiver. The shielding structure includes a base, a shutter movably connected with the base, and a barrier movably connected with the base. At least a part of the barrier is disposed between the transmitter and the receiver, and the barrier may block a signal transmitted by the transmitter. An elastic member is fixed on the base. When the shutter is moved to abut the barrier, the barrier is pushed to press the elastic member, wherein the elastic member is deformed allowing at least a portion of the shutter disposing and abutting on the barrier, and the camera and the TOF sensor may be covered by the shutter at the same time.
    Type: Application
    Filed: November 1, 2023
    Publication date: May 2, 2024
    Inventor: YAO-WEN CHANG
  • Patent number: 11973050
    Abstract: Various embodiments of the present disclosure are directed towards an integrated chip. The integrated chip includes an interconnect structure overlying a semiconductor substrate and comprising a conductive wire. A passivation structure overlies the interconnect structure. An upper conductive structure overlies the passivation structure and comprises a first conductive layer, a dielectric layer, and a second conductive layer. The first conductive layer is disposed between the dielectric layer and the passivation structure. The second conductive layer extends along a top surface of the dielectric layer and penetrates through the first conductive layer and the passivation structure to the conductive wire.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: April 30, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tzu-Yu Lin, Yao-Wen Chang, Chia-Wen Zhong, Yen-Liang Lin
  • Publication number: 20240077479
    Abstract: A detection system and method for the migrating cell is provided. The system is configured to detect a migrating cell combined with an immunomagnetic bead. The system includes a platform, a microchannel, a magnetic field source, a coherent light source and an optical sensing module. The microchannel is configured to allow the migrating cell to flow in it along a flow direction. The magnetic field source is configured to provide magnetic force to the migrating cell combined with the immunomagnetic bead. The magnetic force includes at least one magnetic force component and the magnetic force component is opposite to the flow direction of the microchannel. The coherent light source is configured to provide the microchannel with the coherent light. The optical sensing module is configured to receive the interference light caused by the coherent light being reflected by the sample inside the microchannel.
    Type: Application
    Filed: August 10, 2023
    Publication date: March 7, 2024
    Applicant: DeepBrain Tech. Inc
    Inventors: Han-Lin Wang, Chia-Wei Chen, Yao-Wen Liang, Ting-Chun Lin, Yun-Ting Kuo, You-Yin Chen, Yu-Chun Lo, Ssu-Ju Li, Ching-Wen Chang, Yi-Chen Lin
  • Publication number: 20240071813
    Abstract: A dielectric structure is formed over a layer than contains a conductive component. An opening is formed in the dielectric structure. The opening exposes an upper surface of the conductive component. A first deposition process is performed that deposits a first conductive layer over the dielectric structure and partially in the opening. A treatment process is performed on a first portion of the first conductive layer formed over the dielectric structure. The treatment process introduces a non-metal material to the first portion of the first conductive layer. After the treatment process has been performed, a second deposition process is performed that at least partially fills the opening with a second conductive layer without trapping a gap therein.
    Type: Application
    Filed: August 25, 2022
    Publication date: February 29, 2024
    Inventors: Tzu-Yu Lin, Yao-Wen Chang
  • Publication number: 20240038265
    Abstract: The present disclosure relates to an integrated chip. The integrated chip includes a lower electrode disposed within a dielectric structure over a substrate. A ferroelectric data storage structure is disposed over the lower electrode and an upper electrode is disposed over the ferroelectric data storage structure. One or more stressed sidewall spacers are arranged on opposing sides of the upper electrode. The ferroelectric data storage structure has an orthorhombic phase concentration that varies from directly below the one or more stressed sidewall spacers to laterally outside of the one or more stressed sidewall spacers.
    Type: Application
    Filed: January 5, 2023
    Publication date: February 1, 2024
    Inventors: Tzu-Yu Lin, Yao-Wen Chang
  • Publication number: 20240021561
    Abstract: Various embodiments of the present disclosure are directed towards an integrated chip. The integrated chip includes an interconnect structure overlying a semiconductor substrate and comprising a conductive wire. A passivation structure overlies the interconnect structure. An upper conductive structure overlies the passivation structure and comprises a first conductive layer, a dielectric layer, and a second conductive layer. The first conductive layer is disposed between the dielectric layer and the passivation structure. The second conductive layer extends along a top surface of the dielectric layer and penetrates through the first conductive layer and the passivation structure to the conductive wire.
    Type: Application
    Filed: August 9, 2023
    Publication date: January 18, 2024
    Inventors: Tzu-Yu Lin, Yao-Wen Chang, Chia-Wen Zhong, Yen-Liang Lin
  • Publication number: 20230420493
    Abstract: A metal-insulator-metal (MIM) capacitor and methods of forming the same are described. In some embodiments, the method includes forming an opening having a first depth in one or more dielectric layers, depositing a layer in the opening and on the one or more dielectric layers, performing an anisotropic etch process to remove portions of the layer formed on horizontal surfaces, extending the opening to a second depth in the one or more dielectric layers, removing the layer, extending the opening to a third depth in the one or more dielectric layers, and forming a MIM capacitor in the opening.
    Type: Application
    Filed: June 27, 2022
    Publication date: December 28, 2023
    Inventors: Hsing-Lien LIN, Hai-Dang TRINH, Yao-Wen CHANG, Jui-Lin CHU, Cheng-Te LEE
  • Publication number: 20230413682
    Abstract: A semiconductor structure includes a bottom electrode, a magnetic tunneling junction stack over the bottom electrode, a top electrode over the magnetic tunneling junction stack, a first dielectric layer under the bottom electrode, a second dielectric layer under the first dielectric layer. The first dielectric layer has a first chemical bond energy and the second dielectric layer has a second chemical bond energy less than the first chemical bond energy.
    Type: Application
    Filed: June 10, 2022
    Publication date: December 21, 2023
    Inventors: Chia-Hua LIN, Yao-Wen CHANG
  • Publication number: 20230403956
    Abstract: Various embodiments of the present disclosure provide a memory device and methods of forming the same. In one embodiment, a memory device is provided. The memory device includes a substrate, a bottom electrode disposed over the substrate, a top electrode disposed over the bottom electrode, and a phase change layer disposed between the top electrode and the bottom electrode. The phase change layer is a laminated structure comprising a first layer of phase change material and a second layer of phase change material alternatingly stacked, and the first layer of phase change material is chemically different from the second layer of phase change material, wherein the first layer of phase change material has a first thickness that is less than a second thickness of the second layer of phase change material.
    Type: Application
    Filed: June 11, 2022
    Publication date: December 14, 2023
    Inventors: Chin I WANG, Huan-Chieh CHEN, Chia-Wen ZHONG, Yao-Wen CHANG
  • Publication number: 20230389445
    Abstract: Various embodiments of the present disclosure are directed towards a method for forming an integrated chip. The method includes forming a memory cell stack over a substrate. The memory cell stack includes a top electrode. A sidewall spacer structure is formed around the memory cell stack. The sidewall spacer structure includes a first sidewall spacer layer, a second sidewall spacer layer, and a protective sidewall spacer layer sandwiched between the first and second sidewall spacer layers. A dielectric structure is formed over the sidewall spacer structure. A first etch process is performed on the dielectric structure and the second sidewall spacer layer to define an opening above the top electrode. The second sidewall spacer layer and the dielectric structure are etched at a higher rate than the protective sidewall spacer layer during the first etch process. A top electrode via is formed within the opening.
    Type: Application
    Filed: August 3, 2023
    Publication date: November 30, 2023
    Inventors: Yao-Wen Chang, Chung-Chiang Min, Harry-Hak-Lay Chuang, Hung Cho Wang, Tsung-Hsueh Yang, Yuan-Tai Tseng, Sheng-Huang Huang, Chia-Hua Lin
  • Patent number: 11823751
    Abstract: A memory device and an operation method thereof are provided. The operation method includes: when a read operation or a write-verify operation is completed, during a word line voltage lowering phase, synchronously applying a plurality of different gradually lowering signal line reference voltages to a plurality of ground select lines and a plurality of string select lines, wherein values of the different gradually lowering signal line reference voltages are corresponding to a plurality of signal line positions of the ground select lines and the string select lines.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: November 21, 2023
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Guan-Wei Wu, Yao-Wen Chang, I-Chen Yang
  • Publication number: 20230368849
    Abstract: A memory device and an operation method thereof are provided. The operation method includes: in a programming operation, programming a plurality of threshold voltages of a plurality of switches on a plurality of string select lines and a plurality of ground select lines as a first reference threshold voltage, and programming a plurality of threshold voltages of a plurality of dummy memory cells on a plurality of dummy word lines as being gradually increased along a first direction or a second direction, and the threshold voltages of the dummy memory cells being higher than the first reference threshold voltage; wherein the first direction being from the string select lines to a plurality of word lines and the second direction being from the ground select lines to the word lines.
    Type: Application
    Filed: May 13, 2022
    Publication date: November 16, 2023
    Inventors: Tao-Yuan LIN, I-Chen YANG, Yao-Wen CHANG
  • Patent number: 11818962
    Abstract: Various embodiments of the present disclosure are directed towards a method for forming an integrated chip. The method includes forming a memory cell stack over a substrate. The memory cell stack includes a top electrode. A sidewall spacer structure is formed around the memory cell stack. The sidewall spacer structure includes a first sidewall spacer layer, a second sidewall spacer layer, and a protective sidewall spacer layer sandwiched between the first and second sidewall spacer layers. A dielectric structure is formed over the sidewall spacer structure. A first etch process is performed on the dielectric structure and the second sidewall spacer layer to define an opening above the top electrode. The second sidewall spacer layer and the dielectric structure are etched at a higher rate than the protective sidewall spacer layer during the first etch process. A top electrode via is formed within the opening.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: November 14, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yao-Wen Chang, Chung-Chiang Min, Harry-Hak-Lay Chuang, Hung Cho Wang, Tsung-Hsueh Yang, Yuan-Tai Tseng, Sheng-Huang Huang, Chia-Hua Lin
  • Publication number: 20230363178
    Abstract: 1. Various embodiments of the present disclosure are directed towards a ferroelectric random-access memory (FeRAM) cell or some other suitable type of memory cell comprising a bottom-electrode interface structure. The memory cell further comprises a bottom electrode, a switching layer over the bottom electrode, and a top electrode over the switching layer. The bottom-electrode interface structure separates the bottom electrode and the switching layer from each other. Further, the interface structure is dielectric and is configured to block or otherwise resist metal atoms and/or impurities in the bottom electrode from diffusing to the switching layer. By blocking or otherwise resisting such diffusion, leakage current may be decreased. Further, endurance of the memory cell may be increased.
    Type: Application
    Filed: July 18, 2023
    Publication date: November 9, 2023
    Inventors: Tzu-Yu Lin, Chia-Wen Zhong, Yao-Wen Chang
  • Publication number: 20230343642
    Abstract: The present disclosure relates to an integrated chip structure. The integrated chip structure includes a substrate. One or more lower interconnects are disposed within a lower inter-level dielectric (ILD) structure over the substrate. A plasma induced damage (PID) mitigation layer is disposed over the lower ILD structure. The PID mitigation layer has a porous structure including a metal. A first upper interconnect is laterally surrounded by an upper ILD structure over the PID mitigation layer. The first upper interconnect extends from over the PID mitigation layer to the one or more lower interconnects.
    Type: Application
    Filed: July 1, 2022
    Publication date: October 26, 2023
    Inventors: Chia-Wen Zhong, Yen-Liang Lin, Yao-Wen Chang
  • Publication number: 20230345786
    Abstract: An interconnect structure includes at least a first interconnect element and a second interconnect element. A conductive pad layer is disposed over, and electrically coupled to, the first interconnect element. A capping layer is disposed over the conductive pad layer. The capping layer includes titanium nitride. A dielectric layer is disposed over the capping layer. A conductive contact extends vertically through at least a first portion of the dielectric layer and the capping layer. The conductive contact is coupled to the first interconnect element through the conductive pad layer. A conductive via extends vertically through at least a second portion of the dielectric layer. The conductive via is coupled to the second interconnect element.
    Type: Application
    Filed: August 18, 2022
    Publication date: October 26, 2023
    Inventors: Ching Ju Yang, Yao-Wen Chang, Chih-Chung Lai
  • Patent number: 11798639
    Abstract: A memory device and an operation method thereof are disclosed. The memory device includes a P-well region, a common source line, a ground selection line, at least one dummy ground selection line, a plurality of word lines, at least one dummy string selection line, a string selection line, at least one bit line and at least one memory string. The gates of a plurality of memory cells of the memory string are connected to the word lines. The operation method includes the following steps. Performing a read operation and applying a read voltage on the selected word line. Applying a pass voltage on other unselected word lines and the ground selection lines, etc. Before ending of the read operation, firstly decreasing voltages of the string selection line and the dummy string selection line in advance, then increasing voltage of the bit line.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: October 24, 2023
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Guan-Wei Wu, Yao-Wen Chang, Chun-Liang Lu, I-Chen Yang
  • Patent number: 11792996
    Abstract: Various embodiments of the present disclosure are directed towards a ferroelectric random-access memory (FeRAM) cell or some other suitable type of memory cell comprising a bottom-electrode interface structure. The memory cell further comprises a bottom electrode, a switching layer over the bottom electrode, and a top electrode over the switching layer. The bottom-electrode interface structure separates the bottom electrode and the switching layer from each other. Further, the interface structure is dielectric and is configured to block or otherwise resist metal atoms and/or impurities in the bottom electrode from diffusing to the switching layer. By blocking or otherwise resisting such diffusion, leakage current may be decreased. Further, endurance of the memory cell may be increased.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: October 17, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tzu-Yu Lin, Chia-Wen Zhong, Yao-Wen Chang
  • Patent number: 11758724
    Abstract: A memory device includes a substrate, a laminated structure and a memory string. The laminated structure is disposed on the substrate. The laminated structure includes a plurality of insulating layers and a plurality of conductive layers alternately stacked along a first direction. The memory string is accommodated in the laminated structure along the first direction. The memory string includes a memory layer and a channel layer, and the memory layer is disposed between the laminated structure and the channel layer. At least a portion of the memory layer and the insulating layers are overlapped along the first direction.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: September 12, 2023
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Guan-Wei Wu, Yao-Wen Chang, I-Chen Yang