Patents by Inventor Cheng-ta Wu

Cheng-ta Wu 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: 11955496
    Abstract: The present disclosure relates to an image sensor having a photodiode surrounded by a back-side deep trench isolation (BDTI) structure, and an associated method of formation. In some embodiments, a plurality of pixel regions is disposed within an image sensing die and respectively comprises a photodiode configured to convert radiation into an electrical signal. The photodiode comprises a photodiode doping column with a first doping type surrounded by a photodiode doping layer with a second doping type that is different than the first doping type. A BDTI structure is disposed between adjacent pixel regions and extending from the back-side of the image sensor die to a position within the photodiode doping layer. The BDTI structure comprises a doped liner with the second doping type and a dielectric fill layer. The doped liner lines a sidewall surface of the dielectric fill layer.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: April 9, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Cheng-Ta Wu, Kuo-Hwa Tzeng, Yeur-Luen Tu
  • Patent number: 11929379
    Abstract: Various embodiments of the present disclosure are directed towards a method for forming an integrated chip, the method includes forming a through substrate via (TSV) in a first substrate. The TSV continuously extends from a first surface of the first substrate to a second surface of the first substrate. A conductive contact is formed on the second surface of the first substrate. The conductive contact comprises a first conductive layer disposed on the TSV. An upper conductive layer is formed between the conductive contact and the TSV. The upper conductive layer comprises a silicide of a conductive material of the first conductive layer.
    Type: Grant
    Filed: June 16, 2022
    Date of Patent: March 12, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Min-Ying Tsai, Cheng-Ta Wu, Yeur-Luen Tu
  • Patent number: 11923235
    Abstract: A method includes forming a first trench and a second trench in a semiconductor substrate; forming a first mask over the semiconductor substrate, wherein the first mask is disposed in a first portion of the first trench and exposes the second trench and a second portion of the first trench; after forming the first mask, deepening the second trench and the second portion of the first trench; after deepening the second trench and the second portion of the first trench, removing the first mask; and after removing the first mask, filling a dielectric material in both the first and second trenches.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: March 5, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Cheng-Ta Wu, Chii-Ming Wu, Sen-Hong Syue, Cheng-Po Chau
  • Publication number: 20240067512
    Abstract: An automatic fluid replacement device is adapted to be mounted on an opening of a storage barrel. The automatic fluid replacement device includes a robotic arm, at least one fluid convey joint and a controller. The robotic arm has a gripper. The fluid convey joint includes a convey pipe, a sleeve and a sealing bag. The convey pipe is configured to deliver a fluid. The sleeve is sleeved on the convey pipe. The gripper clamps the sleeve. The sealing bag is sleeved on the sleeve. The controller is configured for automatically controlling the robotic arm to move the fluid convey joint into the opening and controlling the sealing bag to be inflated to seal the opening.
    Type: Application
    Filed: October 27, 2022
    Publication date: February 29, 2024
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Cheng-Han TSAI, Wei-Lung PAN, Chih-Ta WU, I-hsin LIN
  • Patent number: 11901435
    Abstract: Various embodiments of the present disclosure are directed towards a method for forming an integrated circuit (IC). The method includes forming a gate electrode and a gate dielectric stacked over a substrate. A sidewall liner is formed along sidewalls of the gate electrode and along an upper surface of the substrate. A sidewall spacer is formed on sidewalls and an upper surface of the sidewall liner. The sidewall spacer consists essentially of silicon oxycarbonitride and has a dielectric constant great than that of the sidewall liner and less than that of the gate dielectric. A pair of source/drain regions is formed respectively on opposite sides of the gate electrode.
    Type: Grant
    Filed: March 29, 2022
    Date of Patent: February 13, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Cheng-Ta Wu
  • Patent number: 11855159
    Abstract: Various embodiments of the present application are directed to a method for forming a thin semiconductor-on-insulator (SOI) substrate without implantation radiation and/or plasma damage. In some embodiments, a device layer is epitaxially formed on a sacrificial substrate and an insulator layer is formed on the device layer. The insulator layer may, for example, be formed with a net charge that is negative or neutral. The sacrificial substrate is bonded to a handle substrate, such that the device layer and the insulator layer are between the sacrificial and handle substrates. The sacrificial substrate is removed, and the device layer is cyclically thinned until the device layer has a target thickness. Each thinning cycle comprises oxidizing a portion of the device layer and removing oxide resulting from the oxidizing.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: December 26, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Cheng-Ta Wu, Chia-Shiung Tsai, Jiech-Fun Lu, Kuo-Hwa Tzeng, Shih-Pei Chou, Yu-Hung Cheng, Yeur-Luen Tu
  • Publication number: 20230387170
    Abstract: The present disclosure relates to an image sensor having a photodiode surrounded by a back-side deep trench isolation (BDTI) structure, and an associated method of formation. In some embodiments, a plurality of pixel regions is disposed within an image sensing die and respectively comprises a photodiode configured to convert radiation into an electrical signal. The photodiode comprises a photodiode doping column with a first doping type surrounded by a photodiode doping layer with a second doping type that is different than the first doping type. A BDTI structure is disposed between adjacent pixel regions and extending from the back-side of the image sensor die to a position within the photodiode doping layer. The BDTI structure comprises a doped liner with the second doping type and a dielectric fill layer. The doped liner lines a sidewall surface of the dielectric fill layer.
    Type: Application
    Filed: August 3, 2023
    Publication date: November 30, 2023
    Inventors: Cheng-Ta Wu, Kuo-Hwa Tzeng, Yeur-Luen Tu
  • Patent number: 11830764
    Abstract: Various embodiments of the present application are directed towards a method for forming a semiconductor-on-insulator (SOI) substrate with a thick device layer and a thick insulator layer. In some embodiments, the method includes forming an insulator layer covering a handle substrate, and epitaxially forming a device layer on a sacrificial substrate. The sacrificial substrate is bonded to a handle substrate, such that the device layer and the insulator layer are between the sacrificial and handle substrates, and the sacrificial substrate is removed. The removal includes performing an etch into the sacrificial substrate until the device layer is reached. Because the device layer is formed by epitaxy and transferred to the handle substrate, the device layer may be formed with a large thickness. Further, because the epitaxy is not affected by the thickness of the insulator layer, the insulator layer may be formed with a large thickness.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: November 28, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Cheng-Ta Wu, Chia-Shiung Tsai, Jiech-Fun Lu, Kuan-Liang Liu, Shih-Pei Chou, Yu-Hung Cheng, Yeur-Luen Tu
  • Publication number: 20230377948
    Abstract: Various embodiments of the present application are directed towards a method for forming a semiconductor-on-insulator (SOI) substrate with a thick device layer and a thick insulator layer. In some embodiments, the method includes forming an insulator layer covering a handle substrate, and epitaxially forming a device layer on a sacrificial substrate. The sacrificial substrate is bonded to a handle substrate, such that the device layer and the insulator layer are between the sacrificial and handle substrates, and the sacrificial substrate is removed. The removal includes performing an etch into the sacrificial substrate until the device layer is reached. Because the device layer is formed by epitaxy and transferred to the handle substrate, the device layer may be formed with a large thickness. Further, because the epitaxy is not affected by the thickness of the insulator layer, the insulator layer may be formed with a large thickness.
    Type: Application
    Filed: August 4, 2023
    Publication date: November 23, 2023
    Inventors: Cheng-Ta Wu, Chia-Shiung Tsai, Jiech-Fun Lu, Kuan-Liang Liu, Shih-Pei Chou, Yu-Hung Cheng, Yeur-Luen Tu
  • Publication number: 20230335039
    Abstract: A color adjustment device applied to a display panel includes a first controller and a second controller. The first controller is configured to control light emission of the display panel. The second controller is connected to the first controller, and is configured to receive an input image, and determine whether a blue component proportion of the input image is greater than a preset proportion and whether luminance of the display panel is lower than a luminance threshold value, wherein at least one pulse signal is transmitted from the second controller to the first controller through a first signal line when the blue component proportion is greater than the preset proportion and the luminance of the display panel is lower than the luminance threshold value.
    Type: Application
    Filed: August 3, 2022
    Publication date: October 19, 2023
    Inventors: Chang Lin LIOU, Chih Hao LO, Cheng Ta WU
  • Publication number: 20230307231
    Abstract: Various embodiments of the present application are directed towards a semiconductor-on-insulator (SOI) substrate. The SOI substrate includes a handle substrate; a device layer overlying the handle substrate; and an insulator layer separating the handle substrate from the device layer. The insulator layer meets the device layer at a first interface and meets the handle substrate at a second interface. The insulator layer comprises a getter material having a getter concentration profile. The handle substrate contains getter material and has a handle getter concentration profile. The handle getter concentration profile has a peak at the second interface and a gradual decline beneath the second interface until reaching a handle getter concentration.
    Type: Application
    Filed: June 2, 2023
    Publication date: September 28, 2023
    Inventors: Cheng-Ta Wu, Chia-Ta Hsieh, Kuo Wei Wu, Yu-Chun Chang, Ying Ling Tseng
  • Patent number: 11710656
    Abstract: The present disclosure, in some embodiments, relates to a method of forming a semiconductor structure. The method includes forming a plurality of bulk micro defects within a handle substrate. Sizes of the plurality of bulk micro defects are increased to form a plurality of bulk macro defects (BMDs) within the handle substrate. Some of the plurality of BMDs are removed from within a first denuded region and a second denuded region arranged along opposing surfaces of the handle substrate. An insulating layer is formed onto the handle substrate. A device layer comprising a semiconductor material is formed onto the insulating layer. The first denuded region and the second denuded region vertically surround a central region of the handle substrate that has a higher concentration of the plurality of BMDs than both the first denuded region and the second denuded region.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: July 25, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Cheng-Ta Wu, Kuan-Liang Liu
  • Patent number: 11705328
    Abstract: Various embodiments of the present application are directed towards a semiconductor-on-insulator (SOI) substrate. The SOI substrate includes a handle substrate; a device layer overlying the handle substrate; and an insulator layer separating the handle substrate from the device layer. The insulator layer meets the device layer at a first interface and meets the handle substrate at a second interface. The insulator layer comprises a getter material having a getter concentration profile. The handle substrate contains getter material and has a handle getter concentration profile. The handle getter concentration profile has a peak at the second interface and a gradual decline beneath the second interface until reaching a handle getter concentration.
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: July 18, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Cheng-Ta Wu, Chia-Ta Hsieh, Kuo Wei Wu, Yu-Chun Chang, Ying Ling Tseng
  • Publication number: 20230154799
    Abstract: A method includes forming patterned masks over a semiconductor substrate; etching the semiconductor substrate using the patterned masks as an etch mask to form semiconductor fins with a trench between the semiconductor fins; performing an annealing process using a hydrogen containing gas to smooth surfaces of the semiconductor fins; after performing the annealing process, selectively forming a first liner on the smoothed surfaces of the semiconductor fins, while leaving surfaces of the patterned masks exposed by the first liner; filling the trench with a dielectric material; and etching back the first liner and the dielectric material to form an isolation structure between the semiconductor fins.
    Type: Application
    Filed: January 6, 2023
    Publication date: May 18, 2023
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chen-Cheng CHOU, Shiu-Ko JANGJIAN, Cheng-Ta WU
  • Patent number: 11610808
    Abstract: A semiconductor wafer and method for manufacturing thereof are provided. The semiconductor wafer includes a handling substrate and a silicon layer over the handling substrate and having a {111} facet at an edge of a top surface of the silicon layer. The a defect count on the top surface of the silicon layer is less than about 15 each semiconductor wafer. The method includes the following operations: a semiconductor-on-insulator (SOI) substrate is provided, wherein the SOI substrate has a handling substrate, a silicon layer over the handling substrate, and a silicon germanium layer over the silicon layer; and the silicon germanium layer is etched at a first temperature with hydrochloric acid to expose a first surface of the silicon layer.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: March 21, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Yu-Hung Cheng, Cheng-Ta Wu, Yeur-Luen Tu, Ching-Pei Su, Tung-I Lin
  • Patent number: 11611005
    Abstract: A photo-sensitive device includes a uniform layer, a gradated buffer layer over the uniform layer, a silicon layer over the gradated buffer layer, a photo-sensitive light-sensing region in the uniform layer and the silicon layer, a device layer on the silicon layer, and a carrier wafer bonded to the device layer.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: March 21, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Yu-Hung Cheng, Chia-Shiung Tsai, Cheng-Ta Wu, Xiaomeng Chen, Yen-Chang Chu, Yeur-Luen Tu
  • Patent number: 11594597
    Abstract: In some embodiments, the present disclosure relates to an integrated chip that includes a semiconductor device, a polysilicon isolation structure, and a first and second insulator liner. The semiconductor device is disposed on a frontside of a substrate. The polysilicon isolation structure continuously surrounds the semiconductor device and extends from the frontside of the substrate towards a backside of the substrate. The first insulator liner and second insulator liner respectively surround a first outermost sidewall and a second outermost sidewall of the polysilicon isolation structure. The substrate includes a monocrystalline facet arranged between the first and second insulator liners. A top of the monocrystalline facet is above bottommost surfaces of the polysilicon isolation structure, the first insulator liner, and the second insulator liner.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: February 28, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yu-Hung Cheng, Cheng-Ta Wu, Po-Wei Liu, Yeur-Luen Tu, Yu-Chun Chang
  • Patent number: 11551979
    Abstract: A method for manufacturing a semiconductor structure includes etching trenches in a semiconductor substrate to form a semiconductor fin between the trenches; converting sidewalls of the semiconductor fin into hydrogen-terminated surfaces each having silicon-to-hydrogen (S—H) bonds; after converting the sidewalls of the semiconductor fin into the hydrogen-terminated surfaces, depositing a dielectric material overfilling the trenches; and etching back the dielectric material to fall below a top surface of the semiconductor fin.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: January 10, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chen-Cheng Chou, Shiu-Ko Jangjian, Cheng-Ta Wu
  • Publication number: 20220367248
    Abstract: A method includes forming a first trench and a second trench in a semiconductor substrate; forming a first mask over the semiconductor substrate, wherein the first mask is disposed in a first portion of the first trench and exposes the second trench and a second portion of the first trench; after forming the first mask, deepening the second trench and the second portion of the first trench; after deepening the second trench and the second portion of the first trench, removing the first mask; and after removing the first mask, filling a dielectric material in both the first and second trenches.
    Type: Application
    Filed: July 29, 2022
    Publication date: November 17, 2022
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Cheng-Ta WU, Chii-Ming WU, Sen-Hong SYUE, Cheng-Po CHAU
  • Publication number: 20220359273
    Abstract: Various embodiments of the present application are directed towards a method for forming a semiconductor-on-insulator (SOI) substrate with a thick device layer and a thick insulator layer. In some embodiments, the method includes forming an insulator layer covering a handle substrate, and epitaxially forming a device layer on a sacrificial substrate. The sacrificial substrate is bonded to a handle substrate, such that the device layer and the insulator layer are between the sacrificial and handle substrates, and the sacrificial substrate is removed. The removal includes performing an etch into the sacrificial substrate until the device layer is reached. Because the device layer is formed by epitaxy and transferred to the handle substrate, the device layer may be formed with a large thickness. Further, because the epitaxy is not affected by the thickness of the insulator layer, the insulator layer may be formed with a large thickness.
    Type: Application
    Filed: July 21, 2022
    Publication date: November 10, 2022
    Inventors: Cheng-Ta Wu, Chia-Shiung Tsai, Jiech-Fun Lu, Kuan-Liang Liu, Shih-Pei Chou, Yu-Hung Cheng, Yeur-Luen Tu