Patents by Inventor Jui-Chun Chang

Jui-Chun 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: 20250130368
    Abstract: A silicon photonic platform includes a composite substrate with a first photonic platform layer which includes a photonic platform material. A first signal layer covers the first photonic platform layer, has a top surface, and includes the photonic platform material and a first signal material. A photonic platform spectral signal is different from the first signal material spectral signal. The second photonic platform layer has a top surface, covers at least a portion of the top surface of the first signal, and includes the photonic platform material. The second photonic platform layer includes at least one ridge structure, and forms a silicon photonic platform together with the first photonic platform layer.
    Type: Application
    Filed: October 20, 2023
    Publication date: April 24, 2025
    Applicant: Vanguard International Semiconductor Corporation
    Inventors: Ming-Cheng Lo, Shih-Chang Huang, Jui-Chun Chang, Wu-Hsi Lu, Yu-Che Tsai, Shih-Hao Liu, Yen-Shih Ho
  • Publication number: 20250076580
    Abstract: A photonic integrated circuit structure includes a semiconductor substrate. A waveguide is disposed above the semiconductor substrate and has an inclined plane. A mirror coating layer is conformally disposed on the inclined plane. A cladding layer covers the waveguide and the mirror coating layer. A hole is disposed in the semiconductor substrate or the cladding layer, and the hole overlaps the inclined plane in a vertical direction. In addition, an optical fiber is disposed in the hole to receive a reflected light from the mirror coating layer.
    Type: Application
    Filed: August 31, 2023
    Publication date: March 6, 2025
    Applicant: Vanguard International Semiconductor Corporation
    Inventors: Ming-Cheng Lo, Jui-Chun Chang, Shih-Chang Huang, Wu-Hsi Lu, Yu-Che Tsai, Shih-Hao Liu, Yen-Shih Ho
  • Publication number: 20240274635
    Abstract: An optical sensor device is provided. The optical sensor device includes a semiconductor substrate, an isolation feature, a first doped region, a second doped region, and a third doped region. The semiconductor substrate of a first conductivity type includes a sensing region surrounded by an isolation region. The first doped region of a second conductivity type is located in the sensing region. The second doped region of the second conductivity type is located in the sensing region and above the first doped region. The third doped region of the first conductivity type is located in the sensing region and on the second doped region. In a cross-sectional view, the first doped region has a first length, the second doped region has a second length, and a first ratio, which is the ratio of the second length to the first length, is greater than 0 and less than 1.
    Type: Application
    Filed: February 13, 2023
    Publication date: August 15, 2024
    Applicant: Vanguard International Semiconductor Corporation
    Inventors: Shih-Hao LIU, Yu-Che TSAI, Jui-Chun CHANG, Wu-Hsi LU, Ming-Cheng LO
  • Patent number: 11398557
    Abstract: A semiconductor device is provided. The semiconductor device includes a substrate, a first well, a second well, an isolation structure, a first field plate, a gate structure, a drain structure, and a source structure. The first well and the second well adjoin each other. The first well and the second well are disposed in the substrate. The isolation structure is disposed on the first well. The first field plate is disposed on the isolation structure. The gate structure crosses the first well and the second well, and an opening is defined between the first field plate and the gate structure to expose an edge of the isolation structure adjacent to the gate structure. The drain structure is disposed in the first well. The source structure is disposed in the second well.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: July 26, 2022
    Assignee: Vanguard International Semiconductor Corporation
    Inventors: Yi-Ching Chung, Jui-Chun Chang, Fu-Chun Tseng, Yu-Ping Ho
  • Publication number: 20220059662
    Abstract: A semiconductor device is provided. The semiconductor device includes a substrate, a first well, a second well, an isolation structure, a first field plate, a gate structure, a drain structure, and a source structure. The first well and the second well adjoin each other. The first well and the second well are disposed in the substrate. The isolation structure is disposed on the first well. The first field plate is disposed on the isolation structure. The gate structure crosses the first well and the second well, and an opening is defined between the first field plate and the gate structure to expose an edge of the isolation structure adjacent to the gate structure. The drain structure is disposed in the first well. The source structure is disposed in the second well.
    Type: Application
    Filed: August 18, 2020
    Publication date: February 24, 2022
    Applicant: VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATION
    Inventors: Yi-Ching CHUNG, Jui-Chun CHANG, Fu-Chun TSENG, Yu-Ping HO
  • Publication number: 20200365686
    Abstract: A semiconductor device includes a charge-absorbing structure disposed over a substrate; an insulating layer disposed over the charge-absorbing structure; a semiconductor layer disposed over the insulating layer; a plurality of first doped regions and a plurality of second doped regions disposed in the semiconductor layer, wherein the first doped regions and second doped regions extend in a first direction and are alternately arranged along a second direction that is different than the first direction, and the plurality of first doped regions and the plurality of second doped regions have different conductivity types; a source and a drain disposed respectively on opposite sides of the plurality of first doped regions and the plurality of second doped regions and extend in the second direction; and a gate disposed on the plurality of first doped regions and the plurality of second doped regions and extends in the second direction.
    Type: Application
    Filed: May 16, 2019
    Publication date: November 19, 2020
    Applicant: Vanguard International Semiconductor Corporation
    Inventors: Jui-Chun CHANG, Bo-Yuan SU, Chien-Nan LIAO
  • Patent number: 10840328
    Abstract: A semiconductor device includes a charge-absorbing structure disposed over a substrate; an insulating layer disposed over the charge-absorbing structure; a semiconductor layer disposed over the insulating layer; a plurality of first doped regions and a plurality of second doped regions disposed in the semiconductor layer, wherein the first doped regions and second doped regions extend in a first direction and are alternately arranged along a second direction that is different than the first direction, and the plurality of first doped regions and the plurality of second doped regions have different conductivity types; a source and a drain disposed respectively on opposite sides of the plurality of first doped regions and the plurality of second doped regions and extend in the second direction; and a gate disposed on the plurality of first doped regions and the plurality of second doped regions and extends in the second direction.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: November 17, 2020
    Assignee: Vanguard International Semiconductor Corporation
    Inventors: Jui-Chun Chang, Bo-Yuan Su, Chien-Nan Liao
  • Publication number: 20200268111
    Abstract: An inflatable shoe stretcher includes a bag body that is formed by coupling outer peripheries of two bag sheets and that defines an air-filling space therein, an one-way air inflow unit that is mounted between the bag sheets for filling air into the air-filling space, and a heat-sealed unit that is formed by coupling portions of the bag sheets. The heat-sealed unit includes two main heat-sealed subunits for segregating the air-filling space into three air-filling space portions. The bag body is able to be bent alongside the main heat-sealed subunits when the air-filling space portions are filled with air.
    Type: Application
    Filed: September 12, 2019
    Publication date: August 27, 2020
    Inventor: Jui-Chun Chang
  • Publication number: 20200185138
    Abstract: An inductor structure is provided. The inductor structure includes a substrate, a first dielectric layer formed on the substrate, a first metal layer formed in the first dielectric layer, a second dielectric layer formed on the first dielectric layer, a second metal layer formed in the second dielectric layer, at least one intermediate dielectric layer formed between the first and second dielectric layers, at least one intermediate metal layer formed in the intermediate dielectric layer, and a plurality of vias connected to the first metal layer and the intermediate metal layer. The vias are connected to the second metal layer and the intermediate metal layer. The first metal layer, the vias, the intermediate metal layer, and the second metal layer form an extension path which extends in a spiral mode.
    Type: Application
    Filed: December 5, 2018
    Publication date: June 11, 2020
    Applicant: Vanguard International Semiconductor Corporation
    Inventors: Chien-Nan LIAO, Bo-Yuan SU, Jui-Chun CHANG
  • Patent number: 10573738
    Abstract: A semiconductor device is provided. The device includes a substrate having a first conductivity type. The device further includes a drain region, a source region, and a well region disposed in the substrate. The well region is disposed between the drain region and the source region and having a second conductivity type opposite to the first conductivity type. The device further includes a plurality of doped regions disposed within the well region. The doped regions are vertically and horizontally offset from each other. Each of the doped regions includes a lower portion having the first conductivity type, and an upper portion stacked on the lower region and having the second conductivity type.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: February 25, 2020
    Assignee: Vanguard International Semiconductor Corporation
    Inventors: Shang-Hui Tu, Chih-Jen Huang, Jui-Chun Chang, Shin-Cheng Lin, Yu-Hao Ho, Wen-Hsin Lin
  • Publication number: 20190305128
    Abstract: A semiconductor structure includes an insulating layer, a semiconductor layer, and an epitaxial layer. The insulating layer is disposed on a substrate. The semiconductor layer is disposed on the insulating layer. The semiconductor layer includes a first buried layer and a second buried layer. The first buried layer has a first conductivity type. The second buried layer is disposed over the first buried layer and has a second conductivity type opposite to the first conductivity type. The second buried layer has at least two portions separate from each other. The epitaxial layer is disposed on the semiconductor layer.
    Type: Application
    Filed: April 3, 2018
    Publication date: October 3, 2019
    Applicant: Vanguard International Semiconductor Corporation
    Inventors: Ankit KUMAR, Chia-Hao LEE, Jui-Chun CHANG
  • Patent number: 10396196
    Abstract: A semiconductor device includes a substrate, a semiconductor layer, a doped region, a device region, a first isolation structure, a second isolation structure and a terminal. The semiconductor layer is disposed over the substrate. The doped region is disposed in the semiconductor layer. The device region is disposed on the doped region and includes a source, a drain and a gate. The first isolation structure is disposed in the semiconductor layer and surrounds the doped region. The second isolation structure surrounds the first isolation structure and is spaced apart from the first isolation structure. The terminal is disposed between the first isolation structure and the second isolation structure, and is equipotential with the source.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: August 27, 2019
    Assignee: VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATION
    Inventors: Jui-Chun Chang, Shih-Kai Wu, Cheng-Yu Wang, Li-Yang Hong, Chia-Ming Hsu
  • Patent number: 10347524
    Abstract: A trench isolation structure is provided. The trench isolation structure includes a substrate. A polygonal trench is disposed in the substrate. An insulating material is disposed in the polygonal trench, and a polygon top-side contact structure is disposed in the polygonal trench and surrounded by the insulating material. The polygon top-side contact structure has the same shape as the polygonal trench from a top view. A method for forming the trench isolation structure is also provided.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: July 9, 2019
    Assignee: VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATION
    Inventors: Hsiung-Shih Chang, Jui-Chun Chang, Li-Che Chen
  • Publication number: 20190157442
    Abstract: A semiconductor device is provided. The device includes a substrate having a first conductivity type. The device further includes a drain region, a source region, and a well region disposed in the substrate. The well region is disposed between the drain region and the source region and having a second conductivity type opposite to the first conductivity type. The device further includes a plurality of doped regions disposed within the well region. The doped regions are vertically and horizontally offset from each other. Each of the doped regions includes a lower portion having the first conductivity type, and an upper portion stacked on the lower region and having the second conductivity type.
    Type: Application
    Filed: December 27, 2018
    Publication date: May 23, 2019
    Inventors: Shang-Hui TU, Chih-Jen HUANG, Jui-Chun CHANG, Shin-Cheng LIN, Yu-Hao HO, Wen-Hsin LIN
  • Patent number: 10205014
    Abstract: A semiconductor device is provided. The device includes a substrate having a first conductivity type. The device further includes a drain region, a source region, and a well region disposed in the substrate. The well region is disposed between the drain region and the source region and having a second conductivity type opposite to the first conductivity type. The device further includes a plurality of doped regions disposed within the well region. The doped regions are vertically and horizontally offset from each other. Each of the doped regions includes a lower portion having the first conductivity type, and an upper portion stacked on the lower region and having the second conductivity type.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: February 12, 2019
    Assignee: Vanguard International Semiconductor Corporation
    Inventors: Shang-Hui Tu, Chih-Jen Huang, Jui-Chun Chang, Shin-Cheng Lin, Yu-Hao Ho, Wen-Hsin Lin
  • Patent number: 10056260
    Abstract: A method for manufacturing a semiconductor device includes forming a first well region in a semiconductor substrate, forming isolation structures on the semiconductor substrate, and forming second well regions and a third well region in the first well region, wherein the second well regions are isolated from the third well region by the isolation structures, and two of the adjacent second well regions have a first distance between them. The method also includes performing a rapid thermal annealing process to shorten the first distance to a second distance. The method further includes forming first barrier metal layers on the first well region and covering the second well regions, forming a second barrier metal layer on the first well region and covering the third well region, forming first electrodes on the first barrier metal layers, and forming a second electrode on the second barrier metal layer.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: August 21, 2018
    Assignee: VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATION
    Inventors: Manoj Kumar, Hsiung-Shih Chang, Pei-Heng Hung, Chia-Hao Lee, Jui-Chun Chang, Chih-Cherng Liao
  • Publication number: 20180190493
    Abstract: A method for manufacturing a semiconductor device includes forming a first well region in a semiconductor substrate, forming isolation structures on the semiconductor substrate, and forming second well regions and a third well region in the first well region, wherein the second well regions are isolated from the third well region by the isolation structures, and two of the adjacent second well regions have a first distance between them. The method also includes performing a rapid thermal annealing process to shorten the first distance to a second distance. The method further includes forming first barrier metal layers on the first well region and covering the second well regions, forming a second barrier metal layer on the first well region and covering the third well region, forming first electrodes on the first barrier metal layers, and forming a second electrode on the second barrier metal layer.
    Type: Application
    Filed: January 5, 2017
    Publication date: July 5, 2018
    Applicant: Vanguard International Semiconductor Corporation
    Inventors: Manoj KUMAR, Hsiung-Shih CHANG, Pei-Heng HUNG, Chia-Hao LEE, Jui-Chun CHANG, Chih-Cherng LIAO
  • Publication number: 20180076288
    Abstract: A trench isolation structure is provided. The trench isolation structure includes a substrate. A polygonal trench is disposed in the substrate. An insulating material is disposed in the polygonal trench, and a polygon top-side contact structure is disposed in the polygonal trench and surrounded by the insulating material. The polygon top-side contact structure has the same shape as the polygonal trench from a top view. A method for forming the trench isolation structure is also provided.
    Type: Application
    Filed: September 12, 2016
    Publication date: March 15, 2018
    Applicant: Vanguard International Semiconductor Corporation
    Inventors: Hsiung-Shih CHANG, Jui-Chun CHANG, Li-Che CHEN
  • Patent number: 9773681
    Abstract: A semiconductor device is provided. The semiconductor device includes a substrate; an epitaxial layer disposed over the substrate; a gate electrode disposed over the epitaxial layer; a source region and a drain region disposed in the epitaxial layer at opposite sides of the gate electrode; a trench extending from a top surface of the epitaxial layer through the source region into the epitaxial layer, wherein the trench has a slanted side and a bottom surface; and a first conductive-type linking region having the first conductive type, wherein the first conductive-type linking region surrounds the slanted side of the trench and contacts the bottom surface of the trench, wherein the first conductive-type linking region electrically connects the source region and the substrate. The present disclosure also provides a method for manufacturing this semiconductor device.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: September 26, 2017
    Assignee: VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATION
    Inventors: Manoj Kumar, Tsung-Hsiung Lee, Pei-Heng Hung, Chia-Hao Lee, Jui-Chun Chang
  • Patent number: D926589
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: August 3, 2021
    Inventor: Jui-Chun Chang